In New Zealand the supply characteristics as per AS/NZ3000:2000 are 1.8.2.
230/400 system ± 6%. 243.8V max. and 216.2 min.
under 1.8.4. I quote:
Unless an electrical installation is specifically designed to operate under reduced voltage conditions, the voltage drop between the point of supply and any point of the electrical installation shall not exceed 5% of the nominal voltage of the supply.
where Point of supply is: 1.4.71
The junction of the electricity distributor's conductors with the consumer mains.
Frequency value is not quoted here under 1.8.2. perhaps Mike can give the details here.
Under the 1987 regs appendix I. 1984. reg 14.
the frequency shall be maintained except for momentary fluctuations within ± 1.5% of the standard frequency e.g. 49.25 and 50.75 Hz. (for 50 Hz network.)
[This message has been edited by RODALCO (edited 01-20-2006).]
