1. Scope 1.1 This Standard applies to voltage and polarity testers for use in nonhazardous locations, in accordance with the Rules of the Canadian Electrical Code, Part I, on electrical supply circuits and equipment at points where the voltage differe

定价： 455元 / 折扣价： 387 元

1. Scope This Standard applies to cast aluminium alloy enclosures pressurized with dry air, inert gases, eg. sulphur hexafluoride, carbon tetrafluoride, or nitrogen or a mixture of such gases, used in indoor or outdoor installations of high-voltage swi

定价： 728元 / 折扣价： 619 元

2. Scope and Field of Application 2.1 Type of Equipment This Standard applies to fusion welded wrought aluminium and alu minium alloy enclosures pressurized with dry air, inert gases, eg, sulphur hexafluoride, carbon tetrafluoride, or nitrogen or a m

定价： 1274元 / 折扣价： 1083 元

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 元

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 元

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 元

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 元

This PDF includes GI #2. 1. Scope 1.1 This Standard applies to full-load interrupter switches for use at voltages from 751 to 48 300 V ac indoors, and for installation in switchgear assemblies (see CSA Standard C22.2 No. 31) or similar equipment fo

定价： 501元 / 折扣价： 426 元

定价： 2184元 / 折扣价： 1857 元

1 Scope and object This part of IEC 60871 is applicable to both capacitor units and capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems having a rated voltage above 1 000 V and frequencies of 15 Hz to 60

定价： 1274元 / 折扣价： 1083 元

1.1 Scope and object This technical specification applies to capacitors according to IEC 60871-1 and gives the requirements for overvoltage cycling and ageing tests of these capacitors. Ce format PDF permet de faire de la recherche 1.1 Domaine d.a

定价： 546元 / 折扣价： 465 元

1. Scope 1.1 This Standard applies to indoor and outdoor metal-enclosed busways for voltages from 751 V to 46 kV, inclusive, ac or dc, intended to be used in nonhazardous locations in accordance with the Rules of the Canadian Electrical Code, Part I.

定价： 501元 / 折扣价： 426 元

CSA Preface This is the first edition of CAN/CSA-C61000-2-12, Electromagnetic compatibility (EMC) - Part 2-12: Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public medium-voltage power supply systems, whi

定价： 1001元 / 折扣价： 851 元

CSA Preface This is the second edition of CAN/CSA-C61000-2-2, Electromagnetic compatibility (EMC) - Part 2-2: Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems, which i

定价： 1001元 / 折扣价： 851 元

1 Scope and object This part of IEC 61000 is concerned with the emission of voltage changes, voltage fluctuations and flicker produced by equipment and impressed on the public low-voltage supply system. It specifies the limits of voltage changes produc

定价： 683元 / 折扣价： 581 元