1 Scope This standard specifies interchangeable glow-starters used with pre-heat type fluorescent lamps, hereafter called "starters". Section 1 specifies the general and safety requirements with which starters shall comply. Section 2 specifies th

定价： 1593元 / 折扣价： 1355 元

1.1 Scope This Standard applies to the safety of tungsten halogen 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： 637元 / 折扣价： 542 元

1. Scope This International Standard gives guidance for the content and presentation of operator's manuals for tractors, machinery for agriculture and forestry, and powered lawn and garden equipment. It is intended to assist manufacturers of tractors,

定价： 683元 / 折扣价： 581 元

1. Scope and Purpose 1.1 General This Standard provides a framework for the collection and analysis o f information about accidents, incidents, and harmful exposures. All accidents, whether or not they result in injury, are within the scope of this S

定价： 546元 / 折扣价： 465 元

定价： 1475元 / 折扣价： 1254 元 加购物车

1. Scope 1.1 This Standard specifies the test methods to be used in measuring the energy efficiency of three-phase induction motors, in support of a consumer/user information program. The method of determining and marking the nominal efficiency valu

定价： 592元 / 折扣价： 504 元

This PDF includes GI 2. 1. Scope 1.1 This Standard provides methods for rating factory-made commercial and industrial unitary air conditioners, heat pumps, and condensing units of the types classified in Tables 1, 2, and 3 and intended for air-cond

定价： 455元 / 折扣价： 387 元

This PDF includes GI 2. 1. Scope 1.1 This Standard applies to commercial refrigerator, refr igerator-freezer cabinets that are intended for storing and holding food products and other perishable merchandise. 1.2 This Standard applies to (a) man

定价： 501元 / 折扣价： 426 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 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

1. Scope This standard covers ballasts, excluding resistance types, for use on a.c. supplies up to 1 000 V at 50 Hz or 60 Hz, associated with tubular fluorescent lamps with or without pre-heated cathodes operated with or without a starter or starting d

定价： 1456元 / 折扣价： 1238 元

1. Scope This standard specifies safety requirements for ballasts for discharge lamps such as high-pressure mercury vapour, low- pressure sodium vapour, high-pressure sodium vapour and metal halide lamps. Section One specifies general requirements and

定价： 910元 / 折扣价： 774 元

1. Scope This standard specifies general and safety requirements for starting devices (starters and ignitors) for tubular fluorescent and other discharge lamps for use on a.c. supplies up to 1 000 V at 50 Hz or 60 Hz which produce starting pulses not g

定价： 910元 / 折扣价： 774 元

1. Scope This standard specifies general and safety requirements for electronic ballasts for use on a.c. supplies up to 1000 V at 50 Hz or 60 Hz with operating frequencies deviating from the supply frequency, associated with tubular fluorescent lamps a

定价： 1047元 / 折扣价： 890 元

1. Scope This International Standard specifies general safety requirements for specially designed self-propelled forestry mac hines defined in ISO 6814:1983, clause 4, and machines adapted for forestry applications when operating on work sites or trans

定价： 455元 / 折扣价： 387 元