Hong Kong Regulations

ELECTRICITY SUPPLY REGULATIONS - REGULATION 28

Treatment of service lines and apparatus on consumer's premises

All service lines and apparatus placed on a consumer's premises shall be
highly insulated and thoroughly protected against injury to the insulation or
access of moisture, and any metal forming part of the electric circuit shall
not, unless efficiently connected with earth, be exposed so that it can be
touched. All electric lines shall be so fixed and protected as to prevent the
possibility of electrical discharge to any adjacent metallic substance.