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If there's a hole behind a CU which the cables comes through should this be sealed up? I mean when they are pushed through cavity from meter box. If so what should it be sealed with, is loft/cavity wall insulation to fire reg standards ok?

So if its plastic pipes directly after the cock then it dosnt need bonding right? But what about if further up the chain it goes back to copper, should a 10mm earth be connected, as i cant see it becoming extraneous

Is a fsu allowed inside a bathroom? It is supplying a boiler, which is going to be enclosed inside a cupboard. It is not on a rcd

Does Water incoming have to be bonded if pipes from it are plastic? What about if further up the line the go back to copper? Problem is the stop cock comes under floor which is tiled and into wall which is tiled, with only the turny bit sticking out. Would the tiles have to be taken off and half...

Table 54H states 10mm for 35mm or less neutral conductor if PME system

Yeah i mean the main earth from cutout to MET, so is 10mm acceptable?

They're definately earths just wrong sleeving, should i reeplace or just note it on EIC? Its for an assessment for NIC, i've changed CU but obviously inspected a few s/o and found them

Yeah i've checked that and it says acceptable, but other tables for phase conductor state 16mm

Which form would you use to install 9 spotlights in place of a ceiling rose? I use a MWC but is that correct or should it be a EIC?

Is it ok to have a 10mm main earth if the phase and neutral are 16mm on a TNCS system?

I found some earths today with red or black sleeving on instead of the usual green/yellow, do i note that as a departure or in comments on existing installation?

When installing a new CU, is it ok to determind R1+R2 by Zs-Ze? Is that ok to write it on EIC?

What do you think of this for a wander lead? http://cgi.ebay.co.uk/WANDER-LEAD-ADAPTOR-CONTINUITY-TEST-LEAD-ADAPTER_W0QQitemZ220129664065QQihZ012QQcategoryZ25414QQssPageNameZWDVWQQrdZ1QQcmdZViewItem Will it do its job? I have a Megger BM121 how will it connect to that?

Do you have to install 25mm tails if upgrading a CU? Can the existing 16mm be used? The main fuse is 60A so surely 16mm is sufficient. Its just i am changing one tomorrow and are planning on using it for my NIC assessment and want it to be right in there their eyes

So what do you put when you do a PIR?

Where is it written on the old wylex fuseboards? It dosn't say anywhere i can see! Need it for a PIR, all others i have done have been CUs with MCBs

What BS type/number is a fuseboard main switch, and what will its current rating be?

Nothing coming up on ebay in that name

None on there

Does any1 know were i can get hold of a properiaty resistor box? Its for keeping tabs on IR tester to keep NICEIC asessor happy. Or 1ohm 0.5Mohm and 1.0Mohm resisitors?