With reference to 433.1.204 and cable as installed has min capacity of 20A if protected by a 30A or 32A. If the protective device is reduced to 20A how is the new minimum as installed capacity calculated or arrived at ? I've been looking in the Electrical Installation Design Guide, but the answer is avoiding my eyes.
Good point, but should it designed and installed with being continuously rated in mind. I agree that such use would be unlikely, but if there were an issue the designer maybe called upon to justify why it wasn't.
Good point, but should it designed and installed with being continuously rated in mind. I agree that such use would be unlikely, but if there were an issue the designer maybe called upon to justify why it wasn't.