Search results for query: the fuse is to protect the cable

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 ?

I am installing a Spur from a ring . The spur will terminate in a fused spur plate which will supply a TV. The cable will be 2.5mm Flat twin and earth which will be laid in a Plaster boarded Breeze Block wall which I will then re plaster over. I understand the regulations are that such a...

Cooker circuit is protected at consumer unit via a 40a fuse and has isolation switch within 2m and i have a outlet plate behind the cooker..Cooker will be fitted within 2m of isolation switch. Cooker i am putting in is rated at 7.9kw manual states min 25a fuse and cable to be...

Just bought a new oven and a new cooker outlet connection, however; the instruction manual states the requirement for a 15A - 20A Fuse protection. The Cooker Radial circuit is on a 32A MCB at the consumer unit. The old oven was wired to a 13A Fused switch which was connected to the 6mm...

Evening chaps, theoretical situation for my own interest / learning purposes and to check my assumptions / calcs. One item on a ring final (protected by a B32 breaker) is an FCU with a 13A BS1362 fitted to it whos output is 2.5mm2 T+E radial that feeds 4 double sockets. Fuse type correction...

:?: I have used a redundant 6mm shower cable to supply power to a new immersion heater. The cable was protected in the CU with a 30A breaker. Should I reduce this and if so to what?. Also would it be advisable to install a switched fused spur to isolate power to the digital immersion timer. Any...

What are the regs regarding the size of a cable feeding a fuse. Does it have to be large enough to be protected by the suuply fuses regardless of distance? For example. Imagine a DB fed from a 100A fused supply. I need to fit a 20A fused switch at the side of the DB. There are no spare ways...

I know it sounds ridiculous but I don't think they really do. I have known fuses to take twice their rating capacity for quite some time before finally blowing. Best one is the very common main 60 amp cut out fuse in your normal household with the service cable only rated around 80 ish max, if...

I see that washing machines come with a 13A fuse as standard when it may only draw around 4 amps. Common sense would say fit a 6A fuse. I intend to do this with my appliances, find out the amps drawn and put in a fuse to match. Why are supplied fuses in appliance over rated? This surely must...

Many Thanks for all those who helped with this thread http://www.diynot.com/forums/viewtopic.php?t=206367 I will today do this job in my loft. I will use the redundent 10mm cable to feed a fused spur and from the output side I will feed a double socket and another fused spur for the...

I've an oven which has max load 15.7A. I have this connected on 6mm cable which has a 32A fuse in the fusebox. There's a 40A switch in between. What should the fuse rating in the fusaebox be? Is that fuse to protect the appliance or the cabling? Thanks

hello people. I need to install a mini fuse box at a location away from the main supply. So ill be adding a switch fuse. The new fuse box will be incorperating rcd protection, the cable supplying the new box will be partially embedded in a wall so will need to be rcd protected. my...

Hello DIYNot forum members! I need to find a suitable and accessable place to add a switched 3A-fused spur for a boiler. I have two accessible rings to add it to: 1) Upstairs lights - not suitable, as it lives on a 6A RCD (B6) 2) A mysterious 63A RCD Protected Circuits breaker that gives power...

What the minimum fuse rating that can be fitted in one of these ? Would it be useful in protecting 1.5mm or 2.5mm SWA cable

At present I have a 7.5 Kw shower wired with 6mm squared cable, protected by a 30 amp fuse. The run of cable is about 5metres with most of the cable under the floor. Can I upgrade to an 8.5 kw shower using the same cable, and can I change the fuse to a 40 amp mcb. I believe you can get retro fit...

I see a lot of switch Fuse's in factories etc where a SWA cable will come from the DB to feed a machine but before it hits the machine there will be a switch fuse before it... Why do this when there is a breaker protecting it? Why not just use an isolator as required.. Only asking as I've...

...more: https://www.diynot.com/diy/threads/electric-fan-oven.591065/#ixzz7SAlLp0Sb If the MI said that they are wrong. The purpose of the fuse is to protect the cable not the oven on the end of it which should be internally protected. I don't believe Neff fitted a 10amp rated cable to their oven.

Currently I have a shed that is fed from a fused spur from the kitchen. The supply to the kitchen is RCD protected. The cable that runs out to the shed is 2.5mm T&E. The fused is a 13A. The cable is clipped along a treated wooden batten about 3ft from the ground fastened to shed posts. I...

Hello All. I have a 16A B type MCB 'protecting' a radial circuit 2.5/1.5 T&E, (comprising of 1 x fused spur that was used for an old heater) further protected by a (100A /) 100mA rcd mainswitch in my 3rd floor flat. (TN-S- system). Part of this original cable run is 'concealed'. I would...

Some time back electricians installed a whether proof box with what I thought was an external radial using a 2.5mm cable running from the consumer unit (supposedly to a 16A MCB). This was to allow me to connect a 2.5mm underground armoured cable to my garden room. Unfortunately it doesn't look...