མ་་་
THE HONG KONG GOVERNMENT GAZETTE, JUNE 13, 1930.
No. 354.
Hong Kong.
235
Regulations made by the Governor in Council under section 3 (2) of the Electricity Supply Ordinance, 1911, Ordinance No. 18 of 1911, on the 11th day of June, 1930.
1. Regulation 13 of the regulations for securing the safety of the public, contained in the Schedule to the Electricity Supply Ordinance, 1911, is hereby rescinded and the following regulation is substituted therefor :-
13.
Part I. General.
Material of line
conductors.
Strength
of line
(1) Line conductors shall be copper, aluminum, or such other materials as may be approved by the Director of Public Works.
(2) All line conductors at the time of erection shall comply, as regards conductors. elongation, breaking load and elasticity, with the specification of the British
Engineering Standards Association then in force.
Minimum
size of line
conductor.
(3) The minimum permissible size for copper and other line conductors (other than service lines) shall be such as to have an actual breaking load of not less than 1,237 pounds, the equivalent minimum cross-sectional area and weight per mile for copper being as follows: ---
Conductor.
No. 8 S.W.G.
Cross-sectional area. 34. ins. 0.0201
Weight per mile. lbs.
409
The minimum permissible size of service line shall be such as to have an actual breaking load of not less than 816 pounds, the equivalent minimum cross-sectional area and weight per mile for copper being as follows:-
Conductor.
No. 10 S.W.G.
Cross-sectional area. sy. ins. 0.0129
Weight per mile. Ths.
262
Line conduc-
tors to be
(4) Line conductors shall be rendered inaccessible to any person from any inaccessible. building or other place without the use of a ladder or other special appliance.
Line conduc- tors crossing
Regard shall be had to the normal use by the occupier of any premises or land and where necessary (a) the height of the line conductors shall be in- creased to provide sufficient clearance for safety in accordance with such use, and () provision as hereinafter prescribed in paragraphs 14 or 17 shall be made to prevent danger.
(5) Where a line conductor crosses over or under, or is in proximity to other lines, any other overhead wire, precautions shall be taken by the company to prevent contact, due to breakage or otherwise, between the line conductor and the other overhead wire, or between the other wire and the line conductor.
Supports.
Provided that this paragraph (5) shall not be deemed to require the com- pany to take precautions against contact between a broken line conductor and other auxiliary conductors and earth wires carried on the same support and forming part of the same overhead line.
(6) Line conductors shall be attached to suitable insulators carried on supports of iron, steel or reinforced concrete. Special precautions shall be taken to prevent the corrosion of all metal work at or below the surface of the ground.