CAP. 103]
Construction
of receptacles for electric lines.
Crossing pipes, etc.
Electric continuity of metal conduits,
etc., of high pressure line.
Precautions
to be taken when bare conductors are used.
High pressure lines laid
or
in
subways.
Electricity Supply.
Electric lines other than overhead lines.
15. All conduits, pipes, casings and street boxes used as receptacles for electric lines shall be constructed of durable material, and where laid under carriage-ways shall be of ample strength to prevent damage from heavy traffic, 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 to, any metallic substance, special precautions shall be taken by the company against the possibility of any electrical charging of the metallic substance from the line or from any metal conduit, pipe or casing enclosing the line.
17. All metal conduits, pipes or casings containing any high pressure electric line shall be efficiently connected with earth, and shall be so jointed and connected across all street boxes and other openings as to make good electrical connexion throughout their whole length.
18. (1) Where the conductors of electric lines placed in any conduit are not continuously covered with insulating material, they shall be secured in position, and no unfixed uninsulated material of a conducting nature shall be contained in the conduit. No such conductor shall be at a pressure exceeding 300 volts from earth.
(2) 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.
(3) The insulators of any such electric line shall be so disposed that they can be readily inspected; but this requirement shall not apply to any such insulators which before 2nd December, 1921, were not required by any regulation then in force to be so capable of ready inspection.
19. Every portion of any high pressure electric line above ground placed above the surface of the ground, or in any subway not in the sole occupation of the company, shall be completely enclosed either in a tube of highly insulating material embedded in brickwork, masonry or cement-concrete, or in strong metal casing efficiently connected with earth.
188
CAP. 103]
Construction
of receptacles for electric lines.
Crossing pipes, etc.
Electric continuity of metal conduits,
etc., of high pressure line.
Precautions
to be taken when bare conductors are used.
High pressure lines laid
or
in
subways.
Electricity Supply.
Electric lines other than overhead lines.
15. All conduits, pipes, casings and street boxes used as receptacles for electric lines shall be constructed of durable material, and where laid under carriage-ways shall be of ample strength to prevent damage from heavy traffic, 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 to, any metallic substance, special precautions shall be taken by the company against the possibility of any electrical charging of the metallic substance from the line or from any metal conduit, pipe or casing inclosing the line.
17. All metal conduits, pipes or casings containing any high pressure electric line shall be efficiently connected with earth, and shall be so jointed and connected across all street boxes and other openings as to make good electrical connexion throughout their whole length.
18. (1) Where the conductors of electric lines placed in any conduit are not continuously covered with insulating material, they shall be secured in position, and no unfixed uninsulated material of a conducting nature shall be con- tained in the conduit. No such conductor shall be at a pressure exceeding 300 volts from earth.
(2) 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.
(3) The insulators of any such electric line shall be so disposed that they can be readily inspected; but this require- ment shall not apply to any such insulators which before 2nd December, 1921, were not required by any regulation then in force to be so capable of ready inspection.
19. Every portion of any high pressure electric line. above ground placed above the surface of the ground, or in any subway not in the sole occupation of the company, shall be com- pletely inclosed either in a tube of highly insulating material embedded in brickwork, masonry or cement-concrete, or in strong metal casing efficiently connected with earth.
188
No comments yet.
Private notes are available after approval.