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1. Scope and Object This standard applies, when required by the relevant product standard, to switchgear and controlgear hereinafter referred to as "equipment" and intended to be connected to circuits, the rated voltage of which does not exceed 1000 V

定价: 2321元 / 折扣价: 1973

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2. Scope and Field of Application 2.1 Type of Equipment This Standard applies to fusion welded wrought steel enclosures pressurized with dry air, inert gases, eg, sulphur hexafluoride, carbon tetrafluoride, or nitrogen or a mixture of such gases, use

定价: 1274元 / 折扣价: 1083

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2. Scope and Field of Application 2.1 Type of Equipment This Standard applies to welded composite enclosures of cast and wrought aluminium and aluminium alloy enclosures pressurized with dry air, inert gases, eg, sulphur hexafluoride, carbon tetraflu

定价: 910元 / 折扣价: 774

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2. Scope 2.1 Type of Equipment This standard applies to cast resin partitions pressurized with inert gases, eg, sulphur hexafluoride, carbon tetrafluoride, or a mixture of such gases, such as sulphur hexafluoride and nitrogen used in indoor and outdo

定价: 455元 / 折扣价: 387

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1.1 Scope This standard applies to hollow insulators made of ceramic material, with their fixing devices, intended for use with a perman ent gas pressure greater than 0,5 bar having an internal volume equal to or greater than 1 litre (1 000 cm3). They

定价: 819元 / 折扣价: 697

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定价: 7872元 / 折扣价: 6692

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C22.2 NO. 31-04 Switchgear Assemblies 现行 发布日期 :  1970-01-01 实施日期 : 

1 Scope 1.1 This Standard applies to indoor open and enclosed and outdoor enclosed assemblies of switchgear devices such as (a) switches; (b) interrupting devices; (c) air circuit breakers; (d) power circuit breakers; and (e) control, metering, pr

定价: 592元 / 折扣价: 504

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定价: 260元 / 折扣价: 221 加购物车

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定价: 605元 / 折扣价: 515 加购物车

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