【法规名称】
【法规编号】 79817 什么是编号？
【正 文】
第10页 CAP 102A WATERWORKS REGULATIONS
|
[接上页] 3. Charge for additional copy of examination report .......................... $2220 $ 185 $ 380 $ 875 $ 425 $ 840 $ 5.6 * For the purpose of this Part, "standard test" (标准测试) means a test to determine any one of the following- Turbidity; Ortho-phosphate; Total hardness; Oxygen absorbed value; Conductivity; Manganese; Chlorides; Residual chlorine; Nitrite nitrogen; pH value; Fluorides; Calcium; Suspended solids; Ammoniacal nitrogen; Aluminium; Sulphates; Total alkalinity; Nitrate nitrogen; Colour; Iron; Magnesium; Dissolved solids; Albuminoid nitrogen; Silica. (L.N. 176 of 1996) Cap 102A Sched 2 [regulation 19] PART I PIPES AND FITTINGS 1. (1) Pipes on a fresh water fire service shall be made of cast iron, steel or copper. (2) Pipes and fittings on a salt water fire service shall be made of such material as the Water Authority, in consultation with the Director of Fire Services, thinks fit. (3) Pipes on a fresh water inside service shall be made of cast iron, unplasticized P.V.C., polybutylene, steel, copper, polyethylene, crosslinked polyethylene or chlorinated polyvinyl chloride. (L.N. 673 of 1994) (4) Pipes on a salt water inside service shall be made of cast iron or unplasticized P.V.C. (L.N. 320 of 1992) 2. No pipe shall be less than 20 mm diameter, except that a branch pipe may be 15 mm diameter if the pipe run is short and the pipe supplies only one draw-off point. 3. No bend or curve shall be made in any pipe so as to diminish the waterway or alter the internal diameter of the pipe in any part. 4. Changes of direction for a pipe of less than 40 mm diameter shall be effected by slow bends and no elbows shall be used. 5. (a) Cast iron pipes shall comply with BS 4622 for grey iron pipe and with BS 4772 for ductile iron pipe, except that they may incorporate a mechanical or automatic joint of approved design. (b) Cast iron pipes to BS 4622 and ductile iron pipes to BS 4772 shall be of a class appropriate to the duty required. 6. (Repealed L.N. 320 of 1992) 7. Cast iron fittings for use with cast iron pipes shall comply with BS 4622 for grey iron fittings and with BS 4772 for ductile iron fittings, except that they may incorporate a mechanical joint of approved design. Fittings shall be of a class appropriate to the duty required. (L.N. 320 of 1992) 8. (Repealed L.N. 252 of 1977) 9. Steel pipes shall- (a) be galvanized; (b) comply with BS 1387 for 'Medium' tubes and tubulars; and (c) if on a fresh water inside service, be lined with internal unplasticized polyvinyl chloride or polyethylene lining approved by the Water Authority. (L.N. 673 of 1994) 10. Malleable cast iron fittings for use with steel pipes shall be galvanized and shall comply with BS 143 and 1256 for malleable cast iron and cast copper alloy pipe fittings. (L.N. 320 of 1992) 11. Wrought fittings of iron or steel for use with steel pipes shall be galvanized and shall comply with BS 1740, Part 1 for wrought iron pipe fittings. (L.N. 320 of 1992) 12. Unplasticized P.V.C. pipes and fittings shall comply with BS 3505 for Class 'D' tubes or equivalent. 13. Copper pipes incorporating screw joints shall comply with BS 2871, Part 2, for copper tubes (heavy gauge) for general purposes and screw thereof shall comply with BS 61, for screw threads for copper tubes. 14. (Repealed L.N. 320 of 1992) 15. Cast copper alloy fittings, for copper pipes screwed in accordance with Table 1 of BS 61, shall comply with the relevant requirements of BS 143 and 1256 for malleable cast iron and cast copper alloy pipe fittings. (L.N. 320 of 1992) 16. Copper pipes to be jointed with compression fittings or capillary fittings or by bronze or autogenous welding shall comply with BS 2871, Part 1. 17. Capillary fittings or compression fittings shall comply with BS 864, Parts 2 for capillary and compression fittings of copper and copper alloy and compression fittings for pipes laid under the ground shall be Type B. (L.N. 320 of 1992) 18. Polybutylene pipes and fittings shall comply with BS 7291 Parts 1 and 2. (L.N. 673 of 1994) 19. Polyethylene pipes shall comply with BS 6730 and BS 6572. (L.N. 673 of 1994) 20. Crosslinked polyethylene pipes and fittings shall comply with BS 7291 Parts 1 and 3. (L.N. 673 of 1994) 21. Chlorinated polyvinyl chloride pipes and fittings shall comply with BS 7291 Parts 1 and 4. (L.N. 673 of 1994) (L.N. 252 of 1977) PART II TAPS AND VALVES 1. Draw-off taps and stop valves of the ordinary screw-down pattern and of nominal size not exceeding 50 mm shall comply with BS 1010, Part 2 for draw-off taps and stop valves. 2. Draw-off taps and stop valves not being of the ordinary screw-down pattern, shall be capable of resisting a pressure of at least 2000 kPa, and every valve, spindle, and other internal part and, where the nominal size of the tap or valve does not exceed 50 mm, the body thereof, shall be made of a corrosion resisting alloy. 3. Sluice valves of nominal size of 50 mm or more shall comply with BS 5163 for sluice valves for waterworks purposes of PN 10 or PN 16 according to the pressure to which the valve will be liable to be subjected under working conditions. |
- 此法规有错误，我来纠正。请点击在此 提交错误内容或者您纠正的内容！