Radial Circuit Diagram Uk

The diagrams below shows the new harmonised cable colours.

Radial circuit diagram uk. A radial circuit is a linear mains power circuit found in all homes to feed sockets lighting points and other specific items like showers cookers boilers or immersion heaters etc. Unfused spurs off a 20a radial. A radial circuit must follow these rules in general. Fig 1 shows what is referred to as a radial circuit sometimes called a loop in or multi point radial lighting circuit.

In electricity supply design a ring final circuit or ring circuit often incorrectly called a ring main a term used historically or informally a ring is an electrical wiring technique developed and primarily used in the united kingdom this design enables the use of smaller diameter wire than would be used in a radial circuit of equivalent total current. The electrical power supply to these bedrooms is a radial circuit in 2 5 twin and earth supplying 9 socket outlets. Electric lighting radial circuit my wiring kz 1467 diagrams for circuits wr 1880 single line diagram 1 2 and 3 house emfs wrg 9367 uk tg 5675 schematic. In effect it is a radial circuit whose final termination is made back to the originating distribution board rather than at the last outlet or device serviced.

Radial power circuit description. Fused spurs as many sockets as you want but remember the maximum 13a fuse in the spur. As many as you want using 2 5 mm sq. As many as you want using 4 0 mm sq.

30a 32a radial 4 0 mm sq. I bought a small garage type consumer unit intending to use this for all the electrics to this extension rather than mess with the existing wiring. Unfused spurs off a 30 32 a radial. Floor areas of no more than 50m2 requires a 20 a fuse or miniature circuit breaker protection with 2 5 mm live and 1 5mm protective conductors or 1 5 mm if m i.

Radial socket circuits 20a radial 2 5 mm sq. A ring circuit is a uk standard means for wiring domestic and other light commercial premises not often seen elsewhere in the world. It is simply a length of appropriately rated cable feeding one power point then possibly going on to the next. One single or one twin using 2 5 mm sq.

Radial circuits are used for lighting there is one lighting circuit on each lighting mcb lighting circuits are usually on a 6a mcb or 5a fuse though 10a can be used with some extra restrictions now removed in the 17th edition of the wiring regs for large circuits however if the area served is large more 5a or 6a circuits would in most cases be preferable.