Standard No.:	YD/T 741-2002
English Name:	Specification of Positive Temperature Coefficient (PTC) thermistors for the over-current protection of communications installations
Chinese Name:	通信设备过电流保护用正温度系数(PTC)热敏电阻器技术要求
Chinese Classification:	L13    Resistor
Professional Classification:	YD    Professional Standard - Telecommunication
Issued by:	CMII
Issued on:	2002-7-22
Implemented on:	2002-7-22
Status:	valid
Superseding:	YD/T 741-1995
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	180.00
Delivery:	via email in 1~3 business day

本标准规定了通信设备过流保护用直热式阶跃型正温度系数(PTC)热敏电阻嚣(以下简称PTC热敏电阻器)的名词术语、产品分类、技术要求、试验方法、检验规则、标志、包装、运输及贮存等规则。本标准适用于交换机、接入网设备、总配线架过电流保护用PTC热敏电阻器的检测和验收。其他通信设备(如通信终端)过电流保护用PTC热敏电阻器也可参照使用。本标准不涉及PTC热敏电阻器的尺寸、夹具和安装。