Hong Kong Regulations

ELECTRICITY SUPPLY REGULATIONS - REGULATION 24

Maximum power in case of underground sub-station, etc.

The maximum power supplied to any underground sub-station or street box shall
not, without the consent of the Director of Electrical and Mechanical
Services, exceed 30 kilowatts in the case of a sub-station or street box
containing a single transformer, or 75 kilowatts in the case of a sub-station
or street box containing 2 or more transformers. (L.N. 76 of 1982; L.N. 298 of
1982)