ML17333A822
| ML17333A822 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 04/05/1983 |
| From: | Litsky A, Mccallin J, Sellmeyer G AMERICAN ELECTRIC POWER CO., INC. |
| To: | |
| Shared Package | |
| ML17333A823 | List: |
| References | |
| CL-492, NUDOCS 9703260172 | |
| Download: ML17333A822 (46) | |
Text
ATTACHMENT 4 TO AEP:NRC:0692DL TEST REPORT CL"492 "AMPACITY TEST FOR POWER CABLES IN RANDOMLY"FILLEDTRAYS" 9703260i72 970320 PDR ADOCK 050003i5 P
Page 1
oE 6
TEST REPORT American Electric Power Service Corp.
Canton Laboratory P.O, Box 487
SELLMEYER; Te S t By J.
P.
McCALLIN Report By:
J
~ P.
McCALLIN Approved By:
es t o
~
CL-492 Date APRIL 5, 1983 Made For:
AEPsc-NEw YQRK Sponsor:
- w. F. wILsoN Te s t Comp le ted:
MARcH 15, 1983 I.
INTRODUCTION The results of this test will be used to determine requirements of Cook Plant modifications, along with trying to establish standards for de-rating of cables in trays.
A conclusion will not be drawn as part of this report, but will be included in the sponsor's analyses of the data.
II.
OBJECTIVE The purpose of this test is to determine the ampacity of power cables in randomly-filled trays.
The results should indicate the effect on cable ampacity by tray design (i.e. ventilated or solid), tray fill, cable size, and tray content, with and without a
3 M Company fire barrier envelope.
III.
TEST METHOD The generalized test procedure is as follows:
e 1.)
Fill cable tray to specified tray fill.
2.)
Attach thermocouples.
3.)
Load cables to a specified amperage.
4.)
Keeping ambient temperataure
- constant, increase current until conductor "hot spot" temperature is equal to the rated conductor temperature of 90 C.
Copie" To:
T. O. Argenta/B.
R ~ Larson-B. J.
Ware C. B. Charlton T. E. King Canton Columbus Canton MGI New York AEP:NRC:0692DL Attachment 4
Page 1 of 23
Page 2 of 6 CL-492 IXI. TEST METHOD (Cont'd.)
The detailed test procedure was as follows:
Equipment Cable Tra and Cable Tray Cover 1.1
~ 1.
Cable tray and cable tray cover were AEP standard indoor, galvanized stee's follows:
B/M Item No.
Descri tion 28-001 28"005 28-002 28"006 12" x 6" ventilated bottom tray 12" x 6" solid bottom tray 12" ventilated tray cover 12" solid tray cover.
1.1.2.
A 12'ray and cover were cut to 8'o suit the test chamber, a minimum of 6'as required.
1
~ 1.3.
Tray cover was attached to the tray by means of >4" hex washer head
- screw, item No.28-525.
1.1.4.
~
~
Cable tray ends were sealed during the test with thermal insulating material to prevent heat loss through these areas.
Note:
This may have caused excessive heating of the cables passing through the thermal seal; therefore, temperature readings were taken a minimum of 1'rom the thermal seal.
1.2 Fire Barrier Envelope and Su port Structure.
1
~ 2.1.
Fixe barrier envelope and Unistrut support structure were assembled as shown in the Appendix.
1.2.2.
The ventilated fire barrier envelope top was made from the solid composite sheet with >4" holes punched on 2" spacing.
1.2.3.
The Unistrut support structure was sized for a minimum of air space between itself and the enclosed cable tray.
1.3.
Cables 1.3.1.
Cables were standard 600 V, copper triplexed, non-jacketed cable.
Descriptions are in the Appendix.
1.3.2.
~
~
~
Xnsulation was cross-linked polyethylene rated at 90 C.
AEP:NRC:0692DL Attachment 4
Page 2 of 23
Page 3 of 6 CL-492 III. TEST METHOD
{Cont'd. )
1.3.3.
Cable sizes used for testing were:
3TC N12 AWG 3TC N10'WG 3TC N2/0 AWG 3TC 350 MCM 3TC 750 MCM.
1.3.4.
The following data was recorded for each cable:
I A)
Manufacturer B)
Conductor diameter C)
Insulation thickness D)
Thermal resistivity of the insulation E) dc resistance in 0/ft.
1.4.
Power Source, and Monitoring Equi~ment 1.4.1 Power sources and monitoring equipment are shown in Figure 1
~
Test Setu 2.1 Cable Tra 2.1.1.
Cable tray was supported 2Q feet above floor to a'ow for natural ventilation.
2.2.
Cable 2.2.1.
The cables were installed randomly in tray; spacing was not maintained.
2.2.2.
The cable was "looped" through the tray to form the required number of cables within the tray.
2.2.3.
The voltage and amperage of each "circuit" were monitored through-out the test.
2.3.
Thermocouples 2.3.1.
T"type thermocouples were used to measure temperatures of the following:
a) ambient air b) tray outer surface
{side and top) c)
air space in tray d) conductors.
ABP:NRC:{)692DL Attachment 4
Page 3 of 23
Page 4 of 6 CL-492 III. TEST METHOD (Cont'd. )
Thermocouples were installed against the insulation.
Note:
Originally it was requested to measure the temperature on the conductor, but was determined to be faster and moze accurate to measure at the insulation and add a correction factor.
2.3.3.
Thermocouples were installed on the inward side of the conductors in a triplex arrangement as indicated in Fiaure 2.
2.3.4.
Thermocouples were embedded in "Omegatherm 201 high thermal conductivity paste".
2.3.5.
Thermocouples were installed on cabl s located in the center of the tray where:
1) heat generation is the greatest, 2) heat dissipation is the least (see Figure 3) 2.3.6.
The minimum number of thermocouples used to measure conductor temperatures were as follows:
a) three for single cables in a tray b) 1/3 times the number of circuits in the tray c) two for each type of cable in the tray.
3.
Procedure 3.1.
Sin le Cables 3.1.1.
For single cable tests, cable was energized to 90% of the rated ampacity as given in electrical plant design guideline 17.1 "Poi er Cable Sizing", Rev.
2, Jan.
17, 1978, originated by S.
H. Zucker shown in the Appendix as Table No. l.
3.1.2.
Temperatures were allowed to stabilize.
The "hot spot" temperature (hottest reading monitored) and the graph in Figure 4 determined the current which should heat the cable to its temperature rating.
The current was raised to this determined value.
3.1.3.
The temperature was allowed to stabilize around 90 C.
- Current, voltage, and temperature readings were recorded at 15-minute i:ntervals during the entire test.
3.1.
Multiple Like Cables 3.2.1.
Cables were energized to 50% of the ampacity recorded in 3.1.3 above.
AEP:NRC:0692DL Attachment 4
Page 4 of 23
III. TEST METHOD (Cont'd.)
Page 5 of 6 CL-492 3.2.2.
Procedures in steps 3.1.2.
and 3.1.3.
were then followed.
3.3.
Cable Mixtures 3.3.1.
Cables were energized to 75% of the ampacity recorded in 3.1.3.
above.
3.3.2.
Procedures in steps 3.1.2.
and 3.1.3.
were then followed.
3.4.
Tests with Fire Barrier Envelope 3.4.1.
Cables were energized to 50'L of the ampacity recorded in 3.1.3.
for ventilated tray ventilated cover.
3.4.2.
Procedures in steps 3.1.2.and 3.1.3.
were then followed.
Test Criteria 4.1.
4.2.
Data was recorded for temperature,
- current, and voltage.
Tests were done for the following tray installations:
a) ventilated tray, no cover b) ventilated tray, ventilated cover c) solid tray, solid cover d) ventilated tray, no cover, solid, fire barrier e) ventilated tray, no cover, fire barrier with ventilated top.
IV.
TEST RESULTS The test results are tabulated on the data sheets.
Thermocouple
¹4 is the ambient temperature and ¹5 is the air space inside the tray.
Each thermocouple was attached to a 2" x 2" x
>4" copper piece to stabilize temperature readings.
Thermocouples
¹6 and N7 measured the tray top and side respectively.
Thermo-couples
¹8-13 and 15 monitored the conductor temperatures.
All conductor readings on the data sheets were arrived at by taking the thermocouple reading on the insulation and adding a calculated correction factor as shown in Table ¹2.
On one test the thermocouples monitoring the tray top and tray side were found to be lifted the next morning.
Both temperatures read near ambient, which probably shows they had lifted during the test, but were not noticed at the time.
AEP:NRC:0692DL Attachment 4
Page 5 of 23
Page 6 of 6 CL-492 IV.
TEST RESULTS (Cont'd.)
On several other tests it is noted that the tray vibrated.
The effect of this vibratio'n on the test results has not yet been determined.
V.
DISCUSSION For future reference, the time involved per test once actual testing started was normally 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />, plus 1$ hour setup and teardown.
Some tests ran longer.
Tests with the fire barrier normally took 9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> plus 14 hour1.62037e-4 days <br />0.00389 hours <br />2.314815e-5 weeks <br />5.327e-6 months <br /> setup and teardown.
The single cable test with ¹12 wire was made with a different cable than used in the ¹12 multiple cable tests.
The AEP MGE number was the same on both, but the single cable obtained from Ohio Power stock while waiting on the cable shipment to arrive from Rockport Plant did not have the teflon wrap between the conductor and the insulation like all other cables tested.
The fire barrier was assembled according to the 3
M Company directions except for one variation.
Rather than screw the top on and off for each test, the top was attached with banding material.
This method was approved by the 3
M Company representative, Jack Tuzinski, who was present for a portion of testing.
VI.
APPENDIX AD Data Sheets B.
Cable Specifications C.
Insulation to Conductor Temperature Correction D.
Test Setup E.
Plot of Conductor Temperature vs.
Maximum Allowable Current AEP:NRC:0692DL Attachment 4
Page 6 of 23
CANTOR LABORATORY AMERICAN ELECTRIC POSER
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TEST MATERIAL:
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Page 10 of 23 I
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4 Page 11 of 23 TEST NO.
J. P. ~C CALLIH CVJ. SELL KEYED ig-3O GQ To a-iS-e3
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Cable Data 3TC ¹12 AWG for Single Tests 12 type use RHW E11134 (UL) 600 V
3TC ¹12 AWG for Multi le Cable Tests Pirelli Cable EN 12 AWG (cu) type use RHH or, RHW Service Cable XLP - Power Cable 600 V (UL) 3TC ¹10 AWG Pirelli Cable EM 1982 45 mils FR-XLP 10 AWG cu 600 V NsE 55-4806 3TC ¹2/0 AWG Anaconda S Durasheath XLP Power Cable Type use RHH or RHW 2/0 600 V (UL) 3TC 350 MCM Rome Cable 95 mils FR-XLP Power Cable 600 V 1982 350 NCN cu 3TC 750 MCM Anaconda S Durasheath XLP Power Cable Type use RHH or RHW 600 V (UL) 750 MCM cu.
CL-492 AEP:NRC:0692DL Attachment 4
Page 12 of 23
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Page 14 of 23
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Page 15 of 23
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Tf~MOCOUPLE INSTALLATIONS
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AIR SPACE MEASUREMENT PD CL"492 AEP:NRC:0692DL Altachment 4
Page 16 of 23 COMPLETE FIRE HARRIER INSTALLATION
FIRE BARRIER ELECTRICAL RACEWAY PROTECTION SYSTEM
~ ~
Genera'nstructions:
The Fire Barrier Electrical Raceway Protection System fs sfmplfstfc fn design and consists of three operations.
First, framing of the electrical raceway wfth a box system using Unfstrut; second, attaching the Fire Barrier Composite Sheet to the box frame; and third, applying the seam protection system.
Each operatfon follows basic desfgn principles explained below to assure one hour fire performance.
Box Frame Electrical Racewa 1.
Construct Unfstrut box frame around raceway using standard Unistrut fittings.
2.
Connect Unfstrut framework to raceway support system when possible.
3.
All fittings (Unistrut) must end up inside the box frame.
4.
Framework must be constructed so that all Fire Barrier Conposfte Sheet joints and edges end near a Unfstrut support.
5.
The Unfstrut allows tfe together of multfple Composite Sheet assuring joint performance under fire conditfons.
6.
For horizontal raceway
- systems, the box frame can rest on the raceway to give additional support to the protection system and to allow ease of construction.
7.
For vertical runs, the box frame can be constructed around the raceway as tight as construction methods will allow.
8.'o= frame can be constructed with a wall or floor as part of the system (the wall or floor must be rated as a mfnfmum one hour fire barrier).
Fire Barrier Com osite Sheet:
1.
Fire Barrier Composfte Sheet fs designed sfmflar to wall board material.
It can be cut, drilled, formed or punched into desired conffguratfons.
2.
The Fire Barrier Composfte Sheet is designed to be fnstalled with the foil side facing away fran the cable raceway.
3.
The sheet fs attached to the'nfstrut framework wfth self-tapping and self-drilling screws.
4.
These screws must end inside the Unfstrut channel, with no screws ending fns'ide the electrical raceway.
5.
Use only enough screws to hold the Composite Sheet in 'place.
Designed strength comes fran the 'screws used to hold on the edge and seam systems.
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LICHT 53OO-G2 GENERAL INSTRUCTIONS FIRE BARRIER ELECTRICAL RACEWAY PROTECTION SYSTE51
6.
All sheet edges and corners must be attached to a Unistrut channel.
7.
All sheet edges must jofn. together wftn a butt )oint allowing no more seam opening larger than I/8"'.
8.
All sheet corners must be overlapped.
9.
Seam jofnts over I/8" must be caulked with CP-25 Caulk.
Fire Barrfer Seam S stem:
1 All sheet connection pofnts (edges, corners) must be protected with the.Fire Barrier Seam System.
2.
The seam system utflfzes a dual lager approach; (I) Fire Barrier Hat M20A with alumfnum foil on one side; and (2) a restrafnfng wfre, )/2" welded hardware cloth.
3.
The seam materfal fs installed by laying the Hat H20A, with the Composite Sheet edge or corner at the center, onto the system, covering the Hat HZOA with the restraining wire and holding fn place with self-drillfng, self-tapping screws.
4.
Screws must end inside the Unfstrut channel and be spaced at 6" +
I" intervals down the center of the restraining systems.
5.
Seamfng systems detailed in drawfngs must be fol1owed.
Reference:
I.
Unfstrut General Engineering Cata1og g9 Unistrut Building Systems GTE Products Corp.
35005 Hfchfgan Ave. Mest Mayne, HI 48184 2.
Fire Barrfer Electrical Raceway Protection Systems Installatfon Details Fire Barrier Products 3H Center, Bldg. 225-4N St. Paul, HN 55144 l$5uK
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AEP:NRC:0692DL Attachment 4
Page 18 of 23 GENERAL INSTRUCTIONS FIRE BARRIER ELECTRICAL RACEMAY PROTECTION SYSTEH uo-products DivistoriQM 3M 5300-G2
EMBLY MATERIALS AND TOOLS RE UIRED terial s Fire Barrier Composite Sheet Fire Barrier Composfte Sheet Fire Barrier Composite Sheet Fire Barrier Hat H20A Fire Barrier Mat H20A Ffre Barrier Mat HZOA Fire Barrier Caulk CP-25 Fire Barrier Putty 303 Fire Barrier Cord 34 Bit Tip Self Drilling Screws rut System Restraining Mire Mashers
,~3M 8
'I 80-6101-1873-1 80-6101-1650-3 (new 80-6101-0778-3 (old 80-6101-1651-1 (new) 80-6101-0780-0 (old) 80-6101-1874-9 80-6101-1875-6 80-6101-2301-2 80-6100-9622-6 80-6100-9622-0 80-6101-2087-7 Oescrfotfon 41 x 36" 36" x 36" 36 x 24" 4
x 50'olls 24 x 30'olls 49 x 25'olls 10 oz. cartridge 1 gal. can 1400'oll 10 - 16 x 3/4",
5/16" head See 5300-01 1/2" etelded hardware cloth (.060" diameter) 5/8" x 1/4" Tool s su lied b customer Metal Brake Metal Shear Electric Screwdriver Mrenches Power Stud Driver Saber Saw Ruler Clamps, C-type Socket Set Staple Gun AgPtNRCt0692DL Attachment 4
page 19 of 23 O
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FIRE BARRIER MATERIALS AND ASSEMBLY EQUIPMENT
ll
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INSTALLATION OETAILS
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'l'lation Instructions l.
Assemble Vnistrut or engineering approved equivalent box frame on cable tray (see 5300-Tl and 5300-01-1).
2.
Cut Fire Barrier Composite Sheet to fit onto exterior of.box frame.
All corner seams must be constructed so that one Fire Barrier Sheet overlaps the other sheet (reference drawing 5300-S2).
3.
Attach Fire Barrier Composite Sheet to box frame.
Use 3/4" bit tip screws; use only enough screws to ho1d sheets in place.
4.
Cover all seams and edges with Fire Barrier Hat N2DA 4" wide as described in details 5300-Sl-l, 5300-S2-1, and 5300-SIA-I.
AEP: NRC: 0692DL Attachment 4
Page 21 of 23
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Strip of 'h" Nelded Hardware Cloth 4
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~/4 Fire Barrier Composite Sheet Foil Side Facing Outwardo op A2223 End Vie%
Flro Barrier Mat HROA Wth V" welded
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Page 22 of 23 Blt-Tip Self Drilling Screws Nith Rasher (6" -t Spacing)
Fire Barrier Composite Sheet NQYF Axe 88irirloir Composite Slhoet And Fhre Bsrr}er l8eR BROS Must Be Lssatelod Nith Atumhndtm Fol5 Sldo IFGchng Aerify From Protoctod item.
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ATTACHMENT 5 TO AEP:NRC:0692DL COMPARISON TABLES PROVIDING BASE INFORMATION REGARDING TRAYS AND CONDUITS, CABLE FULL LOAD AMPERESi AND COMPARISON OF CALCULATED AMPACITIES vs ICEA AMPACZTIES
TRAY¹ TRAY SIZE FIRE BARRIER 1AI-P1 12'W x6"D 1 HOUR RATED 1 HERMO-LAG CABLE NO CABLE TYPE CBL OD CBL.
OD SQ MODELLED AMPACITY ICEA AMPACITY MARGIN 8255R 3TC¹12CU 8174 R 3TC¹12CU 8177R 3TC¹12CU 8113R 3TC¹12CU 8119R 3TC¹12CU 8300R 3TC¹12CU 8304R 3TC¹12CU 8308R 3TC¹12CU 8311R 3TC¹12CU 8294R 3TC¹12CU 8026R 3TC¹12CU 8027R 3TC¹12CU 1623R 3TC¹12CU 1642R 4/C¹12CU 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.52 0.1024 0.1024 0.1024 0.1024 0.1024 0.1024 0.1024 0.1024 0.1024 0.1024 0.1024 0.1024 0.1024 0.2704 0.33 4.00 4.00 0.33 0.33 0.33 0.33 0.33 0.33 0.33 2.10 1.00 2.00 10.00 17.25 17.25 17.25 17.25 17.25 17.25 17.25 17.25 17.25 17.25 17.25 17.25 17.25 18.87 18.01 18.01 18.01 18.01 18.01 18.01 18.01 18.01 18.01 18.01 18.01 18.01 18.01 25.35 98.17 77.79 77.79 98.17 98.17 98.17 98.17 98.17 98.1?
98.17 88.34 94.45 88.90 60.55 2536 R 3TC¹8AL 0.60 0.36 25.00 28.91 41.83 40.23 9086R 3TC¹12CU 9092R 3TC¹12CU 9645R 3TC¹12CU 0.32 0.32 0.32 0.1024 0.1024 0.1024 1.60 1.60 2.90 17.25 17.25 17.25 18.01 18.01 18.01 91.12 91.12 83.90 8755RH 3TC¹6AL 0.69 0.4761 44.00 46.31 60.64 27.44 80083R 3TC¹12CU 28765R 3 1/C 4/OCU 0.32 0.1024 3.48 SPARE 17.25 18.01 80.68 SUM OD SQ IN:
DEPTH OF FILL:
ACTUAL% TRAYFILL:
- ICEA AMPACITY BASED ON % TRAYFILL:
2.8473 0.237 3.95 10.00 ACTUALWATTS/ FT LOWEST MODELLEDWATTS/ FT 12.18 31.41 AEP:NRC:0692DL Page 1 of 10
~ ~
TRAY¹ TRAYSIZE FIRE BARRIER 1AI-P2 12'W x6"D 1 HOUR RATED THERMO-LAG CABLE NO CABLE TYPE CBL CBL.
OD OD SQ FtA MODELLED AMPACITY ICEA AMPACITY MARGIN 8116G 8119G 8185G 8194G 8197G 8250G 8300G 8304G 8308G 8311G 3TC¹12CU 3TC¹12CU 3TC¹12CU 3TC¹12CU 3TC¹12CU 3TC¹12CU 3TC¹12CU 3TC¹12CU 3TC¹12CU 3TC¹12CU 0.32 0.1024 0.32 0.1024 0.32 0.1024 0.32 0.1024 0.32 0.1024 0.32 0.1024 0.32 0.1024 0.32 0.1024 0.32 0.1024 0.32 0.1024 0.33 0.33 0.33 3.20 0.33 0.33 0.33 0.33 0.33 0.33 17.58 17.58 17.58 17.58 17.58 17.58 17.58 17.58 17.58 17.58 17.65 98.13 17.65 98.13 17.65 93.13 17.65 81.87 17.65 98.13 17.65 98.13 17.65 98.13 17.65 98.13 17.65 98.13 17.65 98.13 8270G 2978G 2559G 3TC¹12CU 3TC¹6AL 3TC¹6AL 0.32 0.1024 0.70 SPARE SPARE 17.58 17.65 96.03 8756GH 3TC350MCM AL 1.9 3.61 150.80 236.52 291 48.18 8751GH 8753GH 3TC¹6AL 3TC¹2AL 0.69 0.4761 0.93 0.8649 15.50 49.40 45.53 59.42 73.91 73.24 125.98 60.79 8755GH 1500G 3TC¹6AL 3TC 2/0 AL 0.69 0.4761 1.27 1.6129 37.80 50.30 45.53 121.34 59.42 36.39 148 66.01 8.1664 0.6805 11.34 SUM OD SQ IN DEPTH OF FILL ACTUAL% TRAYFILL ACTUALWATTS/ FT 8 ICEAAMPACITYBASIS LOWEST MODELLEDWATTS/ FT 3TC ¹ 2/0 AL8, 3TC ¹ 350 MCMALampacities taken from ICEA P-54-440 table 3.21.
16.87 41.74 AEP:NRC:0692DL Page 2 of 10
TRAY¹ 1AI-P4 TRAYSIZE 12'W x6"D FIRE BARRIER 1 HOUR RATED THERMO-LAG CABLE CABLE NO TYPE 8116G 3TC¹12CU 8119 G 3TC¹12CU CBL OD 0.32 0.32 CBL.
OD SQ 0.1024 0.1Vl4 0.40 0.40 MOOELLEO AMPACITY 27 27 ICEA AMPACITY 29.04 29.04 MARGIN 98.62 98.62 2560G 3TC¹6AL 0.69 0.4761 -
60 00 60.27 60.64 SUM OD SQ IN 0.6809 DEPTH OF FILL 0.0567 ACTUAL% TRAYFILL 0.95 ACTUALWATTSI FT
'CEA AMPACITY 10.00 LOWEST MODELLEDWATTS/ FT BASED ON % TRAYFILLEXCEPT 3TC¹ 12 CU BASED ON 4.00 % FILL NOTE: THIS IS AWELDING RECEPTICLE SWITCH RATING. CONNECTED LOAD IS SMALLERAND SHORT TIME RATING 9.15 17.55 AEP:NRC:0692DL Page 3 of 10
TRAY¹ TRAYSIZE FIRE BARRIER 1AZ-P8 12'W x6"D 1 HOUR RATED THERMO-LAG CABLE NO CABLE TYPE CBL OD CBL.
OD SQ MODELLED AMPACITY ICEA AMPACITY MARGIN 1470R 3TC¹12CU 0.32 1469 R 3TC¹12CU 0.32 0.1024 3.80 0.1024 16.00 21.58 21.58 29.04 86.91 29.04 44.90 8067R 3TC¹12CU 0.32 8024R 3TC¹12CU 0.32 8187R 3TC¹12CU 0.32 8026R 3TC¹12CU 0.32 8027R 3TC¹12CU 0.32 0.1024 0.1024 0.1024 0.1024 0.1024 1.20 1.10 8.48 2.70 1.20 21.58 21.58 21.58 21.58 21.58 29.04 95.87 29.04 96.21 29.04 70.80 29.04 90.70 29.04 95.87 valve load
- 2349R 3TC¹12CU 0.32 1476R 3TC¹12CU CU 1488 R 3TC¹12CU 0.32 1991R 3TC¹2AL 0.93 0.1024 T AND 0.1024 0.8649 1.90 RAY 3.80 60.00 TAPED IN T 21.58 29.04 93.46 29.04 86.91 21.58 90.67 128.58 53.34 revised connected load 16666R-2 3TC¹12CU 0.32 0.1024 2.50 21.58 29.04 91.39 SUM OD SQ IN 1.8889 DEPTH OF FILL 0.1574 ACTUAL% TRAYFILL 2.62 ACTUALWATTSI FT
- ICEA AMPACITY 10.00 LOWEST MODELLEDWAT1S I FT BASED ON % TRAYFILLEXCEPT 3TC¹ 12 CU BASED ON 4.00 % FILL Refer to section 2.4.7 for valve load considerations.
9.7 36.22 AEP:NRC:0692DL Page 4 of 10
TRAY¹ 1AZ-P9 TRAYSIZE 12'W x6"D FIRE BARRIER 1 HOUR RATED ThERMO-LAG CABLE NO CABLE TYPE CBL CBL.
OD OD SQ FLA MODELLED AMPACITY ICEA
'MPACITY MARGIN 8113R 8119R 1623R 1642R 8026R 8027R 2349R 9217R 9221R 1440R 8753RH 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 4/C¹12CU 0.52 0.2704 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹2AL 0.93 0.8649 3TC¹4AL 0.8 0.64 0.71 0.71 2.60 6.40 2.70 1.20 1.90 0.17 0.17 60.00 53.00 20.86 20.86 20.86 22.72 20.86 20.86 20.86 20.86 20.86 86.52 63.47 29.04 97.56 29.04 97.56 29.04 91.05 25.35 74.75 29.04 90.70 29.04 95.87 29.04 93.46 29.04 99.41 29.04 99.41 128.58 53.34 88.68 40.23 SUM OD SQ IN 2.5945 DEPTH OF FILL 0.2162 ACTUAL% TRAYFILL 3.60 ACTUALWATTS/ FT
- ICEA AMPACITY 10.00 LOWEST MODELLEDWATTS / FT BASED ON % TRAYFILLEXCEPT 3TC ¹ 12 CU BASED ON 4.00 % FILL 8.57 38.63 AEP:NRC:0692DL Page 5 of 10
TRAY¹ TRAYSIZE FIRE BARRIER 1A-P20 12'W x6"D 1 HOUR RATED THERMO-LAG CABLE NO CABLE TYPE CBL CBL.
OD OD SQ FlA MODELLED AMPACITY ICEA
'MPACITY MARGIN 8113R 8119R 1623R 1642R 8026R 8027R 8294R 2349R 3249R 1509R 2353R 2354R 2355R 2356R 8984R 8987R 1656R 9217R 9221R 2348R 2962R 2361R 1440R 8753RH 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 4/C¹12CU 0.54 0.2916 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹6AL 0.69 0.4761 3TC¹12CU 4/C¹12CU 0.52 0.2704 4/C¹12CU 0.54 0.2916 3TC¹12CU 0.32 0.1024 3TC¹4AL 0.8 0.64 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹2AL 0.93 0.8649 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹6AL 0.69 0.4761 3TC¹2AL 0.93 0.8649 3TC¹4AL 0.8 0.64 0.71 0.71 2.60 6.40 2.70 1.20 0.71 1.90 12.70 SPARE 16.00 16.00 1.50 36.00 15.60 15.60 60.00 0.71 0.71 6.80 6.80 31.40 60 49 16.67 19.06 96.27 16.67 19.06 96.27 16.67 19.06 86.36 16.67 19 06 92 13 51.16 88.68 59.40 16.67 19.06 18.15 16.67 19.06 18.15 69.55 128.58 53.34 16.67 19.06 96.27 16.67 19.06 96.27 16.67 19.06 64.32 16.67 19.06 64.32 37.68 60.64 48.22 69.55 128.58 53.34 51.16 88.68 44.75 18.25 26.83 76.15 16.67 19.06 85.83 16.67 19.06 93.70 16.67 19.06 96.27 16.67 19.06 90.03 37.68 64.18 80.21 18.25 26.83 40.37 18.25 26.83 40.37 SUM OD SQ IN 5.942 DEPTH OF FILL 0.4952 ACTUAL% TRAYFILL 8.25 ICEA AMPCTY% FILL 9.00 Except 10.00% for 3TC ¹2 AL 8 3TC ¹4 AL.
ACTUALWATTS/ FT LOWEST MODELLEDWATTS/ FT 25.18 56.8 AEP:NRC:0692DL Page 6 of 10
TRAY¹ 2AZ-P3 TRAYSIZE 12'W x6"D FIRE BARRIER 1 HOUR RATED THERMO-LAG CABLE NO CABLE TYPE CBL OD CBL.
OD SQ MODELLED AMPACITY ICEA AMPACITY MARGIN 8332G 3TC¹12CU 9665G 3TC¹12CU 1970G 4/C¹12CU 9696G 3TC¹12CU 0.32 0.52 0.1".>4 0.2704 3.80 SPARE 6.70 SPARE 18.15 19.06 19.22 26.83 80.06 75.03 3001G 3TC¹2CU 1.08 1.1664 1.38 100.13 109 98.73 13945G 3TC¹2AL 3010G 3TC¹12CU 3012G 4/C¹12CU 3013G 4/C¹12CU 8987G 3TC¹12CU 3014G 3TC¹6AL 9965G 4/C¹12CU 9958G 3TC¹12CU 8645G 3TC¹12CU 0.93 0.32 0.52 0.52 0.32 0.69 0.52 0.32 0.32 0.8649 0.1024 0.2704 0.2704 0.1024 0.4761 0.2704 0.1024 0."024 73.00 1.50 16.00 16.00 16.00 36.00 7.9 1.00 2.90 18.15 19.06 73.22 136.08 18.15 19.06 19.22 26.83 19.22 26.83 18.15 19.06 39.8 64.18 19.22 26.83 18.15 19.06 46.36 92.13 40.37 40.37 16.05 43.91 70.56 94.75 84.78 8138G 3TC¹12CU 8204G 3TC¹12CU 8317G 3TC¹12CU 0.32 0.32 0.1024 0.1024 CONTROL 18.00 3.80 18.15 19.06 18.15 19.06 5.56 80.06 valve load
"'756GH 3TC¹2/OAL 8050GH 7/C¹12CU 8053GH 3TC¹8CU 1.27 0.72 1.6129 0.5184 96.40 CONTROL 12.89 121.34 40.95 148 68.2 34.86 81.10 SUM OD SQ IN 6.4371 DEPTH OF FILL 0.5364 ACTUAL% TRAY FILL 8.94 ACTUALWATTS/ FT
- ICEA AMPACITY 9.00 LOWEST MODELLEDWATTS/ FT BASED ON % TRAYFILL Refer to section 2.4.7 for valve load considerations.
3TC¹2/OAL and 3TC¹2 CU ampacities taken from lCEA P-54~0 table 3.21 8 3.6 resp.
22.63 51.32 AEP:NRC:0692DL Page 7 of10
t
TRAY¹ 2A-P2 TRAYSIZE 12'W x6"D FIRE BARRIER 1 HOUR RATED THERMO-LAG CABLE NO CABLE TYPE CBL CBL.
OD OD SQ MODELLED AMPACITY ICEA AMPACITY MARGIN 3010G 3012G 3013G 8987G 9217G 3014G 8984G 3TC¹12CU 0.32 0.1024 4/C¹12CU 0.52 0.2704 4/C¹12CU 0.52 0.2704 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹6CU 0.85 0.7225 3TC¹10CU 0.46 0.2116 1.75 16.00
=16.00 16.00 0.71 36.00 15.60 22.76 29.04 44.90 29.04 97.56 95.92 62.47 22.76 71.23 34.00 32.65 52.22 22.76 29.04 93.97 24.72 25.35 36.88 24.72 25.35 36.88 SUM OD SQ IN 1.7821 DEPTH OF FILL 0.1485 ACTUAL% TRAY FILL 2.48
- ICEA AMPACITY 10.00 BASED ON % TRAYFILL ACTUAI WATTS/ FT LOWEST MODELLEDWATTS/ FT 8.79 30.44 AEP:NRC:0692DL Page 8 of10
TRAY¹ 2AZ-P10 TRAYSIZE 12'W x6"D FIRE BARRIER 1 HOUR RATED TI ERMO-LAG CABLE NO CABLE CBL CBL.
TYPE OD OD SQ MOOELLEO AMPACITY ICEA ~
AMPACITY MARGIN 8755RH 8753RH 8756RH 1500R 8206R 9962R 9951R 9901R 9908R 16666 R 8327R 3TC¹2AL 0.93 0.8649 3TC¹4AL 0.8 0.64 3TC 2/OAL 1.27 1.6129 3TC¹2AL 0.93 0.8649 3TC¹12CU 0.32 0.1024 3TC¹12CU 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 50.30 50.30 100.50 50.30 18.00 SPARE 0.80 2.99 2.99 2.14 2.99 120.86 148 32.09 73.61 128.58 60.88 17.67 18.01 0.06 17.67 18.01 95.56 17.67 18.01 83.40 17.67 18.01 83.40 17.67 18.01 88.12 17.67 18.01 83.40 73.61 128.58 60.88 54.17 88.68 43.28 valve load-8024R 3TC¹12CU 0.32 0.1024 1.00 17.67 18.01 94.45 2481R 8274R 9221R 9217R 8030R 8560R 3TC¹2CU 1.08 1.1664 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 3TC¹12CU 0.32 0.1024 1.38 2.20 0.71 0.71 1.34 3.29 100.65 109 98.73 17.67 18.01 87.78 17.67 18.01 96.06 17.67 18.01 96.06 17.67 18.01 92.56 17.67 18.01 81.73 SUM OD SQ IN 6.3779 DEPTH OF FILL 0.5315 ACTUAL% TRAYFILL 8.86 ACTUALWATTS/ FT ICEA AMPACITY 10.00 LOWEST MODELLEDWATTS/ FT BASED ON % TRAYFILL
" Refer to section 2.4.7 forvalve load considerations.
3TC ¹ 2/0 ALand 3TC ¹2 CU ampacities taken from ICEA P-54-440 table 3.21 8 3.6 resp.
16.52 51.03 AEP:NRC:0692DL Page 9of10
CONDUITS ALLCQNDUITS ARE PROTECTED WITH 1 HOUR RATED THERMO-LAGAND INDIVIDUALLYWRAPPED CABLE NUMBER 8003 R-1 8004 R-1 8004 G-1 CONDUIT SIZE CABLE SIZE 3TC¹2AL-3TC¹2AL*
3TC¹2AL'7.5 64.6 64.6 3.32 4.2 ACTUAL WATTS/FT MODELLED WATTS/FT 9.94 9.94 9.94 AMPACITY 99.45 99.45 99.45 112 112 112 49 42 IPCEA ¹P-46%26/
NEC AMPACITY* % MARGIN 8026 R-1 8505-R1 8506 R-1 8003 R-2 8004 R-2 8004 G-2 8154 G-2 8155G-2 8744 R-2 1/2 3TC¹12CU 3TC¹12CU 3TC¹12CU 3TC¹2AL
- 3TC¹2AL" 3TC¹2AL'"
3TC¹12CU 3TC¹12CU 3TC¹2AL
- 2.7 2.6 2.6 57.5 64.6 59 2.6 2.6 71.9 0.045 0.042 0.042 3.32 4.2 3.5 0.042 0.042 5.2 24.38 26.01 26.01 99.45 99.45 99.45 26.01 26.01 95.25 3.68 4.19 4.19 9.94 9.94 9.94 4.19 4.19 9.12 27.3 27.3 27.3 112 112 112 27.3 27.3 112 90 90 90 49 42 47 90 90 36
% MARGIN=( ( Conventional Ampacity - FLA)/ Conventional Amapcity) *100
- 5KVCABLE
'IPCEA PUB.¹ P-46426 PAGE 264 TABLES USED FOR ¹ 8 AND LARGER CABLES.
NEC 310-16 TABLEUSED FOR 3 TC ¹ 12 CU CABLE.
NOTE: THIS TABLE IS PREPARED USING REV.1 OF OUR DOCUMENTATIONDATED 7/26/84.
REVISION REFLECTS CHANGE IN CONDUIT PARAMETERS. CHANGE IN CONDUIT PARAMETERS DID NOT CHANGE % MARGIN.
AEP:NRC:0692DL Attachment 5
Page 10 of 10
r~
ATTACHMENT 6 TO AEP:NRC:0692DL l
AMPACITY vs DEPTH OF FILL PLOT FOR 412 AWG COPPER CABLE IN TRAY
aa p Calculation tn su nrt thc icrifi(atinn of lhc CNP Therm;ll Model a lied to condui Test (Fill WIdth)
Calbll'. I ype (DialnlUICI')
3TCli(2AL SHIELDED (1.14")
Test Lo;lding (A) 72.0 No of Rails (Contributing Width) 1 (1.14")
Highest Measured Temperature
('C) 65.0 Predicted Ampacity (A) 62.7 Predicted Watts/Ft (w/ft)
'redicted values are bllscd on thc highest measured tcmpcrature as the conductor temperature.
Calculated heat gcncratcd pcr conductor by rcsistivc heating = k of conductors x I x R~~
where I = connected loald (A)
R,,
= AC resist;lncc (0/ft)
Applied to thc modelling of Test 5 using thc predict"d ampacity, thc modelled heat gencratcd is:
3TC@2AL = 3 x 62.7~ x 30.9E-5
= 3.64 W/ft Applied to thc actual loading in Test 5 above, thc total calculated heat gcncrated is:
3TCll(2AL = 3 x 72~ x 30.9E-S
= 4.8 lV/ft Rcsistancc has bccn adjusted to corrcspond to thc rcspcctive measured temperature listed above A comparison of thc predicted heat gcncratcd (3.64 W/ft) and the actual heat generated (4.8 W/ft) for the given test case above dcmonstratcs that thc CNP thermal m( Jelling approach is conservative.
This is considcrcd conscrvativc since this cstablishcs thc "limit"I'or which other identical raceways can be compared to for accept:lncc (i.c. - those identical candidate raceways must have a total heat value less than this limit thcrcby ensuring th lt thc heat gcncratcd is less than thc heat corresponding to a known tcmpcraturc).
AEP:NRC:0692DL Page 3 of 4
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