Standard No.:	GB/T 778.2-2007
English Name:	Measurement of water flow in fully charged closed conduits—Meters for cold potable water and hot water—Part 2:Installation requirements
Chinese Name:	封闭满管道中水流量的测量饮用冷水水表和热水水表 第2部分:安装要求
Chinese Classification:	N12    Flow capacity and material level instrument
Professional Classification:	GB    National Standard
ICS Classification:	91.140.60 91.140.60    Water supply systems 91.140.60
Issued by:	AQSIQ; SAC
Issued on:	1996-1-1
Implemented on:	2008-5-1
Status:	superseded
Superseded by:	GB/T 778.5-2018 Meters for cold potable water and hot water—Part 5:Installation requirements
Superseded on:	2019-1-1
Superseding:	GB/T 778.2-1996 Measurement of water flow in closed conduits--Meters for cold potable water--Part 2:Installation requirements
Language:	English
File Format:	PDF
Word Count:	4500 words
Price(USD):	130.00
Delivery:	via email in 1~3 business day

GB/T778的本部分规定了单个水表、复式水表、同轴水表和连接管件的选择、安装,水表的特殊要求以及新水表或修理后水表首次使用的准则,以保证水表准确稳定测量和可靠读数。
GB/T778的本部分也适用于基于电或电子原理以及基于机械原理带电子装置、用于计量饮用冷水和热水实际体积流量的水表。本部分还适用于电子辅助装置。
GB/T778的本部分的建议适用于被定义为积算计量仪表、采用任何技术连续测定流过的水体积的水表。