Re: [RE-wrenches] Pole Mount PVC

2012-01-03 Thread Jeff Yago
Drake, This is a very common way to install this conduit, so I really would like to know how this inspector would route wire from the top of a pole down into a trench while passing through a concrete footer. We have inserted a one-size larger conduit elbow when we pour the concrete which

Re: [RE-wrenches] battery venting

2012-01-03 Thread Jeff Yago
Jeffrey, We installed many battery banks in basements for both backup and off-grid systems and in the past few years we have gone to battery “rooms” that were designed for this type use. These rooms include fire-rated interior drywall construction, an exterior window, a low intake vent

Re: [RE-wrenches] battery venting

2012-01-03 Thread jay peltz
Hi All, We've been having this discussion about battery box explosions. I would like a show of hands who has actually seen or truly known of a battery enclosure that has exploded due to hydrogen gas build up. And some specifics about that occurrence if possible. Thanks, Jay peltz power

Re: [RE-wrenches] Pole Mount PVC

2012-01-03 Thread Drake
At 01:48 PM 1/3/2012, you wrote: This is a very common way to install this conduit, so I really would like to know how this inspector would route wire from the top of a pole down into a trench while passing through a concrete footer. The instruction was to install the elbow above the

Re: [RE-wrenches] SMA Sunny WebBox mobile/wireless options

2012-01-03 Thread Glenn Burt
Send an email to Greg Smith at SMA and ask him for suggestions to get the ball rolling. He is one of their trainers very knowledgeable. greg.sm...@sma-america.com -Glenn -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org

Re: [RE-wrenches] Pole Mount PVC

2012-01-03 Thread Ray Walters
We've only had to use Schedule 80 out of the concrete, but never otherwise had a problem. Is his concern the structure of the concrete? It's ballast, not a pier that takes a compressive load. We've never had a problem in 2 decades. Ray On 1/3/2012 11:48 AM, Jeff Yago wrote: Drake, This

Re: [RE-wrenches] battery venting

2012-01-03 Thread Ray Walters
H2 is actually very difficult to contain, and can migrate through most materials. A super sealed, very small space, with a lot of charging source, its possible to reach combustion, but IMHO, you'd have to really try to create a system to do that. I've had a cell burn off its H2 once, so yes

Re: [RE-wrenches] Pole Mount PVC

2012-01-03 Thread Ray Walters
I've only done it that way when some Bozo forgot to install the conduit in the concrete. Definitely not the preferred method. Ray On 1/3/2012 3:19 PM, Drake wrote: At 01:48 PM 1/3/2012, you wrote: This is a very common way to install this conduit, so I really would like to know how this

Re: [RE-wrenches] battery venting

2012-01-03 Thread William Dorsett
While hydrogen gas will rise out of a vent, hydrogen sulfide is heavier than air and there is a possibility that it could grow to dangerous levels in a basement. At low levels you would be warned by the familiar rotten egg smell but at high levels your nose can become saturated and useless very