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Sealing Hole in CU

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Resu

Resu

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Hi guys just a quick one. Have a 3 phase board in a small commercial unit fed from a single phase. Circular hole in bottom of cu is around 50mm in diameter and all that passes through is two 25mm tails and 16mm earth. What would be the best option to seal the hole without making a mess? Have found similar threads but these seems to centre around the hole being in the back (ie. into cavity) so options provided don't suit what we need. Our options are limited in regards to wholesalers (120 miles away), no delivery til Thursday, so would need to be something we could pick up in the likes of Jewsons or similar building merchants!

Thanks!
 
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If the tails are fully supported and any movement won't play on the terminals then a grommet would be fine if the tails are unsupported then increase hole to 32mm and fit a stuffing gland... I did this today so 32mm will be suitable.
Available from most Electrical Wholesalers.
 
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darkwood said:
If the tails are fully supported and any movement won't play on the terminals then a grommet would be fine if the tails are unsupported then increase hole to 32mm and fit a stuffing gland... I did this today so 32mm will be suitable.
Available from most Electrical Wholesalers.
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As said in OP existing hole is around 50mm. Need something to fill remaining gap to stop potential for fingers/objects to be inserted. (Ooer) and nearest wholesaler is 120 miles away and they dont deliver tomorrow
 
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Would it pass the Standard Finger test as it is?

[ElectriciansForums.net] Sealing Hole in CU
 
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telectrix said:
get a piece of metal plate. drill out 25mm hole and some 5mm screw holes. self tappers into DB. fit grommet.
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As soon as you asked steel or plastic this popped into my head! Been doing way to many EICRs recently and brain is fried with figures and codes. My technical side has just woken up! Thanks Tel, think this is the way we will go!
 
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What no back stock?... ok then screw a conduit box lid over the hole and drill and grommet a more suited hole unless you have no stock at all then arrange to go back when you have the correct gear...can't help anymore than that unless you just want to make some grommet strip and silicone seal the remaining hole... if you have sealant but can look un-professional.


EDIT - OP posted at same time, same idea.... conduit lid is ready made though with holes ;) just needs center hole to drill then.
 
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darkwood said:
What no back stock?... ok then screw a conduit box lid over the hole and drill and grommet a more suited hole unless you have no stock at all then arrange to go back when you have the correct gear...can't help anymore than that unless you just want to make some grommet strip and silicone seal the remaining hole... if you have sealant but can look un-professional.
Click to expand...
Yes back stock but its 35 miles away in the gaffer's shed and job is nearly the same distance the opposite way! Was looking for an easy option as I completely overthought it. We are in the process of making a list of stock for our newly acquired container round the corner from my house. Got a few more things to add now!
 
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Resu said:
Yes back stock but its 35 miles away in the gaffer's shed and job is nearly the same distance the opposite way! Was looking for an easy option as I completely overthought it. We are in the process of making a list of stock for our newly acquired container round the corner from my house. Got a few more things to add now!
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jigsaw something out for a tempory if it bothers you that much
 
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PEG said:
...Ah,that explains a lot...I found one in my missus handbag....Bless her,she quite obviously has been supplementing the food budget,with some extra curricular compliance testing.

Must be,she hates DIY...:icon12:
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Either that or that '50 shades of grey' crap has inspired her to give you a rectal exam on you next bedroom adventure :willy_nilly:
 
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darkwood said:
What no back stock?... ok then screw a conduit box lid over the hole and drill and grommet a more suited hole unless you have no stock at all then arrange to go back when you have the correct gear...can't help anymore than that unless you just want to make some grommet strip and silicone seal the remaining hole... if you have sealant but can look un-professional.


EDIT - OP posted at same time, same idea.... conduit lid is ready made though with holes ;) just needs center hole to drill then.
Click to expand...

This just highlights what's going to happen from next year onwards. Can you imagine the abortions that are coming when these Electrical Trainee chancers start having to work with metal consumer units? lol!!
 
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