Which of the following types of cable should be used to prevent toxic smoke and spreading of fire?

The correct answer is A. Plenum. Plenum-rated cable is specifically designed for installation in plenum spaces - the air circulation areas above drop ceilings and below raised floors used in HVAC systems. Building codes require plenum cable in these areas because standard PVC cable jackets release toxic…

Networking

Question

Which of the following types of cable should be used to prevent toxic smoke and spreading of fire?

Options

APlenum
BFiber
CShielded Twisted pair
DCAT6

How the community answered

(31 responses)

A
94% (29)
C
3% (1)
D
3% (1)

Explanation

Plenum-rated cable is specifically designed for installation in plenum spaces - the air circulation areas above drop ceilings and below raised floors used in HVAC systems. Building codes require plenum cable in these areas because standard PVC cable jackets release toxic chlorine gas and thick smoke when burned. Plenum cable uses low-smoke, flame-retardant materials (such as FEP or LSZH compounds) that self-extinguish and produce minimal toxic emissions if exposed to fire. Fiber, STP, and CAT6 describe cable types or construction standards, not fire/smoke safety ratings - though CAT6 can be made in plenum variants.

Topics

#plenum cable#fire safety#toxic smoke prevention

Community Discussion

No community discussion yet for this question.

Full 220-801 Practice