[RE-wrenches] Cable tray

[Exeltech]

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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