BS 6400-2-2006 最大容量不超过6m3/h煤气表的安装、调换、重新定位和拆除用规范.中等压力(二类家用煤气)

百检网 2021-08-04
标准号:BS 6400-2-2006
中文标准名称:*大容量不超过6m3/h煤气表的安装、调换、重新定位和拆除用规范.中等压力(二类家用煤气)
英文标准名称:Specification for installation, exchange, relocation and removal of gas meters with a maximum capacity not exceeding 6 m
标准类型:Q82
发布日期:2006/7/31 12:00:00
实施日期:2006/7/31 12:00:00
中国标准分类号:Q82
国际标准分类号:91.140.40
引用标准:BS 21;BS 476-7-1997;BS 746-2005;BS 6891-2005;BS 6400-1
适用范围:This standard specifies requirements for the installation, exchange,relocation and removal of credit or prepayment diaphragm andultrasonic gas meters with a maximum capacity not exceeding 6 m³/h.This part of BS 6400 is applicable to primary meter installations:a) supplied with 2nd family gases from medium pressure gasdistribution systems with a maximum operating pressure exceeding 75 mbar but not exceeding 2 bar and with a design maximum incidental pressure of 2.7 bar;b) only fitted downstream of the emergency control valve;c) that utilize a pressure control and protection system containedwithin a regulator assembly that is downstream of the emergencycontrol valve;d) where all gas fittings subjected to medium pressure have beenpre-assembled and where strength and gas tightness testing hasbeen undertaken on the regulator assembly at the factory;e) where the operating pressure at the outlet of the meter isnominally 21 mbar.Installation, exchange, relocation and removal of a secondary meterwith a maximum capacity of 6 m³/h is specified in BS 6400-1.Installation pipework is specified in BS 6891.Service pipes (including the emergency control valve) are specified in the Institution of Gas Engineers and Managers’ publication on gasservices, IGE/TD/4 [16].

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