Standard No.:	JB/T 9639-1999
English Name:	Phase buses
Chinese Name:	封闭母线
Chinese Classification:	K41    Transformer
Professional Classification:	JB    Professional Standard - Machinery
Source Content Issued by:	State Bureau of Machine Building Industry
Issued on:	1999-8-6
Implemented on:	2000-1-1
Status:	valid
Superseding:	ZB K 11001-1988 ZB K 11001-1988
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	120.0
Delivery:	via email in 1~3 business day

本标准规定了封闭母线的品种、技术要求、结构、试验方法、产品的成套范围、包装、运输。本标准适用于电压为35kV及以下，电流为35000A 及以下的发电机、变电姑及其它输配电回路上使用的封闭母线及其成套设备。
本标准不括用于使用在有严重体腐蚀金属构件、绝缘件和有剧烈震动、摆动、冲击等场所的封闭母线。