BS 6400-3-2007
最大容量不超过6m<上标>3/h煤气表的安装、调换、重新定位和拆除用规范.第3部分:低压和中压(第三类家用煤气)
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)
- 标准号
- BS 6400-3-2007
- 发布日期
- 2007年12月01日
- 实施日期
- 2007年12月31日
- 废止日期
- 无
- 中国标准分类号
- Q82
- 国际标准分类号
- 91.140.40
- 发布单位
- GB-BSI
- 引用标准
- 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
- 被代替标准
- 06/30086669 DC-2006 BS 6400-1997
- 适用范围
- 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.