IEC 61557-4:2019 pdf download
IEC 61557-4:2019 pdf download.Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. 1 Scope This part of IEC 61 557 specifies the requirements applicable to equipment for measuring the resistance of earth conductors, protective earth conductors and conductors for equipotential bonding, including their connections and terminals, with an indication of the...
IEC 62783-2:2019 pdf download
IEC 62783-2:2019 pdf download.Twinax cables for digital communications – Part 2: Family specification – Cable for Ethernet-over-twinax physical interfaces 1 Scope This part of IEC 62783 covers indoor cables and specifies the definitions and requirements of twin-axial cables used in digital communication systems. This document, which is a family specification, gives additional requirements for twinax cables for use in IEEE...
IEC 61557-5:2019 pdf download
IEC 61557-5:2019 pdf download.Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. 1 Scope This part of IEC 61 557 specifies the requirements applicable to measuring equipment for measuring the resistance to earth using an AC voltage. 2 Normative references The following documents are referred to in the text in such...
IEC 61557-7:2019 pdf download
IEC 61557-7:2019 pdf download.Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. 1 Scope This part of IEC 61 557 specifies the requirements applicable to measuring equipment for testing the phase sequence in three-phase distribution systems. Indication of the phase sequence can be mechanical, visual and/or audible. This document does not...
IEC 61557-6:2019 pdf download
IEC 61557-6:2019 pdf download.Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. 4.2 Functions 4.2.1 Measurement of trip current The measuring equipment shall be capable of indicating if and when the residual operating current of the protective device is less than or equal to the rated residual operating current. The tests...
IEC 61820-1:2019 pdf download
IEC 61820-1:2019 pdf download.Electrical installations for aeronautical ground lighting at aerodromes – Part 1: Fundamental principles 1 Scope This part of IEC 61 820 covers principles of design and installation requirements for AGL systems including control, monitoring and transformation of energy, the cables and any electrical component utilized to produce the light intended to be used as a visual aid...
IEC 61892-4:2019 pdf download
IEC 61892-4:2019 pdf download.Mobile and fixed offshore units – Electrical installations – Part 4: Cables 1 Scope This part of IEC 61 892 is applicable to the selection of electrical cables intended for fixed electrical systems in mobile and fixed offshore units, including pipeline, pumping or “pigging” stations, compressor stations and single buoy moorings, used in the offshore petroleum industry...
IEC 62047-35:2019 pdf download
IEC 62047-35:2019 pdf download.Semiconductor devices – Micro-electromechanical devices – Part 35: Test method of electrical characteristics under bending deformation for flexible electromechanical devices 1 Scope This part of IEC 62047 specifies the test method of electrical characteristics under bending deformation for flexible electromechanical devices. These devices include passive micro components and/or active micro components on the flexible film or embedded...
IEC 61207-2:2019 pdf download
IEC 61207-2:2019 pdf download.Expression of performance of gas analyzers – Part 2: Measuring oxygen in gas utilizing high-temperature electrochemical sensors 1 Scope This part of IEC 61 207 applies to all aspects of analyzers using high-temperature electro-chemical sensors for the measurement of oxygen in gas. It applies to in-situ and extractive analyzers and to analyzers installed indoors and outdoors. The...
IEC 61952-1:2019 pdf download
IEC 61952-1:2019 pdf download.Insulators for overhead lines – Composite line post insulators for AC systems with a nominal voltage greater than 1 000 V 1 Scope This part of IEC 61 952 is applicable to composite line post insulators for AC overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 1 00...