DonkeyDong
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- Mar 14, 2008
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Heres one for a Friday night...
How do you guys deal with discrimation of RCDs with the 17th?
Previously Type S/Time delayed were quite popular, but you dont hear a mention of them now...
So for an example you might find in a domestic, you have a garage or out building which is fed from the house CU/DB. The circuit to the garage is RCD'ed due to cable depth/type (thanks 17th Ed). This runs to the shed which has a mini CU/DB with RCD - how do you achieve discrimation ?
Do you either not fit an RCD in the shed, or fit a Type S in the house (bearing in mind you can't get Type S RCBO's for domestic boards)
D.
How do you guys deal with discrimation of RCDs with the 17th?
Previously Type S/Time delayed were quite popular, but you dont hear a mention of them now...
So for an example you might find in a domestic, you have a garage or out building which is fed from the house CU/DB. The circuit to the garage is RCD'ed due to cable depth/type (thanks 17th Ed). This runs to the shed which has a mini CU/DB with RCD - how do you achieve discrimation ?
Do you either not fit an RCD in the shed, or fit a Type S in the house (bearing in mind you can't get Type S RCBO's for domestic boards)
D.