Search results

no Zs = Ze + (R1&R2) Zs can be lower than Ze on a TT system if both quantities are measured as Ze is measured with main equi potential bonding disconnected Zs will be measured with it connected and there could be a good earth on water supply.

try this link http://www.competentperson.co.uk/ just enter your post code Also if you haven't got one now get an RCD fitted or ideally a new consumer unit.

AFAIK there now ammendments being published for BS7671:2008 so don't hold your breath on OSG

Do you think the DNO/ supply company will have a record? I can't see a problem, no different than a Henly block mounted on DNO board

You mean you are prepared to let a property to a tenant when you are aware of an electrical fault. Health & Safety also the 2003 Housing Act come into mind for a start. For the sake of one month's rent get it sorted!!!

http://www.diynot.com/wiki/electrics:lighting:parallel

I just wax lyrical :D All electrical - mainly domestic & light industrial and some commercial Also marine electrical (230 & 12V) & electronic systems

That should not make difference to operation of RCD Have you checked IR? Nuetral - Earth fault springs to mind.

Sorry RF topic does say "Photo" no Picture Oh and I found macro feature on camera

Found this today after investigated why lighting cct was tripping MCB. Pretty obvious why!!

Not in France as most of their electricity comes from Nuclear

Depends largely on how many conductors need extending. If it's only a few and joints will be in CU the through crimps are used. Otherwise it's DIN rail enclosure with din rail connectors

Oh Dear! Oh Dear! Oh Dear! Amps, Volts & Watts are all dependent variables And if Ohm's Law is applied V= IxR So if V is reduced from 240 to 230 then current will decrease. to 64.8725 A (approximately)

Split concentric from switch fuse to CU is a good alternative to SWA and it will be fairly simple to bring through the rear of CU to terminate. http://www.diynot.com/wiki/electrics:cable_types:concentric_type_cables_straight_concentric_and_split_concentric

All I will say is you get what you pay for!!!!

To be fair OP asked about soldering. And by the nature of his question it sounds like he has limited space which could be difficult getting the jaws of crimping tool in position to make an effective joint.

Proteus is CEF's own brand have you tried them? ED what's your location as I have a CEF 1/2 mile from me, I don't have an account with them so price could be anything. But if you're really stuck I might be able to help.

Leave everything alone for moment and get the 'person' who fitted the shower back to do the job properly. I assume your Sister in Law got a receipt, Electrical Installation Certificate and building regulations complaince certificate

not necessarily as back boxes could be drilled and tapped to take an earthing screw - your electrician will advise on the best option once he inspected and tested.

Not my understanding of BS7671 for a CU change Chapter 74 brown book - haven't got the red book yet, as I'm working to 16th until June. There is no problem working to 17th before they become extant but the installation must comply with one or the other not some of one some of the other...