Standard No.:	YD/T 728-1994
English Name:	Technical requirement and test method for telephone lightning protection
Chinese Name:	电话机防雷技术要求及测试方法
Chinese Classification:	M40    Telephone communication equipment
Professional Classification:	YD    Professional Standard - Telecommunication
Issued by:	CMII
Issued on:	1994-07-20
Implemented on:	1995-1-1
Status:	abolished
Abolished on:	2009-12-01
Language:	English
File Format:	PDF
Word Count:	3500 words
Price(USD):	100.00
Delivery:	via email in 1~3 business day

主题内容：本标准规定了电话机有关防雷的技术要求及测试方法。适用范围：本标准适用于脉冲式按键电话机、双音多频（ＤＴＭＦ）式按键电话机和接入公用电话网的手柄式电话机的模拟雷击试验，其他类型电话机（共电、录音、免提、扬声电话机）等亦可参照使用。不适用于雷电直击电话机及雷电等对电话机所引起电磁干扰的检验。