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(biāo)網(wǎng)！ 客服QQ：772084082 加入會員
當(dāng)前位置： 首頁 > 標(biāo)準(zhǔn)詳情頁

I.S. EN 50152-1:1997被替代

Railway Applications - Fixed Installations - Particular Requirements For A.c. Switchgear - Part 1: Single-phase Circuit-breakers With U[m] Above 1 Kv

出版：National Standards Authority of Ireland

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

專家解讀視頻

基本信息
標(biāo)準(zhǔn)編號： I.S. EN 50152-1:1997
發(fā)布時間：1998/5/15 0:00:00
標(biāo)準(zhǔn)類別：Standard
出版單位：National Standards Authority of Ireland
標(biāo)準(zhǔn)頁數(shù)：64
標(biāo)準(zhǔn)簡介

Applies to single-phase a.c. one-pole circuit-breakers designed for indoor or outdoor fixed installations for operation at frequencies of 16 2/3 Hz and 50 Hz on traction systems having a UNm above 1 kV up to 52 kV. Also applies to two-pole circuit- breakers when connected in the following manner: one pole supplying the connection to the contact line of the track, the second pole supplying the connection to the feeder cable which runs alongside the same track and is used to boost the track voltage at regular intervals in combination with autotransformers. The centre of this circuit is connected to earth. Does not address circuit-breakers with dependent manual operating mechanism.

替代本標(biāo)準(zhǔn)的新標(biāo)準(zhǔn)

I.S. EN 50152-1:2007

等同采用的國際標(biāo)準(zhǔn)

UNE EN 50152-1:2002 - Identical

SS EN 50152-1 Ed. 1 (1997) - Identical

NBN EN 50152-1 Ed. 1 - Identical

SN EN 50152-1:1997 - Identical

BS EN 50152-1:1999 - Identical

NEN EN 50152-1:1997 - Identical

DIN EN 50152-1 (1998-07) - Identical

NF EN 50152-1:1999 - Identical