400 Volt receptacles shall be 5-pole, 3-phase + N + PE, 63 ampere, and installed in convenient locations within 30 m radius of any process unit structures or areas in which portable power units are required.
400 Volt receptacles shall be 5-pole, 3-phase N PE, 63 ampere, and installed in convenient locations within 30 m radius of any process unit structures or areas in which portable power units are required.