GFCI with 120V Receptacles in Hazardous Area
GFCI with 120V Receptacles in Hazardous Area
(OP)
Dear ALL,
We have Class 1 Div 2 Group B,C,D Area in a part of the plant and the rest of the Plant is classified as Class 1 Div 2 Group C,D area.
The specification states that ALL Conveinience receptacles(120V Single phase,Explosion proof type) shall be provided with Ground Fault Circuit Interrupters.
I checked out the Vendors(Crouse Hinds,Appleton),and they offer GFCI only for Group C,D areas.
They do not offer for Group B areas.
Is there any specific Hazard if we provide GFCI on Group B area receptacles.
Vendor is proposing that GFCI be mounted in the Distribution Panel(Ex type)-but this limits my operation since one breaker feeds 8 receptacles and a GF on one receptacle would render all 8 outlets without power.
We have Class 1 Div 2 Group B,C,D Area in a part of the plant and the rest of the Plant is classified as Class 1 Div 2 Group C,D area.
The specification states that ALL Conveinience receptacles(120V Single phase,Explosion proof type) shall be provided with Ground Fault Circuit Interrupters.
I checked out the Vendors(Crouse Hinds,Appleton),and they offer GFCI only for Group C,D areas.
They do not offer for Group B areas.
Is there any specific Hazard if we provide GFCI on Group B area receptacles.
Vendor is proposing that GFCI be mounted in the Distribution Panel(Ex type)-but this limits my operation since one breaker feeds 8 receptacles and a GF on one receptacle would render all 8 outlets without power.






RE: GFCI with 120V Receptacles in Hazardous Area
RE: GFCI with 120V Receptacles in Hazardous Area
job done.
Sometimes we look at what is infront of us and dont make the connection. Even if the GFI is outwith the area the socket is still protected.
This GFI breaking a fault current can produce quite a spark so its best to have it outta the area anyways, unless its one of those really expensive jobs.
Rugged
RE: GFCI with 120V Receptacles in Hazardous Area
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com