Outdoor Nylon Sheathed Telephone Wires for Communication Lines
发布日期:1963-06-11 实施日期:1987-11-28
Technical specification of mobile partial discharge on-line monitoring device for gas-insulated metal-enclosure switchgear
适用范围:本规范规定了气体绝缘金属封闭设备移动式局部放电在线监测装置(以下简称监测装置)的总体构成、技术要求、试验方法、检验规则、标志、贮存以及运输等。本规范适用于额定电压为72.5kV~1100kV的气体绝缘金属封闭设备(包括GIS、H...
发布日期:2018-02-06 实施日期:2018-02-09
Test Method for Ammonia Resistance of Electric Motor Insulation Systems for Hermetic Refrigeration Compressors
适用范围:本标准规定了封闭式制冷压缩机用耐氨电动机(以下简称氨电机)耐氨性能的试验方法。本标准适用于封闭式制冷压缩机用氨电机绝缘系统与含有冷冻机油的制冷剂(液氨)的相容性试验。
发布日期:2020-04-20 实施日期:2020-04-20
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing,measuring or monitoring of protective measures. Part 16:Equipment for testing the effecti...
适用范围:IEC 61557-16:2014 defines performance requirements for test and measurement equipment to determine the effectiveness of the protective measures of electrical measures for electrical equipment and/or me...
发布日期:2014-12-11 实施日期:2014-12-11
发布日期:2013-01-22 实施日期:2013-01-22
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 12: Performance measuring and mo...
适用范围:Specifies requirements for combined performance measuring and monitoring devices that measure and monitor the electrical parameters within electrical distribution systems. These requirements also defin...
发布日期:2007-08-15 实施日期:2007-08-15
Insulation co-ordination - Part 4: Computational guide to insulation Co-ordination and modeling of electrical networks
适用范围:GB / T 3n 的本部分规定了进行绝缘配合数字化计算的导则,并提出了普遍认可的建议: ― 电力系统的数字模型; ― 实施适用于数值计算的确定性法和统计法。本部分适用于给出进行绝缘配合的计算方法、建模和示例方面的资料,以便...
发布日期:2010-11-10 实施日期:2011-05-01
发布日期:2013-01-22 实施日期:2013-01-22
Amendment 1:Rotating electrical machines. Part 18:Functional evaluation of insulation systems. Section 1:General guidelines
发布日期:1996-11-14 实施日期:1996-11-14
发布日期:2015-03-06 实施日期:2015-03-06
Guide for the application of insulation coordination
实施日期:1999-06-26
Insulation co-ordination for equipments of ±800kV high voltage direct current converter stations
适用范围:本标准规定了设备绝缘水平选择原则,给出了具有代表性的耐受电压值,在制定各设备标准时,应根据本标准的要求,确定设备的绝缘水平。 本标准适用于士 800 玉 V 直流换流站换流设备和直流场设备的绝缘配合。
发布日期:2012-06-29 实施日期:2012-11-01
Subsidiary Methods of Test for Pressure-Sensitive Adhesive Tapes for Electrical Insulation
发布日期:1988-04-20 实施日期:1988-04-20
Isolationskoordination. Anwendungsrichtlinie Insulation Co-Ordination-Part 2:Application Guide Coordination de l'isolement. Guide d'application
适用范围:This part of IEC 71 constitutes an application guide and deals with the selection of insulation levels of equipment or installations for three-phase electrical systems. Its aim is to give guidance for ...
实施日期:1997-04-15
Insulation co-ordination. Part 1 : definitions, priciples and rules.
实施日期:1995-11-01
Amendment 1:Power installations exceeding 1 kV a.c. Part 1:Common rules
实施日期:2014-02-26
Insulation co-ordination for equipment within low-voltages systems; partial discharge tests; application guide
实施日期:1990-07-31
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 3: Loop impedance
适用范围:This part of IEC 61557 specifies the requirements applicable to equipment for measuring the loop impedance between a phase conductor and the protective conductor or between a phase conductor and neutra...
发布日期:2007-01-29 实施日期:2007-01-29
Short-circuit currents - Calculation of effects - Part 1 : definitions and calculation methods.
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