fuse protection on radial

[vertigodj]

i understand that if i wanted to create a new radial circuit off a 30a fuse which is already supplying a ring main,the new sockets (3) on the radial have to be protected by a 20a fcu.What will protect the length of cable (2.5) from the cu to the fcu before it gets there ? does it need any ?

 

[Steve]

Where were you thinking of buying this 20A FCU? Nowhere i know sells them. Like a long stand or a tin of tartan paint.

You should use larger cable that can handle 32A (4-6mm²) before the FCU.

Bear in mind, this is a fused spur from that ring main, not a radial.

 

[vertigodj]

sorry i mean 13a fcu, so you are saying use 4-6mm cable from cu to fcu ?

 

[Adam_151]

each circuit should be connected to its own fuseway at the distrubution board, can't remember the number of the reg that says this.

if you want to do what you want to do, then you can take a spur off the ring circuit at the DB and if you take this through a 13A FCU (as crafty says, no such thing as a 20A FCU) you can supply as many outlets as you want, not really ideal though

Advise you install a 20A radial circuit on its own fuseway, or insert your new sockets onto the existing ring