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In the wooden partition.
didn't you see the video? It's to prepare for all the future circuits for your battery banks and electric car charging points! (If you can afford it after spending all your money on the CU) Just feed the cable into the already made hole...
 
didn't you see the video? It's to prepare for all the future circuits for your battery banks and electric car charging points! (If you can afford it after spending all your money on the CU) Just feed the cable into the already made hole...
Except that they probably wouldn't come in from the back.
 
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In the wooden partition.
Well it's smaller than the steel knockout and makes it nice and easy to feed the cables into the back of the CU, so what's the point in making the cutout smaller and more fiddly ?
 
Well it's smaller than the steel knockout and makes it nice and easy to feed the cables into the back of the CU, so what's the point in making the cutout smaller and more fiddly ?
It's into a partition, nothing is going to be easy to get back entry into that CU.
 
The large hole helps vent the flames into the wall void.
Exactly! The enclosure is not air tight, and heat inside will be fanned into flames by the chimney effect of the void. just like nominally non flammable insulation on the outside of high rise buildings.
 
Well it's smaller than the steel knockout and makes it nice and easy to feed the cables into the back of the CU, so what's the point in making the cutout smaller and more fiddly ?
Going with that logic, they may as well knock all of them out, that would make it a lot easier.
 
Totally irrelevant. And there is nothing in the Regs about making a CU 'airtight' , if anything that's counter productive as we're told to install in such a way to minimise the build up of heat or words to that effect.
 
Totally irrelevant. And there is nothing in the Regs about making a CU 'airtight' , if anything that's counter productive as we're told to install in such a way to minimise the build up of heat or words to that effect.
As far as is reasonably practicable, to contain any fire within the enclosure or cabinet and to minimise the escape of flames.
 
Won't be long before everyone is filling a consumer unit with expanding foam 🙃
 
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