Embedded Files
Common NEC Code References
110.12 - Workmanship code
110.12 Electrical equipment shall be installed in a professional and skillful manner.
110.14 - Do not combine AL and CU wire in connectors.
110.26 - Working clearances
240.24(A) Accessibility. Switches containing fuses and circuit breakers shall be readily accessible and installed so that the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than 2.0 m (6 ft 7 in.) above the floor or working platform.
240.81 - Overcurrent devices shall clearly indicate whether they are in the open “off” or closed “on” position. (can’t be upside down)
250.24(A)(5) - N and G should not be bonded in load side taps or other load side connections.
250.50 - All grounding electrodes present at a building must be tied together.
250.64 (C) - Irreversible crimp or Ground lugs.
250.64(E)(1) - Ferrous Metal Raceway is required to be bonded on both sides.
300.4 Conductors need to be protected from damage
312.5(C) exception 5- Romex needs to be at least 1/4in past the connector, but there is no max it can be into the box. Inspectors have failed us for having over 1.25” in a box, but this is not an NEC requirement.
312.8 - Able to use MSP as a raceway but needs a special sticker ( 110.21(B) )
314.3 Exception 1 - ALL metal raceways entering a non-metallic box, must have a ground bushing in the non-metallic box.
334.80 - NM type of cable has to be sized based off the 60 degree column (on the wire ampacity chart)
342.46 - Plastic bushings are needed on every penetration when bond bushings are not used.
358.24 - Only 4 bends are allowed between pull points (360 degrees).
358.30(B) - EMT will be supported every 10ft and within 3ft of termination points.
358.42 - All conduit fittings should be tightened, and properly rated for wet locations.
408.4(A) - The panel directory has to be filled out correctly.
408.7 - Seal unused spaces in a dead front.
690.13(A)(2) Where a disconnecting means for circuits operating above 30 volts is readily accessible to unqualified persons, an enclosure door or hinged cover that exposes energized parts when open shall have its door or cover locked or require a tool to be opened.
690.31(C)(1) - Wire management on the roof.
690.47 - Ground rods are required
705.11 - Line-side connection codes
705.12 - Load-side connection codes
705.12(B)(3)(2) - Load side breakers are required to be in the furthest position from the main breaker.
805.133 (A)(1)(C): Comms cables not allow in the same raceway as PV wires
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