Main Earthing Terminal

[marshr02]

Hi folks. TN-S System with MET near incoming as you would expect. The 10mm2 bonding conductor (gas) passes through the CU to reach the MET due to the physical layout. Is there any reason why it can't be terminated inside the CU alongside the 16mm2 earthing conductor. Obviously testing of earth might be slightly harder. I suspect it may still be worth carrying it to the MET. Cheers

 

[GLENNSPARK]

There's no reason why you can't but imo mets are best external especially on larger installs where you have gas, water, sprinkler, steam, oil and structural to contend with. I label up all mine as well just to be extra neat and clever.:rolleyes2:

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Wow - posted my question - then went for some tea - come back, and tons of replies - none seem for me - apart maybe from this one?

thats caus its a bit well...hmm...

 

[marshr02]

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thats caus its a bit well...hmm...

Thanks guys for the replies. One or other, but not split. Sort of knew it (in denial), but wanted to avoid the extra routing work....hence the Q

 

[44ALLAN]

There's no reason why you can't but imo mets are best external especially on larger installs where you have gas, water, sprinkler, steam, oil and structural to contend with. I label up all mine as well just to be extra neat and clever.:rolleyes2:

Would the said 'larger' install not be 3 phase though where you would be installing a D/B instead of a 'tiny' C/Unit then your MET would be a big twXX off earth bar inside the D/B instead of external?
Just wondering:speechless: not disagreeing !