[RE-wrenches] Conduit Bushings

[Kirk Herander]

Peter,

Bridgeport makes both split ring grounding bushings and plastic bushings in that size. No threading on to the connector required.

 

From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of William Miller
Sent: Saturday, March 04, 2017 3:08 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Conduit Bushings

 

Peter:

 

Would these work?

 

http://www.garvinindustries.com/conduit-fittings-supports/rigid-conduit-fittings/split-grounding-bushings/sgb50?gclid=CI7R876yvNICFQmIfgodVAkI3g

 

 

William


On Mar 3, 2017, at 11:14 AM, <peter.parrish at calsolareng.com> <peter.parrish at calsolareng.com> wrote:

Recently we were asked to do a combined inspection and engineering review of a 362.70 kWdc PV system using 5 Sungrow SG60KM-U inverters. We found issues like palm trees and air handling equipment shading significant parts of the arrays, electrician’s tape and palm fronds on the surface of the modules. But we also observed two significant Code violations: PV  source conductors lying on the surface of the torch-down roof and lack of bushings at the connectors on the ends of 2” LFMC. The PV source conductors got secured and we saw bushings threaded onto the ends LFMC connectors.

 

Upon close inspection we discovered that the bushings had been broken at one point on their circumference, no doubt to simplify their attachment. Their were 11 PV source circuits (22 current-carrying 10 AWG PV Wire conductors.)

 

Is this a NEC Code violation? If so, what section would we cite? It seems obvious that the bushing had been “modified”, but I would like to be more specific. Or does it come under the workmanship category?

 

Regards,

 

*	Peter Parrish

 

Peter T. Parrish, Ph.D., President

SolarGnosis

1107 Fair Oaks Ave.

Suite 351

South Pasadena, CA 91030

(323) 839-6108

Peter.parrish at solargnosis.com

_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches at lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
www.members.re-wrenches.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20170307/41d76eca/attachment-0003.html>