"Good thing I have non-electrical heating aka the fire."
"They also blocked the attempt, around the time of the OKC bombing, to require plastic coded microchip (non-electrical; a colour-coded layered microscopic flake of plactic) taggants in black powder."
"Being proactive in the safety industry is marked by Safe Lights new research programme aimed to have all its products certified under ATEX to EN1127 for Zones 1+2 within the next 3 months making it the most intrinsically safe non-electrical safety light product on the market."