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Applies to telecontrol equipment and systems with coded bit serial data transmission for monitoring and controlling geographically widespread processes. It defines a telecontrol companion standard that enables interoperability among compatible telecontrol equipment. This publication is of high relevance for Smart Grid.

La présente Norme internationale prescrit les composants et paramètres physiques d'une raquette de tennis et elle définit la terminologie utilisée. Elle prescrit également des méthodes de laboratoire pour mesurer un certain nombre de paramètres spécifiques aux raquettes de tennis et elle donne des recommandations relatives à l'indication de ces paramètres. La spécification des méthodes…

This National Standard of Canada is based on International Standard CEI/IEC 79-1A:1975. 1. Scope This method of test is intended for the measurement of the maximum experimental safe gaps for gas- or vapour-air mixtures under normal conditions of temperature* and pressure so as to permit the selection of the appropriate group of flameproof enclosures. The method does not take into…

The international community has decided to make this standard available only in the English language version. It has been adopted as a National Standard of Canada on this basis. This National Standard of Canada is equivalent to International Standard ISO/IEC 11573:1994. 1.1 Scope This International Standard contains requirements necessary for the synchronization of PISNs. Timing within a…

1. Scope 1.1 This standard specifies the general requirements for construction, testing and marking of electrical apparatus for explosive gas atmospheres and is supplemented of modified by the following parts of IEC Publication 79 concerning specific types of protection: - Flameproof Enclosures (Publication 79-1) - Pressurized Enclosures (Publication 79-2) -…

1. Scope 1.1 This report gives guidance on the design, selection and erection of electrical installations in areas where there may be explosive gas atmospheres. Note - Although most of this report is worded in the mandatory form, it offers guidance on installation for which the non-mandatory form of wording is more appropriate.…

1. Scope This report specifies requirements for the construction, assessment and testing of electrical apparatus with type of protection "n" which, when operating normally within its rated duty, is unlikely to be capable of igniting a surrounding explosive gas atmosphere. This report specifies the features of apparatus which shall be…

1.1 Scope This section of IEC 1241-1 is applicable to electrical apparatus protected by enclosure for use in areas where combustible dust may be present in quantities which could lead to a fire or explosion hazard. Apparatus within the scope of this standard may also be subjected to additional requirements in other publications - for example, IEC 79. This section specifies…

La collectivité internationale a décidé de publier cette norme uniquement en anglais. C'est donc sur cette base qu'on a adopté cette norme comme Norme nationale du Canada. La présente Norme nationale du Canada est équivalente à la Norme internationale ISO/IEC 11573:1994. 1.1 Domaine d'application La présente norme renferme les exigences nécessaires pour la synchronisation des…

1. Domaine d'application 1.1 La présente norme spécifie les règles générales de construction, d'épreuves et de marquage du matériel électrique pour atmosphères explosives gazeuses; elle est complétée ou modifiée par les autres parties de la Publication 79 de la CEI concernant les modes spécifiques de protection, à savoir: - Enveloppe…