wiring upgrade - but how far ?

? whats accesssibility of equipment got to do with it?
do the bonding ,test and cert your work ,recommend a pir

Dunno Wayne, what has acessibilty of equipment got to do with it?

Its certainly got nothing to do with 130-07-01:p

Be of a mind to check the lighting !970s installs may have no cpc in the lighting,so complications may arise if you decide to change the cons unit
To keep costs down There is nothing wrong with retaining the wylex fuse board installing the main bonding and maybe a stand alone 30m/amp rcd
The supplementary bonding may be ignored because no work is being carried out in the bathroom and the stand alone rcd will comply more with the 17th where yoiu need only confirm the continuity of the pipework

Des, 130-07-01 (as you no doubt know) says "no alteration or addition shall be carried out....etc etc....unless the earthing and bonding arrangements are also adequate"

I must have missed the bit where it says "except supplementary bondng in the bathroom unless you are working in the bathroom ":p

Of course under the 17th, this reg has been amended (think its 130.8?) and they have added the massive get out clause of "where necessary for the protective measures applied for safety" (or words to that effect) ginst the earthing and bonding

So if working to the 17th, yes, you could ignore the supp bonds, as you can if all of the bathroom is on an RCD, meets disconnection times and extraneous paths are less than the magic 1667 ohms

Which is why i raised my point, under the 16th, 130-07-01 applies, and does not, as i read it differentite between main and supp bonds

and yes, this is an ge old argument:rolleyes::p
 
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