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Discuss rcd on a 2 phase system in the Commercial Electrical Advice area at ElectriciansForums.net

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hi
on an installation i am about to work on it is a 2 phase system, L1 phase has been split between 2 cutout fuses

so L1, L1, L2, N & TT earth

if a 4 pole time delay rcd is used as the incomer will the rcd work correctly under fault condition, and also will the test button work as normal? Manufacturer will be hager.
thanks for help
 
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Lucien Nunes

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Mentor
Arms
Esteemed
It will work, and the test button will work too provided that the two L1 lines are not on the two poles used by the test circuit. Rather a non-standard arrangement... presumably only single-phase loads are served?
 

JD6400

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Mentor
Arms
Hi VDE,
Is it a true split phase supply, and you are just running L1 twice .
If it is you may want to check the Hager RCD s rated to 480v , as I think from memory only schneider make one.
 
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