BS 6400-3-2007
最大容量不超過6m<上標>3/h煤氣表的安裝、調換、重新定位和拆除用規范.第3部分:低壓和中壓(第三類家用煤氣)
Specification for installation, exchange, relocation and removal of gas meters with a maximum capacity not exceeding 6 m3/h – Part 3: Low and medium pressure (3rd family gases)
- 標準號
- BS 6400-3-2007
- 發布日期
- 2007年12月01日
- 實施日期
- 2007年12月31日
- 廢止日期
- 無
- 中國標準分類號
- Q82
- 國際標準分類號
- 91.140.40
- 發布單位
- GB-BSI
- 引用標準
- BS 21 BS 476-7-1997 BS 746-2005 BS 5482-1 BS 7671 BS EN 1359 BS EN 13785 BS EN 14236 BS EN 60079-10 BS EN ISO 10806
- 被代替標準
- 06/30086669 DC-2006 BS 6400-1997
- 適用范圍
- The standard specifies requirements for the installation, exchange, relocation and removal of credit or prepayment diaphragm and ultrasonic gas meters with a maximum capacity not exceeding 6 m3/h. NOTE 1 For the purposes of this standard, installation includes design, inspection and commissioning. It is recognized that each of these tasks can be performed by the same person. This part of BS 6400 is applicable to meter installations: a) supplied with 3rd family gases either: 1) from low pressure service pipework with a maximum operating pressure not exceeding 75 mbar and a design maximum incidental pressure of 350 mbar; or 2) from medium pressure service pipework with a maximum operating pressure exceeding 75 mbar but not exceeding 2 bar and a design maximum incidental pressure of 2.7 bar; b) only fitted downstream of the emergency control valve; c) that utilizes a meter regulator downstream of the emergency control valve; d) where all gas fittings subjected to medium pressure have been pre-assembled and where strength and gas tightness testing has been undertaken on the regulator assembly at the factory; e) where the operating pressure at the outlet of the meter is nominally 37 mbar. Installation pipework is specified in BS 5482-1 and LPGA Code of Practice 25 [14]. Service pipework (including the first emergency control valve) is specified in BS 5482-1 and the LPGA Code of Practice 22 [15] and LPGA Code of Practice 25 [14]. This standard does not cover pressure regulating installations installed in a service pipework upstream of the emergency control valve.