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1. Scope 1.1 This standard applies to symbols that communicate instructions and directions about public services and safety to users of passenger transportation facilities. 1.2 This standard applies to bus, train, air and ship transportation facilities. 1.3 This standard addresses some of the needs of people with disabilities. 1.4 This standard does not cover all possible signage requirements…

Specifies the requirements for clearances, creepage distances and solid insulation for equipment based upon their performance criteria. Applies to equipment for use up to 2 000 m above sea level having a rated voltage up to 1 000 V a.c. with rated frequencies up to 30 kHz or a rated voltage up to 1 500 V d.c. Supersedes IEC 664 and IEC 664A. Has the status of a basic safety publication in…

Définit les prescriptions pour les distances d'isolement dans l'air, des lignes de fuite et de l'isolation solide des matériels, basés sur leurs critères de performance. S'applique aux matériels utilisés jusqu'à 2 000 m au dessus du niveau de la mer ayant une tension assignée ne dépassant pas 1 000 V en courant alternatif, de fréquences assignées ne dépassant pas 30 kHz,…

IEC 61514:2000 specifies tests designed to determine the static and dynamic performance of single-acting or double-acting valve positioners. The tests may be applied to positioners which receive standard analogue input signals (as specified in IEC 60381 and IEC 60382) and have a pneumatic output. NOTE For positioners with pulsed or digital input signals, equivalent criteria may be applied. The…

Is applicable to alternating current and direct current bushings for rated voltages above 52 kV, mounted on transformers, other apparatus of buildings. It is accepted that for bushings for rated voltages less than or equal to 52 kV, due to their characteristics (resonance frequency greater than 25 Hz) seismic qualification is not required. Has the status of a technical report type 2. This…

S'applique aux traversées à courant continu et à courant alternatif pour des tensions nominales supérieures à 52 kV, montées sur des transformateurs, sur d'autres matériels ou sur des bâtiments. Il est admis qu'en raison de leurs caractéristiques (fréquence de résonance supérieure à 25 Hz), les traversées dont la tension nominale est inférieure ou égale à 52 kV n'ont pas…

S'applique à l'interface audionumérique conforme à la série CEI 60958, pour l'acheminement des flux de bits audio à codage MIC non linéaire. Décrit l'utilisation de cette interface dans les applications grand public.

Applies in particular to direct arc furnaces and submerged arc furnaces (or arc resistance furnaces). Applies to that part of the installation which is situated on the output side of the furnace feeding transformer. This publication has the status of a report.

S'applique en particulier aux fours à arc direct et aux fours à arc submergé (ou à arc-résistance). Concerne la partie de l'installation placée en aval du transformateur d'alimentation du four. Cette publication a le statut d'un rapport.

Specifies the data communication protocol (DCP) management requirements. Describes the management services in an abstract way as well as the underlying protocol. This publication is of high relevance for Smart Grid.