【法规名称】
【法规编号】 79817 什么是编号？
【正 文】
第13页 CAP 102A WATERWORKS REGULATIONS
|
[接上页] (b) if made of copper, comply with BS 699 for copper cylinders for domestic purposes or with BS 1566, Parts 1 and 2 for copper indirect cylinders. 9. Every water heater of thermal storage type or the calorifier type shall comply with the requirements of BS 3456, Part 102, Section 102.21 for stationary non-instantaneous electric water heater or with BS 853 for hot water calorifiers respectively. (L.N. 106 of 1999) 10. (Repealed L.N. 320 of 1992) 11. (Repealed L.N. 106 of 1999) 12. Every system incorporating an electric water heater of the thermal storage type shall be provided with- (a) a supply pipe that branches off from the feed pipe at a point above the top of the water heater, or some other device to prevent the water from draining down from the water heater if there is a failure at the source of water supply; (b) an anti-vacuum valve complying with BS 6282 or some other device to prevent heated water from being syphoned back to the supply pipe; and (c) a vessel to accommodate the expansion of heated water where that expansion is constrained by a non-return valve, or a similar device, incorporated at the inlet of the water heater. (L.N. 286 of 1990) (L.N. 252 of 1977) PART V FLUSHING APPARATUS 1. Every flushing cistern shall be of the valveless syphonic type unless otherwise approved by the Water Authority. A stop valve shall be fixed in a readily accessible position so as to control the supply to the cistern. 2. Flushing cisterns for water-closet fitments and slop sinks shall be capable of giving a flush of not less than 7.5 litres and not more than 15 litres of water on each occasion such fitment is used. (L.N. 106 of 1999) 3. The capacity of the flushing cistern in the case of trough water-closets and urinals shall be approved by the Water Authority subject to the discharge in the case of trough water-closets being not less than 9 litres of water for every metre of the channel and the discharge in the case of urinals being not less than 4.5 litres of water for every basin or stall, or in the case of a trough urinal, every metre thereof. 4. The internal diameter of flushing pipes shall- (a) in the case of water-closet fitments, trough water-closets and slop sinks, be not less than 30 mm; (b) in the case of urinals (other than trough urinals), be not less than 15 mm for each basin and stall; and (c) in the case of trough urinals, be not less than 15 mm for every metre thereof. 5. Every flushing apparatus shall be operated by hand, except in cases where written permission from the Water Authority has been granted for the installation of automatic flushing. In such cases the method of control and the amount and frequency of the flushes shall be decided by the Water Authority. 6. Every flushing cistern operated by hand shall be provided with a ball valve so arranged as to refill the cistern within 2 minutes. 7. Flushing cisterns shall in all cases be supplied from storage cisterns and such storage cisterns shall not be used to supply any other apparatus, appliance or fitting. Every such cistern shall be fitted with a suitable close fitting cover and provided with adequate access to enable the cistern to be entered and cleaned. 8. Every flushing cistern shall have an overflow which shall discharge in a conspicuous position. 9. Flushing apparatus without flushing cisterns shall not be used. (L.N. 252 of 1977) PART VI BATHS, LAVATORY BASINS AND SINKS 1. Every inlet to a bath, lavatory basin or sink shall be distinct from, and unconnected with, any outlet therefrom and every outlet for emptying such bath, lavatory basin or sink shall be provided with a well-fitting and easily accessible watertight plug or some other equally suitable apparatus. 2. The level of the point of discharge of hot or cold water to a bath, lavatory basin or sink shall be above the level of the overflow, or if there be no overflow, of the top edge of the bath, basin or sink. 3. The water supply to any bidet, sitz bath, slop or sluicing sink or similar apparatus, shall, if the inlet is liable to be submerged, be provided by- (a) a storage cistern supplying water to such apparatus only; (b) a storage cistern for flushing purposes only; or (c) a hot water distribution system supplying such apparatus only. 4. All taps supplying baths, lavatory basins, sinks or similar apparatus shall have a stop valve fixed in a readily accessible position to control the supply to each fitting or branch pipe supplying a range of fittings. |
- 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！