electriciansd
Member
What type of sump pump can be used in a class 2 area of a grain elevator
what type of sump pump can be used in class 2 area of grain elevator
- Thread starter electriciansd
- Start date
- Status
- Location
- Mission Viejo, CA
- Occupation
- Professional Electrical Engineer
While we can reasonably assume Group G, is this Class II, Division 1 or 2?
The pump itself is outside the NEC's scope. The pump motor is dependent on the Division.
In either case, See Section 502.125.
Bob, you are definitely an expert on hazardous locations and I have learned quite a bit reading your postings, Thanks!!
electriciansd
Member
This would be considered Class II Div.I Group G. So far I have talked to 3 manufacturers of sump pumps and the do not have a pump the is designed to be installed in this location.
hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
could you use a non-grinder ejector pump, as far as I know they are all listed for classified areas because of how some locations classifies a sewage pit.
Many come with the same plug and float systems used on sump pumps.
Many come with the same plug and float systems used on sump pumps.
- Location
- Mission Viejo, CA
- Occupation
- Professional Electrical Engineer
As I mentioned earlier, the pump itself is outside the scope of the NEC. However, UL lists plenty of motors for Class II, Division 1. The link is to UL's Guide Information. See "view listings" in the upper left to see the manufacturers.
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
Probably would be easier to use a different kind of pump located outside the hazardous location, and locate the pickup inside the area.
weressl
Esteemed Member
Self-priming pump? More difficult AND costly.
Should be no problem of finding the listed motor.
If it is a submerged pump and a level swicth assures that it is always covered, then you wouldn't even have to worry about the listing.
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