Halogens, specifically chlorine and bromine, are suspected of posing serious dangers to human health and the environment when used as a brominated flame retardant (BFR) or in polyvinyl chloride (PVC).

This answer is based on the 2017 NEC. A. Insulated conductors typically used in dry and damp locations include Types THHN, THHW, THWN, or THWN‑2. Other conductor insulations that can be used are Types ...

Among the things that contribute to satisfaction, good reputation, and a thriving business on the part of an electrical contractor would be a collection of projects that are still operating reliably ...