Grounding electrode conductor splices, taps - Electrician Talk - Professional Electrical Contractors Forum

MDShunk · 01-13-2007, 05:43 PM

250.30(A)(4)(c) requires that grounding electrode conductor taps be accomplished by specific means, including an irreversible compression connector.

250.64(C) requires that the grounding electrode conductor not be spliced, except by specific means, including an irreversible compression connector.

The picture below depicts an irreversible compression connector type of GEC tap.

itsunclebill · 01-16-2007, 10:56 AM

Most of the AHJs around here like to see the copper crimps used on GECs http://portal.fciconnect.com/portal/page?_pageid=335,1577178&_dad=portal&_schema=PORTA L&language=EN&cur_label=&categoryNodeName=ALUMINUM _COPPER_LINE_TAPS&ctx_titles_list=%7C%7C%7C&ctx_la bels_list=%7CProduct%20Finder%7CProduct_Type%7C&ct x_images_list=%7C%7Csaqqara/159.jpg%7Csaqqara/109.jpg&ctx_pages_list=%7CPRODUCT_FINDER_HOME%7CPR ODUCT_LIST%7CPRODUCT_TYPE&ctx_urlparams_list=%7Cca tegoryNodeName%3D%7CcategoryNodeName%3Dproduct_typ e%7CcategoryNodeName%3DOVERHEAD_PRODUCTS, like the tap or C crimps shown in copper

MDShunk · 01-16-2007, 05:09 PM

Quote:

Originally Posted by itsunclebill

Most of the AHJs around here like to see the copper crimps used on GECs.

I notice that the utilities generally use copper C-taps or copper H-taps for their grounding electrode taps. The alloy one in my picture is rated for copper or aluminium, so I just carry that one as truck stock. I use the same one to tap up (normally #6) triplex drops to detached garages and such. I also use them to extend short range cables when doing panel changes and service upgrades, when the jacket of the cable will reach the panel connector, but the conductors are too short to reach the breaker. If you tape them up, they are a very compact way to make a splice in a panel gutter on the heavier conductors.