110.11 Deteriorating Agents. Unless identified for use in
the operating environment,no conductors or equipment
shall be located in damp or wet locations; where exposed to
gases, fumes,vapors, liquids, or other agents that have a
deteriorating effect on the conductors or equipment; or
where exposed
I've mentioned it in the past, and got the impression it went over like a fart in church, but it seems to me buttoning up a battery box tighter than a bull's ass in fly season, and (hoping) mechanical ventilation mitigates this creation of a hazardous environment creates a Class I, Division 2 locat
Hi Dan
OK I'll bite.
1. By mechanical do you mean passive or active air movement?
2. If by hazardous you mean a hydrogen explosion, correct?
Thanks
Jay
Peltz power
Sent from my iPad
On Dec 14, 2011, at 4:46 PM, wrote:
> I've mentioned it in the past, and got the impression it went
Wrenches, wrenchers and wrenchees,
I've got a pump control question. Working on a stand-alone pumping station
in Haiti. I am planning on using a Grundfos SQflex pumping system with a
Cu 200 and a float switch. Also needed on site, is a small pressure pump
to force water through a purification s
Mac:
We've dealt with this. The best solution is altitude. If there is any
terrain on which you could put the tank, you save a lot of complexity.
Alternatively, can the well pump deliver into a pressure tank,
pre-pressurizing the water? This would also save a bunch of extra parts.
Willia
Mac,
No, I haven't done it, so take this with a grain of salt...
Here's a simple mechanical approach: have you considered a
dual-action float switch on the PV input to the CU200? Check out SJE
Rhombus at
http://www.sjerhombus.com/products/product_info.asp?id=33
Dan,
While the battery box, or maybe the whole room they are in, do fit the
definition of a Class 1 Division 2 location, I don't think it is
consistent with the intent of that section. Wring methods for hazardous
locations are specifically designed to keep the wiring isolated from the
hazard.
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