Câbles pour fréquences radioélectriques - Partie 0-1: Guide pour la conception des spécifications pa...
Gives recommendations for design parameters, including nominal characteristic impedances and diameter over dielectric, and guidance for the design of radio-frequency coaxial cables with braid, metallic tapes or tubular outer conductors.
Cette version consolidée comprend la deuxième édition (1990) et
son amendement 1 (2000). Il n'est donc pas nécessaire de commander
l'amendement avec…
SBus is a high performance computer I/O interface for connecting integrated circuits and SBus Cards to a computer system motherboard. This standard defines the mechanical, electrical, environmental, and protocol requirements for the design of SBus Cards and the computer system motherboard that supports those cards.
Every SBus Card shall implement appropriate self-descriptive and initialization…
Safety of power transformers, power supply units and similar devices - Part 2-19: Particular require...
This International Standard deals with all aspects of safety such as electrical, thermal and mechanical.
This part 2-19 of IEC 61558 applies to stationary or portable, single-phase or poly-phase, air-cooled (natural or forced), independent or associated, isolating or safety isolating transformers, having a rated supply voltage not exceeding 1 000 V a.c., a rated frequency not exceeding 500 Hz,…
Sécurité des transformateurs, blocs d'alimentation et dispositifs analogues - Partie 2-19: Règl...
La présente Norme internationale traite de tous les aspects de la sécurité tels qu'électrique, thermique et mécanique.
Cette partie 2-19 de la CEI 61558 est applicable aux transformateurs de séparation des circuits et de sécurité, associés ou indépendants, installés à poste fixe ou mobiles, monophasés ou polyphasés, à refroidissement par air (circulation naturelle ou forcée), ayant une…
1. Scope
1.1 General
1.1.1 Equipment Covered
This Standard applies to the following types of vehicle-mounted aerial devices:
(a) extensible boom aerial device;
(b) aerial ladder;
(c) articulating boom aerial device;
(d) vertical tower; and
(e) a combination of any of the above.
The vehicle may be a truck, trailer, or all-terrain vehicle.
1.1.2 Equipment Not Covered
This Standard…
Safety of power transformers, power supply units and similar devices - Part 2-20: Particular require...
This part of IEC 61558 applies to stationary or portable, single-phase or poly-phase, air-cooled (natural or forced) general purpose small reactors, including alternating current, premagnetised and current compensated reactors, independent or associated, having a rated supply voltage not exceeding 1000 V a.c. or d.c. and rated frequency not exceeding 1 MHz, the rated power not exceeding
- 2…
Sécurité des transformateurs, blocs d'alimentation et dispositifs analogues - Partie 2-20: Règl...
La présente partie de la CEI 61558 est applicable aux petites bobines d'inductance fixes ou mobiles, monophasées ou polyphasées, généralement à refroidissement par air (circulation naturelle ou forcée), pour usage général, incluant les bobines d'inductance à courant alternatif, prémagnétisées et à courant compensé, indépendantes ou associées, ayant une tension primaire assignée n'…
Distribution automation using distribution line carrier systems - Part 6: A-XDR encoding rule
Defines a set of encoding rules that may be used to derive the specification of a transfer syntax for values of types defined in the DLMS core standard using the ASN.1 notation (see IEC 61334-4-41).
This publication is of high relevance for Smart Grid.