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IEC 61803:1999+A1:2010 applies to all line-commutated high-voltage direct current (HVDC) converter stations used for power exchange in utility systems. This standard presumes the use of 12-pulse thyristor converters but can, with due care, also be used for 6-pulse thyristor converters. In some applications, synchronous compensators or static var compensators (SVC) may be connected to the a.c. bus…

La CEI 61803:1999+A1:2010 s'applique à tous les postes de conversion en courant continu à haute tension (CCHT), commutés par le réseau, et utilisés pour l'échange de puissance dans des systèmes de distribution d'énergie. Cette norme présuppose l'utilisation de convertisseurs à thyristors à 12 impulsions mais peut également, en utilisant les précautions appropriées, s'…

IEC 60670-24:2011 applies to enclosures and parts of them for housing protective devices and other power dissipating electrical equipment intended to be used with a rated voltage not exceeding 400 V and a total incoming load current not exceeding 125 A for household and similar fixed electrical installations. This second edition cancels and replaces the first edition published in 2005 and…

Scope 1.1 General 1.1.1 This Standard applies to occupational diving operations conducted in connection with all types of work and employment, and describes the requirements for occupational safety. Note: It is recognized that certain underwater tasks may require specialized standards of practice and/or operational techniques that differ from the requirements of this Standard yet may be…

1 Scope 1.1 This part of ISO 9170 applies to: a) terminal units intended for use in medical gas pipeline systems in accordance with ISO 7396-1, for use with the following medical gases: - oxygen; - nitrous oxide; - medical air; - carbon dioxide; - oxygen/nitrous oxide mixture [50 %/50 % (by volume)]; b) terminal units intended for use in medical gas pipeline systems in accordance with…

1 Scope 1.1 The requirements of this Standard apply to the following electrical equipment for elevators, escalators, moving walks, dumbwaiters, material lifts, and elevating devices for persons with physical disabilities (platform lifts and stairway chairlifts): (a) motor controllers; (b) motion controllers; (c) operation controllers; (d) operating devices; and (e) all other electrical…

1 Scope 1.1 General 1.1.1 This Standard applies to occupational diving operations conducted in connection with all types of work and employment, and describes the requirements for occupational safety. Note: It is recognized that certain underwater tasks may require specialized standards of practice and/or operational techniques that differ from the requirements of this Standard yet…

ISO 16844-2:2011 specifies the electrical connection between the recording unit, and the vehicle network and the motion sensor, in tachograph systems used in road vehicles.

IEC 60601-2-49:2011 applies to the basic safety and essential performance requirements of multifunction patient monitoring equipment. It applies to medical electrical equipment used in a hospital environment as well as when used outside the hospital environment, such as in ambulances and air transport. Medical electrical equipment intended for use under extreme or uncontrolled environmental…

IEC 61000-6-4:2006+A1:2010 This part of IEC 61000 for EMC emission requirements applies to electrical and electronic apparatus intended for use in industrial environments as described below. Emission requirements in the frequency range 0 Hz to 400 GHz are covered. No measurement needs to be performed at frequencies where no requirement is specified. This generic EMC emission standard is…