ground resistance [RE-wrenches]

Jay Peltz, Peltz Power jay at asis.com
Wed Apr 23 16:28:26 PDT 2003


Hi Bill,

Theres got to be some easy way.  Maybe not the best way, but what about
using a power supply or some way to attempt to induce current?

jay
----- Original Message -----
From: "Bill Brooks" <billb at endecon.com>
To: <RE-wrenches at topica.com>
Sent: Wednesday, April 23, 2003 12:42 PM
Subject: RE: ground resistance [RE-wrenches]


> Jay,
>
> Grounding system tests are not often done in the field (frame to ground
> resistance). The only way a reading has any validity is if the resistance
> measurement is made at full ground current. Continuity or resistance
checks
> at zero current is almost meaningless. As soon as current flows,
resistance
> of all connections change--particularly simple metal-to-annodized aluminum
> contact.
>
> Bill.
>
>
> -----Original Message-----
> From: Jay Peltz, Peltz Power [mailto:jay at asis.com]
> Sent: Wednesday, April 23, 2003 8:11 AM
> To: RE-wrenches at topica.com
> Subject: ground resistance [RE-wrenches]
>
>
> HI Bill and John,
>
> In checking exsisting systems for ground bonding to mounting frames, what
> readings should I be looking for.  IE whats too high?
>
> Thanks,
>
> jay
>
> Peltz Power
>
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