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This part of IEC 61000-4 relates to the conducted immunity requirements of electrical and electronic equipment to electromagnetic disturbances coming from intended radio-frequency (RF) transmitters in the frequency range 9 kHz up to 80 MHz. Equipment not having at least one conducting cable (such as mains supply, signal line or earth connection) which can couple the equipment to the disturbing RF…

ISO/IEC 18051:2004 specifies the Services and Event Reports for Computer-Supported Telecommunications Applications (CSTA), Phase III. It is focused on providing application service interfaces to a Switching Function, Computing Function and a Special Resource Function. A CSTA application interface is disassociated from the various user-network interfaces and network-network interfaces CSTA…

ISO/IEC 18051:2004 specifies the Services and Event Reports for Computer-Supported Telecommunications Applications (CSTA), Phase III. It is focused on providing application service interfaces to a Switching Function, Computing Function and a Special Resource Function. A CSTA application interface is disassociated from the various user-network interfaces and network-network interfaces CSTA…

ISO 16844-3:2004 specifies the physical and data link layers of the electrical interface connecting a motion sensor to a vehicle unit, used in tachograph systems in road vehicles to perform speed signal transmission and data interchange.

Covers all relevant EMC phenomena for hearing aids. EMC phenomena, such as RF emission and electrostatic discharge, are not currently known to be a significant problem in connection with hearing aids and are therefore not dealt with. Based on new knowledge, they could be considered in connection with future revisions or extensions of this standard. Hearing aid immunity to high frequency…

Specifies limits for harmonic current emissions applicable to electrical and electronic equipment having an input current up to and including 16 A per phase, and intended to be connected to public low-voltage distribution systems. The tests according to this standard are type tests. Test conditions for particular equipment are given in annex C. For systems with nominal voltages less than 220…

ISO 407:2004 concerns pin-index yoke-type valve connections for small medical gas cylinders, with a maximum working pressure (filling pressure at 15 °C) of 200 bar. This type of connection is typically used for small cylinders (5 l or below). In some cases, it may be used for larger cylinders. In this latter case, consideration shall be given to the need for valve protection. It specifies: basic…

Describes the principles for the selection, operation, location and coordination of SPDs connected to telecommunication and signalling networks with nominal system voltages up to 1 000 V r.m.s. a.c. and 1 500 V d.c. Also addresses SPDs that incorporate protection for signalling lines and power lines in the same enclosure.

Décrit les principes à utiliser pour le choix, le fonctionnement, la localisation et la coordination des parafoudres connectés aux réseaux de télécommunications et de transmission de signaux sous une tension nominale de réseau jusqu'à 1 000 V efficace en courant alternatif et 1 500 V en courant continu. Aussi les parafoudres qui incorporent la protection pour les lignes de transmission de…

This national standards of Canada is equivalent to international standards CEI/IEC 61000-2-12:2003. 1. Scope and object This part of IEC 61000 is concerned with conducted disturbances in the frequency range from 0 kHz to 9 kHz, with an extension up to 148,5 kHz specifically for mains signalling systems. It gives compatibility levels for public medium voltage a.c. distribution systems having a…