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10-21-2018, 06:36 AM #1
Low voltage wiring within panel - question
While I know to write up the transformer located within the panel due to low voltage side being on the interior, I am inclined to apply same rule on the other wires from the same run (coiled in bottom) that go to the load meter sensor rings around the two main wires for the demand metering unit. The home no longer uses the demand meter since the utility stopped their discounts for all electric homes here, but was this improperly installed to begin with? 1991 home in Ohio. Do these demand units have allowances I should know of?
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10-23-2018, 08:39 AM #2
Re: Low voltage wiring within panel - question
"725.136 Separation from Electric Light, Power, Class 1,
Non–Power-Limited Fire Alarm Circuit Conductors, and
Medium-Power Network-Powered Broadband Communi-
cations Cables.
(A) General. Cables and conductors of Class 2 and Class 3
circuits shall not be placed in any cable, cable tray, com-
partment, enclosure, manhole, outlet box, device box, race-
way, or similar fitting with conductors of electric light,
power, Class 1, non–power-limited fire alarm circuits, and
medium-power network-powered broadband communica-
tions circuits unless permitted by 725.136(B) through (I).
(B) Separated by Barriers. Class 2 and Class 3 circuits
shall be permitted to be installed together with the conductors
of electric light, power, Class 1, non–power-limited fire alarm
and medium power network-powered broadband communica-
tions circuits where they are separated by a barrier." No mixing of high and low voltage conductors.
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10-24-2018, 01:26 PM #3
Re: Low voltage wiring within panel - question
That article does not apply. The wires are not fire alarm nor broadband communication wiring.
All answers based on unamended National Electrical codes.
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