Hi Mac;
I'm not sure I understand how you would extend the wires without
splicing. BTW you only need to extend the hots, not the neutrals or
grounds.
*NEC 312.8* sets a cross sectional area limit of 75% for the splices and
wires inside an OCPD Enclosure.
I just found these inline splices to use instead of the infamous wire
nut: http://www.idealindustries.co.uk/product/12/557/67825/.html
These should make for a cleaner install, and take less precious space,
but I haven't tried them yet.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 9/8/2016 6:00 PM, Mac Lewis wrote:
Hello wrenches,
We run into many scenarios where we are locating a critical load panel
adjacent to an existing service to make it easy to move the loads.
I've always taken it for granted (as have the electricians that we
use) that we can't do a splice in the main panel and extend the load
wiring to the critical load panel. Is there code violation for doing
a splice in the main panel and extending the leads to the critical
panel? You would be treating the service panel as a
pass-trough/splice box for those critical loads.
It makes me wonder because of all of the prewired transfer switch
packages with wire whips already attached that seem to be designed to
do just that.
Code references would be appreciated.
Thanks
--
Mac Lewis
*
"Yo solo sé que no sé nada." -Sócrates
*
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