Does wall insulation affect electrical work?

Does wall insulation affect electrical work?

Yes, it can. There are different levels of power allowed through your electrical cables depending on the type of insulation that surrounds them. The reason for this is a cable that is surrounded by insulation can’t dissipate as much heat as a cable with insulation only touching one side. If you have too much power running through a circuit that is surrounded by insulation you run the risk of overheating and fire.

In most cases, when any loose insulation is present in the ceiling and/or walls, cables are deemed as completely surrounded by insulation. Recent changes to AS3008:2009 (The Australian Standard for Electrical Wiring) have reduced the amount of power allowed to run through older wiring when completely surrounded by insulation. https://alexanderwatson.com.au/mandatory-electrical-inspections-for-insulation/

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