IEC 60445:2017 pdf download

IEC 60445:2017 pdf download.Basic and safety principles for man-machine interface, marking and identification
1 Scope
This document applies to the identification and marking of terminals of electrical equipment such as resistors, fuses, relays, contactors, transformers, rotating machines and, wherever applicable, to combinations of such equipment (e.g. assemblies), and also applies to the identification of terminations of certain designated conductors. It also provides general rules for the use of certain colours or alphanumeric notations to identify conductors with the aim of avoiding ambiguity and ensuring safe operation. These conductor colours or alphanumeric notations are intended to be applied in cables or cores, busbars, electrical equipment and installations. This basic safety publication is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 1 04 and ISO/IEC Guide 51 . It is not intended for use by manufacturers or certification bodies. One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements of this basic safety publication will not apply unless specifically referred to or included in the relevant publications.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: • IEC Electropedia: available at http://www.electropedia.org/ • ISO Online browsing platform: available at http://www.iso.org/obp NOTE The terms are sorted in alphabetical order in the English language.3.1 electric equipment item used for such purposes as generation, conversion, transmission, distribution or utilization of electric energy, such as electric machines, transformers, switchgear and controlgear, measuring instruments, protective devices, wiring systems, current-using equipment [SOURCE: IEC 60050-826:2004, 826-1 6-01 ] 3.2 functional bonding conductor conductor provided for functional-equipotential-bonding [SOURCE: IEC 60050-1 95:1 998, 1 95-02-1 6] 3.3 functional earthing functional grounding (US) earthing a point or points in a system or in an installation or in equipment, for purposes other than electrical safety [SOURCE: IEC 60050-1 95/AMD1 :2001 , 1 95-01 -1 3] 3.4 functional earthing conductor functional grounding conductor, US earthing conductor provided for functional earthing [SOURCE: IEC 60050-1 95:1 998, 1 95-02-1 5] 3.5 functional-equipotential-bonding equipotential bonding for operational reasons other than safety [SOURCE: IEC 60050-1 95:1 998, 1 95-01 -1 6] 3.6 line conductor DEPRECATED: phase conductor (in AC systems) DEPRECATED: pole conductor (in DC systems) conductor which is energized in normal operation and capable of contributing to the transmission or distribution of electric energy but which is not a neutral or mid-point conductor [SOURCE: IEC 60050-1 95:1 998, 1 95-02-08] 3.7 mid-point conductor conductor electrically connected to the mid-point and capable of contributing to the distribution of electric energy [SOURCE: IEC 60050-1 95:1 998, 1 95-02-07] 3.8 neutral conductor conductor electrically connected to the neutral point and capable of contributing to the distribution of electric energy [SOURCE: IEC 60050-1 95:1 998, 1 95-02-06]3.9 PEL conductor conductor combining the functions of both a protective earthing conductor and a line conductor [SOURCE: IEC 60050-1 95:1 998, 1 95-02-1 4] 3.1 0 PEM conductor conductor combining the functions of both a protective earthing conductor and a mid-point conductor [SOURCE: IEC 60050-1 95:1 998, 1 95-02-1 3] 3.1 1 PEN conductor conductor combining the functions of both a protective earthing conductor and a neutral conductor [SOURCE: IEC 60050-1 95:1 998, 1 95-02-1 2] 3.1 2 protective bonding conductor DEPRECATED: equipotential bonding conductor protective conductor provided for protective-equipotential-bonding [SOURCE: IEC 60050-1 95:1 998, 1 95-02-1 0] 3.1 3 protective bonding conductor earthed protective bonding conductor with a conductive path to local earth 3.1 4 protective bonding conductor unearthed protective bonding conductor without a conductive path to local earth 3.1 5 protective conductor (identification: PE) equipment grounding conductor, US grounding electrode conductor, US conductor provided for purposes of safety, for example protection against electric shock Note 1 to entry: The terms equipment grounding conductor and grounding electrode conductor are used in the US depending on their application. [SOURCE: IEC 60050-1 95:1 998, 1 95-02-09, modified – two synonyms and a note to entry have been added.]