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(vi) Role of fire – retarding paint (Intumescent paint) Thermocouple cables from all floor levels were connected to DAQ
placed at first floor level. These cables running beneath cement (vi) Behavior of fire doors and vision panels
All thermocouple cables within the compartments were applied coat with boards get exposed to fire during local failure of boards. Fire
HILTI Fire stop cable coating CP 678. This paint is of Intumescent type i.e., retarding paint applied as coat on these cables prevented the
swelling up when heated, thus protecting the material underneath in the cables from burning during fire. UL listed fire door remained intact during all fire
event of fire. tests. It could withstand close to 45 min of intense
heat. The unexposed side of the door was found to
Specifications of the applied paint on exposed cables are summarized in the be in good condition and the paint and system
table below. integrity of fire door was found to be in perfect
condition. Vision panel of fire door was broken due
to impact of water jet during firefighting

Technical Data Value operations.

Volume per unit 15400 ml

Application Temp. Range 5-40°C

Approx. Wet density 1300 kg/m3

Approx. Curing time 24 hrs.

Temperature resistance range -30 – 80°C
Image 37: Protected TC cables on exposure to
fire due to failure of cement boards
Viscosity 0.05 Pas
Weight 20kg

Water based Yes

Chemical basis Vinyl acetate

Color White Image 40: Unexposed side of fire door

Intumescent Yes

Odor No

Packaging Bucket
Image 38:Hanging intumescent cables Image 41: Broken vision panel of fire door
Table 16: Specifications of CP 678 fire stop cable coat paint from roof Image 39: Exposed side of fire door due to impact of water jet