Rechercher

States and defines test methods of interest to the users for measuring the principal performance characteristics of household electric washing machines. This standard is concerned neither with safety nor with performance requirements. This standard is applicable to horizontal drum type electric clothes washing machines, to spin extractors and to washing and spinning machines for household use. It…

Applies to string insulator units of the can and pin type and also of the long rod type as well as to the fittings used with such insulators. Defines dimensions of a series of clevis and tongue couplings to permit the assembly of insulators or fittings supplied by different manufacturers. Note: - For co-ordination between standardized dimensions and strength classes of cap and pin type…

Specifies the standard method to be used in comparing the contrast ratios given by paint films of white or ligth colours, of refelctance factor greater than 40 %, dried at normal air temperature and applied at approximately equal wet film thickness to black and white substrates. The wet film thickness selected, approximately 50 um, corresponds to a spreading rate of approximately 20 m2/l. Because…

1. SCOPE 1.1 This Standard applies to single conductor cables intended for installation in accordance with the Rules of the Canadian Electrical Code, Part I, as follows: (a) Type GTO cables for use with gas-tube systems for signs, outline lighting, and interior lighting, and for use also in the ignition systems of oil- and gas-burning equipment; and…

This is a text searchable PDF. 1.1 Scope 1.1.1 These requirements apply to natural and propane gas-fired conversion burners designed and constructed primarily for the purpose of converting heating and process equipment from the use of other fuels to gas firing and/or firing new heating or process equipment. 1.1.2 Section 2, Part A of these requirements apply to conversion…

This standard applies to three-pole units for public and industrial distribution systems which are functional assemblies of switches including switch-disconnectors and current-limiting fuses and thus able to interrupt: - any load current up to the rated breaking current of the switch; - any over-current up to the rated short-circuit breaking current of the combination…

Applies to a.c. circuit-breakers within the scope of IEC 56 (Clause 1). It provides the general rules for testing a.c. circuit-breakers, for making and breaking capacities over the range of test-duties described in Subclauses 6.102 to 6.111 of IEC 56, by synthetic methods. The purpose of this standard is to establish criteria for synthetic testing and for the proper evaluation of results. Such…

Prescribes specified values for the electrical and mechanical characteristics and for the principal dimensions of string insulator units of the long rod type with insulating parts of ceramic material intended for a.c. overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. The smallest insulator unit standardized has a lighting impulse withstand voltage…

Applies to two kinds of standard cells used as electromotive force references, namely saturated and unsaturated standard cells, and deals with test conditions relating to certification and requirements for their electrical and mechanical characteristics.

Applies to all transmitters for A3 class of operation. Applies also to radiotelephony transmitters with 1, 2, 3 or 4 channels for A3A, A3B, A3H and A3J class of operation, and to frequency modulated transmitters for monophonic sound broadcasting. Applies in part to transmitters for A7A and A7B class of operation. IEC 60244-4 itself describes standard operating conditions, standard modulation…