[RE-wrenches] 1000V System Wiring Details

[Solarguy]

Your typical scaffolding walkboard is rated at 75 lb/ft². 
Jim Duncan 

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of William
Miller
Sent: Wednesday, March 26, 2014 11:15 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] 1000V System Wiring Details


August:

What about the expense of servicing and/or replacing roof mounted inverters?
There is a very finite limit on the weight that is practical/legal to haul
up a ladder. Sure it's easy to toss an inverter on the roof at the install
when there is already a lift in the budget to hoist the PV.  Later on your
crew might be tempted to slide a replacement inverter up the ladder, but
this is not always safe or OSHA legal.

It's at least $400 to bring a scissors lift and a reach lift is about $600.
Is this really good economics / safety practice?

William


Miller Solar

> On Mar 26, 2014, at 7:31 PM, August Goers <august at luminalt.com> wrote:
> 
> . Going forward, we are going to strive to put inverters on the roof to
minimize the expense of dealing with the 1000 V runs. 
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