Article 110.26 covering clearances in front of electrical equipment
applies. I worked on a couple like that, and I didn't like it. Very
hard to move the batteries, and Combined with H2S, you are in what OSHA
considers a confined hazardous space.
Another way to use that crawl space is to build a trap door access from
the floor above. This can work really nicely, and put the batteries
right under the inverter without violating article 110.26. I think I
saw a system that either Allan Sindelar or Windy Dankoff did like that.
I've tried it a few times, and everyone (customers and inspectors) was
happy. Here's a pic of some HUPs in a floor vault just below the inverter:
Ray Walters
Remote Solar
303 505-8760
On 7/30/18 8:37 AM, Dana wrote:
Safe working clearance is 6’-8”.
I have been confronted with this issue in the past taking over other’s
systems care. This is a head banger & a major safety issue if
something goes bad. If the batteries are 18-20” tall that only leaves
anther 28-30” between bottom side of the floor joist & the top of the
battery. Your face is way too close to a battery esp. if there is an
issue to address.
The installation is bent over back-heavy move situation. I am assuming
you have a dirt or gravel floor to move across?
It seems like a good use of space up front but the reality of the
install plagues you down the road.
If it is WLA batteries it is the worst of situations.
Even if this is not inspected, please avoid this situation.
----------------------------------------------------------------------------
Dana Orzel Great Solar Works, Inc.
*C - 208.721.7003 d...@solarwork.com*
Idaho Contractor - # 028765 Idaho PV # 028374
NABCEP # 051112-136 www.solarwork.biz <http://www.solarwork.biz>
_"Responsible Technologies for Responsible People since 1988" ___
*P*Please consider the environment before printing this email.
*From:* RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> *On
Behalf Of *Jerry Caldwell
*Sent:* Saturday, July 28, 2018 6:10 PM
*To:* re-wrenches@lists.re-wrenches.org
*Subject:* [RE-wrenches] Batteries in 4' tall crawl space
Wrenches,
I have a customer who wants to have batteries installed in a 4' tall
crawl space / short basement. Are there any accessibility code issues
with installing batteries in a crawl space? Does the NEC address this?
Thanks,
Jerry Caldwell
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