Paragraph 8 Ployphase metersI1
Northern Ireland
(1)
very polyphase meter shall be tested on a circuit having a phase relationship for which that meter is designed. However, three phase, four wire polyphase meters may be tested without current in the neutral conductor.
(2)
Polyphase meters shall be tested by using—
(a)
a polyphase kilowatt-hour energy standard;
(b)
2 or 3 singlephase kilowatt-hour energy standards; or
(c)
2 or 3 singlephase wattmeters.
Annotations
Commencement
- I1
Sch. 1 para. 8 in operation at 1.2.1999, see reg. 1