ML20235J486
| ML20235J486 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 07/31/1986 |
| From: | ABB COMBUSTION ENGINEERING NUCLEAR FUEL (FORMERLY |
| To: | |
| Shared Package | |
| ML20235J475 | List: |
| References | |
| CENPD-274, NUDOCS 8707150593 | |
| Download: ML20235J486 (52) | |
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SUMMARY
REPORT FIRE PROTECTION QUALIFICATION TESTING .. OF SILICON DIOXIDE MINERAL INSULATED CABLE I ) 1 COMBUSTION ENGINEERING Windsor, Connecticut July 1986 a. 8707150593 870706 PDR ADOCK 05000245 F eon
Abstract This report documents fire qualification testing of silicon dioxide mineral insulated cable manufactured for Combustion Engineering by the i Electronic Resources Division of the Whittaker Corporation. The silicon dioxide mineral insulated cable was subjected to 1-h'our and 3-hout fire tests conducted by Underwriters Laboratories and run in accordance with the requirements of ASTM E-119. The cable was mounted !' on a brick wall using normal support methods and directly exposed'to a . fire in a large scale wall' oven. -An electrical signal was carried by i the cables during the fire tests, hose stream tests and for approximately 80 hours following the hose stream tests. l Additional high temperature testing was performed in an oven by l Electronic Resources. I The testing program demonstrated that: l
- The cable and the normal cable supports will function dUring and following exposure to a 3-hour fire.
The cable connector when protected by an insulation-wrap will function during and following exposure to a 1-hour fire. l l The cable will satisfy the fire protection requirements for safety related cable trains given in Appendix R to 10 CFR 50.
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i TABLE OF CONTENTS, Section Description- Page-I LIST OF TABLES iii LIST OF FIGURES iv j 1.0 ' INTRODUCTION 1 1 1.1 Fire Protection Requirements.for! Electrical Cables 1
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Fire Qualification Test Program 1.2 2 2.0 TEST HARDWARE DESCRIPTION 5 l 2.1 Cable 5 2.2 Insulation Wrapping Materials 6 2.3 Support Hardware 7 3.0 QUALIFICATION TEST PROCEDURE 8 3.1 UL Tests 8 l 3.2 ERD Test 17 4.0 QUALIFICATION TEST RESULTS 19 l l 4.1 UL Tests 19 4.2 ERD Test 28
5.0 CONCLUSION
S 29 5.1 Discussion of Tett Results 30 5.2 Cable Electrical Characteristics 38
6.0 REFERENCES
42 ii
a k List of Tables Number Tit 1e- 3qe 1 Cable Parameters 44 i 2 ERD Part Numbers 45 3 Cross Reference of Cable Serial
. Numbers With Test and Cable Description 46 4 Conductor Resistance Measurements UL Test No. 1- 48 5 Insulation Resistance Before and After UL Test No. 1 50
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l 6 Insulation Resistance During UL l Test No. 1 55 7 Voltage Withstand Test-UL. i Test No. 1 61 l 1 i 8 Temperature of Connector Inside ; Insulation Wrap -UL Test No. 1- 62 9 Cable Temperature Outside Furnace-UL Test No.1 63 .I l l 10 Conductor Resistance Measurements ! UL' Test No. 2 64 l 11 Insulation Resistance Before and After OL Test No. 2 65 12 Insulation Resistance During UL Test No. 2 68 j 13 Voltage Withstand Test-UL Test No. 2 74 14 Cable Temperature Outside Furnace l UL Test No. 2 75 ; i 15 Insulation Resistance-ERD Elevated Temperature Test 76 16 Conductor Resistance Measurements
- ERD Elevated Temperature Test 77 17 Electrical Properties at Elevated *-
Temperature 78 1 iii u_ . - - - . - = - _ - - _ - - - _ - _ - - _ _ _ _ - - - - - - - - - - - . - - --
List of Figures Number Title Page 1 Cable Assemblies 79 2 Arrangement of Cable Assemblies and Orientation of Furnace and Brick Wall-UL Test No. 1 80 3 Cable Assemb' lies on Test Wall , Before UL Test No. 1 81 ! 4 Protecting Cable Connectors With Insulation Wrap 82 S Cable Assemblies on Unexposed , Side of Test Wall 83 ] 6 Standardized Time Temperature i Curve Specified By ASTM E-119 84 l 7 ASTM E-119 Time Temperature Curve and Actual Average Furnace Temperatures-UL Test No. 1 85 8 Hose Stream Test Following 1-Hour Fire Test 86 9 Cable Assemblies on Test Wall Following UL Test No. 1 87 10 Temperature of Connectors Inside Insulation Wrap-UL Test No. 1 88 11 Arrangement of Cable Assemblies and Orientation of Furnace and Brick Wall-UL Test No. 2 89 12 Cable Assemblies on Test Wall Before UL Test No. 2 90 13 ASTM E-119 Time Temperature Curve and Actual Average Furnace Temperatures-UL Test No. 2 91 14 Hose Stream Test Following 3-Hour Fire Test 92 15 Cable Assemblies on Test Wall Following UL Test No. 2 93 16 Thermocouple Signals Carried By Cable Assemblies 1 and 2 - UL Test No. 2 94 iv I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
. 1
1.0 INTRODUCTION
1.1 FIRE PROTECTION REQUIREMENTS FOR ELECTRICAL' CABLES The fire protection requirements for nuclear power plants are given in Reference 1. This document' states that one train of systems necessary to achieve and maintain hot shutdown conditions must be maintained free of fire damage. Further it requires that systems necessary to achieve and maintain cold i shutdown conditions be repairable within 72 hours. Therefore, one cable train must function during and following a fire. 1 i l Several acceptable methods for protecting cables from fire damage when both redundant cable trains,are in the same fire area are given in Reference 1. These are summarized below: l Separation of redundant cable trains by a fire barrier having a 3-hour rating. I l l Separation of redundant cable trains by a horizontal j distance of 20 feet with no intervening combustible l materials, if the area has fire detectors and an automatic fire suppression system. Enclosure of one redundant train in a fire barrier having , a 1-hour rating, if the fire area has fire detectors and an automatic fire suppression system. Inside noninerted containment, redundant cables can be separated by a noncombustible radiant energy shield. Reference 2 states that a radiant energy shield shall have a fire rating of one-half hour. The fire ratings referred to in References 1 and 2 are defined by the length of exposure to a standardized fire which 4s specified in Reference 3. For example, to obtain a j 1 v L___-_______ _ _ _ _ .
3-hour fire rating for a product, it must be ~ exposed to the
., standardized fire which follows the time-temperature curve given in Reference 3 for 3 hours and to the specified. hose ,
stream test following the fire exposure. During these tests the product must satisfy appropriate acceptance criteria.. 1.2 FIRE QUALIFICATION TEST PROGRAM The test program described in this' report demonstrates that a
. unique silicon dioxide mineral insulated (MI) ca'ble product will function during direct exposure to a standardized fire.
Therefore it provides an equivalent level of fire protection to that required by Reference 1. However, since the cable is not protected by a fire barrier it does not literally comply with the requirements of paragraphs III.G.2 or III.G.3 of Reference 1. Reference 4 addresses this subject directly in question 8.10 and states that an exemption or deviation'is required to use this product. i Fire-rated MI cable has been accepted as providing a radiant energy shield in specific configurations in containment (Reference 4 question 3.7.1). Three separate tests were included in the test program.
- A 1-hour fire qualification test conducted at Underwriters Laboratories (UL) December 19-23, 1985.
A 3-hour fire qualification test conducted at UL on January 13-17, 1986. A high temperature electrical property test conducted at Electronic Rescurces on January 21-22, 1986.
l In the 1-hour test 10 cable assemblies were mounted on a brick l wall using normal support methods and exposed to a one hour . fire and hose stream test. The 10 cables included cables with i 10 conductors, 3 conductors, and a single conductor. Also included were cables with factory splices and connectors. The connectors were protected with an insulation wrap. During the j fire test, hose stream test and for a period in excess of 90 hours following the hose stream test, these cables carried an electrical signal except for brief periods where conductor resistance and insulation resistance measurements were taken. i ) The second OL test exposed 6 cables to a 3-hour fire and hose stream test. The 6 cables included cables with 10 conductors, 3 conductors, and a single conductor. Cables with a factory splice were also included. However, cables with connectors were not included in this test. The test procedure was - similar to that used in the 1-hour test. The purpose of the test at Electronic Resources was to obtain high temperature electrical property data on a 2-conductor cable. The cable 9:as placed in a fluidized bed furnace and ! slowly heated to the highest temperature reached during a 3-hour fire test - 1925*F. Conductor resistance and l insulation resistance measurements were taken several times as i the cable was being heated. l A description of the cables tested, the procedure used for each test, and the test results are provided in this report. l Seventeen cables were tested. All conductors in fifteen of these cables remained continuous throughout the test program. l The conductors in two cables did not remain continuous. These cables are discussed in detail later in this report. The test program conclusively showed that:
- Silicon dioxide.MI cable, within specified limits, will
, continue to function during' direct-exposure to a 1-hour-or 3-hour fire.
- The cable returns to essentially pre-fire conditions when the fire exposure' ends. >
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- Cable performance is stable during prolonged periods of ]'
time at high temperature. 1 k I
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l l l 2.0 TEST HARDWARE DESCRIPTION. I 2.1 CABLE. I l The cable tested in the' fire qualification program was i manufactured for-Combustion. Engineering (CE) by the Electronic Resources Division (ERD) of the Whittaker Corporation. -This cable was developed for.. fire protection applications and is unique in several respects from the standard ERD cable
- l. product. It features the following properties:
Silicon dioxide dielectric. Hermetically sealed cable assemblies due to the welded construction and proprietary glass to metal seals in connectors and terminations. - .l Cable is manufactured in 50' foot lengths. Factory splices are used to produce cable assemblies in any length required for a specific application. Conductors can be nickel coated copper, or chromel and alumel. Cable can be manufactured with a wide variation in the number and size of conductors. A composite sheath which includes a copper shield and a stainless steel sheath. 1 Proprietary manufacturing technology which reduces the moisture content of the dielectric below that of standard cable. 4 The test samples were designed to be representative of , actual production cable for fire protection applications. Each cable in the UL tests was terminated with production seals at each C___________ _. . _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ _ __ _ _. _ _ _ _ .
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l , end. Cables with splices and: cable assemblies joined with connectors were included. Cables with different conductor: I L numbers, sizes and materials'were also tested. Each cable ' .
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assembly was approximately 40 feet long-so that fully 25 feet L- could be exposed to the' fire. A -summary of parametersi for the : cables included'in the test program is given in Table 1.- A , q sketch of a set of these cables 1s shown in Figure 1..
. l Each cable ~ assembly was manufactured in accordance with the' -]
ERD part numbers given in Table 2. Table 3 providesta j l cross-reference between the cable assembly. serial number.. the test in which it was used, and a description of-the cable. 2.2 INSULATION WRAP MATERIALS The cable connector is the only part'of the cable assembly:- which is vulnerable to damage from the high' temperatures of.a-1-hour fire. To protect the connector, it was wrapped with I insulation material manufactured by the 3M Company. The'. I following materials were used to wrap the connector: 3M "Interam" E505 Mat-3M "Interam" 303 Putty- i l
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3M Brand #898 Filament Tape i Q. " 1 3M Brand #425 Aluminum Foil Tape r Stainless steel sheet - 0.010 inches thick Stainless steel worm type hose clamps l J i
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1 2.3 SUPPORT HARDWARE' 1 During the fire tests at UL the cable assemblies were mounted , 1
-on a brick wall using standard Unistrut supports and hardware.. _
The following materials.were used: 1 1
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- P 1000 Stainless Steel Unistrut 1 l
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- Unistrut tubing clips P/N 2008 in galvanized steel )
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- Unistrut nut with spring P/N 1006-1420 in galvanized l steel
- Stainless Steel,.1/4"- 20 bolts, 1 inch.in length-l Stainless steel worm type hose clampsL I
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i 3.0 QUALIFICATION TEST PROCEDURE I o 3.1 UL TESTS j The fire qualification tests were conducted in accordance with References 5, 6, and 7. Reference 5 provided the detailed j testing requirements while Reference 6 described the l procedures to be followed in installing the cable assemblies j on the test wall. The UL test procedure was provided in- i Reference 7. , The UL Test Report, Reference 8, provides a very detailed description of the test procedure followed in each test. This j report provides a summary of the test procedure. 3.1.1 1-Hour Test l 3.1.1.1 Installation of Cables on the Test Wall ! l A solid brick wall was constructed in a steel frame to support j the cable assemblies during the fire test. The wall was j approximately 15 feet long,13 feet high, and 13.5 inches thick. The Unistrut supports were held to the wall by threaded steel rods which extended through the wall. Most of the supports were 1 foot lengths of P1000 Unistrut which were l mounted flush to the wall. However, two types of welded , ) Unistrut brackets were also mounted on the wall. One type j supported the wrapped connectors while the other type was ! designed to hold a cable span 9 inches away frem the wall. The Unistrut supports were placed so that the span between supports was 60 inches unless the span contained a splice in , which case it was 36 inches. ') 1 The cable assemblies were removed from their shipping boxes, uncoiled and fastened to the Unistrut supports using tubing { clips, spring nuts, and bolts. Splices were located in the i 1 1
q center.of the span. Cable bends were made around an 8 inch diameter tube.- The ends of the cable were pushed through. wall penetrations so that electrical connections could be.made to the cable on the cold side of the wall. Tubing clip bolts were torqued to 35 inch-pounds. The 3 pairs of cables with connector halves were joined to i make 3 cable assemblies. The connector was tightened with a l pre-set torque spanner. wrench provided by CE. A thermocouple was attached to each connector before they were wrapped with'- ) insulation. The wrapping procedure was done in accordance with the method specified in Reference 6. Pieces of mat- L material 10 inches by 11 inches were wrapped around the cable ) on each side of the connector. Then two additional pieces of the mat, 40 inches by 24.5 inches were wrapped, one piece at a time, around the cable. The resulting insulation wrap was 24.5 inches long, 5.5 inches in diameter, and 7 1ayers thick. Aluminum foil and filament tapes held the mat material in place during the wrapping process. After the mat material was installed the ends of the wrap were coated with a thin layer of 303 putty to seal any openings. Then the stainless steel sheet was wrapped around the insulation and secured with hose clamps. The wrapped connectors were fastened to the Unistrut brackets on the test wall with two additional hose clamps. The clamps were tightened sufficiently to hold the assembly-snugly without crushing the insulation. The wall penetrations were sealed with a firestop system , comprised of hydraulic cement and ceramic fiber insulation. The central 9 inch depth of each opening was tightly packed with ceramic (alumina-silica) fiber. A nominal 2 inch thickness of hydraulic cement was then troweled into the i opening on each side of the wall to fill the remainder of the cavity flush with the surface of the wall. o. The temperature of the cable on the cold side of the wall was monitored with 3 thermocouple attached to one cable. The 9
1 1 i i first thermocouple was located as close as possible to the j point at which the cable exited from the wall penetration, j The second was 1 inch from the wall and the third was 3 inches i from the wall. These three thermocouple provided a ) temperature profile of the cable as a function of distance from the wall. , l 1 The layout of the cables on the test wall is shown in Figures 2 and 3. Figure 2 also lists the length of each cable exposed to the furnace temperatures. Pictures taken during the wrapping of insulation around the connectors are shown in Figure 4. The cold side of the test wall is shown in Figure 1
- 5. This picture shows the Unistrut supports used to hold the cable and the terminal blocks used to make electrical connections to the cable assemblies.
3.1.1.2 Fire Test To run the fire test, the brick wall was moved to the wall l oven and locked into place. The arrangement of the oven and wall.is shown in Figure 2. The oven was gas fired and closely followed the time temperature curve specified by Reference 3 and shown in Figure 6. The temperature of the oven was monitored and controlled by 12 thermocouple placed 6 inches from the surface of the wall. At the 60 minute point, the furnace was adjusted to maintain a constant temperature of approximately 1700*F while the electrical measurements were completed. Following the fire test, the wall was unlatched from the oven and moved about 25 feet where a fire hose was used to direct a water hose stream at the cables and wall. The hose stream test was applied with a 1-1/8 inch diameter nozzle at a pressure of 30 psi from a distance of 20 feet in accordance with the requirements of Reference 3. The hose stream was appiiedtothewallandcableassembliesfor1 min.-57sec. u____________ _ _ _ . _ _ _ _ _ _ - . _ _ _ _ ___,_ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ . - _ _
Following the hose stream test the wall was moved off to the side of the test facility for the post fire integrity test which lasted approximately 90 hours. l 3.1.1.3 Electrical Measurements ; Before the fire test, a set of pre-test conductor resistance j and insulation resistance : measurements were obtained for all ten cables. The insulation resistance measurements were taken with a Megonm Bridge. .
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Prior to the start of the fire test an dectric signal was j applied to each caole. These signals were applied cor.tinuously during the fire test, hose stream test, and post fire integrity test except for brief periods when conductor resistance, insulation " sistance and dielectric strength j l measurements were taken. The electrical signals applied to each cable are sumarized below: Electrical Signals Cable No. Serial No. Description Electrical Signal 1 16-35-00020 1 10/C-Ch Al w/ splice .50 mV DC applied 2 16-35-00010-1 10/C-Ch Al to one pair of 3 16-35-00030-1 conductors. 'The 16-35-00040-2 10/C-Ch Al w/ connector voltage across an . l adjacent pair was measured. ! 4 16-35-00060-1 3/C Cu 1 A DC at 48 V DC 5 16-35-00070-2 3/C Cu w/ splice applied each 6 16-35-00080-1 conductor. 16-35-00090-1 3/C Cu w/ connector { ) 1 i 9
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) l i 0 Electrical Signals L .,
Cable No. SE tal No. Description Electrical Signal' 7 16-35-00100-1 .1/C Cu 1 A DC at'48 V DC-- L , 8 16-35-00110-1 1/C Cu w/ splice applied to each 9 16-35-00120-1 conductor.. 16-35-00130-1 1/C Cu w/ connector 10 '16-35-00050-1 10/C Cu- 30 mA at'48 V.DC applied to one pair of con-- ductors. l I
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l l I i 1 p Conductor. resistance and insulation resistance measurements l.
~were taken on each cable four times during the fire test,.
immediately following the hose stream test, and five times during the post fire integrity test. These insulation j resistance measurements were taken'by placing the cable dielectric in a series circuit with a known' resistance and '
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l-voltage source. By measuring the voltage drop across the known resistance the insulation resistance can be calculated using the following formula: (Vg -Vmeas.)R
- IR =
v l meas. where: IR = Insulation Resistance (ohms)
, V, = Applied Voltage (volts)-
V meas.
= Measured Voltage (volts) l R = Known Resistance (ohms) 1 Insulation resistance measurements were taken at two applied voltages, 49.5 V DC and 200 V DC. The known resistance used 6
l was 1.25x10 ohms. A complex electrical circuit using relays and pushbutton switches was designed and constructed by UL so that the conductor resistance and insulation resistance measurements could be taken rapidly. Depressing a pushbutton energized a I relay which disconnected the applied current or' voltage from a single cable assembly and simultaneously connected two leads from that cable to either a digital multimeter which measured conductor resistance or to the circuit used to determine insulation resistance. This method minimized the length of
- time that each cable did not have an applied current or voltage.
l o. _ _ _ _ _ _ _ _ _ . _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ._ _ _ _ . _ _ . . _ _ _ _ _ _ . . . _ _ _ _ _ _ _____m___.____
'ollowing the 1-hourLfire test, the furnace temperature was-
., maintained at' approximately 1700*F for an additional 10 minutes while the dielectric strength of each cable was measured and recorded. The dielectric strength test .was repeated approximately 40 minutes'after completion of the hose stream test. The dielectric strength test.was run on each cable by shorting all conductors in a cable together and' l applying an AC voltage between the ' conductors and the cable s
. sheath. The voltage was increased at a rate of 100 V AC/sec from 0 to.600 V AC unless.the leakage current exceeded 10 mA.
If the:11mit on leakage current was exceeded, the test instrument was reset:and the process repeated until a voltage l which could be sustained was established. After 1 minute'the leakage current was recorded. Following the post fire integrity test, a complete set of l conductor and insulation-resistance measurements were taken. A Megohm Bridge was used.to take the insulation resistance - measurements. Finally, a dielectric strength test was run on each cable. The results from each test are presented in section 4.0. 3.1.2 3-Hour Test 3.1.2.1 Installation of Cables on' the Test Wall-The cable assemblies were installed on the. test wall using the procedure used to install the cable assemblies for the 1-hour-test. Six assemblies.were used in this test.- Cables with connectors were not included. The cable assemblies are shown installed on the test wall in Figures 11 and 12. l l 1 [
p , 3.1.2.2 Fire Test' The fire test was run in the same manner as the 1-hour test
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except that the test was run for 3 hours. ;The furnace l l_ temperature closely followed the time temperature curve of l Reference 3 which is shown in Figure 6. Following the fire-test, the cable assemblies and test wall .l were subjected to a water hose stream test. The hose stream
- was applied with a 1-1/8 inch diameter nozzle at a pressure of 30 psi from a distance of'20 feet for 4 minutes-53 seconds.
Following the' hose stream test the wall was moved off to the side of the test facility for the post fire. integrity test which lasted approximately 90 hours. 3.1.2.3 Electrical Measurements Before the fire test, a complete set of pre-test conductor resistance and insulation resistance measurements were taken _ . for all 6 cables. The insulation resistance measurements were i taken with a Megohm Bridge. ' Prior to the start of the fire test an electric signal was applied to each cable. The signals were applied continuously-during the fire test, hose stream test, and post fire integrity test except for brief periods when' conductor resistance, insulation resistance and dielectric strength i measurements were taken. The electrical signals applied to ' l each cable are summarized below: l L_---_....-__-__ __ _ . - _ _ _ ___ --_-_?.-...__------------_a-_ _ - - - - _ . . . - - - - - _. _ _ _ . - _ - . _ . _ - --.__-.-.-_..--_._--_.--__-.--__.---_-~-._._-J ._
I 1 1 Electrical Signals
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Cab'le No. Description Electrical Signal Serial NS l l 1 16-35-00010-2 -10/C Ch Al . Note (1) 2 16-35-00020-2 10/C Ch Al w/ splice L l 1 I 3 16-35-00060-2 3/C Cu l A'DC at 48 V DC 4 16-35-00070-1 3/C Cu w/ splice applied to each l-conductor. - 5 16-35-00100-2 1/C Cu 1 A DC at'48 V 0'C 6 16-35-00110-2 1/C Cu.w/ splice applied to each conductor. Note (1): One pair from each cable carried a thermocouple signal from a hot reference to the digital data acquisition. system. A second pair of conductors-in each cable carried a thermocouple signal from a cold reference. Both the hot reference'and cold reference were instrumented with separate thermocouple which input directly into the data acquisition system. The wiring for the thermocouple circuits which included cable assemblies 1 and 2 was complex. Each thermocouple train included thermocouple wire, a. relay, copper wire, a . terminal block, copper wire, the chrome 1/alumel ] conductors in the MI cable assemblies, copper wire, a terminal block, copper wire, a relay, and thermocouple wire which was connected to the data acquisition system. The wiring diagram for these circuits is shown~in-Illustration G2 of Reference 8. Conductor resistance and insulation resistance measurements were taken on each cable eight times during. the- fire test, immediately following the hose stream test and seven times during the post fire integrity test. These measurements were L \
1 1 taken with the'same circuitry and procedures used'in'the 1-hour tert. Insulation resistance' measurements'were taken at
.two applied-voltages 49.8 V DC and 200'V DC. i
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A dielectric strength test was run on each cable during the. fire test at approximately the .1-hour. point and at the ] , , .2.5-hour point. This test was also conducted approximately 50 ) minutes following'the hose stream test. These tests'were run
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using a DC voltage source. The voltage was applied at the rate:of, approximate 1y'100 Y DC per second until breakdown occurred or until reaching 600.V DC. After reaching 600 V DC: or the maximum sustainable voltage,'the voltage was.-held for 1- : 1 I l' minute. The. leakage current was measured at the end of the 1 l
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' minute period. The test was run.by shorting all the cable
. conductors togethe'r and applying the voltage.between the conductors and the cable sheath.
1 Following the post fire integrity test, aLeomplete' set of conductor and insulation resistance measurements were taken. A Megohm Bridge was used to take.these insulation resistance j measurements. A final dielectric strength test was also run on each cable following the post fire integrity test.
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The results from each test' are presented in' Section 4.0. 3.2 ERD TEST The ERD test report, Reference 9, provides a det' ailed test procedure which has been summarized here. A cable with 2 copper conductors was formed into.a spiral with an 8 inch diameter and placed in a zirconia sand fluid bed , furnace. A fluid bed furnace provides a-uniform temperature distribution, however the temperature cannot'be changed-rapidly. To reduce the length of the test, the furnace,,was 6
a
.i' pre-heated to 1000*F before the' cable was' inserted. The- ,. furnace temperature was' increased to 1925 F over a period ~of 7 hours. ;
I 1 The overall length of. the cable was 43.67 feet.- A Llength of' l 37.67 feet was exposed to the furnace- temperature. -Furnace J temperature was' monitored.with anthermocouple attached to'the cable. . Conductor resistance and insulation resistance' measurements were takeit before the. cable was placed .in the furnace,: six ) times as the cable _was heated to 1925'F, and ~ the' following day ' j when the cable had cooled. . Conductor resistance was measured j
'with a Leeds.and Northrup Wheatstone Bridge._. Insulation 'l resistance measurements were made with a General Radio Megohm Bridge at 50' V DC and 200 V DC. Insulation resistance was measured from conductor to conductor and from each' conductor-to the cable sheath.
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4.0 QUALIFICATION TEST RESULTS l 4.1- UL TESTS Reference 8 provides detailed results and ob'servations from i the two tests conducted at UL. These restilts are summarized in this report. 4.1.1 1-Hour Test-l l I The cables were exposed to a well-distributed _ fire. The j furnace temperature closely followed the standard J time-temperature curve. The actual average furnace I temperatures are compared to the standard curve in Figure 7. 1 By 45 seconds after starting the fire test, each cable began j to " snake" between.the supports due to thermal expansion. By .l 4 minutes, 44 seconds the cables had deflected laterally ~ l approximately 6 inches. The magnitude of deflection did not appear to increase or decrease during the remainder of the test. The furnace fire was extinguished at 70 minutes. The hose stream test comenced approximately 3 minutes after 1 the furnace fire was extinguished. The action of the hose
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l stream created clouds of steam and caused many chunks of brick ! to fly out.from the wall. However, the hose stream did not 'I appear to have any significant effect on the cable assemblies, i The action of the hose stream is shown in Figure 8. Following the hose stream test, the wall was moved off to the side of the test facility for the post fire integrity test which lasted about 90 hours. i The conductors in 9 of the 10 cables remained continuous and carried their applied current and voltage throughout the entire test program. The exception was cable assembly 40. This cable is discussed further in Section 5.1.1.3. l
l 1 Following the test, on the-exposed side of the wall, the cable ') 4 remained firmly attached to the support channels. The .I stainless steel sheath of the cable assemblies was discolored as was the stainless steel sheet over the wrapped connectors' l i on cable assemblies 3, 6 and 9. The stainless steel support j channels were also' discolored. The cable clamps were oxidized. Figure 9 shows the cable assemblies following the fire test. On the unexposed side of the wall assembly, no visible changes f occurred. !
- After all post test measurements were made, the protective j
wrap on the connectors of cable assemblies 3, 6 and 9 was removed. Beneath the protective wrap, each of the connectors l appeared to be in its pre-test condition. The< stainless steel } cable sheath was not discolcred, the color of the paint' dots l used to guide connector alignment was unchanged and the ? 0-rings in the connector appeared.to be in original condition. 4.1.1.1 Applied Current and/or Voltage A 50 mV DC signal was applied to one pair of conductors in cable assemblies 1, 2 and 3 and the voltage across an adjacent . 1 pair of conductors was monitored using_a chart recorder with a ) 50 mV range. At approximately 9 minutes into the fire test, ) the voltage across the three non-energized pairs abruptly l increased from 0 and quickly exceeded the 50 mV range of the ; recorder. At 11 minutes, 30 seconds the measured voltage , across these 3 pairs of conductors ranged between 80 and 200.mV. The voltage across the non-energized pairs of conductors in these three cable assemblies remained beyond the 50 mV range of the recorder during the remainder of the fire test. Immediately following the hose stream test, this voltage returned to the' pretest measurement of 0 mV. The cause of this voltage is discussed in Section 5.1.1.1. s
J A 1 A DC current was applied to each conductor in cable l numbers 4 through 9. The 12 conductors in these 6 cables were I placed in a series circuit with a large wire wound variable. resistor and a voltage source. As the cable was exposed to. the fire, the resistance of the conductors increased, however, the 1 A DC current was easily maintained by adjusting the variable resistor. The 1 A DC signal was maintahled l throughout the test program except for brief periods when electrical measurements were being taken.
.I A 30 mA signal at 50 V DC was applied to a pair af conductors in cable number 10.- This signal was maintained until y approximately 38 minutes into the fire test when the i conductors in this cable began to open. Refer to Section ~
I 5.1.1.3 for further discussion. 4.1.1.2 Conductor Resistance Measurements All the conductors in cables numbered 1 through 9 remained continuous through the fire test, hose stream test and the post fire integrity test. The conductors in cable number 10 began to open at the 38 minute. point and were all open following the hose stream test. This is discussed further in Section 5.1.1.3. Conductor resistance measurements taken bafore the fire test, near the end of the fire test, following the hose stream test, and at the end of the post fire integrity test are summarized in Table 4. Additional resistance measurements taken during the fire test and the post fire integrity test are available in Reference 8. The measured values includt the resistance of the wires outside the furnace used to connect the cable assemblies to the test instrumentation. o. L
4 4.1.1.3 Insulation Resistance Measurements The insulation resistance of each cable was directly measured-before the start and at the end of the test program. Voltage measurements were taken during the fire test, imediately following the hose stream test and duririg the post fire integrity test for selected conductors in each cable. From the measurements, insulation resistance values were calculated using the formula given in Sectict 3.1.1.3.
'The voltage measurements were taken as described in Section 3.1.1.3. When taking these measurements, it was observed.that' ,
! the measured voltage generally dccreased as a function of the l i length of time that the voltage was applied. This means that j the insulation resistance was increasing with the duration of l applied voltage. 'Due to the requirement of taking many measurements in a short time, and to take each measurement on a consistent basis the voltage measurement was taken 5 seconds after applying the voltage, even though the soltage was'still l decreasing in many cases. The increase ir, insulation l resistance as a function of the duration of. applied voltage is a phenomenon due to such things as cable capacitance and external circuit resistance (Reference 10).. Normally, insulation resistance readings are taken after 1 or 2 minutes. l However, since 360 measurements were taken during the 1-hour l fire test it was not possible to wait 1 or 2 minutes to take each measurement. The insulation resistance values for each cable are sumarized in Tables 5 and 6. The insulation resistance values measured before and following the test are presented in units of ohms in Table 5. The insulation resistance values determined during the fire test and post fire integrity test are given in Table 6. These values have been normalized by multiplying the insulation resistance in ohms by the length of exposed cable in feet. This allows the insulation resistance values for i L c each cable to be compared on an equal basis. For most cable assemblies, each insulation resistance set includes 3 conductor to conductor values and 3 conductor to sheath values. The minimum, average and maximum values of these groups are given in Table 6. There is only one conductor to sheath value for cable assemblies 7, 8, and 9. This value appears in all three conductor to sheath columns. 4.1.1.4 Voltage Withstand Test The re::ults from the voltage withstand test are summarized in Table 7. 4.1.1.5 Cable Connector Temperature l l The temperature of each connector, inside the insulation wrap, is summarized in Table 8 and is plotted as a function of time in Figure 10. The maximum connector temperature at 60 minutes I and 70 minutes into the fire test was 228'F and 280'F respectively. 4.1.1.6 Cable Temperature Outside Furnace l l The temperatures recorded by the three thermocouple on cable assembly 5 are summarized in Table 9. The maximum cable temperature at its exit point from the test wall at the end of j the fire test was 67'F, an increase of 4*F. l l 4.1.2 3_-Hour Test l The cables were exposed to a well-distributed fire. The furnace temperature closely followed the standard ! time-temperature curve. The actual average furnace
- temperatures are compared to the standard curve in Figure
- 13. By 30 seconds after starting the fire test, each ca,ble l
l l
.. 1
- i l
.3
. began to " snake" between their supports due to thermal
., expansion. By 4 minutes, the cables had deflected laterally approximately 6 inches. .The magnitude of deflection did not appear to ir. crease or decrease during' the remainder of the j test. The furnace fire was extinguished at 180 minutes. I The hose stream test' commenced approx 1mately'3 minutes.after the furnace fire was extinguished. The action of the hose stream created clouds of steam and caused many chunks of brick to fly out from the wall. The hose stream did not appear to j have any s'ignificant effect on'the cable assemblies. The hose l stream is shown in Figure 14. j l }
Following the hose stream test, the wall:was moved off to the j side of the test facility for the post fire integrity test which lasted about 90 hours. The conductors in 5 of the 6 cables remained continuous and i carried tneir applied current and/or voltage throughout thel l test program. The exception was cable number 2 which failed at some point between 67 minutes and 90 minutes of fire exposure. The failure of this cable is discussed further in , Section 5.1.1.4. l t Following the test, en the exposed side of the wai'i, the cable ' n semblies remained firmly attached to the' support channels. The staWiess steel sheath of the cable assemblies was
-disculored. Tha cable clamps were oxidized. Figure 15 shows the cable assemblies following the fire test.
On the unexposed side of the wall assembly, no visible changes occurred. l_ L .a
w 4.1.2.1 Applied Current.and/or Voltage i l Two thermocouple signals were each carried by cable assemblies 1 and 2. One signal was from a hot reference and the other was from a cold reference. Separate reference' thermocouple were a,1so run directly to the .i
-data acquisition system. A complete list of the temperatures recorded every 2.5 minutes during the fire; test 'are given in Referenca 8. ]
Thethermocouplecircuitsthrouihcableassemblies1and2-were interrupted when conductor resistance, insulation -j resistance, and voltage withstand measurements were taken. j The temperatures recorded during these limes.were obviously j meaningless and have not been considered in the plots and discussion which follows. I 1
)
The thermocouple signals carried by the cable assemblies- ) exposed to the fire are compared to the reference-thermoccuole ] signals in Figure 16. The maximum difference for the signals I carried by cable assembly 1 and the reference! thermocouple j was 12.4'F for the hot reference (if data points at 97.5 and 100 minutes are neglected) and 10.7*F for the~ cold' reference. The temperatures recorded at 97.5 and 100 minutes show.a spike
)
which is not consistent with the other data.. Insulati~on. resistance and conductor resistance measurements were taken at -; 93, 96, and 99 minutes. It is felt that these measurements, ; which interrupted the thermocouple circuit briefly caused the I abnormal temperature spike. Cable assembly 2 stopped I functioning electrically at.some 'pcint between 67 minutes and I 90 minutes. Prior to 67 minutes the maximum.diffarence l between the signals carried by the MI cable and.the referenca thermocouple was 7.7'F for the hot reference and 8.2'F for-the cold reference. ,, I h
{ .o The absolute' accuracy of the thermocouple routed through
< cable assemblies 1 and 2 is felt to be affected by the presence of 4 chromel/alumel to copper junctions and the complexity of the electrica.1 circuitry. l l
A 1 A DC current was applied to each conductor in cable. numbers 3 through 6. The 8 conductors in these 4 cables were placed in a series circuit with a large wire wound variable. . resistor and a voltage source. As the cables were exposed to' I the fire, the conductor resistance increased, however, the 1 A DC current'was easily maintained by adjusting the variable l resistor. The 1 A DC current was maintained throughout the I test program except for brief periods when electrical measurements were being taken. 4.1.2.2 Conductor Resistance Measurements All the conductors in cable assemblies 1,.3, 4, 5, and 6 j remained continuous through the fire test, hose stream test ! and the post fire integrity test. The conductor resistance measurements taken on cable assembly 2 through. 65 minutes of the fire test show the conductors to be continuous. Conductor resistance measurements taken beyond this point show'that the cable has been damaged as is discussed further in Section 5.1.1.4. l l Conductor resistance measurements taken before the fire test, at approximately 1-hour and 3-hours into the fire test, immediately following the hose stream test and at the end of the post fire integrity test are summarized in Table 10. The j measured values include the resistance of the test circuitry outside the furnace. s 4.1.2.3 Insulation Resistance Measurements The insulation resistance values for each cable are summarized in Tables 11 and 12. The insulation resistance values l measured before and following the test are presented in units of ohms in Table 11. The insulation resistance values determined during the fire test and post fire integrity test are given in Table 12. These values are expressed in units of l ohm-feet so that the insulation resistance of each cable can be compared without regard to the length of cable exposed to the fire. ; J It was observed during the second test, as in the first test, that the measured voltage generally decreased as a function of the length of time that the voltage was applied. Voltage measurements were again taken after 5 seconds of applied voltage. 4.1.2.4 Voltage Withstand Test The results from the voltage withstand test are summarized in Table 13. I l During the fire test, and immediately following the hose stream test the voltage was increased rapidly to 600 V DC on cable assemblies 1, 3, 5 and 6, held for a minute, and a leakage current reading was taken. With cable assemblies 2 and 4 breakdown occurred as the voltage was being increased. Breakdown occurred several times before a voltage level that could be sustained was established. The instrument used to apply the voltage was not well regulated and consequently the 10 mA maximum current specified by Reference 5 was greatly exceeded. Cable assembly 2 which was functioning electrically I prior to the first voltage breakdown test was not functioning following this test. d-At the end of the test program, all cable assemblies were able to withstand 600 V DC.
l j l 4.1.2.5 Cable Temperature Outside Furnace
. i The temperatures recorded by the three thennocouples mounted l on cable assembly 5 are summarized.in Table 14, The maximum temperature of the cable at its exit point from the test wall l at the end of the 3-hour fire test was 98.8*F an increase of. .]
36*F. I 4.1.3 ERD Test , l 'The results from the test conducted at ERD are provided in ! Reference 9. These results-are summarized in this report. J l Both copper conductors remained continuous' throughout the; l test. I The insulation resistance values are listed ir, Table 15. Thesevalueshavebeennormalizedbyruhtiplyingthemeasured ? insulation resistance times the length of cable exposed to the , l high temperature of the furnace. Insulation resistance l l measurements were taken when the instrument had reached a ) stable value. ) i 1 l Conductor resistance values are given in Table 16. I
s. r
5.0 CONCLUSION
S The fire. qualification _ test' program demonstrated that silicon dioxide MI cable sold by-Combustion Engineering for fire : protection applications will. function during and followihg a-fire. Specifically. .the following fire qualification ratings were established: 3-Hour Fire Rating
- Cable and cable. splices with copper conductors of 0.032 inch diameter .(20 AWG) or larger.
- Copper conductors of 0.032-inch diameter.for currents up to 1 ampere.
- Voltages up to 200 V DC.
Cable with chromel/alumel conductors for thermocouple I applications. Standard cable support hardware. Standard cable support spans of 5 feet and 3 feet for a span with a cable splice. 1-Hour Fire Rating Cable connectors when protected by'an insulation wrap of material manufactured by the 3M Company.
- Cable splice with chromel/alumel conductors.
Support method for connectors protected by an. insulation wrap. ,. l L L
Y . 4 4 , The following additional important factors'were demonstrated-in the test program: Cable electrical prope'rties are stable during11ong. periods at high temperatures.
^
- Cable electrical properties return to' essentially ,
pre-fire conditions following the fire exposure.
- Cab 1'e does not create a fire hazard by conducting heat through a fire barrier.
1 5.1 DISCUSSION OFlTEST RESULTS l 1
. . . I The fire qualification program tested 17 cable ' assemblies.
Ten of these were exposed to a 1-hour fire test,.6.to a 3-hour fire test and 1 to an elevated temperature test. Fifteen.of these cables remained functional throughout the test program. The two cables that did not are discussed in Sections-5.1.1.3-- and 5.1.1.4. 5.1.1 Applied Current and/or Voltage l l 5.1.1.1' Cables With Chrome 1/Alumel Conductors j l In UL Test No. 1, a 50 mV DC signal'was applied to one pair of conductors in cable assemblies 1,2, and 3 and the voltage .
'I across an adjacent pair of conductors'was monitored. The purpose of this measurement was.to determine if cross-talk between pairs of conductors in a multi-conductor. thermocouple.
cable would cause unacceptable signal error during a fire. Several minutes into the fire the voltage across.the adjacent pairs in each cable increased to values in excess of 50 mV DC.
- This behavior was not'due 'to cross-talk between conductor pairs. If it was, the measured voltage-would have been less-i
i
-*. 1 4
l than 50.mV DC. The cause was due to a thermally induced ! voltage between two conductors of dissimilar materials. If l the conductors had been connected into a circuit, the voltage would have disappeared. This was demonstrated in the second UL test. In UL Test No. 2, two pairs from cable assemblies 1 and 2 were connected into thermocouple circuits. The variation in temperature between the signals carried by the MI cable assemblies and the reference thermccouples' connected directly j to the data acquisition system is shown in Figure 16.'No l indication of cross-talk between conductor pairs is shown. ] The differences between the signals carried by the cable assemblies and the reference signals are. felt to have been caused by complexity of the circuitry connected to the cable assemblies. Switching the thermocouple circuits in and out to I take electrical measurements may have introduced error due to transient voltage. In addition, the absolute error of the thermocouple circuits using the cable-assemblies was effected by the presence of 4 chromel/alumel to copper junctions in each circuit. A difference of many degrees in temperature between these junctions was possible and may have generated 1 the observed differences. l l The test has shown that cross-talk is not a source of signal error between conductor pairs in a cable carrying a thermocouple signal at elevated temperature. 5.1.1.2 Cables With Copper Conductors Each copper conductor in cable assemblies 4, 5, 6, 7, 8, and 9 in VL Test No. I and 3, 4, 5, and 6 in UL Test No. 2 carried a 1 ampere current throughout the test program except for brief-periods when electrical measurements were taken. The smallest conductor in these cable assemblies had a diameter of G.032 inches.
b a The test program has qualified copper conductors of 0.032 inch
" diameter for currents up to 1 ampere for service during a l 3-hour fire.
5.1.1.3 Cable Assembly 10 in UL Test No. 1 Cable assembly 10 in UL Test No. I had 10 0.015 inch diameter copper conductors. Conductor resistance measurements taken at 1 35 minutes and insulation resistance m. measurements taken with l 49.5 V DC at 37 minutes show that the cable was functioning as ! expected. However, insulation resistance measurements taken with 200 V DC at 40 minutes and conductor resistance I measurements at 44 minutes show abnormal behavior. At 55 i minutes most conductors were open. Following the hose stream l test all conductors were open and remained open throughout the post fire integrity test. All the conductors in this cable remained functional for about 38 minutes and then within a few minutes they all failed. Therefore, the reason that these j conductors failed has to apply equally to all ten conductors. j l When copper is heated to a high temperature, the grain size i increases. It is hypothesized that for the small diameter I copper conductors in cable assembly 10, the grains in each conductor grew until their size was on the order of the l diameter of the wire and that failure of the conductors occurred at grain boundaries. Such a hypothesis is consistent with all conductors failing within a short time period. Cable assembly 10 was unique in that all other cable assemblies with copper conductors had larger conductors. Cable assemblies 4, 5 and 6 in UL Test No. 1, cable assemblies 3 and 4 in VL Test No. 2, and the cable used in the ERO test ' all had 0.032 inch diameter copper conductors. None of these conductors failed. 4-
,. t-l I
.j The failure of cable assembly 10 clearly places.a lower bound on the size of copper conductors which have been qualified for use in fire protection applications by this . test program.
. Conductors smaller than 0.032 inch diameter have~not 'een b qualified.
5.1.1.4 Cable Assembly. 2 in UL Test No. 2 - The thermocouple signals carried by. cable assembly 2 in UL Test No. 2 were within a few degrees of the reference. thermocouple at 67.5 minutes'when'the cable was disconnected from the test instrumentation in order to take voltage 2 withstand measurements. During the voltage withstand test,: voltage breakdown occurred several times'before a voltage-which could be sustained was established. The supply'used to q apply the voltage.was not well regulated and a large leakage current was carried each time breakdown occurred. .When the thermocouple circuits were re-connected following the voltage. ; breakdown test, the thermocouple signals were not meaningful and conductor resistance measurements were abnormal. Following the hose stream test the conductors monitored during conductor resistance measurements were found to be open. At the end of the test program, all conductors were checked and-found to be open. Cable assembly 1 continued to function throughout the test , program. The only difference between these,two cables is that assembly 2 had a cable splice. The failure hypothesis is that the cable splice was damaged during the voltage breakdown test because of a high current surge due to test equipment problems. Since the chromel/alumel cable with splice was-functional for the first 67.5 minutes of the test, the chrome 1/alumel cable splice is limited-to a 1-hour fire rating. " (. _ - _ _ __ - _ . . _ - _ _ _ _ - -_ - _ -- --
fB 4 1 5.1.2. Conductor Resistance Exposing the cable to high temperatures caused conductor': resistance to increase. LWhen.the cables were cooled to room temperature, conductor resistance returned to essentially' pre-test values except for cable'10 in the 1-hour fire test ' and cable 2 in the 3-hour fire test. Conductor resistance measurements are summarized in Tables 4,,10 and.16. l
.It is not possible to determine the exact change in conductor resistance with-increase in temperature from the UL test data because the resistance of the-test circuitry outside the furnace was not measured. However, Reference'9, the ERD elevated temperature test report,-includes a table in-which the resistance of the hot length of.each conductor was-calculated. This data were-used to estimate the ratio of.
conductor resistance at two elevated temperatures:to the value at room temperature. Conductor resistance at 1700'F , 4. 2 ' Conductor resistance at room temperature Conductor resistance at 1925'F , 5.5 Conductor resistance at room temperature-These values are in agreement with the curve of resistance of copper as a function of temperature given in Reference 11. . The observed increase in the resistan'ce:of cable conductors with increasing temperature'was expected. The actual increases observed in the conductors at the ERD test were consistent with that given in the technical literature. L:
j 5.1.3 Insulation Resistance The insulation resistance of the cable assembliet decreased as. the temperature increased. When the cables cooled to room temperature the insulation resistance increased. In most cases it returned to. essentially pre-test values. In all cases it increased to values high enough that instrument error introduced in most applications would not be measurable. Insulation resistance values are summarized in Tables 5, 6, 11, 12, and 15. l l The insulatior. resistance' values obt;ined for the cable
. assemblies during the two UL tests were based on measurements _ -
taken approximately 5 seconds after applyir.g the voltage. As l discussed in Section 4.1.'1.3 the insulation rssistance was 1 increasing in most cases while the measurement was' taken. Therefore these measurements are lower bounds or, the actual insulation resistance of the cable. Since there 's scatter in
]
the data and each insulation resistance value is a lower bound j on the true insulation resistance, the average value of each ! set of values will be used to characterize the insulation ! t resistance of these cables. The insulation resistance velues i at 50 V DC and 200 V DC were similar. Values obtained at Loth applied voltages were included in the averaging process. In the ERD elevated temperature test, insulation resistance-measurements were taken after the meter had stabilized. Therefore, the minimum value of insulation resistance measured from conductor to conductor and conductor to sheath will be used to characterize the insulation resistance of the cable used in that test. 1 1 o. l L
A 5.1.4 Voltage Withstan'd Test o The results from the voltage withstand tests are summarized in Tables 7 and 13. In'UL Test No. 1, an alternating current voltage was applied to each cable assembly. During'the. fire test, each assembly , sustained a voltage between 250 and 300 V AC, except for. . assembly 4 which sustained 600 V.AC. Immediately.following the hose stream test and at the end of the test 600 V AC was. applied to each cable-assembly without breakdown. In VL Test No. 2, a direct current voltage was used. Cable assemblies 1, 3, 5, and 6 were able'to withstand 600 V DC without breakdown during the fire test, following the hose-stream test, and at the end of the test program. When.the l voltage was applied to assemblies.2 and 4 during the fire test and following the hose stream test, however, breakdown did occur before 600 V DC was reached. Cable assemblies 2 and 4 both had cable splices. A 200 V DC voltage was applied to each cable every time insulation resistance measurements were taken. Voltage breckdown did not occur during any of these measurements.' The test program established that unspliced cable can withstand 600 V DC during a.3-hour fire.; However the spliced cable was limited to 200 V DC. Therefore the rating of the l cable is limited to 200 V DC. l L
i
. 5.1.5 Cable Connectors Protected By An Insulation Wrap )
Cable assemblies 3, 6, and 9 in UL Fire Test No. 1 had 4 connectors which were protected from the . fire exposure by an insulation wrap. The insula' tion successfully protected the ]
- connectors. The goal was to keep the connector temperature below 325'F during the 1-hour fire test. . Even with the fire I test extended ten minutes'to finish electrica1' measurements,
- )
l the maximum temperature reached by a connector was only l 280.4'F. R A visual inspection of the connectors following the' test _ program confirmed the effectiveness of the insulation wrap.- The paint dots used for connector' alignment were unchanged in_ l color, the 0-rings were_in good. condition, and there was no discoloration of the st'ainless steel. An insulation wrap installed in accordance with C-E specifications will provide a 1-hour fire rating for the cable-connector.
~
5.1.6 Cable Temperature Outside Furnace During both UL fire tests, the temperature of a. cable assembly at its exit point from the test wall'was monitored with thermocouple. These thermocouple showed that very little heat is conducted through the fire barrier by the cable. Cable temperature increased by 4*F during the 1-hour fire test and 36*F during the 3-hour fire test. Clearly the cable does not create a fire hazard by conducting heat through a fire barrier. 5.1.7 Cable Support Method The cable assemblies were fastened to the test wall with Unistrut supports and hardware. The support span for the i ____________.____.__m_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _
r ,
) l 11 ' cable was 5 feet and both horizontal and vertical spans were ., . tested. -The support distance.for a span which. contained a factory splice was -3' feet. _ Most of the cable was held so that f it was 1.625 inches away from the test wall'. However..three' l welded Unistrut brackets were arranged on' the test wall so' that several cable spans.in each-test were~ held 9' inches'away ,
from the test wall. .These spans inclu'ded one with a cable splice. The cable. connectors wrapped with-insulation' material were supported.from welded Unistrut brackets,with stainless steel' hose clamps. Throughout both fire tests and hose'. stream tests,.the cable' / was held securely;to the test wall. Being close to the test-
~
wall or-9 inches from it did not appear to. have any effect on - the cable during the fire test or hose stream test. The test program has qualified the normal cable support hardware,-cable spans and installation procedures for a 3-hour; fire. ; l l The support hardware for the wrapped connector was qualified ~ ! for a 1-hour fire. l 5.2 CABLE ELECTRICAL PROPERTIES AT ELEVATED TEMPERATURE _ The test program demonstrated that.the electrical properties L of the cable followed the expected trends as the cable was re nee er e tri r ert srtre ; pre-fire values when the cable cooled back to room l temperature. ! The electrical properties of. the cable at 1700*F and at 1925*F
~
are summarized in Table 17. These values are provided for use in assessing system error in instrumentation circuits. n
, -7 + .
q
] $
q Conductor Resistance The conductor resistance of a circuit at elevated temperature . is determined by multiplying the conductor resistance of the.. cable 'per foot times the exposed length in feet times the
~
appropriate factor from Table 17. u Insulation Resistance ]
.l The insulation resistance of a' length of-cable exposed to a fire is determined by dividing.the insulation resista'nce of the cable given in Table '17 in units of ohm-feet by the j exposed length of cable in. feet.
Two conductor cable:
)
The values given are the minimum insulation resistance values determined in the ERD elevated. temperature test at 1700*F and at 1925*F. Three conductor cable: The insulation resistance value 'at 1700*F _is the average value of the insulation resistance values measured for each cable at - the times shown below: Time of Me'asurement ; 50-V DC 206 V DC i UL Test No. 1 Cable Assembly 5 28mjn. 31 min.~ > 7 Cable Asseinbly 6 37 min. 31 min. l t- , UL Test No. 2 Cable Assembly 4 30 min. 34 min. l L _ -. -- ----- _ _ _ _ _ _ _ _ _
1
. r The average of the insulation resistance values measured for l
each 3 conductor cable reached a minimum value prior to the i 1-hour point. The time at which the minimum value was measured is given in the table above. The insulation resistance values at these times were r"eraged to obtain the value given in Table 17. The insulation resistance value at 1925'F is the average of all the values for cable assembly 4 in VL Test No. 2. The ! values were taken at 49.8 V DC at 2 hours:50 minutes and at 200-V DC at 2 hours:52 minutes. This is the minimum average value measured during the 3-hour test. l The insulation resistance values for cable assembly 4 in UL Test No. 1 and cable assembly 3 in UL Test No. 2 were significantly higher than the values for the other 3 conductor cables tested. These values have not been considered in determining the insulation resistance of the 3 conductor cable because they are not felt to be representative of the 3 conductor cable. l The insulation resistance values for the ten conductor chromel/alumel cables and for the single conductor copper , cables are similar whether they are for plain cable assemblies or assemblies with a splice or a wrapped connector. The three conductor cable is the exception. The plain cable assembly i had significantly higher insulation values than the assemblies with a splice or a wrapped connector. The insulation resistance of the assemblies with a wrapped connector should 3 1 be the same as plain cable assemblies because the temperature I of the connector never exceeded 300'F. This was the case for l the 10 conductor chromel/alumel cables and the single j conductor cables. Therefore, the insulation resistance measurements of the three conductor plain cable assemblies , were neglected because they are not consistent with the data for the other cable assemblies. ll l l 1 l
Single conductor cable: The insulation resistance value at 1700*F is the average of the values for cable assemblies 7, 8 and 9 in UL Test No. 1 and assemblies 5 and 6 in UL Test No. 2. The values from UL
. Test No. 1 were taken at 49.5 V DC at 48 minutes into the fire test and at 200 V DC at 51 minutes-into the fire test. The values from UL Test No. 2 were taken at 49.8 V DC at 60 minutes into the fire test and at 200 V DC at I hour:3 minutes into the fire test. This is the minimum average value obtained for a 1-hour fire test.
The insulation res'istance value at 1925*F.was set equal to that at 1700*F because the average insulation resistance value, for cable assemblies 5 and 6 near the end of the 3-hour fire test, was higher than the value obtained during the first hour of the fire test. 1
.j j
The insulation resistance of cable assemblies with plain H cable, a factory splice, or a connector is not significantly ] different. Therefore, a separate insulation resistance value has not been calculated for the factory splice. The effect of the splice on insulation resistance is included in-the values given in Table 17. l l l l e, l 1
.. . a
a
._ 7 '
lq i 1 ;
6.0 REFERENCES
., I
- 1. Appendix R to 10 CFR Part 50, " Fire Protection Program 4 ForNuclearPowerFacilfties'0peratingPrior-toJanuary' h L1,-1979." l
- 2. . USNRC Standard Review Plan 9.5.1, " Fire Protection Program." ,
j j 1
- 3. AS1M E119-81, " Fire Tests'of Building Construction and :q Materials. 'l l
l
- 4. Enclosure. 6, ~" Appendix R Questions and Answers",- to' ]
USNRC Generic Letter 85-01, " Fire Protection Policy Steering Comittee Report." y
- 5. Specification No. 00000-CCE-776, Rev 02,-Qualification.
Specification for Fire ProtectiomQualification of j Mineral Insulated Cable. System, 12/9/85.- .
- 6. CE Installation Guideline No. 00000-MPS-5GL-004, Rev 00, Guidelinas For The Installation of.MineralLInsulated Electrical Cable Assemblies =For Fire Protection Applications, 12/9/85.
- 7. Underwriters Laboratories Inc., Test Procedure For Fire' ,
1 Protection Qualification of Silicon. Dioxide Insulated Cable Systems, 12/12/85. ! l
- 8. Underwriters Laboratories Inc., Report on Mineral j Insulated Cable Systems, File NC974-1, -2, Project !
85 NK31460, April'29, 1986, with the revisions dated May 14, 1986. .,
)j l
l
- 9. Electronic Resources Division, Whittaker Corporation, -i Elevated Temperature Test of Silicon Dioxide Insulated l Fire Cable, Report TR 8601, February 17,.1986.
i
[l
- -]
-)
REFERENCES- (Con't.) I
<I ,
- 10. MIL-STD-202F, April .1,1980, Method 302, Insulation Resistance.
1 1
- 11. - Metals Handbook, 8th Edition, 'Vol .1, American Society:
For Metals, Page.1204, i
.l f
\
/
g j i l 5 l i ha
- 43-b ___.__ __ __-_ _ __E__[___._______ _ _ _.___________ _.______m_-___, __ ___.__.____._________._ _ _ _ _ _ _ _ _ _ _ _ m _._ _._ . _ _ . _ -m_- . _ _ .m ._ _,___m ...E_-.. __
1 d
. TABLE-1 CABLE PARAMETERS 1
l Cable Sheath material. - stainless steel outer diameter - 0.298 inches with stainless g steel sheath ; 0.306 inches (UL Tests) or l 0.310 inches (ERD Test) with 1 composite sheath l inner diameter - 0.266 inches j Dielectric material - silicon dioxide f Conductors materials - chrome 1/alumel or nickel coated copper j diameter - 10 conductor cable - 0.015 ] inches (26AWG)
- 3 conductor cable - 0.032 inches (20AWG) ,
2 conductor cable - 0.032 inches (20AWG) )
- single conductor cable - 0.050 f'
inches (16AWG)' Splice material - welded stainless steel outer shell maximum diameter - 0.75 inches j Connector type - multi-pin material - stainless steel outer shell maximum diameter - 1.44' inches e
'l
TABLE 2 ERD PART N'IMBERS Cable Assembly Cable Seal Plate Splice Connector 16-35-00010 128437-2 128452-1 N/A N/A 16-35-00020 128437-1 128451-1 128450-1 N/A 16-35-00030 128437-1 128451-1 N/A 128446-1 ; l 16-35-00040 128437-1 128451-1 N/A 128446-2 16-35-00050 128437-3 128452-2 N/A N/A 16-35-00060 128436-2 128454-1 N/A N/A 16-35-00070 128436-1 128453-1 128449-1 N/A 16-35-00080 128436-1 128453-1 N/A 128445-1 16-35-00090 128436-1 128453-1 N/A 128445-2 l 16-35-00100 128435-2 128456-1 N/A N/A 16-35-00110 128435-1 128455-1 128448-1 N/A 16-35-00120 128435-1 128455-1 N/A 128444-1 16-35-00130 128435-1 128455-1 N/A 128444-2 ERD Test 128494-1 N/A N/A N/A l
\
l e. 45-C
i e TABLE 3 i 1
)
CROSS REFERENCE OF CABLE SERIAL NUMBERS WITH TEST AND CABLE DESCRIPTION j I (Like cables with connector pairs were joined to make one assembly)
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Cable Assembly Number Test Cable Description 1 16-35-00010-1 1-!iour UL 10 chrome 1/alumel conductors j 16-35-00010-2 3-Hour UL with stainless steel sheath j l 16-35-00020-1 1-Hour UL 10 chrome 1/alumel conductors 16-35-00020-2 3-Hour UL with splice and composite sheath 16-35-00030-1 1-Hour UL 10 chromel/alumel conductors 16-35-00040-2 1-Hour UL with connector and composite sheath , 1 16-35-00050-1 1-Hour UL 10 copper conductors. with stainless steel sheath 16-35-00060-1 1-Hour UL 3 copper. conductors 16-35-00060-2 3-Hour UL with stainless steel sheath 16-35-00070-1 3-Hour UL 3 copper conductors 16-35-00070-2 1-Hour UL with splice and composite sheath ! 16-35-00080-1 1-Hour UL 3 copper conductors 16-35-00090-1 1-Hour UL with connector and composite l sheath l l L.
1 4 1 TABLE 3'(Con't.) i Cable Assembly Number Test Cable Description 16-35-00100-1 1-Hour UL single copper conductor 16-35-00100-2 3-Hour VL- with stainless steel sheath. 16-35-00110-1 1-Hour UL single copper conductor 16-35-00110-2 3-Hour UL with splice.and composite sheath .) 16-35-00120-1 1-Hour UL single copper conductor , 16-35-00130-1 1-Hour UL. with connector and composite
' sheath 1
128494-1 ' ERD Test Two copper conductors with composite sheath 1 5 tTABLE 4
., Conductor. Resistance Measurements' UL Test No. 1 Conductor. Resistance l(ohms)-
Cable End'of Following Hose. End'of Number Conductor Pre-Test Fire Test , Stream Test Test (55 Min)_ (IHr:37 Min) 1 A 74.8 89.7 75.2 75.0 B 29.4 53.5 130.3- '29.7 C 75.6' 91.0 76.1 75.9 D 29.3 29.7 E(ground) 0.5 10 . 4 F 29.5 29.8 G 75.4 75.7 H 29.5 29.9 J 75.7 76.0 K 29.7 30.0 L 76.0 77.0 2 A 83.9 100.6 84.2- 84.0 B 32.5 60.0 33.6. ~32.9' i C 83.5 100.2 '83.9 L83.7 0 32.3 32.7 E(ground) 0.5 0.4 F 32.3 32.8 G 83.3 83.4 H 32.5 32.9 J 83.2 83.3 K 32.2 32.7 L 83.4 83.7 3 A 62.2 74.7 62.9 62.5 B 24.3 44.4 25.8. 24.5 C 62.9 75.7 63.7 - 63.1 0 24.5 24.8 E(ground) 0.4 0.4 F 24.4 24.7 ' G 62.7 62.9' H 24.4 24.6 J 62.1 62.4-
-K 24.3 24.6 L 62.4 62.9 4 A 1.2 3.0 1.1 1.2 B 1.2 3.0 1.4 1.2 C 1.2 3.0 1.3 1.2 E(ground) 0.4 0.4 l-
r. TABLE 4 (Con't.) Conductor Resistance (ohms) Cable End of Following Hose End of Number Conductor Pre-Test F'~e Test Stream Test Test (55 Min) (1Hr:37 Min) l 5 A 1.0 2.9 1.1 1.0 B 1.0 2.8 1.0 1.0 C 1.0 2.9 1.1 1.0 E(ground) 0.4 0.4 6 A 1.1 2.4 1.1 1.1 B 1.0 2.6 1.0 1.0 C 1.1 2.3 1.0 1.1 E(ground) 0.4 0.4 7 A 0.6 1.3 0.7 0.6 E(ground) 0.4 0.4 8 A 0.6 1.1 0.0 0.6 E(ground) 0.4 0.4 9 A 0.6 1.2 0.7 0.6 E(ground) 0.4 0.4 ; i' 10 A 3.7 OPEN OPEN OPEN B 3.8 OPEN OPEN OPEN i l C 3.8 OPEN OPEN OPEN .! D 3.7 OPEN OPEN OPEN 1 E(ground) 0.4
- 0.3 i F 3.9 OPEN OPEN OPEN
! G 3.8 13.0 OPEN OPEN H 3.8 3.0 OPEN OPEN K 5 N E L 3.8 OPEN OPEN OPEN ! l t l l
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_ _ _ - _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ - _ __-b
TABLE 5 Insulation Resistance Before and After UL Test No. l' (applied voltage'= 200'V DC) Insulation Resistance (ohms). f Cable No. Cable Conductor Pre-Test Post Test 'I I 1 A to E (Sheath) 8.0 x 10 13 2.9 x 10 11 8 to E 1.0 x 10 14 '2.4 x 10 11' C to E. 1.0 x 10 14 3.2 x 10 11 D to 'E 1.0 x 10 14 2;3 x 10 11 1 F to E 1.0 x 10 14' 2.6 x 10 11
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G to E 2.0 x 10 14- 2.4 x 10 11 H to E 1.0'x 10 14' 2.9 x 10 11 J to E 6.0 x 10 13 2.8 x 10 11 K to E 5.0 x 10 14 2.8 x 10 11 L to E 5.0-x 10 14 2.9 x 10 11 l
, 12 A to B 1.6 x 10 12 ' 1.0.x 10 B to C 1.7 x 10 12 1.0 x 10 12 C to D 1.7 x 10 12 -.1.3 x 10 12 0 to F 1.5 x 10 12 9.3 x 10 11 F to G 3.5 x 10 12 ~9.4 x 10 11 G to H 1.3 x 10 12 1.0 x 10 12 H to J 2.2 x 10 12 1.1 x 10 12 J to K 2.1 x 10 12 1.2 x 10 12 K to L 1.2 x 10 12 1.2 x 10 12 L to A 2.7 x 10 12 1.4 x 10 12 :
s
TABLE 5 (Continued) Insulation Resistance Before and After UL Test'No. 1 (applied voltage;= 200 V 0C)
'l Insulation Resistance (ohms)'
Cable No. Cable Conductor Pre-Test ' Post Test 2 A to E (Sheath) 1.5 x 10 14 2.2'x.10 11 B to E 2.0 x 10 14 2.8 x 10 11 l C to E 1.0 x 10 14 2.3 x 10 11 D to E 1.0 x 10 14 3.1 x 10 11 F to E 1.5'x 10 14 2.9.x 10 11.
'G to E '2.0 x 10 14 3.0 x 10 11 i H to E 1.0 x 10 14 2.6 x 10 11 J to E 9.0 x 10 13 2.7 x 10 11 K to E 2.0 x 10 14 3.1 x 10 11 L to E '1.0 x 10 14 2.8 x 10 11 A to B 1.8 x 10 12 1.5 x 10 12 B to C 1.2 x 10 12 1.3 x 1012 ,
C to 0 1.5 x 10 12 1.8 x 10 12 D to F 6.6 x 10 11 1.2 x 10 12 F to G 1.2 x 10 12 9.4 x 10 11 G to H 1.4 x 10 12- 1.9 x 10 12 H to J 1.1 x 10 12 1.3 x 10 12 J to K 1.6 x 10 12 9.1 x 10 11 K to L 9.0 x 10 11 1.4 x 10 12 L to A 1.9 x 10 12 6.4 x 10 12 _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - . _ _ _ _ _ _ _ . . _ _ _ . _ _ _ _ _ _. _.__ ____.___________________.-___a
TABLE 5 (Continued) Insulation Resistance Before and After UL Test No. 1
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(applied voltage = 200 V OC) Insulation Resistance (ohms) Cable No. Cable Conductor Pre-Tdst Post Test 3 A to E (Sheath) 2.0 x 10 2.6 x 10 11 B to E 1.5 x 10 14 2.6 x 10 11 C to E 7.0 x 10 13 2.1 x 10 11 D to E 1.5 x 10 14 2.7 x 10 11 F to k' 8.0 x 10 13 2.9 x 10 11 G to E 9.0 x 10 13 3.0 x 10 11 H to E 7.0 x 10 13 3.0 x 10 11 J to E 8.0 x 10 13 2.9 x 10 11 K to E 6.0 x 10 13 3.4 x 10 11 L to E 1.0 x 10 14 2.9 x 10 11 i A to B 2.2 x 10 12 1.0 x 10 12 B to C 1.9 x 10 12 1.0 x 10 12 C to D 1.9 x 10 12 1.2 x 10 12 0 to F 2.5 x 10 12 2.1 x 10 12 F to G 2.5 x 10 12 7.7 x 10 11 G to H 2.1 x 10 12 1.7 x 10 12 H to J 2.1 x 10 12 1.4 x 10 12 J to X 2.3 x 10 12 2.6 x 10 12 K to L 3.2 x 10 12 1.9 10 12 L to A 2.8 x 10 12 2.1 x 10 2
f ,, , TABLE 5-(Continued) s Insulation Resistancee Before and After VL Test No. 1 (applied voltage =. 200 'V DC) l Insulation Resistance (ohms) gbleNo. Cable Conductor' Pre-Test Post Test 4 A to E (Sheath): 2.0 x 10 14 2.'4 x 1011
.B to E 2.5 x-10 14 '4.1 x 10 11 C to E 1.0 x'10 14 2.8 x.10 11 A to B 9.0 x-10 12 2.0 x 10 14 12- 13 8 to C 2.1 x '10 3.0 x 10 C to A 5.6 x 10 12 2.0 x 10 14 5 A to E (Sheath) 1.0 x 10 14 1.1-x 10 11 2.0 x 10 14
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B to E 1.2 x 10 11 C to E 1.5 x 10 14 1.2 x 10 11 A to B 1.5 x 10 13 1.3 x 10 7 B to C 2.9 x 10 12 7.2 x 10 6 l C to A 2.5 x 10 12 8.4 x 10 6 6 A to E (Sheath) 2.0 x 10 14 2.1 x 10 11 B to E 7.0 x 10 13 2.3 x 10 11 l- C to E 2.0 x 10 14 3.0 x 10 11 l A to B 3.3 x 10 12 2.8 x 10 12 B to C 3.1 x 10 12 4.2 x 10 12 C to A 3.2 x 10 12 1.5 x 10 12 l a. l l
o TABLE 5 (Continued)
, j Insulation Resistance Before and After UL Test No.1 (applied voltage = 200 V DC) l Insulation Resistance (ohms)
Cable No. Cable Conductor Pre-Test Post Test 7 A to E (Sheath) 1.0 x 10 14 2.3 x 10 11 I 8 A to E (Sheath) 2.0 x 10 14 1.1 x 10 12 , 4 9 A to E (Sheath) 1.0 x 10 14 1.1 x 10 11 ; i 14 10 A to E (Sheath) 2.0 x 10 1.1 x 10 11 j B to E 2.0 x 10 14 3.5 x 10 11 l C to E 2.0 x 10 14 3.8 x 10 11 0 to E 2.0 x 10 14 4.5 x 10 11 F to E 2.0 x 10 14 1.9 x 10 11 14 G to E 2.0 x 10 3.4 x 10 11 H to E 2.0 x 10 14 2.0 x 10 11 l J to E 1.5 x 10 34 1.3 x 10 11 ) K to E 2.0 x 10 14 2.1 x 10 11 l L to E 2.0 x 10 14 2.2 x 10 11 i A to B 2.1 x 10 12 5.2 x 10 11 l B to C 2.2 x 10 12 2.2 x 10 12 j C to D 3.8 x 10 12 '7.5 x 10 12 l 2.8 x 10 12 11 ' 0 to F 7.5 x 10 F to G 2.1 x 10 12 ' 6.3 x 10 11 G to H 1.9 x 10 12 6.0 x 10 11 i H to J 6.0 x 10 11 1.9 x 10 11 J to K 7.3 x 10 11 2.6 x 10 11 12 K to L 1.8 x 10 4.3 x 10 11 L to A 2.0 x 10 12 7.8 x 10 11 !
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I
a i a l TABLE 6 INSULATION RESISTANCE DURING UL TEST NO. 1 (applied voltage = 49.5 V DC) INSULATION RESISTANCE (chms-feet) TIME TIME TEMP LENGTH CABLE COND. TO COND. .COND. TO SHEATH (period) (hr: min) (deg F) (feet) NUMBER MIN AVG MAX MIN AVG MAX 1 13 1288 30.4 1 5.2e06 7.2e06 8.6e06 3.3e06 4.0e06 4.5e06 ! 1 13 1288 3:2.5 2 1.2e07 1.8e07 2.4e07 1.2e07 1.7e07 2.4e07
'l 13 1288 25.8 3 1.le07 1.2e07 1.3e07 7.3e06 8.5e06 1.0e07
- 1. 13 1288 30.5 4 1.3e08 1.7e08 2.3e08 1.3e07 8.8e07 1.3e08- .
1 13 1288 26.5 5 6.8e06 9.9e06 1.4e07 5.2e06.7.3e06 1.le07 l 1 13 1288 25.9 6 7.4e06 7.8e06 8.2e06 4.6e06 5.0e06 5.5e06 1 13 1288 28.4 7 4.2e06 4.2e06'4.2e06 1 13 1288 25.9 8 3.8e06 3.8e06 3.8e06 1 13 1288 26.2 9 2.6e06 2.6e06 2.6e06 1 13 1288 31.3 10 1.3e07 1.6e07 1.9e07 3.0e06 9.7e06 1.4e07 2 28 1531 30.4 l' 1.8e06 5.5e06 9.3e06 9.5e05 3.7e06 8.6e06 l 2 28 1531 32.5 2 8.0e06 1.4e07 2.le07 2.5e06 6.8e06 1.4e07 2 28 1531 25.8 3 6.le06 7.6e06 9.le06 2.6e06 4.6e06 7.6e06 2 28 1531 30.5 4 5.6e07 9.6e07 1.5e08 4.0e06 6.9e07 1.5e08 2 28 1531 26.5 5 2.le06 4.5e06 8.3e06 1.8e06 3.2e06 5.7e06 2 28 1531 25.9 6 2.8e06 3.5e06 4.3e06 1.5e06 2.2e06 3.le06 2 28 1531 28.4 7 1.6e06 1.6e06 1.6e06 2 28 1531 25.9 8 '1.2e06 1.2e06 1.2e06 2 28 1531 26.2 9 6.0e05 6.0e05 6.0e05 2 28 1531 31.3 10 1.2e07 1.6e07 1.8e07 4.le06 1.0e07 1.4e07 l 3 37 1564 30.4 1 3.6e06 7.8e06 1.4e07 9.5e05 4.2e06 1.0eO7 3 37 1564 32.5 2 7.0e06 1.9e07 2.8e07 2.0e06 8.'5e06 2.le07 3 37 1564 25.8 3 7.6e06'1.0e07 1.3e07 1.9e06 5.le06 9.5e06 3 37 1564 30.5 4 6.4e07 8.9e07 1.3e08 2.6e06 5,3e07 1.le08 3 37 1564 26.5 5 1.9e06 5.2e06 1.0e07 1.3e06 2.9e06 5.9e06 3 37 1564 25.9 6 2.2e06 3.2e06 4.6e06 1.le06 1.9e06 2.6e06 3 37 1564 28.4 7 1.le06 1.le06 1.le06 3 37 1564 25.9 8 8.8e05 8.8e05 8.8e05 3 37 1564 26.2 9 5.4e05 5.4e05 5.4e05 3 37 1564 31.3 10 1.6e07 2.le07 2.4e07 3.9e06 1.3e07 2.0e07 , 4 48 1651 30.4 3.6e06 7.8e06 1.4e07 1 9.5e05 4.le06 9.9e06 4 48 1651 32.5 2 6.le06 3.6e07 5.3e07 1.5e06 1.6e07 4.3e07 4 48 1651 25.8 3 1.3e07 1.9e07 2.6e07 1.4e06 8.0e06 1.6e07 4 48 1651 30.5 4 1.2e08 1.5e08 2.le08 1.9e06 8.7e07 1.5e08 4 48 1651 26.5 5 2.9e06 6.7e06 1.le07 1.5e06 4.2e06 8.9e06 4 48 1651 25.9 6 2.2e06 4.6e06 9.2e06 F 8.0e05 2.le06 4.0e06 4 48 1651 28.4 7 6.6e05 6.6e05 6.6e05 4 48 1651 25.9 8 7.4e05 7.4e05 7.4e05 4 48 1651 26.2 9 4.0e05 4.0e05 4.0e05 4 48 1651 31.3 10 5.9e08 6.9e08 8.8e08 6.le07 4.le08 7.4e08 1 I TABLE 6 (Continued) ;
., 1 INSULATION RESISTANCE DURING UL TEST NO. 1 (applied voltage = 49.5 V DC)
INSULATION RESISTANCE (ohns-feet) TIME TIME TEMP LENGTH CABLE COND. TO COND. COND. TO SHEATH (period) (hr: min) (deg F) (feet) NUMBER MIN AVG MAX MIM AVG MAX 5 1:28 30.4 1 1.2 ell 1.7 ell 2.lell 7.0e10 7.6e10 8.6e10 5 1:28 32.5 2 8.0e10 1.5 ell 2.2 ell 7.2e10 7.8e10 8.7e10 q 5 1:28 25.8 3 2.3e10 5.2e10 8.0e10 6.2e10 6.4e10 6.9e10 l 5 1:28 30.5 4 3.le10 8.3e10 1.3 ell 6.7e10 7.2e10 8.2e10 5 1:28 26.5 5 2.0e08 2.7e08 3.8e08 7.le10 3.0 ell 4.lell 5 1:28 25.9 6 1.4e10 4.7e10 6.7e10 5.9e10 6.4e10 7.3e10 l 5 1:28 28.4 7 6.5e10 6.5e10 6.5e10 1 I 5 1:28 25.9 8 5.9e10 5.9e10 5.9e10 5 1:28 26.2 9 5.6e10 5.6e10 5.6e10 5 1:28 31.3 10 1.7e10 3.9 ell 9.7 ell 6.7e10 7.3e10 8.4e10 6 3:35 30.4 1 5.7e10 1.3 ell 1.9 ell 7.0e10 7.6e10 8.6e10 6 3:35 32.5- 2 1.9 ell 5.9 ell 1.3e12 7.6e10 8.le10 8.9e10 6 3:35 25.8 3 1.2 ell 2.0 ell 3.2 ell 6.0e10 6.5e10 7.3e10 6 3:35 30.5 4 5.7e10 3.0 ell 6.7 ell 7.0e10 7.7e10 8.7e10 l 6 3:35 26.5 5 2.0e08 2.7e08 3.8e08 6.0e10 6.7e10'7.7e10 l 6 3:35 25.9 6 5.le10 2.lell 4.3 ell 6.0e10 6.4e10 7.0e10 6 3:35 28.4 7 6.7e10 6.7e10 6.7e10 6 3:35 25.9 8 6.4e10 6.4e10 6.4e10 l 6 3:35 26.2 9 6 le10 6.le10 6 le10 l 6 3:35 31.3 10 1.le12 2.5e12 3.9e12 6.Se10 7.5e10 8.4e10 l 7 25:30 30.4 1 1.6 ell 1.8 ell 2.lell 7.le10 7.6e10 8.6e10 7 25:30 32.5 2 2.2 ell 3.le11 4.8 ell 7.7e10 8.3e10 9.le10 7 25:30 25.8 3 2.4 ell 1.0e12 2.7e12 6.le10 6.6e10 7.2e10 7 23:30 30.5 4 1.6 ell 2.4 ell 3.6 ell 7.le10 7.7e10 8.6e10 7 25:30 26.5 5 2.le08 2.8e08 3.8e08 6.le10 6.6e10 7.4e10 7 25:30 25.9 6 1.4 ell 3.lell 5.3 ell 6.0e10 6.5e10 7.3e10 7 25:30 28.4 7 7,0e10 7.0e10 7.0e10 7 25:30 25.9 8 6.le10 6.le10 6.le10 7 25:30 26.2 9 6.4e10 6.4e10 6.4e10 7 25:30 31.3 10 1.0e12 6.8e12 9.7e12 7.0e10 7.6e10 8.6e10 8 42:39 30.4 1 6.8e10 6.9e10 7.0e10 6.2e10 7.2e10 9.0e10 8 42:39 32.5 2 7.3e10 7.4e10 7.4e10 6.5e10 7.6e10 9.4e10 8 42:39 25.8 3 5.7e10 5.8e10 5.8e10 5.3e10 6.le10 7.6e10 8 42:39 30.5 4 6.9e10 6.9e10 7.0e10 6.le10 7.2e10 9.0e10 8 42:39 26.5 5 2.4e08 9.5e09 1.8e10 5.4e10 6.3e10 7.8e10 8 42:39 25.9 6 5.5e10 5.6e10 5.8e10 5.4e10 6 le10 7.4e10-8 42:39 28.4 7 6.0e10 6.0e10 6.0e10 8 42:39 25.9 8 5.7e10 5.7e10 5.7e10 8 42:39 26.2 9 5.6e10 5.6e10 5.6e10 8 42:39 31.3 10 6.le10 6.4e10 6.7e10 6.0e10 7.2e10 9.2e10 TABLE 6 (Continued) INSULATION RESISTANCE DURING UL TEST NO. 1 (applied voltage = 49.5 V DC) l INSULATION RESISTANCE (ohms-feet) TIME TIME TEMP LENGTH CABLE ,COND; TO COND. COND. TO SHEATH (period) (hr: min) (deg F) (feet) NUMBER MIN AVG MAX MIN AVG MAX ' 9 47:45 30.4 1 6.7e10 6.8e10 6.8e10 6.0e10 7.le10 9.0e10 j 47:45 32.5 7.le10 7.2e10 7.4e10 6.2e10 7.5e10 9.6e10 l 9 2 9 47:45 25.8 3 5.6e10 5.7e10 5.8e10 5.le10 6.0e10 7.6e10 9 47:45 30.5 4 6.6e10 6.8e10 7.0e10 6.0e10 7.le10 8.8e10 , 9 47:45 26.5 5 2.le08 4.0e09 1.le10 5.3e10 6.le10 7.4e10 l 9 47:45 25.9 6 5.5e10 5.6e10 5.6e10 5.2e10 6.0e10 7.3e10 l l 9 47:45 28.4 7 5.9e10 5.9e10 5.9e10 I 9 47:45 25.9 8 5.6e10 5.6e10 5.6e10 I 47:45 9 26.2 9 5.6e10 5.6e10 5.6e10 9 47:45 31.3 10 6.le10 6.3e10 6.7e10 5.8e10 7.0e10 9.0e10 10 90:55 30.4 1 6.7e10 6.8e10 6.8e10 6.0e10 7.le10 9.0e10 10 90:55 32.5 2 7.le10 7.2e10 7.3e10 6.5e10 'i.5e10 9.4e10 10 90:55 25.8 3 5.6e10 5.6e10 5.7e10 5.le10 6.0e10 7.6e10 10 90:55 30.5 4 6.7e10 6.8e10 6.9e10 6.0e10 7.le10 9.0e10 10 90:55 26.5 5 1.0e10 1.3e10 1.8e10 5.2e10 6.0e10 7.4e10 10 90:55 25.9 6 5.5e10 5.6e10 5.7e10 5.2e10 6.0e10 7.4e10 10 90:55 28.4 7 5.9e10 5.9e10 5.9e10 10 90:55 25.9 8 5.6e10 5.6e10 5.6e10 10 90:55 26.2 9 5.5e10 5.5e10 5.Se10 10 90:55 31.3 10 6.2e10 6.3e10 6.6e10 5.7e10 7.0e10 9.0e10 { o. 1 l l
TABLE 6 (Continued) INSULATION RESISTANCE DURING UL TEST NO. 1 (applied voltage = 200 V DC) INSULATION RESISTANCE (ohms-feet) < TIME TIME TEMP LENGTH CABLE COND. TO COND. COND. TO' SHEATH (period) (hr: min) (deg F) (feet) NUMBER. MIN AVG MAX MIN AVG. MAX 1 17 1388 30.4 1 3.7e06 4.le06 5.0e06 2.le06 2.9e06 4.0e06 1 17 1388 32.5 2 8.6e06 1.3e07 1.7e07~ 6.8c06 8.9e06 1.le07 1 17 1388 25.8 3 6.0e06 6.9e06 7.7e06 4.3e06 4.9e06 5.9e06 , 1 17 1388 30.5 4 2.4e08 3.0e08 3.3e08 7.5e06 2.3e08 3.7e08 1 17 1383 26.5 5 3.4e06 6.le06.9.2e06 3.0e06 4.7e06 7.8e06 1 17 1388 25.9 6 4.6e06 4.8e06 5.0e06 3.0e06 3.le06 3.2e06 1 17 1388 28.4 7 2.5e06 2.5e06 2.5e06 1 17 1388 25.9 8 2.5e06 2.5e06 2.5e06 1 17 1388 26.2 9 1.7e06 1.7e06-1.7e06-1 17 1388 31.3 10 1.le07 1.3e07 1.4e07 5.0e06 7.9e06 1.2e07 i 2 31 1550 30.4 1 2.4e06 5.4e06 9.5e06' 1.le06 3.lc06 7.0e06 2 31 1550 32.5 2 8.4e06 1.4e07 2.0e07 3.2e06 5.9e06 1.le07. l 2 31 1550 25.8 3 7.3e06 8.2e06 9.8e06 2.2e06 4.5n06 7.le06 2 31 1550 .30.5 4 8.5e07 1.6e08 2.le08 3.5e06 1.le08 1.7e08 2 31 1550 26.5 5 1.5e06 4.0e06 8.6e06 1.6e06 2.4e06 3.7e06 2 31 1550 25.9 6 3.0e06 3.4e06 4.2e06 1.Se06 2.2e06 2.6e06 2 31 1550 28.4 7 1.5e06 1.5e06 1.5e06 , 2 31 1550 25.9 8 1.5e06 1.5e06 1.5e06 i 2 31 1550 26.2 9 9.6e05 9.6e05 9.6e05 2 31 1550 31.3 10 1.2e07 2.3e07 3.2e07 4.0e06 1.4e07 2.le07 , 3 40 1595 30.4 1 4.7e06 7.7e06 1.3e07 9.2e05 4.4e06 1.le07 1 3 40 1595 32.5 2 8.0e06 2.2e07 3.le07 2.5e06 8.8e06 2.le07 3 40 1595 25.8 3 1.0e07 1.3e07 1.7e07 1.6e06 6.0e06 1.le07 3 40 1595 30.5 4 1.5e08 2.le08 2.8e08 2.8e06 1.3e08 2.4e08 3 40 1595 26.5 5 2.0e06 5.2e06 1.le07 1.4e06 4.2e06 9.9e06 3 40 1595 25.9 6 2.le06 3.4e06 5.7e06 1.3e06 2.5e06 4.6e06 3 40 1595 28.4 7 1.0e06 1.0e06 1.0e06 3 40 1595 25.9 8 1.le06 1.le06 1.le06 3 40 1595 26.2 9 7.0e05 7.0e05 7.0e05 3 40 1595 31.3 10 4.le07 2.6e08 6.7e08 4.9e06 1.8e08 5.0e08 4 51 1655 30.4 1 4.2e06 8.4e06 1.5e07 7.0e05 3.8e06 9.5e06 ' 4 51 1655 32.5 2 2.le06 3 le07 8.4e07 1.3e06 1.8e07 5.le07 4 51 1655 25.8 3 1.7e07 3.0e07 3.7e07 9.6e06 2.4e07. 3.7e07 4 51 1655 30.5 4 2.6e08 2.8e08 3.le08 1.8e06 1.6e08 2.9e08 4 51 1655 26.5 5 2.9e06 6.2e06 1.0e07 1.7e06 2.9e06 5.2e06 4 51 1655 25.9 6 1.2e06 5.3e06 1.2e07 9.3e05 1.8e06 3.4e06 4 51 1655 28.4 7 6.7e05 6.7e05 6.7e05 4 51 1635 25.9 8 8.3e05 8.3e05 8.3e05 4 51 1655 26.2 9 5.3e05 5.3e05'5.3e05 4 51 1655 31.3 10 5.2e08 6.9e08 9.9e08 3.5e07 3.8e08 7.4e08 i TABLE 6 (Continued) INSULATION RESISTANCE DURING UL' TEST NO. 1 (applied voltage e 200 V DC). INSULATION RESISTANCE (ohms-feet) TIME TIME TEMP LENGTH CABLE COND. TO COND. COND. TO SHEATH (period) (hr: min) (deg F) (feet) NUMBER MIN AVG MAX MIN AVG MAX l i 5 1:32 30.4 1 2.7 ell 1;5e12 3.8e12 2.6 ell 3.0 ell 3.5 ell ; 5 1:32 32.5 2 1.6 ell 5.0 ell 1.2e12 2.5 ell 2.8 ell 3.lell 5 1:32 25.8 3 8.0e09 2.9e10 4.8e10 3.2e10 1.6 ell 2.6 ell l 5 1:32 30.5 4 1.le10 1.4 ell 2. Sell 2.2 ell 2.6 ell 3.0 ell 5 1:32 26.5 5 2.0e08 2.5e08 3.2e08 3.0e09.3.2e09 3.3e09 5 1:32 25.9 6 8.le09 3.2e10 6.6e10 2.2e10 8.le10 2.0 ell 5 1:32 28.4 7 ,2.4 ell'2.4 ell 2.4 ell ' 5 1:32 25.9 8 2.lell 2.lell 2.lell' 5 1:32 26.2 9 1.8 ell 1~.8 ell 1.8 ell 5 1:32 31.3 10 2.0e10 1.4 ell 2.8 ell 2.4 ell 2.7 ell 3.0 ell 6 3:45 30.4 1 1.2 ell 2.2 ell 3.0 ell 2.8 ell'3 lell 3.5 ell 6 3:45 32.5 2 3.4 ell 3.9 ell 4.2 ell 3.0 ell 3.2 ell 3.5 ell. 6 3:45 25.8 3 1.8 ell 2.le11.2.8e11 2.3 ell 2.6 ell 3.0 ell 6 3:45 30.5 4 2.2 ell 3.lell 4.0 ell. 2.7 ell 3.0 ell 3.5 ell 6 3:45 26.5 5 2.le08 2.6e08 3.4e08 2.4 ell 2.6 ell 2.9 ell 6 3:45 25.9 6 1.8 ell 2.0 ell 2.lell 2.2 ell 2.5 ell 2.8 ell 6 3:45 28.4 7 2.8 ell 2.8 ell 2.8 ell 6 3:45 25.9 8 2.5 ell 2.5 ell 2.5 ell 6 3:45 26.2 9 <2.5 ell 2. Sell 2.5 ell 6 3:45 31.3 10 2.6 ell 3.7 ell 5.0 ell 2.6 ell 3.0 ell 3.3 ell 7 25:40 30.4 1 2. Sell 3.5 ell 4.6 ell 2.8 ell 3.lell 3.5 ell ; 7 25:40 32.5 2 4.5 ell 4.7 ell 5.lell 3.0 ell 3.3 ell 3.7 ell l 7 25:40 25.8 3 3.3 ell 3.5 ell 3.8 ell 2.5 ell 2.7 ell 2.9 ell ' 7 25:40 30.5 4 3.9 ell 4.4 ell 5.lell 2.9 ell 3.lell 3.5 ell 7 25:40 26.5 5 2.le08 2.7e08 3.5e08 -2.4 ell 2.7 ell 3.0 ell 7 25:40 25.9 6 3.5 ell 4.0 ell 4.6 ell 2.4 ell 2.7 ell 3.lell 7 25:40 28.4 7 2.8e11 2.8 ell 2.8 ell .[ 7 25:40 25.9 8 2.6 ell 2.6 ell 2.6 ell ' 7 25:40 26.2 9 .2.6 ell 2.6 ell 2.6 ell 7 23:40 31.3 10 5.0 ell 5.4 ell 5.8 ell 2.8e11 3.lell 3.6 ell 8 42:33 30.4 1 2.8 ell 2.8 ell 2.8 ell 2.5 ell 2.9 ell 3.6 ell 8 42:33 32.5 2 2.9 ell 3.0 ell 3.lell 2.6 ell 3.lell 3.9 ell ! 8 42:33 25.8 3 2.3 ell 2.4 ell 2.4 ell 2.lell 2.5 ell 3.lell 8 42:33 f 30.5 4 2.8 ell 2.8 ell 2.8 ell 2.5 ell 2.9 ell 3.5 ell 8 42:33 26.5 5 2.2e08 2.7e08 3.5e08 '2.2 ell 2.5 ell 3.lell 8 42:33 25.9 6 2.3 ell 2.4 ell 2.4 ell 2.2 ell 2.5 ell 3.0e11 8 42:33 28.4 7 2.5 ell 2.5 ell 2.5 ell-8 42:33 25.9 8 2.4 ell 2.4 ell 2.4 ell 8 42:33 42:33 26.2 9 2.3 ell 2.3 ell 2.3 ell j 8 31.3 10 2.6 ell 2.6 ell 2.7 ell 2.4 ell 2.9 ell 3.7 ell 1 I o. 1 l t
q d
.l TABLE 6 (Continued) J INSULATION RESISTANCE DURING UL TEST NO. 1 i
(applied voltage = 200 V DC) ] INSULATION RESISTANCE (ohms-feet) TIME TIME TEMP LENGTH CABLE COND. TO COND. COND. TO SHEAT!! l (period) (hr: min) (deg F) (feet) NUMBER MIN AVG MAX MIN . AVG MAX j 9 47:55 30.4 1 2.7 ell 2.7 ell 2.8 ell 2.5 ell 2.9 ell 3.6 ell
'9 47:55 32.5 2 2.9 ell 2.9 ell 3.0 ell 2.6 ell 3.lell 3.8 ell a 9 47:55 25.8 3 2.2 ell 2.3 ell 2.3 ell 2.0 ell 2.4 ell 2.9 ell -{
9 47:55 :30.5 4 2.7 ell 2.8 ell 2.8 ell 2.5 ell 2.9 ell 3.6 ell l 9 47:55 26.5 5 2.le08 2.7e08 3.5e08 2.lell 2.5 ell 3.lell l 9 47:55 25.9 6 2.2 ell 2.3 ell 2.3 ell 2.lell 2.4 ell 2.9 ell 9 47:55 28.4 7 2.4 ell 2.4 ell 2.4 ell , 9 47:55 25.9 8 2.3 ell 2.3 ell'2.3 ell i 9- 47:55 26.2 9 2.2 ell 2.2 ell 2.2 ell 9 47:55- 31.3 10 2.5 ell 2.6 ell 2.7 ell 2.3 ell 2.8 ell 3.5 ell 10 90:47 30.4 1 2.8 ell 2.8 ell 2.8 ell 2.5 ell 2.9 ell 3.6 ell 10 90:47 32.5 2 2.9 ell 2.9e11 3.0 ell 2.7 ell 3.lell 3.8 ell 10 90:47 25.8 3 2.3 ell 2.3 ell 2.4 ell 2.lell 2.5 ell 3.lell 10 90:47 30.5 4 2.7 ell 2.8 ell 2.8e11 2.5e-11 2.9 ell 3.5 ell 10 90:47 26.5 5 2.le08 2.7e08 3.5e08 2.lell 2.5 ell 3.lell ; 10 90:47 25.9 6 2.3 ell 2.3 ell 2.3 ell 2.2 ell 2.5 ell 3.0 ell 10 90:47 28.4 7 2.5 ell 2.5 ell 2.5 ell 10 90:47 25.9- 8 2.3 ell 2.3e11~2.3 ell , 10 90:47 26.2 9 2.2 ell 2.2 ell 2.2 ell l 10 90:47 31.3 10 2.5 ell 2.'6 ell 2.7 ell 2.4 ell 2.9 ell 3.6 ell { l J I
TABLE 7 j
, Voltage Withstand Test UL Test No. 1 I Cable Assembly No. Time of Measurement Applied Voltage Leakage ,
(VAC) Current (mA) ! l 1 During Fire Test 250-300 10 l 2 During Fire Test 250-300 10 j 3 During Fire Test ' 250-300 10 4 During Fire Test 600 10 1 5 During Fire Test 250-300 10 l 6 During Fire Test 250-300 10 ; 7 During Fire Test 250-300 10 8 During Fire Test 300 7.5 , 9 During Fire Test 250-300 10 ( 10 During Fire Test - - 1 Following Hose Stream Test 600 0.9 Following Hose Stream Test l 2 600 0.9 y 3 Following Hose Stream Test 600 0.8 + 4 Following Hose Stream Test 600 0.5 , 5 Following Hose Stream Test 600 0.5 l 6 Following Hose Stream Test 600 0.5 l 7 Following Hose Stream Test 600 0.3 ' 8 Following Hose Stream Test 600 0.3 i 9 Following Hose Stream Test 600 0.3 ! 10 Following Hose Stream Test 600 0.3 j 1 Post Test 600 0.83 I 2 Post Test 600 0.83 l 3 Post Test 600 1.66 l 4 Post Test 600 0.73 1 5 Post Test 600 0.49 , 6 Post Test 600 0.39 I 7 Post Test 600 0.28 , 8 Post Test 600 0.25 . 9 Post Test 600 0.27 ! 10 Post Test 600 0.58 l i l l o. i
r TABLE 8.
, Temperature of Connector Inside Insulation Wrap..
g UL Test'No. 1 i Temperature (*F) Time Cable Assembly Cable Assembly Cable Assembly' Average (Min) 3 6 .9 Furnace-0 68.8 69.3 67.1. 72.6' , 10 68.8 71.0 67.5- 1204.5 i 20 110.1 203.6 105.9 1435.3 1 10 205.6 209.5 209.5 1537.0 40 211.0 212.4 209.9 ' 1594.8 50 211.6 212.9 210.6 1653.0' 60 211.6 228.3 223.5 .1685.1 0 243.7 256.7' 280.4 1678.5-l l l o i . L < TABLE 9 Cable Temperature Outside Furnace UL Test No.1 Temperature (*F). Time T.C. 4 T.C. 5' T.C. 6 ' Average (Min)- Furnace 0 63.1 63.3 63.3 ' 72.6 . 10 62.3 62.6 62.4. 1204.5: l 20 62.9 63.2 63.1 1435.3 30 63.2 63.6 63.5' 1537.0 l 40 63.7 64.1 63.8 1594.8 50 64.7 65.0 64.3 1653.0 60- 65.9 65.7 64.5 1685.1 ' = 70 67.4 66.6 64.5 1678.5 1 NOTE: Thermocouple were mounted on cable assembly 5. T.C. 4 Mounted on cable at its exit point from test wall. T.C. 5 Mounted 1 inch from wall. T.C. 6 Mounted 3 inches from wall. l l 1
\
1 he 1 i s
l l TABLE 10
., Conductor Resistance Measurements j UL Test No. 2 j Conductor Resistance (ohms) l Following I Hose End of ,
Cable No. Conductor Pre-Test During Fire Test Stream Test ! (1Hr:05 Min)(2Hr:55 Min)(3Hr:38 Min) ] 1 A 83.2 99.4 101.6 84.0 83.3 B 32.5 58.5 61.6 34.2 32.5 C 83.3 99.1 101.4 83.8 83.3 0 32.5 32.6 l E(ground) 0.5 0.3 F 32.9 33.0 G 83.7 83.7 H 32.5 32.5 l J 83.5 83.5 l K 32.3 32.3 L 83.6 83.7 2 A 71.5 86.1 25.8 OPEN OPEN 8 28.0 51.1 24.5 OPEN OPEN l C 71.7 86.2 32.5 OPEN OPEN l 0 28.1 OPEN I E(ground) 0.5 0.4 , F 28.1 OPEN I G 71.5 OPEN i H 28.1 OPEN J 71.5 OPEN K 28.1 OPEN L 71.7 OPEN 3 A 1.1 2.9 3.4 1.2 1.lf-B 1.1 3.0 3.5 1.3 1.2 C 1.2 3.0 3.6 1.4 1.3 E(ground) 0.5 0.3 4 A 1.0 2.8 3.3 1.2 1.1 B 1.0 2.6 3.1 1.0 1.0 C 1.0 2.7 3.2 1.1 1.1 E(ground) 0.5 0.3 5 A 0.6 1.1 1.3 0.7 0.6 E(ground) 0.4 0.3 6 A 0.6 1.2 1.4 0.7 0.6 E(ground) 0.4 0.3
i'
. Table 11 Insulation Resistance Before and After UL Test No. 2 '
(applied voltage ='200 V DC) Insulation Resistance (ohms) I Cable No. Cable Conductor Pre-Test- Post Test l ! 1 A to E (Sheath) 1.0 x 10 14 '8.0 x 1013 7.0 x 10 13 1.0 x 10 14 '!
~
B to E l C to E 6.0 x 10 13 1.0 x 10 14 - D to E 5.0 x 10 14 9.0 x 10 13 F to E 5.0 x 10 14 1.5 x 10 14 ! G to E 7.0 x 10 13 5.0 x 10 14 i H to E 6.0 x 10 13 1.0 x 10 14 j J to E 5.0 x 10 14 '1.0 x'10 14 K to E 8.0 x 10 13- 1.0 x 10 14 L to E 1.0 x 10 14 - 2.0 x 10 14 t l A to B 8.6 x 10 11 5.1 x 10 11 B to C 7.2 x 10 11 5.0 x'10 11 l C to D 1.3 x 10 12 5.3 x 10 11 D to F 1.7 x 10 12 5.6 x 10 11 I l F to G 1.6 x 10 12 7.5 x 10 11 ! G to H 1.1 x 10 12 5.9 x 10 11 H to J 9.7 x 10 11 5.8 x 10 11 J to K 1.1 x 10 12 5.3 x 10 11 K to L 1.2 x 10 12 5.2 x 10 11 L to A 1.3 x 10 12 9.5 x 10 11 l O
' Table 11 (Continued)- !
.v Insulation Resistance Before and After UL Test'No.'2 (applied voltage = 200'V DC)-
Insulation Resistance (ohms)' Cable No. Cable Conductor Pre-Test Post Test 1.5 x-10 14
~
2 A to E (Sheath) 1.7' x 1011 B to E 8.0 x 10 13 5.0 x 10 14 C to E 6.5 x l0 13 5.0 x 10 14 - D to E "6.0'x 10 13 5.0 x 10 14 F to E 1.5 x 10 14' 5.0 x 10 14 G to E -2.0 x 10 14 5.0 x.10 14-H to E 1 7.0 x 10.3 5.0 x 10 14 - J to E 15.0:x'10 14 '5.0 x 1014 5.0 x 10 14 5.0 x-10 14
~
K to E - L to E- 2.0 x 10 14 5.0 x'10 14 A to B 1.6'x.1012 2.4 x 10 10 B to C 1.9 x 10 12' 1.1x10}2 C to D 1.1x10}2. 9.7 x 10 11 D to F 1.2 x 10 12 7.7 x 10 11 F to G 1.8 x 10 12- 6.3'x-10 11 G to H 1.0 x 10 12 8.6 x 10 11 H to J 1.6 x 10 12 8.1 x 10 11 J to K 1.0 x 10 12 9.2 x 10 11 K to L 1.7 x 10 12 9.0 x 10 11 L to A 1.2 x 10 12 2.6 x 10 11
Table 11-(Continued) i , q Insulation Resistance Before and After UL Test No. 2 f a I (aonlied voltage = 200 V DC) I
.i 1
i J Insulation Resistance (ohms) l
- Cable No. Cable ' Con'ductor- Pre-Test Post Test -
, i 3 A to E (Sheath) 5.0 x 10 14 .5.0 x 10 13 B to E 5.0 x 10 14 3'.4 x 1013' C to E -6.0 x.10 13 2.3 x'1013 A to B 2.7 x 10 12 1.4 x 10 12' 1.3 x 10 12 B to C 2.2 x 10 11 C to A 1.2 x 10 12 1 9 x 10 11 4 A to E (Sheath) 6.0 x 10 13 5.0 x'10 14 B to E 2.0:x 10 14 2.0 x 10 14 1.0 x 10 14 C to E 3.0 x:10 14 A to B 2.4 x 10 12 1.'4x10}2 B to C 2.3 x 10 12 2.3 x 10 6 C to A 7.2 x 10 12 1.2 x 10 12 5 A to E (Sheath) 5.0 x 10 13 1.5 x 10 14 6 A to E (Sheath) 6.0 x 10 13 5.0 x 10 13 I
1 / .. l a.. _ _ _ _ _ _ _ _ _ _ - . _ - - _ - _ _ . -- ___ --____-
l TABLE 12 INSULATION RESISTANCE DURING UL TEST NO. 2-o (applied voltage = 49.8 V DC) INSULATION RESISTANCE (ohms-feet) TIME TIME TEMP. LENGTH CABLE COND. TO COND. COND.JIO SHEATH , (period) (hr: min) (des F) (feet) NUMBER MIN AVG' MAX MIN AVG MAX 1 15 1417 31.8 1 8.9e06 1.0e07 1.2e07 7.8e06 8.2e06 8.4e06 l 1 15 1417 27.9 2 5.2e06 3.8e06 6.4e06 4.3e06 4.5e06 4.6e06 - I 1 15 1417 30.2 3 5.6e07 7.7e07 1.le08- 4.7e07 6.0e07 6.7e07-1 15 1417 26.4 4 4.9e06 7.0e06.9.6e06 3.4e06 5.2e06 6.le06 1 1 15 1417 28.4 5 3.6e06 3.6e06 3.6e06 I 1 15 1417 25.5 6 .
~3.3e06 3.3e06 3.3e06 2 30 1564- 31.8 1 3.4e06 4.0e06 4.4e06 2.6e06 2.8e06 3.le06 2 30 1564 27.9 2 2.2e06 2.5e06 2.6e06' 1.7e06 1.9e06 2.0e06' 2 30 1564 30.2 3 6.0e07 6.7e07 7.7e07 4.4e07 5.2e07 6.2e071 l 2 30 1564 26.4 4 3.0e06 3.9e06 5.le06 1.9e06 3.9e06 5.le06 I 2 30 1564 28.4 5 1.3e06.1.3e06 1.'3e06 !
2 30 1564 25.5 6 1.3e06 1.3e06 1.3e06 3 45 1635 31.8 1 2.4e06 2.5e06-2.8e06 1.8e06 1.9e06 1.9e06 , 3 45 1635 27.9 2 1.5e06 1.7e06 1.8e06' 1.3e06.1.4e06 1.4e06 l 3 45 1635 30.2 3 6.7e07 7.9e07 9.6e07 4.7e07 6.6e07 7.8e07 l 3 45 1635 26.4 4 2.3e06 3.9e06 6.0e06 2.le06 4.5e06 6.0e06 l 3 45 1635 28.4 5 8.8e05.S.8e05 8.8e05 3 45 1635 25.5 6 9.9e05 9.9e05 9.9e05-4 60 1666 31.8 1 1.9e06 2.0e06 2.2e06 1.5e06 1.5e06 1.6e06 . 4 60 1666 27.9 2 1.3e06 1.5e06 1.6e06 1.0e06 1.le06 1.2e06 4 60 1666 30.2 3 1.0e08 1.2e08 1.4e08 8.5e07.1.0e08 1.2e08 4 60 1666 26.4 4 3.le06 5.4e06 7.9e06 2.0e06 5.4e06 8.0e06 4 60 1666' 23.4 5 6.5e05 6.5e05 6.5e05 4 60 1666 25.5 6 9.2e05 9.2e05 9.2e05 5 1:33 1787 31.8 1 1.3e06 1.5e06 1.7e06 1.2e06 1.4e06 1.6e06 5 1:33 1787 27.9 2 1.5e06 1.c e06 2.4c06 1.4e06 1.6e06 1.8e06 5 1:33 1787 30.2 3 8.8e07 9.4e07.1.le08 7.6e07 8.4e07 9.0c07 5 1:33 1787 26.4 4 8.9e05 3.2e06 5.2e06- 2.0e06 2.3e06 3.0e06 5 1:33 1787 28.4 .5 5.8e05 5.8e05 5.8e05 5 1:33 1787 25.5 6 6.5e06 6.Se06 6.5e06 6 2:02 1839 31.8 1 1.le06 1.le06 1.2e06 9.8e03 1.0e06 1.le06 l 6 2:02 1839 27.9 2 1.0e06 1.3e06 1.7e06 1.0e06:1.le06 1.3e06 6 2:02 1839 30.2 3 8.3e07 9.4e07 1.le08 7.9e07 8.5e07 8.8e07 6 2:02 1839 26.4 4 1.0e06 2.9e06 4.2e06 1.8e06 2.4e06 3.4e06 6 2:02 1839 28.4 5 3.6e05 3.6e05 3.6e05 6 2:02 1839 25.5 6 1.5e06 1.5e05 1.5e06 7 2:15 1858 31.8 1 9.8e05 1.0e06 1.le06 9.0e05 9.2e05 9.8e05 7 2:15 1858 27.9 2 9.4e05 1.2e06 1.5e06 8.6e05 1.0e06-1.2e06 1 7 2:15 1858 30.2 3 8.6e07 9.2e07 1.0e08 8.3e07 8.6e07 8.8e07 l 7 2:15 1858 26.4 4 1.le06 2.5e06 3.4e06 1.5e06 2.0e06 2.7<.06 i 7 2:15 1858 28.4 5 3.6e05 3.6e05 3.6u05 l 1
~
l 1 TABLE 12 (Continued) ] 1 INSULATION RESISTANCE DURING UL TEST NO. 2 (applied voltage = 49.8 V DC) i INSULATION RESISTANCE (ohms-feet) 1 TIME TIME TEMP. LENGTH CABLE COND. TO COND. COND. Tu SHEATH l (period) (hr: min) (deg F) (feet) NUMBER MIN AVG MAX MIN AVG MAX l 1 7 2:15 1858 25.5 6 1.4e06 1.4e06 1.4e06 !
~
8 2:50 1920 31.8 1 9.0e05 9.2e05 9.8e05 9.0e05 9.2e05 9.8e05 I 8 2:50 1920 27.9 2 7.2e05 8.9e05 1.le06 6.4e05 7.6e05 8.6e05 l 8 2:50 1920 30.2 3 8.4e07 9.le07 1.0e08 7.6e07 8.3e07 9.0e07 ! 8 2:50 1920 26.4 4 7.5e05 1.2e06 1.8e06 8.9e05 1.le06 1.2e06 I 8 2:50 1920 28.4 5 3.6e05 3.6e05 3.6e05 8 2:50 1920 25.5 6 1.4e06 1.4e06 1.4e06 9 3:29 31.8 1 2.0 ell 2.lell 2.4 ell 1.5 ell 2.0 ell 2.6 ell 9 3:29 27.9 2 1.7 ell 2.3 ell 2.9 ell 2.0 ell-2.5 ell 2.9 ell i 9 3:29 30.2 3 2.lell 2.3 ell 2.8 ell 2.0e11 2.4 ell 2.9 ell 1 9 3:29 26.4 4 5.le07 1.2e10 3.3e10 3.le10 1.0 ell 1.6 ell 9 3:29 28.4 5 2.0 ell 2.0 ell 2.0 ell " 9 3:29 25.5 6 2.0eil 2.0e11 2.0 ell' 10 20:50 31.8 1 4.4 ell 2.2e12 4.9e12 2.2 ell 2.3 ell 2.4 ell l 10 20:50 27.9 2 2.9e12 4.3e12 5.8e12 3.lell 3.7 ell 4.lell ) 10 20:50 30.2 3 2.7e12 4.0e12 4.7e12 3.4 ell 4.0 ell 4.8 ell I 10 20:50 26.4 4 4.le07 2.9e10 6.3e10 7.8e09 1.6e10 3.0e10 10 20:50 28.4 5 4.2 ell 4.2 ell 4.2 ell 10 20:50 25.5 6 3.5 ell 3.5 ell 3.5 ell 11 25:10 31.8 1 2.5e12 4.7e12 6.6e12 1.9 ell 2.lell 2.3 ell l 11 25:10 27.9 2 1.le12 2.3e12 3.5e12 3.8 ell 4.0 ell 4.2 ell ' 11 25:10 30.2 3 8.9 ell 2.0e12 3.le12 3.8 ell 4.4 ell 5.2 ell l 11 25:10 26.4 4 4.0e07 1.5e10 2.3e10 6.4e09 1.7e10 3.6e10 l 11 25:10 28.4 5 4.0 ell 4.0 ell 4.0 ell 1 11 25:10 25.5 6 3.6 ell 3.6 ell 3.6 ell 12 43:45 31.8 1 2.2e12 6.2e12 9.9e12 2.3 ell 2.3 ell 2.3 ell 12 43:45 27.9 2 7.9 ell 1.2e12 1.7e12 3.8 ell 4.0 ell 4.0 ell 12 43:45 30.2 3 6.3 ell 9.2 ell 1.3e12 4. Sell 5.lell 5.9 ell 12 43:45 26.4 4 1.6e08 2.0e12 5.Se12 1.6 ell 2.8 ell 3.8 ell 12 43:45 28.4 5 4.8 ell 4.8 ell 4.8 ell 12 43:45 25.5 6 4.lell 4.lell 4.lell 13 49:40 31.8 1 5.2 ell 7.8 ell 1.2e12 3.2 ell 5.4 ell 8.2 ell 13 49:40 27.9 2 6.0 ell 7.9 ell 1.0e12 4.0 ell 5.2 ell 6.2 ell l 13 49:40 30.2 3 6.7 ell 8.7 ell 1.0e12 4.lell 4.8 ell 6.lell 13 49:40 26.4 4 5.7e07 8.7 ell 1.6e12 2.5 ell 3.lell 3.5 ell l 13 49:40 28.4 5 4.3 ell 4.3 ell 4.3 ell l 13 49:40 25.5 6 3.6e11 3.6 ell 3.6 ell 14 67:05 31.8 1 3.0 ell 2.3e12 4.9e12 2.le11 2.4 ell 2.8 ell 14 67:05 27.9 2 5.0 ell 8.4 ell 1.2e12 4.lell 4.6 ell 5.0e11 14 67:05 30.2 3 5.2 ell 1.lel2 1.9e12 4.2 ell 5.lell 6.lell 14 67:05 26.4 4 5.8e07 1.8e12 3.3e12 3.0 ell 3.2 ell 3.4 ell
I TABLE 12 (Continued) ! INSULATION RESISTANCE DURING UL TEST NO. 2 (applied voltage = 49.8 V DC) i INSULATION RESISTANCE (ohms-feet) [ TDIE TDiE TEMP. LENGTH CABLE COND. TO COND. COND. TO SHEATH (period) (hr: min) (deg F) (feet) NUMBER MIN AVG MAX MIN AVG MAX ! 14 67:05 28.4 5 4.2 ell 4.2 ell 4.2 ell 14 67:05 25.5 6 3.9 ell 3.9 ell 3.9 ell l 15 73:30 31.8 1 7.3 ell 1.2e12 2.2e12 2.8 ell 3.9 ell 4.6 ell 15 73:30 27.9 2 5.4 ell 7.4 ell 9.7 ell 3.7 ell 4.lell 4.3 ell 15 73:30 30.2 3 4.6 ell 7.0 ell 9.4 ell 4.3 ell 4.9 ell 5.9 ell ! 15 73:30 26.4 4 5.7e07 9.lell 1.6el2 2.8 ell 3.5 ell 4.3 ell ! 15 73:30 28.4 5 3.9 ell 3.9 ell 3.9 ell i 15 73:30 25.5 6 3.7 ell 3.7 ell 3.7 ell ! l 16 91:10 :31.8 1 6.8 ell 1.lel2 1.8e12 2.6 ell 2.8 ell 3.lell i 16 91:10 27.9 2 6.4 ell 8.4 ell 1.0e12 2.9 ell 3.4 ell 3.9 ell l 16 91:10 30.2 3 6.5 ell 1.lel2 1.6el2 3.0 ell 3.6 ell 4.5 ell l 16 91:10 26 ;4' 4 5.9e07 5.8el2 1.6e13 2.7 ell 2.8 ell 3.0 ell l l s16 91:10 28.4 5 3.2 ell 3.2 ell 3.2 ell 16 91:10 25.5 6 2.8 ell 2.8 ell 2.8 ell i i i y/' ')
}) g s
x i i l l l 1
' TABLE 12 (Continued) l INSULATION RESISTANCE DURING UL TEST NO. 2 (applied voltage = 200 V DC)
INSULATION RESISTANCE (ohms-feet) ) TIME TIME TEMP LENGTH- CADLE COND..TO COND. COND. TO SHEATH (period) (hr: min) (deg F) (feet) NUMBER. MIN AVG MAX MIN AVG MAX 1 19 1438 31.8 1 7.5e06 8.8e06 1.le07 7.le06 7.3e06 7.5e06 ,
-1 19 1438 27.9 2 3.7e06 4.0e06 4.2e06 3.0e06 3.3e06 3.7e06 l 1 19 1438 30.2 3 5.2e07 7.3e07 9.9e07 2.5e07 7.4e07 1.le08 1 19 1438 26.4 4 4.0e06 5.6e06 8.0e06 2.8e06-3.9e06 5.4e06 ;
1 19 1438 28.4 5 3.5e06 3.5e06 3.5e06 l 1 19 1438 25.5 6 . 3.le06 3.le06 3.le06 2 34 1581 31.8 1 2.9e06 3.3e06 3.8e06 2.2e06 2.3e06 2.5e06 2 34 1581 27,9 2 1.7e06 2.le06 2.2e06 1.5e06 1.7e06 1.8e06 l 2 34. 1581 30.2 3 6.4e07 7.6e07 9.9e07 3.9e07 6.2e07 8.2e07 J 2 34 1581 26.4 4 2.4e06 3.7e06 4.9e06 1.9e06 4.2e06 5.4e06 2 34 1581 28.4 5 .1.2e06 1.2e06 1.2e06 2 34 1581 25.5 6 1.le06 1.le06 1.le06 3 48 1641 31.8 1 1.9e06'2.2e06 2.4e06 1.4e06 1.4e06 1.4e06 3 48 1641 27.9 2 1.2e06 1.4e06 1.5e06 9.0e05 1.0e06 1.le06 ! 3 48 1641 30.2 3 9.8e07 1.le08 1.2e08 7.0e07 9.4e07 1.2e08 3 48 1641 26.4 4 2.9e06 4.7e06 6.5e06 2.3e06 4.9e06 7.0e06 3 48 1641 28.4 5 7.8e05 7.8e05 7.8e05 1 3 48 1641 25.5 6 8.2e05 8.2e05 8.2e05 l 1.le06 1.le06 1.le06 4 1:03 2677 31.8 1 1.Se06 1.7e06 1.9e06 4 1:03 1677 27.9 2 9.9e05 1.2e06 1.3e06 7.7e05 8.2e05 8.8e05 4 1:03 1677 30.2 3 1.5e08 1.7e08 1.9e08 1.2e08 1.5e08 1.8e08 4 1:03 1677 26.4 4 2.8e06 6.2e06 8.7e06 3.5e06 7.0e06~9.4e06 4 1:03 1677 28.4 5 5.0e05 5.0e05 5.0e05 l 4 1:03 1677 25.5 6 6.0e05 6.0e05 6.0e05 ' 5 1:36 1799 31.8 1 1.0e06 4.3e06 9.9e06 7.le05 8.9e05 1.0e06 5 1:36 1799 27.9 2 1.3e06 1.7e06 2.le06 8.8e05 9.9e05 1.le06 1 5 1:36 1799 30.2 3 8.6e07 9.7e07 1.le08 8.0e07 9.0e07 9.8e07 1 5 1:36 1799 26.4 4 5.5e05 4.6e06 9.2e06 1.le06 3.4e06 5.3e06 5 1:36 1799 28.4 5 3.2e05 3.2e05 3.2e05-5 1:36 '1799 25.5 6 5.9e06 5.9e06 5.9e06 6 2:05 1846 31.8 1 7.3e05 8.le05 9.3e05 5.0e05 5.4e05 5.6e05 6 2:05 1846 27.9 2 8.4e05 1.le06 1.3e06 5.0e05 6.Se05 7.7e05 6 2:05 1846 30.2 3 9.5e07 1.le08 1.2e08 8.6e07 9.7e07 1.le08 6 2:05 1846 26.4 4 6.9e05 4.5e06 8.0e06 2.5e06 4.3e06 5.8e06 6 2:05 1846 28.4 5 2.5e05 2.5e05 2.5e05 6 2:05 1846 25.5 6 2.2e06 2.2e06 2.2e06 7 2:17 1863 31.8 1 6.7e05 7.3e05 8.3e05 4.4e05 4.8e05 5.0e05 7 2:17 1863 27.9 2 7.7e05 9.8e05.1.2e06 4.2e05 5.9e05 7.le05 7 2:17 1863 30.2 3 8.8e07 9.9e07 1.le08 8.8e07 9.4e07 9.8e07 l 7 2:17 1863 26.4 4 9.3e05 3.2e06 4.9e06 1.6e06 2.6e06 3.5e06 l 7 2:17 1863 28.4 5 2.0e05 2.0e05 2.0e05 i 4
. TABLE 12 (Continued)
INSULATION RESISTANCE DURING UL TEST NO. 2 (applied voltage = 200 V DC) INSULATION RESISTANCE (ohms-feet) TIME TIME TEMP LENGTH CABLE COND. TO COND. COND. TO SHEATH (period) (hr: min) (deg F) , (feet) NUMBER MIN AVG HAX MIN AVG MAX - 7 2:17 1863 25.5 6 1.6e06 1.6e06 1.6e06 8 2:52 1912 31.8 1 5.6e05 6.3e05 7.3e05 3.6e05 4.0e05 4.4e05 - 8 2:52 1912 27.9 2 4.8e05 6.2e05 7.7e05 2.3e05 3.5e05'4.4e05 8 2:52 1912 30.2 3 9.9e07 1.le08 1.2e08 8.7e07 9.5e07.1.le08 8 2:52 1912 26.4 4 6.9e05 1.2e06 1.7e06 4.5e05 9.8e05 1.7e06 8 2:52 1912 28.4 5 1.6e05 1.6e05 1.6e05 8 2:52 1912 25.5 6 . 1.le06 1.le06 1.le06 9 3:34- 31.8 -1 1.6 ell 2.0 ell 2.5 ell 1.9 ell 2.3 ell 2.6 ell 9 3:34 27.9 2 6.3e09 1.6 ell 3.0 ell -1.9 ell 2.3e11 2.8 ell 9 3:34 30.2 3 1.9 ell-2.3 ell 2.7 ell .1.9 ell 2.4 ell 3.0 ell-l 9 3:34 26.4 4 3.8e07 6.4e08 1.8e09 5.0e07 8.le07 1.3e08 9 3:34 28.4 5 2.lell 2.lell 2.lell 9 3:34 25.5 6 1.7 ell 1.7e11.1.7e11-10 21:00 31 8 1 3.2 ell 4.3 ell 5.le11 3.2 ell 3.4 ell 3.7 ell 10 21:00 27.9 2 4.5 ell 5.4 ell 6.6 ell 3.29e9 2.5 ell 4.0e11 10 21:00 30.2 3 5.6 ell 5.8 ell 6.0 ell 3.8 ell 4.2 ell 5.0 ell 10 21:00 26.4 4 3.3e07 3.0e08 7.le08 5.0e08 1.2e09 1.6e09 l 10 21:00 28.4 5 3.4 ell 3.4 ell 3.4 ell 10 21:00 25.5 6 3.0 ell 3.0 ell 3.0 ell 11 25:20 31.8 1 3.6 ell 5.0 ell 5.9 ell 3.3 ell 3.6 ell 4.2 ell 11 25:20 27.9 2 6.0 ell 6.5 ell 7.0 ell 3.9 ell 4.3 ell 4.7 ell 11 25:20 30.2 3 6.3 ell 6.6e11.7.0e11 4.le11 4.6 ell 5.4 ell 11 25:20 26.4 4 6.2e07 2.9e09 7.6e09 2.6e08 1.2e09 1.8e09 11 25:20 28.4 5 3.7 ell 3.7 ell 3.7 ell 11 25:20 25.5 6 3.3 ell 3.3 ell 3.3 ell 12 43:55 31.8 1 5.2 ell 5.9 ell 6.3 ell 3.9 ell 4.2 ell 4.8 ell 12 43:55 27.9 2 6.6 ell 6.9 ell 7.3 ell 4.3 ell 4.7 ell 5.3 ell 12 43:55 30.2 3 6.9 ell 7.2 ell 7.5 ell 4.5 ell 5.0e11 5.8 ell 12 43:55 26.4 4 5.2e07 1.4e10 3.9e10 1.9e09 1.2e10 3.3e10-12 43:55 28.4 5 4.3 ell 4.3 ell 4.3 ell 12 43:55 25.5 6 3.5 ell 3.5 ell 3.5 ell 13 49:47 31.8 1 5.0 ell 5.6 ell 6.0 ell 3.5 ell 3.8 ell 4.4 ell 13 49:47 27.9 2 5.5 ell 5.9 ell 6.2 ell 3.2 ell 4.0 ell 4.8 ell 13 49:47 30.2 3 5.8 ell 5.8e11~5.9 ell 3.4 ell 4.0 ell 4.9 ell 13 49:47 26.4 4 5.3e07 1.2 ell 2.lell 2.2e09 8.6e09 2.le10 13 49:47 28.4 5 3.7 ell 3.7 ell 3.7 ell 13 49:47 25.5 6 2.9 ell 2.9e11 2.9 ell 14 67:15 31.8 1 4.5 ell 5.0 ell 5.4 ell' 3.4 ell 3.7 ell 4.2 ell 14 67:15 27.9 2 5.4 ell 5.7 ell 6.0 ell 3.4 ell 3.9 ell 4.6 ell 14 67:15 30.2 3 5.5 ell 5. Sell 6.2 ell 3.7 ell 4.2 ell 5.0 ell 14 67:15 26.4 4 5.3e07 1.2 ell-2.2 ell 1.8e10 1.6 ell 2.5 ell I
r l TABLE 12 (Continued) INSULATION RESISTANCE DURING UL TEST NO. 2 j (applied voltage = 200 V DC) INSULATION RESISTANCE (ohms-feet) TIME TIME TEMP LENGTH CABLE COND. TO COND. COND. TO SHEATH (period) (hr: min) (deg F) (feet) NUMBER MIN AVG MAX MIN AVG MAX 14 67:15 28.4 5 3.7 ell 3.7 ell 3.7e11 14 67:15 25.5 6 3.lell 3.lell 3.lell 15 73:35 31.8 1 5.7 ell 5.9 ell 6.0 ell 3.3 ell 3.6 ell 4.3 ell l 15 73:35 27.9 2 5.3 ell 5.7 ell 6.lell 3.2 ell 3.9 ell 4.5 ell ' 15 73:35 30.2 3 5.5 ell 5.7 ell 5.9 ell 3.4 ell 3.9 ell 4.7 ell 15 73:35 26.4 4 5.3e07 1.6 ell 3.9 ell 4.7e10 1.7 ell 2.4 ell 15 73:35 28.4 5 3.2 ell 3.2 ell 3.2 ell 15 73:35 25.5 6 2.8 ell 2.8 ell 2.8 ell 16 91:15 31.8 1 4.3 ell 4.8 ell 5.2 ell 3.0 ell 3.5 ell 4.0 ell 16 91:15 27.9 2 4 lell 4.7 ell 5.0 ell 2.7 ell 3.4 ell 4.lell 16 91:15 30.2 3 4.5 ell 4.6 ell 4.7 ell 2.7 ell 3. Jell 4.0 ell 16 91:15 26.4 4 5.4e07 5.9e10 1.2 ell 6.le10 1.5 ell 2.lell 16 91:15 28.4 5 2.4 ell 2.4 ell 2.4 ell 16 91:15 25.5 6 2.lell 2.lell 2.lell , 1 I l 1 l 1 I l 1 o.
.. q
.l TABLE 13
- Voltage Withstand Test UL Test No. 2 Cable Assembly No. Time Applied Voltage Leakage Current (hr: min) (V DC) (mA) 1 1:12 600' 1.3 !
2 1:17 274 0.8 3 1:21 600 0.5 4 1:26 125 0.6 .1 5 1:28 .603 0.7 .l 6 1:31 600 1.9 1 2:25 602 2.1- 1 2 2:28 203 2.5 1 3 2:30 601 0.6 4 2:32 100- 1.1 5 2:34 602 1.5- 1 6 2:37 601 0.7 l 1 3:47 1) 600 0.0 2 3:51- 1) 302 0.1 3 3:54 1) 601 0.0 4 3:56 1) 375 0.3 5 3:57 1) 602 0.0 6 4:00 1) 602 0.0 1 Post Test 600 0.00 2 Post Test 600 0.13 3 Post Test 600 0.00 4 Post Test 600 0.00 5 Post Test 600 0.00 6 Post Test 600 0.00 1 1 i (1) After fire endurance and hose stream' tests.
-74
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TABLE 14 Cable Temperature Outside Furnace UL Test No. 2 Tempera +"re (*F) Time T.C. 5 T.C. 6 T.C. 7 Average Furnace (Min) . 0 62.5 63.5 64.3 65.4 20 62.7 63.7 64.6- 1438.1 40 63.6 64.1 64.6 1604.9 60 65.6 65.4 65.0 1666.3 80 68.8 66.7 '64.6 1753.0 , 100 74.3 70.7 67.4 1824.1 l 120 79.7 73.9 68.5 1830.2' 140 85.3 76.8 69.1 1880.8 a 160 91.6 80.4 70.5 1916.6 180 98.8 85.5 74.1 1912.7 NOTE: Thermocouple were mounted on cable assembly 4. T.C. 5 Mounted on cable at its exit point-from test wall. T.C. 6 Mounted 1 inch from wall. T.C. 7 Mounted 3 inches from wall. de l __..____._._.._..__-____m_.m_____
E ]
\
4 l l TABLE 15 l l
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*' Insulation Resistance ERD Elevated Temperature Test 1
Insulation Resistance (ohm-feet) at 50 V DC at 200 V DC l Time Temp. A-3 A-Sheath B-Sheath A-B A-Sheath B-Sheath ( l (*F) I 14 14 14 14 14 9:15am RT 10 "I 10 10 10 10 10 8 8
- 59 1045 -
2.2x10 - - 9.2x10 , J 9 9 9 8 10:09 1055 1.6x10 - 2.1x10 1.1x10 - 7.7x10 9
- 13 1055 -
1.2x10 - - - - l 7 8 q 11:16 1300 - - 8.1x10 - - 1.7x10 8 8
- 22 1300 -
1.8x10 - -
~ 1.6x10 ,
j 8 8
- 26 1300 1.7x10 - -
2.1x10 , , i 9.6x107 2.4x10 7 1.3x10 8 j 1:52 1510 - - , i 7 8 7
- 56 1510 8.5x10 - -
1.1x10 - 9.9x10
~
8 7 I 2:52 1690 - 2.0x10 - - - - i 7 7 l
- 56 1700 - - - -
5.9x10 5.9x10 7 7 7
- 59 1710 3.8x10 -
3.7x10 6.6x10 - - 1 7 3:51 1830 - - - - 1.4x10 - 7 7 7 7
- 55 1840 -
2.2x10 2.2x10 3.3x10 - 3.1x10 7
- 57 1845 2.7x10 - - - - -
4:25 1.1x10 7 j 1920 - , , , , i 7 7
- 28 1925 - - - -
1.6x10 1.6x10 7 7 7
- 30 1930 1.1x10 -
1.2x10 1.5x10 - - , 13 14 13 13 13 8:07am 340 3.7x10 13 5.1x10 1.8x10 3.7x10 4.4x10 4.4x10 L
i TABLE 16 I r Conductor Resistance Measurements Taken During ERD Elevated. Temperature Test Time Temperature Conductor Resistance (ohms) (br: min) -( F). Conductor A Conductor'B 9:30 RT . .789 .816. 10:18 1055 2.029 2.093-11:26 1300 2.399 2.463 1:56- 1510 2.468 2.479-l '3:57 1845' 3.255 3.330 ' t
'4:33 1930 3.997
.4:38 1930 3. 970 ~.
l - RT 1.045 1.055
'i t
l i-L.I ._ __
p q 4
-l TABLE 17 i
/
o Electrical Properties at Elevated Temperature - l 1700*F 1925*F I (1-HourRating)(3-HourRating) Conductor Resistance Copper Conductors 4.2 Times Room 5.5 Times Room . Temp. Value Temp. Value I
, Insulation Resistance (1) i I
7 7 2/C Copper cable 2.0X10 ohm-feet 1.1X10 ohm-feet 3/C Copper cable (2) 3.4X106 chm-feet 1.1X106 ohm-feet Coax copper cable (2) 6.5X105 ohm-feet 6.5X105 ohm-feet (1) Values given are applicable to the specific cables tested. (2) These values are a lower bound on the actual insulation resistance due to the measurement technique - refer to Section 5.1.3.
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1 e I, I FIGURE 1 CABLE ASSEMBLIES
.k c 40' (NCM) r i
l i CABLE ASSY w r I
/ 6 6 6 6 I m
SEAL PLATE SEAL PLATE ASSY j g,y . CABLE ASSEMBLY ASSY. l .j l
< 40' (NOM) = -
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< 40' (NOM) r e
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FIGURE 2 ARRANGEMENT OF CABLE ASSEMBLIES AND ]j ORIENTATION OF FURNACE AND BRICK WALL - UL TEST NO.1 L _ n -
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W. U i (FIRE SIDE) 12 THERMOCOUPLE , 76 GAS JETS l, CABLE LENGTH OF CABLE NO. CABLE TYPE CABLE PART NO, EXPOSED TO FIRE 1 10/C . ChAl w/SPLlCE 00020 1 30'5" 2 10/C . ChAl 00010 1 , 32'6-1/4" 3 10/C ChAl w/ CONNECTOR 00040 2/00030 1 25' 9 1/4"' 4 3/C CU 00060 1 ' 30'6" 5 3/C CU w/ SPLICE 00070 2 26' 5 1/2" 6 3/C . CU w/ CONNECTOR 00090 1/00080 1 25'10 3/4"' 7 COAX CU 00100 1 28' 4 1/4" 8 COAX CU w/ SPLICE 00110 1 25'11 1/4" 9 COAX . CU w/ CONNECTOR 00130 1/00120 1 26'1 3/4"' 10 10/C CU 00060 1 31'3 1/2"
- INCLUDES SECTION COVERED BY NOM. 24-1/2" LONG CABLE CONNECTOR WRAP. j i 1 l
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4 FIGURE 3 CABLE ASSEMBLIES ON TEST WALL BEFORE UL TEST NO.1 l
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.. h? .~ tt. 5i (a) A 10" x 11" piece of E50S mat material was (b) Two pieces of mat material 40" x 24.5" were used to wrap a 10" section of cable on each added one at a time to protect a 24.5" length side of the connector. Aluminum tape held the of cable. Strapping tape was used to hold the mat material to the cable to start the wrapping mat material in position for the first wrap and process. Each wrap was made tightly around to hold each piece of material after it had been the cable and hsid in place with strapping tare wrapped around the connector, when complete.
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(c) A thin layer of 303 putty was applied to end of (d) A stainless steel sheet was wrapped around the ! the wrap to seal any openings. insulation material and held in place with j stainless steel worm type hose clamps to
-l complete the wrapping procedure. j n
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FIGURE 6 STANDARDIZED TIME TEMPERATURE CURVE SPECIFIED BY ASTM E 119 1,900 -
- 3 HOURS 1925*F 1,800 -
.1,700 -
1 HOUR .1700'F ' 1,600 - 1,500 - 1,400 - ) l 1,300 - ) T 1,200 - E M 1,100 - P E 1,000 - l R A 900 - T U 800 - R 600 - 1 500 - , 400 - 300 - 200 - 100 - 68 -
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20 40 60 80 100 120 140- 12 W # TIME (MINUTES)
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ASTM E 119 TIME TEMPERATURE CURVE AND ACTUAL AVERAGE FURNACE TEMPERATURES - UL TEST NO.1 i
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- - - AVERAGE FURNACE TEMPERATURE -
f l ASTM E 119 TIME TEMPERATURE CURVE l I sa - I - I f ASTM E 119 requires that the oven temperature be controlled so that the - area under sie actual tirne temperature curve be within 10% of the area l i . under the standard curve for fire tests of 1 hour duration. The area under l the actual curve was within 3% of the corresponding area under the
' l f standard curve.
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h FIGURE 9 CABLE ASSEMBLIES ON TEST WALL FOLLOWING UL TEST NO.1 1 I
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I FIGURE 11 { ARRANGEMENT OF CABLE ASSEMBLIES AND ORIENTATION OF FURNACE q AND BRICK WALL - UL TEST NO. 2 I l l I l l
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t (FIRE SIDE) 12 THE RMOCOUPLES 76 GAS JETS 4 CABLE CABLE LENGTH OF CABLE 5 N O. CABLE TYPE PART NO. EXPOSED TO FIRE l' 1 10/C . ChAl 00010 2 31'9"
, 2 10/C ChAlw/ SPLICE 00020-2 27'11" 3 3/C CU 00060 2 30'2" 4 3/C CU w/ SPLICE 00070 1 26'5" 5 COAX CU 00100 2 28'5" 6 COAX CU w/ SPLICE 00110 2 25' 6" hn l
FIGURE 12 l CABLE ASSEMBLIES ON TEST WALL BEFORE UL TEST NO. 2 l i
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I E M P E R A T U R E op3 1000 - ASTM E 119 TIME TEMPERATURE CURVE
- = = - ACTUAL AVERAGE OVEN TEMP 500 - -
ASTM E 119 requires that the furnace temperature be controlled
' so that the aree under the actual time temperature curve be within 5% of the area under the standard curve for fire tests of 3 hour duration. The area under the actual curve was within 2% of the corresponding area under the standard curve.
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i . D FIGURE 15 CABLE ASSEMBLIES ON TEST WALL FOLLOWING UL TEST NO. 2 W l p v _i g y k =_ i & . - J i W 3 1i l _
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g- - - FIGURE 16 ' i THERMOCOUPLE SIGNALS CARRIED BY CABLE l ASSEMBLIES 1 AND 2 - UL TEST NO. 2 l n-+ d- g d
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REFERENCE THERMOCCUPLES [ "- - - CABLE ASSEMBLY 1 ' M - * - CABLE ASSEMSLY 2 I P E R U i R N E op) VOLTAGE WITHSTAND MEASUREMENTS WERE TAKEN IN THESE TIME PERIOOS l f ; 50 - j Ns 's__%
- 40 -
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