RCBO/GFCI FOR KITCHEN EQUIPMENTS WITH INDUSTRY SOCKET RATED 63A

[Muhammad Irfan]

KITCHEN EQUIPMENT ARE ALREADY GROUNDED WITH EFFECTIVE GROUND FAULT CURRENT PATH.

IS IT NECESSARY TO INSTALL THE GFCI/RCBO FOR KITCHEN EQUIPMENT RATED LESS THAN 63A IF EQUIPMENT ARE CONNECTED WITH IP66 INDUSTRY SOCKETS? SEE IN PICTURE.

SYSTEM OPERATING VOLTAGE IS 230V FOR LINE TO GROUND AND 400V FOR LINE TO LINE (LOCATION SAUDI ARABIA)

 

[don_resqcapt19]

What electrical code applies?

 

[Muhammad Irfan]

NEC 2020

 

[don_resqcapt19]

In general the NEC requires receptacles on branch circuits rated 50 amps or less to have GFCI protection. However the NEC only requires GFCI protection for branch circuits that are 150 volts or less, your circuit does not require GFCI protection.
This is one of the problems when you try to use the NEC in areas that do not use the same voltage systems as are used in the US.

 

[Muhammad Irfan]

So is there any way to apply that code in countries where voltage system is different?
Or we can't apply code if voltage limitations apply?

 

[don_resqcapt19]

So is there any way to apply that code in countries where voltage system is different?
Or we can't apply code if voltage limitations apply?

You can apply it but you can't use a GFCI device as they are not designed to work on circuit that are more than 150 volts to ground. You would have to find an different device to provide the protection, but the NEC requires Class A GFCIs which has a 5 mA ground fault trip point. I don't think there are any 5 mA trip devices for a circuit that operates at 230 volts line to ground.

If you want to try and follow the requirements of the NEC, the best you could do would be to provide 30 mA trip RCD devices for the circuits and locations that the NEC requires GFCIs.