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Applies to post insulators and post insulator units of ceramic material or glass for indoor and outdoor service in electrical installations or equipment operating on alternating current with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. Notes: - May also be regarded as a provisional standard for insulators for use on d.c. systems, see IEC 438…

Replaces IEC 108. This publication also bears the number QC 300600, which is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ). Applicable to fixed capacitors of ceramic dielectric with a defined temperature coefficient (dielectric Class 1), intended for use in electronic equipment, including leadless capacitors but excluding multilayer ceramic chip…

This publication also bears the number QC 300700, which is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ). Applicable to fixed capacitors of ceramic dielectric with a high permittivity (dielectric Class 2), intended for use in electronic equipment, including leadless capacitors, but excluding multilayer ceramic chip capacitors. Prescribes preferred…

This publication also bears a QC number. This number, QC 301900, is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ). Applicable to fixed unencapsulated multilayer chip capacitors of ceramic dielectric, Class 1 and Class 2, with a rated voltage normally not exceeding 200 V, for use in electronic equipment. These capacitors have metallized connecting…

Covers general requirements for the classification and marking of luminaires and for their mechanical and electrical construction, together with related tests. Is applicable to luminaires for use with tungsten filaments, tubular fluorescent and other discharge lamps on supply voltages not exceeding 1 000 V. This publication supersedes IEC 162 (1972).

Contient une norme «expérimentale» définissant un essai d'exposition aux ultrasons destiné à déterminer l'aptitude de composants et matériels à résister aux effets d'un nettoyage aux ultrasons. Cette publication a le statut d'un rapport.

Enonce les exigences électriques de rendement et les caractéristiques mécaniques des condensateurs conçus pour le raccordement en parallèle aux réseaux d'alimentation. Elle comprend également un essai d'endurance facultatif. Les exigences de cette norme coincident avec celles de la publication 70 de la CEi

1. OBJET La présente norme a pour objet de décrire les caractéristiques des filtres à poches non nettoyables, avec ou sans support, conçus pour éliminer de l'air les poussières atmosphériques de dimensions généralement inférieures à 5 microns. 2 DOMAINE D'APPLICATION La présente norme s'applique aux filtres à air équipant les installations de conditionnement de l'air…