[RE-wrenches] Cable tray

[Ryan]

I have to agree with Dan. Making disconnects that can open 1000vdc under 
load as compared to 600vdc under load will be far more pricey. To "Rate" 
all gear for 1000vdc will be prohibitive.


Ryan

Ryan Stankevitz
Technical Support Manager
MidNite Solar Inc.
ryan at midnitesolar.com
360-403-7207 XT 151
Skype ID ryan.midnite



On 3/31/2013 12:09 PM, Exeltech wrote:
> Hello Chris,
>
> From a manufacturer's perspective .. you're incorrect on all assumptions.
> (Sorry.)
>
> It costs more to make higher-voltage anythings.
>
> Higher voltage means: Clearance / creepage distances are larger (thus 
> bigger
> parts or products).  Insulation must be thicker (or have a higher 
> dielectric rating).
> This results in more rigorous (consequently more expensive) UL 
> testing.  Etc.
> All adds up.
>
> Dan
>
>
> --- On *Sun, 3/31/13, Chris Mason /<cometenergysystems at gmail.com>/* wrote:
>
>
>     From: Chris Mason <cometenergysystems at gmail.com>
>     Subject: Re: [RE-wrenches] Cable tray
>     To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
>     Date: Sunday, March 31, 2013, 8:21 AM
>
>     As we see more 1000V installations, chances are that 600V rated
>     equipment will find its way into installations it is not rated
>     for. To avoid problems and so we don't need two SKUs and lots more
>     inventory, the manufacturers need to move all their product to
>     1000V ratings. I suspect it does not cost more to make 1000V wire
>     than 600V, similarly disconnects, fuses, fuse holders and connectors.
>
>
>
>
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