Class 2 (2nd Engineer) MET 📅 Jan 2020

Exam Question

(a) (i) Discuss the various hazards and problems which are associated with electric cable insualtion in the event of fire.

(ii) Suggest remedies of these problesm

(b) State how the spread of fire may be reduced by the method used for installing electric cables

Reference Answer

(a) Various hazards and problems which are associated with electric cable insulation in the event of fire:
Burning insulation materials produce dense smoke , which significantly hampers visibility and poses safety risks for personnel.
The decomposition of insulation materials releases toxic and lethal gases, endangering the lives of crew members.
Fires can cause cable insulation to fail, leading to short circuits that may trip the generator, causing blackouts and compounding the emergency.

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