Singapore legislation
Regulation 3
Regulation 3
Voltages for supply
Subregulation 1
The supply of electricity by an electricity licensee shall be by means of alternating current, at a nominal frequency of 50 hertz.
Subregulation 2
The voltage of such supply shall be —
(a)
66,000 volts, 3 phase 3 wires;
(b)
22,000 volts, 3 phase 3 wires;
(c)
6,600 volts, 3 phase 3 wires;
(d)
400 volts, 3 phase 4 wires; or
(e)
230 volts, single phase.
Subregulation 3
The voltages referred to in paragraph (2) shall be subject to a variation of plus or minus 6%.
Subregulation 4
Notwithstanding paragraphs (2) and (3), an electricity licensee may, with the approval of the Authority, supply electricity at voltages other than those specified in paragraph (2) and the variation specified in paragraph (3).