Hi, gone to look at a board change job, it’s an old re-wirable fuse box less than 3m away from DNO and ran in 16mm tails, 10mm earth and no bonding to the incoming gas pipe and customer has no idea where the water comes in as the house has no stop cock. I will be putting a dual split rcd 100a main switch board in. My question is, is it good practice to upgrade the tails to 25mm and earth to 16mm?
 
Hi, gone to look at a board change job, it’s an old re-wirable fuse box less than 3m away from DNO and ran in 16mm tails, 10mm earth and no bonding to the incoming gas pipe and customer has no idea where the water comes in as the house has no stop cock. I will be putting a dual split rcd 100a main switch board in. My question is, is it good practice to upgrade the tails to 25mm and earth to 16mm?
What's the earthing arrangement bud?
What's the load?
 

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16mm meter tails
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UK Electrical Forum
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Created
Sparks321,
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7029 dave,
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