ML19256E264

Affidavit Attesting That June 1979 Fire Protective Cable Tray Fire Test Rept Prepared by Ms Abrams.Cable Circuit Continuity & Continuous Svc Temp Maintained Adequately

ML19256E264
Person / Time
Site:	Zimmer
Issue date:	09/21/1979
From:	Abrams M CINCINNATI GAS & ELECTRIC CO., PORTLAND CEMENT ASSOCIATION
To:
Shared Package
ML19256E248	List: ML19256E247 ML19256E254 ML19256E259 ML19256E260 ML19256E264 ML19256E267
References
NUDOCS 7911020033
Download: ML19256E264 (4)

Text

.

STATE OF ILLINOIS )

) SS.

COOK COUNTY )

AFFIDAVIT OF MELVIN S. ABRAMS MELVIN S. ABRAMS, being first duly sworn according to law comes forward and states:

1. My name is Melvin S. Abrams. I am employed as Director, Fire Research Department, Portland Cement Associa-tion at the Construction Technology Laboratories located in Skokie, Illinois.

2. I received a Bachelor of Science Degree in Mathematics from Illinois Institute of Technology in 1955. In 1958 I took graduate courses in the field of mechanics. From 1949 to the present time, I have been employed by the Portland Cement Association. For the past 20 years, I have been a member of the Fire Research Section and have managed the section since 1970. In this position I have carried out a number of fire test research programs. During the_past 10 _

years, an important part of my work has been the inspection, evaluation and recommendations for repair of numerous fire '

damaged structures, including nuclear facilities. I mm a member of the American Society of Testing and Materials, the American Concrete Institute and the National Fire Protection Association and am a member of several committees in these -

i,7i.E [3 kk-

organizations dealing with fire test methods, fire resistance and fire protection.

3. In my position as Director of the Fire Research Department, I directed and witnessed the fire protective cable tray fire test to evaluate the performance of thermal insulation material as a fire shield to protect electrical continuity of cables which was sponsored in part by The Cincinnati Gas & Electric Company, Dayton Power and Light Company and Columbus and Southern Ohio Electric Company. I prepared the resulting " Fire Protective Cable Tray Fire Test Report" ("CTL Report") dated June 1979. The materials utilized, the test equipment, the installation of the specimens in the furnace, the conduct of the test, the test results, including observations during and after the test, are com-pletely described in the Rev:rt. This Report is true and correct to the best of my knowledge, information and belief, and I incorporate it into this affidavit by reference.

4. In summary, the following are my conclusions applicable to the present contenticn regarding the cable trays insulated with three one-inch layers of Kaowcol which were sEbjected to a fire exposure corresponding to ASTM designation E119-79:

1. Wrapping cable trays with three 1-in.

layers of Kaowool blanket thermal in-sulation protected the circuit continuity

_3_

of cables in the trays for 94 min. No short circuits were indicated on the light panel or by meggering before that tLme.

2. No short circuits occurred at a cable jacket temperature of 200C (392F), which is considered as the maximun con-tineJus service temperature for maintaining continuity of this type of cable jacketing.

3. Cable Tray 1 was removed from the furnace 30 min. after the end of the test. At this time, temperatures of the cables had increased about 50F over those at end of test. Cables were inspected visually, and it was determined that no damage occurred to cable jacketing material.

4. Tray 4 was removed from the furnace

' ~

about 3 1/2 hr. after the test was terminated. Temperatures of the cables continued to rise from 100 to 200F for about 1 1/2 hr. after the test was terminated. When the tray was removed, some cable temperatures were still about p

-4 -

the same as those at end of test. A visual inspection of cables indicated that there was scme sof tening of jacket material. However, one such cable was megge ed and found to have circuit continuity.

EXECUTED COPIES WILL BE PROVIDED LATOR Melv:l.n S . Abrams Sworn and subscribed to before me this day of 1979.

c ary Public My Ccmmission expires .

t .

9

c. a 05 t4J