Understanding the 75°C vs 90°C column in Ampacity Table...
May 5, 2025 · The columns indicate how much amperage is required to raise the temperature of that size conductor to that column's temperature under standardized conditions. So a 2/0 …
EMT Fittings for Damp Locations. - Electrician Talk
Jan 4, 2025 · Here’s 2023 NEC Same wording. I included the Enhanced Content 225.22 Raceways on Exterior Surfaces of Buildings or Other Structures. Raceways on exteriors of …
High bays hanging from rigid conduit - Electrician Talk
Dec 4, 2024 · My AI NEC assistant tells me this is permissable. Yes, the National Electrical Code (NEC) allows luminaires (light fixtures) to be supported by a chain from a rigid conduit under …
Equipment room receptacle. - Electrician Talk
Jun 27, 2025 · NEC 2020, 210.63 (B) now requires a receptacle outlet in electrical rooms containing panelboards, switchboards, or switchgear. The intent is to ensure there’s a …
What are appliances and when is a disconnect required?
Nov 8, 2025 · So appliances, as defined by the NEC, are equipment for HVAC, clothes washing, electronics, food, lighting, chemicals, or "similar purposes" which are installed as part of, or in …
Orange, Brown and Yellow Conductor Colors - Electrician Talk
Nov 7, 2024 · The NEC requirements for marking color, are only for grounded and grounding conductors. The consensus here, least where I live, is 480v 3p Brown Orange Yellow. 277v is …
Line / load same conduit - Electrician Talk
Mar 2, 2025 · Is it against nec to run line and load in the same conduit to A fused 30 amp disconnect ? Running line and load in the same conduit is generally fine as long as it's rated …
NEC Requirements for Generators and Standby Power Systems Rule 220.87, Articles 445, 700, 701, and 702
The NEC does not define ranges, ovens or cooktops but based on manufacturers usage a range is a unit that has a cooktop and oven built together in one appliance. An oven is just a single …
Show window receptacles - Electrician Talk
Oct 15, 2021 · 2020 NEC 210.62 Show Windows. At least one 125-volt, single-phase, 15- or 20-ampere-rated receptacle outlet shall be installed within 450 mm (18 in.) of the top of a show …