
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 …
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 …
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 …
Ground rod horizontal in ditch - Electrician Talk
Feb 25, 2025 · Grounding in NEC has become a cruel joke. It’s like tge stupid 25 ohm maximum rule, OR just use 2 rods. Granted the Earth electrode isn’t as critical as they make it out to be, …
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 …
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 …
Table 300.5 interpretation - Electrician Talk
Oct 16, 2023 · For a given column of Table 300.5 ("minimum cover requirements") there is a potential overlap of the various rows. The one that concerns me at present is Column 2 (IMC …
NEC Requirements for Generators and Standby Power Systems Rule 220.87, Articles 445, 700, 701, and 702
Continuous Load: what is "maximum current" | Electrician Talk
From the 2023 NEC. Article 100 Definition: Continuous Load: A load where the maximum current is expected to continue for 3 hours or more. 210.20(A) Continuous and Noncontinuous Loads. …
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 …