Rechercher

IEC 60317-31:1990 specifies the requirements of glass-fibre wound, polyester or polyesterimide varnish-treated, bare or grade 2 enamelled rectangular copper winding wire, temperature index 180. NOTE For this type of wire, the heat shock test is inappropriate and therefore a heat shock temperature cannot be established. Consequently, a class based on the requirements for temperature index and…

Gives technical requirements for tubular fluorescent lamps with preheated cathodes for general lighting service, operated with or without a starter from a.c. mains, also describes tests for the lamps with non-preheated cathodes operated without the use of a starter. Gives testing methods to be used for checking quality and interchangeability for type testing, for individual lamp batches or for a…

This International Standard specifies basic technical characteristics for the magnetic sound test films for checking, adjusting and measuring sound reproducing channels of dubbing motion-picture installations. It also specifies types and technical characteristics of magnetic test films made on 35 mm, 17,5 mm and 16 mm motion-picture films. This International Standard includes test films intended…

Applies to lampholders of miscellaneous types intended for building-in (e.g. used with general purpose lamps, projection lamps, floodlighting lamps and street-lighting lamps with caps and the methods of test to be used in determining the safe use of lamps in lampholders). Requirements for lampholders for tubular fluorescent lamps, Edison screw lampholders and bayonet lampholders are covered by…

Shows which choices can be made where IEC 60617-12 and IEC 60617-13 provide alternative techniques for the construction of graphical symbols that represent binary logic and analogue functions. Helps to create symbols having as consistent as appearance as possible, not depending on the originator, while still accurately representing the function. Furthermore, it establishes additional conventions…

1. Scope 1.1 CSA Guideline CAN/CSA-Q850 is intended to assist decision-makers in effectively managing all types of risk issues, including injury or damage to health, property, the environment, or something else of value. 1.2 This Guideline describes a process for acquiring, analyzing, evaluating, and communicating information that is necessary for decision-making. 1.3 This Guideline provides a…

1. Scope 1.1 This Standard applies to occupational diving operations conducted in connection with all types of work and employment, and describes the requirements for minimal competency levels for all personnel directly associated with the identified techniques of diving. Canadian safety and health legislation requires that all workers be competent to perform the work assigned to them.…