BS 7671 Wiring regulations covers the electrical installation of buildings including the use of surge protection. Hot wires are black or red, and neutral wires are white or light gray. (this is the most common method) Switch loop through (the circuit connects to each switch in turn, and a separate cable goes from the switch to each lamp) Junction box loop in, where the termination and feed connection are done at junction boxes, and cables run to switches and lamps from there. The Complete Guide to Electrical Wiring (Current with 2014–2017 Electrical Codes) by Black+Decker. Electrical Wiring Residential written by Ray C. Mullin and Phil Simmons is very useful for Electrical & Electronics Engineering (EEE) students and also who are all having an interest to develop their knowledge in the field of Electrical Innovation. The diagram is shown with 6A lighting fuse and 32A ring circuit MCB. Handbook. For safety, all modern circuits include a bare copper or green insulated grounding wire. Wiring Regulations, and are called reference methods. Each electrical method statement folder contains editable files like: Method Statement – Word File Format; Inspection & Test Plan ITP – Excel File Format; Checklists – Word File Format ; Risk Assessment – Word File Format; We also have other pages for downloading construction method statements for HVAC, Plumbing, Firefighting, and Civil Works. If there is no reference for particular Method of Construction in IS, such work shall be carried out as per the approved Method of Construction specified in chapter 16 of P.W. Brown for Live, Blue for Neutral and Green/Yellow for Earth. Current enters a circuit loop on hot wires and returns along neutral wires. These wires are color coded for easy identification. The 18th Edition of BS 7671 applies to the design, erection and verification of electrical installations, and also to additions and alterations to existing installations. There are seven alphabetically lettered reference methods, that is A to G. Dept. Electrical wiring composes of electrical equipment such as cables, switch boards, main switches, miniature circuit breakers (MCB) or fuses, residual current devices (RCD), lighting points, power points, lightning arrestors, etc.. All the individually numbered installation methods have a lettered reference method stated against them in Table 4A2, except for lat twin and earth cables which have reference method numbers 100 to 103. With the progression of wiring standards over the years, there are several electrical wiring colour coding used in homes around UK. The colour coding for current wiring standard is highlighted above. WIRING 1.1 Mains in Metal Conduit WG-MA/MC 1.2 Mains in PVC conduit WG-MA/PC ... Work shall be carried out as per the Method of Construction specified by BIS.