When a cable is run under floors or over ceilings, what is required to ensure safety?

• A. It must be fitted somewhere it wont get damaged by contact with fixings.
• B. It must be installed in metal conduit.
• C. It must be routed close to heat sources.
• D. It must be buried underground.

Answer: (A)

Cables that run under floors or over ceilings face a real risk of mechanical damage from fixings like nails, screws, or floor/ceiling fittings. The safest and most practical approach is to place the cable where fixings cannot strike it or to enclose it in protective containment so fixings cannot contact it. That’s why the best choice is to ensure the cable is fitted in a location or with protection that prevents damage from contact with fixings. Using metal conduit can be part of the protection, but it isn’t an automatic requirement in every case; burying underground or routing near heat sources aren’t appropriate here.