HappyHippyDad

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I want to replace some metal socket screws with nylon screws.

I can only find 25mm ones. I really need a selection, at least 35mm i would think, preferably a few 40mm ones as well.

If they are impossible to find, then I guess I could use the extenders, but I'd much rather have a selection of varying sized nylon.

Does anyone know where to purchase them?
 
Your item 5 cannot be considered in a dwelling according to BS7671. I am sure these Guides have a large brain pool behind them but nevertheless Class II should not be considered.
BPG4 is specifically titled "Classification codes for domestic and similar electrical installations"

Codes are almost by definition cases where the situation doesn't comply with BS7671. The issue is not whether it does, but whether it "requires improvement", or only is "recommended for improvement".

The issue is more whether it's acceptable to carry out remedial work that only changes the situation from C2 to C3, in order to get a "satisfactory" EICR.


It's fairly clear that putting in new circuit that would attract a C3 is not going to be compliant in pretty much every case....

Is replacing 1 light switch new work that requires complete adherence to BS7671? Or "maintenance" to leave a system safer than it was.......

I'd tend to err on the side of being OK with replacing one switch, but not every light fitting - somewhere in that range everyone needs to find their level of acceptance....
 
Finding no cpc and either situation is pretty clear - non compliance and code.
The hang up (and penny just dropped, or maybe light-bulb moment ...groan...) is normally in our day to day work we wouldn't wilfully create a C3. And that is what we'd be doing.

I won't go on like a stuck record but I am genuinely interested in one point. @Pretty Mouth I agree with number 3 as you have stated it.
I do note that both 415.1.2 which you quote and 412.1.2 have the word "sole" in them.
No argument at all from me that an RCD cannot replace any protective measure. That wasn't my point.

412.1.2 which is held up as the "you can't do this" reg (another £5 sorry!) talks about double or reinforced insulation as the sole means of protection.
Is it any sort of argument that with an RCD the double or reinforced insulation isn't the sole means of protection as there is additional protection. If so 412.1.2 wouldn't apply. I'll get my coat....
 
Finding no cpc and either situation is pretty clear - non compliance and code.
The hang up (and penny just dropped, or maybe light-bulb moment ...groan...) is normally in our day to day work we wouldn't wilfully create a C3. And that is what we'd be doing.

I won't go on like a stuck record but I am genuinely interested in one point. @Pretty Mouth I agree with number 3 as you have stated it.
I do note that both 415.1.2 which you quote and 412.1.2 have the word "sole" in them.
No argument at all from me that an RCD cannot replace any protective measure. That wasn't my point.

412.1.2 which is held up as the "you can't do this" reg (another £5 sorry!) talks about double or reinforced insulation as the sole means of protection.
Is it any sort of argument that with an RCD the double or reinforced insulation isn't the sole means of protection as there is additional protection. If so 412.1.2 wouldn't apply. I'll get my coat....
You cannot rely on an rcd in the absence of a cpc.
 
The clarity is in EAWR (Reg 8 & 10). As for BPGs; they're 'industry' guides but as with everything you'd take it with a pinch of salt. You'll be whipped with EAWR, 7671 at a push bit I doubt the judiciary would even entertain looking at the BPGs.
The prosecution might not raise it but you can be sure than any decent defence would use it - just as each side would have highly paid experts involved.

It would be hard for the BPG to be dismissed as irrelevant, given the status of many of the bodies behind it...

The truth is, cases will usually only get to court when something fairly egregious has occurred, such as disregarding all guidance, or falsifying records....
 
You cannot rely on an rcd in the absence of a cpc.
You're right of course.
Anyone else think the regs are a little strange sometimes?
We demand RCD's on TT systems where high earth impedance makes the earthing almost useless.
The TT'd metal consumer unit is perfectly safe even though it effectively has no earthing to speak of.
The class 1 light fitting on a TT system is deemed perfectly safe even though the only thing keeping it vaguely safe in fault conditions is really an RCD.
But for a variety of reasons the BBB says an RCD can't make a class II light fitting safe.
I guess our job is to just follow the regs and not think about them too much.
 

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HappyHippyDad

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If you're a qualified, trainee, or retired electrician - Which country is it that your work will be / is / was aimed at?
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