国产精品久久久在线观看_亚洲免费观看视频网站_国产盗摄视频一区二区三区_久久久国产一级 - 日本在线观看一区

歡迎來到寰標網(wǎng)! 客服QQ:772084082 加入會員
當前位置: 首頁 > 標準詳情頁

IEC 60331-21 : 1.0現(xiàn)行

TESTS FOR ELECTRIC CABLES UNDER FIRE CONDITIONS - CIRCUIT INTEGRITY - PROCEDURES AND REQUIREMENTS - CABLES OF RATED VOLTAGE UP TO AND INCLUDING 0,6/1,0 KV

出版:International Electrotechnical Committee

獲取原文 如何獲取原文?問客服 獲取原文,即可享受本標準狀態(tài)變更提醒服務!

專家解讀視頻

基本信息
標準編號: IEC 60331-21 : 1.0
發(fā)布時間:1999/4/28 0:00:00
標準類別:Standard
出版單位:International Electrotechnical Committee
標準頁數(shù):28
標準簡介

Gives the test procedure and performance requirement which includes a recommended flame application time, for cables of rated voltages up to and including 0,6/1,0 kV needed to maintain circuit integrity when subjected to fire under specified conditions. Describes the means of continuity checking arrangements, electrical testing procedure, method of burning and gives requirements for evaluating test results. Meant to cover low voltage power cables and control cables with rated voltage.

本標準替代的舊標準

IEC 60331 : 1ED 70