to or connected with the line, shall be duly and efficiently supervised and maintained as regards both electrical and mechanical conditions. Regulations. (29.) An aerial line shall not be permitted to remain erected Disused after it has ceased to be used for the supply of energy, unless the owner intends within a reasonable time again to take it into use. Electric Lines other than Aerial Lines. aerial lines to be removed. for electric lines. (30.) All conduits, pipes, casings, and street boxes used as Construction receptacles for electric lines shall be constructed of durable of receptacles 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 owner to prevent accumulation of gas in such receptacles. (31.) Where any electric line crosses, or is in proximity to, any Crossing metallic substance, special precautions shall be taken by the pipes, etc. owner against the possibility of any electrical discharge to the metallic substance from the line or from any metal conduit pipe or casing enclosing the line. metal (32.) All metal conduits, pipes, or casings, containing any Electric electric line shall be efficiently connected with earth; and shall continuity of be so jointed and connected across all street boxes and other conduits, openings as to make good electrical connexion throughout their pipes, or casings. whole length. when bare (33.) Where isolated lengths of metal conduit, pipe, or casing Precautions are used for the protection of any electric line at road crossings charging of against or similar positions, special precautions shall be taken to prevent short lengths of pipe, etc. the possibility of any electrical charging thereof. (34.) Where the conductors of electric lines placed in any Precautions conduit are not continuously covered with insulating material, to be taken they shall be secured in position, and no unfixed uninsulated conductors material of a conducting nature shall be contained in the conduit. No such conductor shall be at a higher potential than 300 volts. 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. In the case of any such electric lines laid in conduits after the date of the notice prescribing these regulations, the insulators shall be so disposed that they can be readily inspected. are used. (35.) Every portion of any high pressure electric line placed above the surface of the ground, or in any subway not in the sole occupation of the owner, 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. (36.) Where any high pressure electric line is laid beneath the surface of the ground, efficient means shall be taken to render it impossible that the surface of the ground or any neighbouring electric line or conductor shall become charged by leakage from the high pressure electric line. Street Boxes. (37.) In addition to the provisions contained in Regulation 30 as to the construction of receptacles for electric lines, the following regulations shall be observed with respect to the construction of 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 connected to strips of metal laid immediately underneath the adjacent roadway, 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 prevent 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 immediate escape of any gas which may by accident 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 gas, and if any influx or accumulation is discovered, the owner shall give immediate notice to the authority or company whose gas mains are laid in the neighbourhood of the street box. Transforming Stations. Regula tions. (38.) Transforming stations or points in a system of distribution, in which a high pressure supply is transformed for the Transforming stations. purpose of supply to a consumer, and which are not on the consumer's premises, shall be established in suitable places which are in the sole occupation and charge of the owner. Consumer's Premises. (39.) The owner shall be responsible for all electric lines, fittings, and apparatus belonging to him, or under his control, which may be upon a consumer's premises, being maintained in a safe condition and in all respects fit for supplying energy. (40.) In delivering the energy to a consumer's terminals, the owner shall exercise all due precautions so as to avoid risk of causing fire on the premises. Responsi owner for his bility of lines, etc., on consumer's premises. Fire risks. disconnectors. (41.) A suitable safety fuse or other automatic disconnector Main fuses or shall be inserted in each service line within a consumer's premises as close as possible to the point of entry, and contained within a suitable locked or sealed receptacle of fireproof construction, except in cases where the service line is protected by fuses in a street box. electric lines (42.) All electric lines and apparatus placed on any consumer's Treatment of premises shall be highly insulated and thoroughly protected and apparatus against injury to the insulation or access of moisture, and any on consumer's metal forming part of the electric circuit shall not, unless premises. 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. pressure (43.) Where the general supply of energy is a high pressure Transformers supply, and transforming apparatus is installed on a consumer's and high premises, the whole of the high pressure service lines, conductors, apparatus to and apparatus, including the transforming apparatus itself, so far be enclosed in as they are on the consumer's premises, shall be completely enclosed in solid walls or in strong metal casing efficiently connected with earth and securely fastened throughout. Arc Lighting. metal, etc. (44.) All arc lamps shall be so guarded as to prevent pieces of Arc lamps to ignited carbon or broken glass falling from them, and shall not be guarded. Regulations. Height from ground. Cut-off switch. be used in situations where there is any danger of the presence of explosive dust or gas. (45.) Arc lamps used in any street for public lighting shall be so fixed as not to be in any part at a less height than 10 feet from the ground. Arc lamps used in any street for private lighting shall be fixed so as not to be in any part at a less height than 8 feet from the ground, and shall be so screened as to prevent risk of contact with persons. (46.) A cut-off switch, fixed in a suitable locked receptacle, shall be provided for every high pressure arc lamp, of such pattern and construction as will provide : (a.) That the lamp can by its means be entirely disconnected from the supply circuit; (b.) That the switch itself can be safely operated in the dark without special precautions; and (c.) That there shall be no danger of any injurious electrical arcing, sparking, or heating being caused by the operation of the switch. FORM OF BYELAWS BY URBAN AUTHORITIES UNDER SECTION THIRTEEN OF PUBLIC HEALTH ACTS AMENDMENT ACT, 1890 (u). BYELAWS MADE IN PURSUANCE OF PART II. OF THE PUBLIC HEALTH ACTS AMENDMENT ACT, 1890, BY THE LOCAL BOARD FOR THE I. ALL posts, wires, tubes, and other apparatus which have been or may hereafter be stretched or placed over, along, or across any street for the purpose of any telegraph, telephone, lighting, railway signalling, or other purpose, and not exempted from the operation of these byelaws by or under the provisions of the abovementioned Act, must be stretched and placed in conformity with the following rules : (1.) Every wire or tube must be so stretched or placed as not to be at any point at a less height above the street than thirty feet where it crosses the street, and elsewhere than eighteen feet, except with the consent in writing of the urban authority. Provided that where a wire or tube is stretched or placed along a bridge which is carried over any street it may be stretched or placed at a less height than as above mentioned, so that it be not lower at any point than the structure of the bridge at that point. (2.) Every wire or tube must be securely attached to adequate supports of durable material and construction, and such supports must be situate at distances of not more than These byelaws do not (u) See the notes to s. 6 of Electric Lighting Act, 1882. apply to electric undertakings authorised by the Electric 1888. They will be applicable to the class of undertakings dealt with by s. 4 of the Act of 1888. See ante, p. 149. The Public Health Acts Amendment Act, 1890, is an adoptive Act merely. It does not apply to the administrative County of London. |