Används tillsammans med SS-EN IEC 61557-1, utg 3, 2022.低压配电系统(交流电压至1000伏 直流电压至1500伏)的电气安全 测试、测量或监测保护措施的设备 第2部分:绝缘电阻, Electrical safety in low voltage distributi
61557-2:2007 Electricalsafetyinlow voltagedistribution systemsupto 1000Va.c.and 1500Vd.c.— Equipmentfortesting, measuringor monitoringof protectivemeasures— Part2:Insulationresistance TheEuropeanStandardEN61557-2:2007hasthestatusofa BritishStandard ...
EN 61557-2-2007-MKD EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM ICS 17.220.20; 29.080.01; 29.240.01 EN 61557-2 March 2007 English version Supersedes EN 61557-2:1997 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - ...
标准号:IEC 61557-2:2019 EN-FR 标准名称:用于保护措施的测试、测量或监视的低压(AC不超过1000V,DC不超过1500V)配电系统的电气安全——第2部分:绝缘电阻 英文名称:Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring...
EN 61557-2:2007 购买 正式版 EN 61557-2:2007相似标准 GB/T 18216.2-2021交流1000V和直流1500V及以下低压配电系统电气安全防护措施的试验、测量或监控设备第2部分:绝缘电阻GB/T 18216.10-2022交流1000V和直流1500V及以下低压配电系统电气安全防护措施的试验、测量或监控设备第10部分:用于防护措施的试验、测量或监控...
Microsoft has released an update for Microsoft Skype for Business 2015 (Lync 2013) on January 2, 2019. This update also includes the new Skype for Business client. The version number of this update is 15.0.5101.1002. In addition to the release of the ...
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2010年一季度,大唐连城发电公司两台机组保持安全满发,发电量持续攀升。截至3月30日24时,该公司年度累计发电已达104182.2万千瓦时,完成了年度发电量计划的43.4%,打响了“双增双节”第一炮。 多措并举保电量。燃料是发电的根本,保障“口粮”是发电量的基础。该公司积极做好煤炭市场的调研和预测工作,认真分析市场变化...
Microsoft has released an update for Microsoft Skype for Business 2015 (Lync 2013) on January 2, 2019. This update also includes the new Skype for Business client. The version number of this update is 15.0.5101.1002. In addition to the release of the ...