ML20037A312
| ML20037A312 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 02/28/1978 |
| From: | Abrams M CONSTRUCTION TECHNOLOGY LABORATORIES, INC. |
| To: | |
| Shared Package | |
| ML19289A139 | List: |
| References | |
| 1042-01, 1042-1, NUDOCS 7908270388 | |
| Download: ML20037A312 (18) | |
Text
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QUALIFICATION, FIRE AND HOSE STREAM TESTS BISCO TEST NO. 1042-01 BY:
M. S. Abrams DATE:
February 1978 A Research Report For Brand Industrial Services, Inc.
1420 Renaissance Drive Park Ridge, Illinois 60068 Submitted by
~
CONSTRUCTION TECHNOLOGY LABORATORIES 5420 Old Orchard Skokie, Illinois 60077 7908270396.
QUALIFICATION, FIRE AND HOSE STREAM TESTS FOR BRAND INDUSTRIAL SERVICES, INC. (BISCO)
Park Ridge, Illinois 60068
.SINgPSIS This report describes the fabrication and test pro-cedures, and lists results of fire and hose stream tests.
The tests were conducted on five penetration seal systems dis-tributed in a 30-in. x 30-in. area of a 48-in. x 48-in.
concrete frame specimen 12-in. thick.
The penetration seal systems were Dow Corning 3-6548 silicone foam installed by Brand Industrial Services, Inc. (BISCO).
This material surrrounded cable tray, conduits with electrical conductors, and was contained in conduits with electrical conductors.
A nominal 12-in. thickness of the foam material was used in every Case.
The tests were conducted to evaluate the performance of the penetracion seal systems.
The specimen was exposed to the standard fire test of ASTM Designation:
E119* and a spray-type hose stream test.
No passage of flame was noted at any of the five penetration seal systems af ter three hours of exposure to the fire.
Also, limiting temparature increases were not reached after 3 hr of exposure at locations where temperature measurements of the unexposed surface of the foam were made.
The highest unexposed surface temperature reached was 200F, while the average of unexposed temperature l
measurements was 150F.
No water from the hose stream j
penetrated the seal systems.
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- ASTM Designation:
E119-76, Standard Methods of Fire Tests of Building Construction and Materials, American Society for Test-ing and Materials, Philadelphia, Pa.
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GENERAL Procedures described in this report defines methods used to perform fire barrier testing on a proto-type fire barrier conf.iguration representative of conditions at Donald C.
Cook Nuclear Generating Station.
The fire barrier test provides a means for determining the validity and integrity of procedures and materials used at the D. C. Cook Generating Plant of fire barriers rated for three hour protection.
The fire barrier test was performed on a concrete test slab containing the following penetrations:
1.
Three solid cable trays with covers containing control cable to 40 percent fill.
2.
One cable tray without cover containing control cable to 40 percent fill.
3.
One conduit containing smaller conduit to 40 per-cent fill.
4.
One conduit containing power cable to 40 percent fill.
5.
One conduit containing control cable to 40 percent fill.
The test assembly was exposed to the fire in a hori-zontal (floor) position.
This is generally more severe than a vertical (wall) fire exposure.
The test assembly was subjected to a hose stream test subsequent to the 3-hr fire exposure period.., _ _. ~... _. _ _._. ___.-_.. -
I The fire and hose stream test were performed at the Concrete Technology Laboratories, a Division of Portland Cement Association, 5420 Old Orchard Road, Skoki'e, Illinois 60077.
The tests were witnessed by representatives of the American Electric Power Company, Nuclear Regulatory Agency, Gage, Babcock and Company, Brand Industrial Services, Inc., and Con-crete Technology Laboratories.
FABRICATION OF TEST ASSEMBLY Details of the concrete test frame are shown in Fig.
1.
The 48-in. x 48-in. normal weight concrete specimen contained 30-in. x 30-in. square opening and was 12-in. thick.
After seven days of moist-curing under damp burlap, the specimen was dried in a heated kiln at a temperature of 140F to a moisture content suitable for test.
Penetration Seal Syste_ms Penetrating items were mounted in the 30-in. x 30-in.
I opening of the concrete test slab by BISCO personnel.
They were positioned at locations shown in Fig. 1.
All conduits and cable trays were rigidly supported on the unexposed side (side away froa the fire) as shown in Fig. 2.
Cable Trays 1 and 2 - These trays were mounted to-1 gether with splice plates located at either extreme end of the cable trays such that 1 ft of the cable trays extended below the concrete slab and 3 f t extended above the concrete slab.
The cable trays were mounted tightly against the concrete opening in the test slab in the location shown in Fig. 1.
Two,,._.
steel plates, equal in thickness to two splice plates were located between Cable Trays 1 and 2.
They were positioned such that they were flush with the seal face both on the top side and the bottom side of the concrete test slab.
The purpose of these plates was to provide a barrier to the passage of any gases or flames.
Cable Tray 1 was a solid bottom trcy with a cover.
Cable Tray 1 was a solid bottom tray without a cover.
Both cable trays were filled to 40 percent of the cross sectional area with control cable, as chown in Fig. 3.
Cable Trays 3 and 4 - These cable trays were fastened together using cable tray splice plates located at either end of the cable trays.
Cable Trays 3 and 4 were located in the test slab in the position shown in Fig. 1, and extended 1-ft below and 3-ft above the test slab.
The cable trays were installed with a 1/2-in. gap between the cable trays and the concrete opening in the test slab.
The cable trays were filled to 40 percent of the cross sectional area with control cable and covered with a standard cable tray cover.
A continuous space equivalent to the thickness of two splice plates was left between Cable Trays 3 and 4.
No metal filler was used to seal the space at or near the fire barrier area.
Conduit No. 5 - A 4-in. diameter steel conduit designated No. 5 was located in the position shown in Fig. 1.
It extended 1-ft below and 6-in. above the concrete test slab.
Conduit 5 was filled with varying sizes of smaller conduit up to a maximum of 40 percent of the conduit area.
Each smaller conduit contained onc or more control cables..____ -
Conduit No. 6 - The position of 4-in. diameter steel conduit designated as No. 6 is shown in Fig.1.
It also extended 1-f t below the bottom and 6-in. above the top of the concrete test slab.
It was filled to 40 percent of the cross sectional area with power cable.
Conduit No. 7 '- A 4-in. diameter steel conduit designated No. 7 was positioned in the test slab as shown in Fig. 1.
Conduit 7 extended 1-ft below the bottom and 3-ft above the top of the concrete test slab.
It was filled to 40 percent of the cross sectional area with control cable.
Damming and Foaming Details Dow Corning 3-6548 silicone foam was installed in the test assembly to a 12-in. depth in every instance in a manner consistent with BISCO procedure 207-IP.
The foam was installed by BISCO personnel at the Concrete Technology Laboratories while the slab was in a vertical (wall) position.
The test assembly was dammed with Dow Chemical Company Ethafoam or Dow Chemical Company Styrofoam, as shown in Fig.
4.
This damming material was removed prior to initiation of the fire test.
In those instances where the damming material had to be left in place such as in the steel conduits, the damming material used was John Manville's Cerafiber.
It was installed on the fire side of the test assembly such that the silicone foam material was contained in the 12-in. distance between the top and bottom sides of the concrete test slab, except as described for steel Conduit 7.
Conduit 7 was __ _ _, _ _ _ _., _ _ _ _ _. _. _ _.. -.
dammed with Cerafiber in a manner such that the silicone foam filled the conduit area for a distance of 12 in. from the top of the conduit 3 ft above the test slab.
Cable trays 3 and 4 were sealed by the installation of 9 in. of compacted John Manville's Cerafiber in the 1/2-in. gap between the cable trays' and the concrete slab wall as shown in Fig. 1.
Dow Corning RTV-732 silicone caulk was installed over the ceramic fiber to a depth of 1-in. and was flush with the top edge of the concrete test frame.
The joint between Cable Trays 1 and 2 and between Cable Trays 3 and 4 was caulked with Dow Corning RTV-732 silicone caulk on both the top and bottom sides of the cable i
trays on the unexposed side of the concrete test assembly.
The silicone caulk began at the surface of the silicone seal and extended upward for a length of 12-in.
The interface between Cable Tray 1 and the concrete slab was sealed with Dow Corning RTV-732 silicone caulk on the unexposed side of the test assembly.
Cable Tray 2 was sealed i
with the same material between the cable tray and the concrete l
test assembly on the exposed side.
The completely sealed test assembly was allowed to air cure for a minimum of twenty hours prior to the fire test.
Figure 5 shows the test assembly prior to placement on the furnace.
FIRE TEST The test assembly containing the penetration seal systems was subjected to a 3-hr fire exposure on the small slab furnace at the Concrete Technology Laboratories.
The specimen was placed on the furnace in a horizontal position as shown in Fig. 6.
No gravity loads were applied during the test.
1 Fire exposure followed the standard time temperature I1)*
relationship described in ASTM Designation:
E119 Furnace temperatures, as measured by two thermocouples located in the furnace 12-in. below the test slab, were monitored throughout the 3-hr test period.
These temperatures and the variations from those of the Standard ASTM Designation:
E119 Time Temperature Curve are shown in Table 1.
Temperatures of the unexposed surface (side away from the fire) of the silicone seal material were measured using procedures described in ASTM Designation:
E119.
Measurements were obtained at the four points shown in Fig. 1.
Unexposed surface' temperatures are given in Table 2.
A maximum temperature of 200F was obtained at the end of the 3-hr exposure period.
The average of the four temperature measure-ments at the end of the 3-br period was 150F.
HOSE STREAM TESTS After the 3-hr fire exposure period the test assembly was moved from the furnace as shown in Fig. 7.
The specimen l
- Superscript number in parenthesis designate references.
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was placed in a vertical position on a cart and moved outside the laboratory for the hose stream test.
Figure 8 shows the specimen just prior to application of the hose stream.
The hose stream test consisted of a discharge from a 1-1/2-in.
water spray nozzle with a 30 degree discharge angle pattern and with a minimum pressurd of 75 psi at the base of the nozzle.
The stream was directed at the exposed side of the te't slab s
from a distance of 10 ft for 16 seconds, which is in excess of 4
the 2-1/2 minutes required per 100 sq ft of specimen.
Application of the hose stream to the specimen is shown in Fig.
9.
The heavy smoke and vapor caused by the impingement of the water on the hot surface obscured the specimen.
The unexposed surface of the test assembly was in-spected after the application of the hose stream as shown in Fig. 10.
None of the silicone foam fire barrier material was dislodged, and water did not penetrate any of the seal systems.
Figure 11 shows the exposed side of the specimen af ter the fire and hose stream tests.
The depth of charring or burn-ing away of the silicone foam fire barrier material range from 5-1/4 in. to 10-1/2 in.
A sample of the material was removed for test.
SUMMARY
The test assembly consisted of a concrete slab 48-in.
x 48-in. x 12-in. thick with a 30-in. x 30-in. opening in the center of the specimen.
The opening contained a total of five 1
b --.- - -.
penetration seal systems.
These systems consisted of Dow Corning 3-6548 silicone foam installed by Brand Industrial i
Services, Inc. (BISCO).
Foam material surrounded the cable trays, steel conduits with c..ectrical conductors, and was contained in steel conduits with electrical conductors.
A
^
nominal 12-in. thicknes's of the silicone foam was used in each of the penetration seal systems.
Pertinent test results are listed:
1.
No passage of flame occurred at any of the pene-tration systems during the 3-br fire test period.
2.
The limiting end-point temperature of 402F (3 5F,
+ 77F at start of test), as defined in ASTM I1)
Designation:
E119
, on the unexposed surfaces of l
the foam was not reached at any of the four locations at the end of the 3-hr fire test.
The maximum temperature reached was 200F.
3.
There was no dislodgment of the silicone foam material during the hose stream test.
All of the five penetration seal systems withstood the hose stream test successfully.
REFERENCES 1.
ASTM Designation:
E119-76, Standard Methods of Fire Tests of Building Construction and Materials, American Society for Testing and Materials, Philadelphia, Pa. _ _ _.. _ _. _, _... _.. _ _ _.. _.,. ~, _. _ _ _.. _. _... -.. _ _ _ _. _ _. _. _. _. _ _. _ _. -,, -... _.
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Test Showing Charred Foam.
Sample of Foam l
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TABLE 1 - FURNACE ATMOSPHERE TEMPERATURES AND VARIATIONS Test Time Furnace ASTM E119 Variation from Er: Min Tem'p.,
Temp.,
ASTM Temp.,
F F
F 0:10 1330 1300
+30 0:20 1465 1462
+3 0:30 1559 1550
+9 0:40 1625 1613
+12 0:50 1659 1661
-2 1:00 1705 1700
+5 1:10 17'?
1735
-3 1:20 1719 1765
-6 1:30 1795 1792
+3 1:40 1818 1815
+3 1:50 1855 1835
+20 2:00 1860 1850
+10 2:10 1865 1862
+3 2:20 1875 1875 0
2:30 1890 1888
+2 2:40 1905 1900
+5 2:50 1920 1912
+8 3:00 1939 1925
+14 l
l
^
O TABLE 2 - UNEXPOSED SURFACE TEMPERATURES OF FOAM Temperature F Test Time Hr: Min T/C 1 T/C 2 T/C 3 T/C 4 Average A
78 78 76 76 77 0:10 78 78 76 76 77 0:20 78 78 77 76 78 0:30 78 78 77 80 78 0:40 78 78 77 81 79 0:50 78 78 79 84 80 1:00 80 78 81 86 81 1:10 80 78 82 90 83 1:20 82 80 87 91 85 1:30 86 82 96 96 90 1:40 90' 85 107 100 96 1:50 93 87 115 109 101 2:00 96 90 127 115 107 2:10 100 95 135 120 113 2:20 102 100 150 128 12 0 2:30 106 102 160 136 126 2:40 113 107 173 143 134 2:50 115 113 180 153 140 3:00 119 116 200 163 150 1See Figure 1 for thermocouple (T/C) locations.
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