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- Understanding the 75°C vs 90°C column in Ampacity Table. . .
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 XHHW will reach 75°C at 135A and 90°C at 150A The wire insulation is good for 90°C, so for sizing the wire, we can use the
- Table 300. 5 interpretation - Electrician Talk
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 and RMC conduit) If it's buried in a trench below 2" of concrete or equivalent, but also goes under a parking area in a
- NEC Requirements for Generators and Standby Power Systems
NEC Requirements for Generators and Standby Power Systems Rule 220 87, Articles 445, 700, 701, and 702
- High bays hanging from rigid conduit - Electrician Talk
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 specific conditions
- PowerPoint Presentation
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 or double appliance for baking , roasting, etc A cooktop is just the burners without the oven
- 210. 8 (F) Outdoor Sauna 2023NEC - Electrician Talk
I am mainly looking for opinions here I feel best leaving GFCI protection installed however in the eyes of the NEC would 210 8 (F) apply since the “outlet” is the heater which is located INSIDE of the structure? This world is held together with tape, glue and hope
- Circuits from multiple sources in the same conduit.
Is there any code against having wires from multiple power sources using the same conduit? I know article 300 says your aloud to use the same conduit for different voltages as long as all wires are rated for highest voltage present, and different voltages would mean different power sources I
- Ground rod horizontal in ditch - Electrician Talk
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, or they would just stop with saying 25 ohms or less and basically we don’t care how you get there I’m not a fan though of anything but a single point ground rod
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