1. Scope This clause of part 1 is applicable except as follows: 1.1 Modification: Replace the first paragraph by: This International Standard applies to transportable diamond drills with water supply having a core bit diameter of not more tha

定价： 410元 / 折扣价： 349 元

1.1 Scope This International Standard states the requirements for both self-healing and non-self-healing continuously rated a.c. capacitors of up to and including 2.5 kvar, and not less than 0.1 μF, having a rated voltage not exceeding 1 000 V, which a

定价： 910元 / 折扣价： 774 元

1. Scope This standard deals with the safety of electrical appliances for household and similar purposes, the rated voltage of the appliances being not more than 250 V for single-phase appliances and 480 V for other appliances. This Standard applies

定价： 2139元 / 折扣价： 1819 元

1. Scope This clause of Part 1 is applicable except as follows: 1.1 Replacement: This standard applies to rechargeable battery-powered motor-o perated tooth-brushes for household and similar purposes, and to their charging and battery assemblies

定价： 592元 / 折扣价： 504 元

1. Scope This clause of part 1 is applicable except as follows: 1.1 Replacement: This part of IEC 335 applies to: - electrical refrigerators with or without frozen food storage compartments, frozen food storage cabinets and food freezers and

定价： 1138元 / 折扣价： 968 元

1. Scope This clause of Part 1 is applicable except as follows: 1.1 Replacement This standard applies to electrically operated commercial water boilers and liquid heaters for the boiling or heating of liquids to be used in the preparation of bev

定价： 637元 / 折扣价： 542 元

1. Scope This clause of part 1 is replaced by: This standard deals with the safety of electric water-bed heaters and their associated control units, for household and similar purposes, their rated voltage being not more than 250 V. Appliances not

定价： 546元 / 折扣价： 465 元

1. Scope This clause of part 1 is replaced by: This standard deals with the safety of milking machines to be used in stalls and in the open, which are designed for milking farm animals, such as cows, the rated voltage of the milking machine being no

定价： 546元 / 折扣价： 465 元

1. Scope This clause of part 1 is replaced by: This standard deals with the safety of all kinds of electrical heating appliances used for livestock rearing and breeding, such as: heat-radiating appliances, electrical sitting-hens, incubators, chicke

定价： 637元 / 折扣价： 542 元

1. Scope This standard is applicable to fixed capacitors for use in electronic equipment. It establishes standard terms, inspection procedures and methods of test for use in sectional and detail specifications for Qualification Approval and for Qual

定价： 1320元 / 折扣价： 1122 元

1.1 Scope This Standard applies to the safety of tungsten filament lamps intended for use in lighting equipment, designed to be installed on branch circuits not exceeding 750 V and used in accordance with the rules of the Canadian Electrical Code (CEC

定价： 1729元 / 折扣价： 1470 元

1. Scope This Standard applies to track systems with two or more poles for the connection of luminaires to the electrical supply, either of rated voltage not exceeding 300 V between poles, 150 Volts-to-ground with the provision for earthing (Class I) a

定价： 546元 / 折扣价： 465 元

This standard includes Update #2. 1.1 Scope This section of Part 2 of IEC Publication 598 specifies requirements for fixed general purpose luminaires for use with tungsten filament, tubular fluorescent and other discharge lamps on supply voltages n

定价： 592元 / 折扣价： 504 元

This PDF includes General Instruction #2. 1. Domaine d'application Cette section de la deuxième partie de la Publication 598 de la CEI détaille les prescriptions applicables aux luminaires pour l'éc lairage des scènes de théatre, des studios de télé

定价： 546元 / 折扣价： 465 元

1. Scope This section of Part 2 of IEC 598 specifies requirements for fixed luminaires intended for use in water, or in contact with water, in, for example, the basins of swimming pools, fountains, paddling pools, and garden pools, and for use with tun

定价： 637元 / 折扣价： 542 元