DIY Doctor UK DIY Forums

jimmy_one_ball

If they're SELV then the transformer may have died.

jimmy_one_ball

Yes just one cable will be fine, 1.0mm is good enough to carry well over 6A even in the most onerous conditions (The circuit breaker rating must be 5/6A depending on the dvice). The switching arrangements will need careful consideration but you certainly don't need two seperate cables. Sadly this ty...

jimmy_one_ball

No, bin the transformer and use the cable that fed the transformer to your 230V lamps.

jimmy_one_ball

Helo I can give you quick answers to those questions: 1. No you don't need metal conduit, just plastic capping or plastic oval conduit to protect the PVC from the heat given off when cement dries. 2. No you can't use junction boxes like that in a ring final circuit, both cables go to every socket ou...

jimmy_one_ball

Is it the RCD thats tripping or an MCB? The RCD will have a little 'Test' or 'T' button on it. The MCB won't, they detect different types of fault.

jimmy_one_ball

Yes it is most certainly possible, just use like for like flex and make sure the circuit is isolated!

jimmy_one_ball

It is very possible that the two incidents are seperate and co-incidental. My instinct would be to safely isolate the supply to the socket outlet circuit and just remove the face plates to look for something obvious such as a loose wire. Any signs of overheating must be treated seriously, of course,...

jimmy_one_ball

You don't, that would be pointless!

jimmy_one_ball

Yes it is common to have a seperate 30A/32A ring final circuit for a kitchen due to the modern appliance loads involved. What you said in your first Q would be fine, just remember all conductor joints must be left accessible. The oven will need to be on its own circuit, the cable calc for that is a ...

jimmy_one_ball

As a guide to the type of socket outlet circuit you can look at the square metres of floor space of your garage 0 - 50 sq.m = 20A 2.5mm radial circuit 50 - 75 sq.m = 32A 4.0mm radial circuit 75 - 100 sq.m = 32A 2.5mm ring circuit I'm guessing the first option will be more appropriate in which case 2...

jimmy_one_ball

Yes mate, all sounds OK to me, your concern about point 3, sounds like all those socket outlets are part of the ring, which is good, maybe could have spurred using one cable but would have saved like 50 pence. Better that they are on the ring final circuit. Point 1 also is fine on one double socket ...

jimmy_one_ball

Yes you can have one double socket outlet from an unfused spur. The cable needs to be 50mm deep (to protect from 2" nails - at least thats the rule for walls) and conduit may be required because the cement that you use to fill in the chase will react chemically with the cables PVC sheathing cau...

jimmy_one_ball

Plastic water pipes will not introduce a zero potential, namely they are non conductive, so they will not need to be bonded. I think this is probably the main concern. As regards the earthing system your local distributor is legaly obliged to confirm the type of earthing arrangement that you have fr...

jimmy_one_ball

The only issues with extending flex are trip hazzards (clearly not an issue at this height) and voltage drop which isn't an issue either due to the small current.

Extend the flex, no problem, but replace it fully of course as you don't want taped up terminal block connections.

jimmy_one_ball

RCD's won't detect overcurrent such as a short circuit or overload so no, they don't operate like a fuse, they merely detect earth faults and are used for additional protection only. The main fault protection is either the MCB's or the re-wirable fuses which must have tripped/blown because the other...

Project Type A - E

Project Type F - G

Project Type G - J

Project Type M - P

Project Type R - T

Useful Tips

Search found 35 matches

Re: Faulty Spot Light Bar?

Re: Renewing cable to security and courtesy lights

Re: 12v to 230v lighting

Re: 17th Edition. Where do all the bits go?

Re: RCD tripping

Re: ceiling rose pendant light

Main navigation