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Scope and object 1.1 Scope This part of IEC 60947 applies to the types of equipment listed in 1.1.1 and 1.1.2 whose main contacts are intended to be connected to circuits the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c. Starters and/or contactors dealt with in this standard are not normally designed to interrupt short-circuit currents. Therefore, suitable short-…

IEC 60871-4:2014 applies to internal fuses which are designed to isolate faulty capacitor elements, in order to allow operation of the remaining parts of that capacitor unit and the bank in which the capacitor unit is connected. Such fuses are not a substitute for a switching device such as a circuit-breaker, or for external protection of the capacitor bank or any part thereof. The object of this…

IEC 62271-202:2014 specifies the service conditions, rated characteristics, general structural requirements and test methods of high voltage/low voltage or low voltage/high voltage prefabricated substations, which are cable-connected, to be operated from inside (walk-in type) or outside (non-walk-in type) for alternating current of rated voltages above 1 kV and up to and including 52 kV on the…

L'IEC 62271-202:2014 spécifie les conditions de service, les caractéristiques assignées, les exigences structurelles générales et les méthodes d'essai applicables aux postes préfabriqués haute tension/basse tension ou basse tension/haute tension qui sont connectés par câble, pour être manoeuvrés de l'intérieur (à aire de manoeuvre) ou de l'extérieur (sans aire de manoeuvre),…

IEC 60034-8:2007+A1:2014 Applies to a.c. and d.c. machines and specifies: - rules for the identification of winding connection points; - marking of winding terminals; - direction of rotation; - relationship between terminal markings and direction of rotation; - terminal marking of auxiliary devices; - connection diagrams of machines for common applications. The main change with respect to…

ISO 18752:2014 specifies requirements for ten classes, four grades and seven types of wire- or textile-reinforced hydraulic hoses and hose assemblies of nominal sizes ranging from 5 to 102. Each class has a single maximum working pressure for all sizes. Such hoses are suitable for use with hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from -40 °C to +100…

IEC 61837-2:2011+A1:2014 deals with standard outlines and terminal lead connections as they apply to surface-mounted devices (SMD) for frequency control and selection in ceramic enclosures, and is based on IEC 61240. In this edition, types of enclosures are renamed to express their features in their names for better understanding. The relative comparison of new types with old ones is listed in…

IEC 61851-23:2014, gives the requirements for d.c. electric vehicle (EV) charging stations, herein also referred to as "DC charger", for conductive connection to the vehicle, with an a.c. or d.c. input voltage up to 1 000 V a.c. and up to 1 500 V d.c. according to IEC 60038. It provides the general requirements for the control communication between a d.c. EV charging station and an EV.…

IEC 62608-1:2014 specifies the basic reference model to configure devices connected to a home network with a configuration framework for network applications running on such devices and describes the system model and functions that each component should support. It applies to devices that are connected via cables and switched on and that support the IP protocol. The reference model covers inside…