I'm very tempted to replace the M5x10 PZ2 busbar screws in my MK Sentry
CUs with decent hex head screws, at least at the positions where there
are multi-strand cables or multiple single-strand cables. Is there
anything authoritative that says I can't do it?

wrote:

I'm very tempted to replace the M5x10 PZ2 busbar screws in my MK Sentry
CUs with decent hex head screws, at least at the positions where there
are multi-strand cables or multiple single-strand cables. Is there
anything authoritative that says I can't do it?

I have no idea about any rules, but I think it would be unsafe in
inexperienced hands, as it would be too easy to cut the wires or strip
the brass busbar threads. I would at least use brass screws.


--

Roger Hayter

On Monday, 17 June 2019 21:57:58 UTC+1, wrote:
I'm very tempted to replace the M5x10 PZ2 busbar screws in my MK Sentry
CUs with decent hex head screws, at least at the positions where there
are multi-strand cables or multiple single-strand cables. Is there
anything authoritative that says I can't do it?

If modified it ain't type approved. What difference that makes in practice is another matter.


NT

Roger Hayter wrote:

wrote:

I'm very tempted to replace the M5x10 PZ2 busbar screws in my MK Sentry
CUs with decent hex head screws, at least at the positions where there
are multi-strand cables or multiple single-strand cables. Is there
anything authoritative that says I can't do it?

I have no idea about any rules, but I think it would be unsafe in
inexperienced hands, as it would be too easy to cut the wires or strip
the brass busbar threads. I would at least use brass screws.

i am sure you woudl use them wisely; but if in the future someone else
lives in your house they may not. So it may not be an acceptable
modification, even though actually a safety improvement at the moment.

--

Roger Hayter