Standard No.:	GB 12940-1991
English Name:	Technical specification for silver-graphite electrical contacts
Chinese Name:	银石墨电触头技术条件
Chinese Classification:	K14    Electrician alloy parts
Professional Classification:	GB    National Standard
Source Content Issued by:	CSBTS
Issued on:	1991-06-06
Implemented on:	1992-3-1
Status:	superseded
Superseded by:	GB/T 12940-2008 Technical specification for silver-graphite electrical contacts
Superseded on:	2008-12-1
Abolished on:	2008-12-01
Target Language:	English
File Format:	PDF
Word Count:	6500 words
Translation Price(USD):	190.00
Delivery:	via email in 1~3 business day

本标准规定了含石墨3%、5%、10％的银石墨电触头的技术要求，试验方法，检验规则以及标志、包装与贮存。本标准适用于粉末压制烧结挤压，或烧结复压工艺生产的银石墨电触头。该系列产品主要用作低压开关电器的闭合、断开触头和滑动触头。