On Tuesday, 24 July 2018 21:45:48 UTC+1, Terry Schwartz wrote:

Truthfully, you'd be better off paying for arc-fault breakers. They provide a level of safety against arcing that is likely to cause a fire. The human risk is greater than shock. And certainly GFCI functionality is NOT needed in every circuit in your home. Add the GFCIs where the local risk of shock warrants the installation.

UK now requires gfci protection (at the panel) on all domestic circuits. So when smoke particles land on the fire alarm mains supply wiring, the fire alarm loses its power. Great eh.


NT