9
PUBLIC RECORD OFFICE
Reference :-
LLCO. 882
9
PUBLIC RECORD OFFICE, LONDON
ALLY WITHOUT PERMISSION OF THE BE REPRODUCED PHOTOGRAPHIC-
COPYRIGHT PHOTOGRAPH-NOT TO
upon so
ceasing they satisfy the Director of Public Works that they intend to bring it into use again within a reasonable time.
14. Dave as above provided overhead lines shall not Other le erected except in accordance with such regulations as overhead the Governor in Council may from time to time prescribe.
Electric Lines other than Overhead Lines.
lines.
receptacles
15. All coluits, pipes, casings, and street boxes used Construc- as receptacles for electric lines shall be constructed of tion of
shall for electric durable material, and where laid under carriage ways be of ample strength to prevent damage from heavy traffic, lines. and reasonable means shall be taken by the company to prevent accumulation of gas in such receptacles.
16. Where any electric line crosses, or is in proximity Crossing
to, any metallic substance, special precautions shall be pipes, &c. taken by the company against the possibility of any elec- trical charging of the metallic substance from the line or from any metal conduit, pipe, or casing enclosing the line.
Electric
17. All metal conduits, pipes, or casings containing any continuity high pressure electric line shall be efficiently connected of metal jointed and connected across all conduits, with earth, and shall be so
casinge of street boxes and other openings as to make good electrical Pipes, and connection throughout their whole length.
high pres- sure line.
when bare
18. Where the conductors of electric lines placed in any Precau- conduit are not continuously covered with insulating tions to be material they shall be secured in position, and no unfixed taken uninsulated material of a conducting nature shall be con conductors tained in the conduit. No such conductor shall be at a are used. pressure exceeding 300 volts from earth.
Adequate precautions shall also be taken to ensure that no accumulation of water shall take place in any part of the conduit, and to prevent any dangerous access of moisture to the conductors or the insulators.
The insulators of any such electric line shall be so dis- posed that they can be readily inspected, but this require- ment shall not apply to any such insulators which before the date of these regulations were not required by any regulation then in force to be so capable of ready inspection.
sure lines
19. Every portion of any high pressure electric line High pres- placed above the surface of the ground, or in any subway laid above not in the sole occupation of the company, shall be com- ground or pletely enclosed either in a tube of highly insulating insubways. material embedded in brickwork, masonry, or cement concrete, or in strong metal casing efficiently connected with earth.
surface of
20. Where any high pressure electric line is laid beneath Protection the surface of the ground, efficient means shall be taken for the to render it impossible that the surface of the ground or the ground any neighbouring electric line or conductor shall become and elec charged by leakage from the high pressure electric line.
trio lines.
control of
21. A high pressure electric line shall not be used for Comple- the supply of energy before it has been completely laid, tion and properly jointed, examined, and tested, or until it is in high pres the sole charge of the company, and every such line shall sure lines. turing its use be in the sole charge of the company.
Sub- stations.
Street buxes.
Maximum
power in case of under. ground sub-
Sub-stations and Street Boxes.
22. Sub-stations shall be established in suitable places and shall be in the sole occupation and charge of the company. Sub-stations shall be erected above ground wherever possible, but where necessarily underground, due provision shall be made for ventilation and for drainage.
23. In addition to the provisions contained in regu- lation 15 as to the construction of receptacles for electric lines, the following conditions shall be observed with respect to street boxes :-
(a.) The covers of all street boxes shall be so secured that they cannot be opened except by means of a special appliance.
(b.) The covers of all street boxes containing high pressure apparatus other than cables shall be con- nected to strips of metal laid immediately under- neath the street, and efficient means shall be taken to render it impossible that the covers or other exposed parts of these boxes, or any adjacent material forming the surface of the street, shall become electrically charged, whether by reason of leakage, defect, or otherwise.
(c.) Where street boxes are used as transformer chambers, reasonable means shall be taken to pre- vent as far as possible any influx of water, either from the adjacent soil or by means of pipes; and in the case of any such street box exceeding one cubic yard in capacity, ample provision shall be made, by ventilation or otherwise, for the imme- diate escape
of
which may by sccident any gas have obtained access to the box, and for the prevention of danger from sparking.
(d.) All street boxes shall be regularly inspected for
the presence of and if
gae,
any
influx or accumu-
lation is discovered, the company shall give imme- diate notice to the company whose gas maine are laid in the neighbourhood of the street box. (a.) Where inains at different pressures pass through the same street box they shall be readily dis tinguishable from one another.
24. The maximum power supplied to any underground sub-station or street box shall net, without the consent of the Director of Public Works, 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 station, &c, street box containing two or more transformers.
Responsi- bility of Company
for their
lines, &c.
on oon- sumer's premises. Fire risks.
Consumer's Premises.>
25. The company shall be responsible for all electric lines, fittings, and apparatus belonging to them, or under their control, which may be upon a consumer's premises, being maintained in a safe condition and in all respects fit for supplying energy.
36. In delivering the energy to a consumer's terminals the company shall exercise all due precautions so as to avoid risk of causing fire on the premises.
18100
B