Grounds [RE-wrenches]

[Allan Sindelar, Positive Energy, Inc.]

----- Original Message -----
From: Jeffrey Wolfe, Global Resources

> The only time we don't tie all grounds together is on a remote array. Then
> we sometimes ground the array, and only run two conductors inside. The
> neutral is NOT connected to ground at the collectors.
>
Jeffrey,
    If I understand him correctly, according to John Wiles the array would
be described in the code as a "separately derived structure" in your
application. It is correct to eliminate the grounding conductor between two
buildings (or, in this case, between the array and the building), provided
that each structure is separately grounded to a rod AND the DC
negative-to-ground bonding issue is resolved, whether through bonding the
array input negative or by breaking both ungrounded conductors with a 2-pole
disconnect. The way you are describing would make your approach
non-compliant, although it makes "common-sense" sense to me.
Allan at Pos E

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

==^================================================================
EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9
Or send an email To: RE-wrenches-unsubscribe at topica.com
This email was sent to: michael.welch at homepower.com

T O P I C A -- Register now to manage your mail!
http://www.topica.com/partner/tag02/register
==^================================================================