which rcd?
- Thread starter sijaysee
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thats very rude! He's been an electrician for 30 odd years and also worked for SWEB when he was younger. So you are saying that they are both wrong then? Should i just leave the voltage trip in then? Is that the safest way of going about it?
No.
A few better options have already been suggested. Pick any combination from:
Have the supply changed to PME (TNC-S) which may cost you £50 or so but might be free
Get a 100mA Time Delayed RCD (which probably will cost you more)
Put your Sockets and showers on a 30mA RCD, if necesary with a small new CU
Get some RCBOs or a Split-load CU
If you put your whole installation on a 30mA RCD, you will get a lot of nuisance trips; probably when you turn on your electric oven and/or immersion heater and/or computers, and sometimes for no reason that you can detect. As you obviously have an old installation with ceramic rewirables, it might trip constantly and fail to reset. When this happens, not only will you lose all power, so the food in your freezer will rot if you are away, and your alarms will run down, but also all the lights will go out, so if you are running downstairs, you will probably fall, if you are up a ladder or carrying something heavy, you may hurt yourself, if you are in the kitchen carrying a hot pan you may trip and scald yourself. Added to which you will have to find your way to the Consumer unit in the dark. I am surprised your friend did not take these risks into account.
Where did I work when I was younger?
Have you told us what type of breaker you already have, and its rating? ELCB is too vague.
p.s. Why do you say
"spesifying to the customer"
"for the customer to use"
Do you mean you are doing electrical work for someone? Are you a builder? Or an electrician? Or a property develoer? Or a landlord? Or what?
A few better options have already been suggested. Pick any combination from:
Have the supply changed to PME (TNC-S) which may cost you £50 or so but might be free
Get a 100mA Time Delayed RCD (which probably will cost you more)
Put your Sockets and showers on a 30mA RCD, if necesary with a small new CU
Get some RCBOs or a Split-load CU
If you put your whole installation on a 30mA RCD, you will get a lot of nuisance trips; probably when you turn on your electric oven and/or immersion heater and/or computers, and sometimes for no reason that you can detect. As you obviously have an old installation with ceramic rewirables, it might trip constantly and fail to reset. When this happens, not only will you lose all power, so the food in your freezer will rot if you are away, and your alarms will run down, but also all the lights will go out, so if you are running downstairs, you will probably fall, if you are up a ladder or carrying something heavy, you may hurt yourself, if you are in the kitchen carrying a hot pan you may trip and scald yourself. Added to which you will have to find your way to the Consumer unit in the dark. I am surprised your friend did not take these risks into account.
Where did I work when I was younger?
Have you told us what type of breaker you already have, and its rating? ELCB is too vague.
p.s. Why do you say
"spesifying to the customer"
"for the customer to use"
Do you mean you are doing electrical work for someone? Are you a builder? Or an electrician? Or a property develoer? Or a landlord? Or what?
sijaysee said:
regulation 471-15-01[code:1]A socket-outlet rated at 32A or lesswhich may reasonably be expected to supply portable equipment for use outdoors shall be provided with supplementary protection to reduce the risk associated with direct contact by means of a residual current device having the characteristics specified in Regulation 412-06-02(ii)[/code:1]
so that means every socket downstairs ( where you can run an extension lead through an open window to reach any of them ) has to be protected with an RCD.. this includes the socket that may be part of the cooker switch.. ( assuming that your kitchen is downstairs of course.. )
Manufacturers installation instructions superceed the regs.. if it saye to put it on an RCD then you should do so..
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i dont have an RCD in my house.For outdoor use or otherwise . Is that against the law? Im still waiting to hear whether pme is available. the voltage trip is a crabtree 60A ELCB. I think i'll do wot my health and safety boss told me to do which was to install a 100mA RCD and a 30mA socket for outdoor use. I wont touch the shower circuit. Im not gonna be leaving it in a worse condition than when i started am i? With the RCD its got to be an improvement on wot was there before
sijaysee said:
Have you got the foggiest idea what you are doing.Why are you even attempting this work as you sound out of your depth
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sijaysee said:
Well, perhaps, but why not do the job properly?
I assume it is not your property, hence you don't care too much about whether there is nuisance tripping etcetera...
sijaysee said:
And it seems he is still working to the 14th Edition....A good spark does not stand still - there is always something new to learn & keeping up with the regulations is the bare minimum anyone should do.
the customer wont pay for a board change. All they wanted was a few new sockets and so these are the problems that have gone with it. The nuisance tripping shouldnt be a problem with the 100mA RCD. Like i said before , it has to be an improvement on wots there.
sijaysee said:
Because it's ridiculous that you are charging someone for services which you don't know how to carry out. I'm glad you are seeking advice but if you don't hold even the most basic knowledge, I don't think you should be doing this type of work.
but the thing is that i have 3 different opinions of how to tackle the job properly and safely. 2 are from professionals known by me and others are from people on here that may be professionals but as i dont know them , i cant say that for sure. so what im saying is that some of these other people also dont know what they are doing. am i right?
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