Where by an installation comprises a mix of very low-voltage and really lower voltage circuits like mains lights and electricity, hearth alarm and telecommunication circuits, they have to be separated or segregated to prevent electrical contact (IEE Regulation 528.1). Bus-bar trunking units are built to distribute electrical energy effectively and https://electrical-trunking80011.blogolenta.com/34043964/cable-trunking-an-overview