High-voltage direct current (HVDC) systems - Guidance to the specification and design evaluation of ...
IEC TR 62001-1:2021 is available as IEC TR 62001-1:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC TR 62001-1:2021 deals with the specification and design evaluation of AC side harmonic performance and AC side filters for HVDC schemes. It is intended to be primarily for the use of the…
High-voltage direct current (HVDC) systems - Guidance to the specification and design evaluation of ...
IEC TR 62001-1:2021 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC TR 62001-1:2021 deals with the specification and design evaluation of AC side harmonic performance and AC side…
Designation of phase differences by hour numbers in three-phase AC systems
IEC 60152:2021 specifies methods and rules for the designation of phase difference between two items in a three-phase AC system. The designations are intended to be applied in the technical documentation of industrial installations, equipment, and products, and also on markings of equipment and products.
IEC 60152:2021 cancels and replaces the first edition published in 1963. This edition…
IEC 61316:2021 is available as IEC 61316:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61316:2021 applies to cable reels provided with a non-detachable flexible cable with a rated operating voltage not exceeding 690 V DC and/or 690 V AC with a frequency not exceeding 500 Hz and a…
Space systems — Design guidelines for multi-geo spacecraft collocation
This document addresses the design process of a collocation and the basic contents of collocation design process which include considerations, initial collocation strategy design, simulation evaluation of collocation strategy, optimal collocation strategy selection and collocation agreement.
This document gives guidelines for multi-geo spacecraft collocation, and it applies in particular to multi…
Fertilizers, soil conditioners and beneficial substances — Determination of EDTA soluble phosphorus ...
This document specifies the method for the determination of the EDTA soluble phosphorus content of inorganic fertilizers. The method is applicable for fertilizers composed of or blended from multiple sources such as superphosphate, ammonium phosphate, triple superphosphate, and/or nitrophosphate. It is not suitable for fertilizers containing calcium magnesium phosphates.
Electricity metering data exchange - The DLMS/COSEM suite - Part 3-1: Use of local area networks on ...
IEC 62056-3-1:2021 is available as IEC 62056-3-1:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62056-3-1:2021 describes two sets of profiles: the first set of profiles allows a bidirectional communication between a client and a server. This set of profiles is made of three profiles…
High-voltage switchgear and controlgear - Part 100: Alternating-current circuit-breakers
IEC 62271-100:2021 is applicable to three-phase AC circuit-breakers designed for indoor or outdoor installation and for operation at frequencies of 50 Hz and/or 60 Hz on systems having voltages above 1 000 V. This document includes only direct testing methods for making-breaking tests. For synthetic testing methods refer to IEC 62271-101.
This third edition cancels and replaces the second…
Power installations exceeding 1 kV AC and 1,5 kV DC - Part 1: AC
IEC 61936-1:2021 provides requirements for the design and the erection of electrical power installations in systems with nominal voltages exceeding 1 kV AC and nominal frequency up to and including 60 Hz, so as to provide safety and proper functioning for the use intended.
This document does not apply to the design and erection of any of the following:
– overhead and underground lines between…
Power installations exceeding 1 kV AC and 1,5 kV DC - Part 1: AC
IEC 61936-1:2021 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 61936-1:2021 CMV edition 3.0 and the previous IEC 61936-1:2010+AMD1:2014 CSV edition 2.1. Futhermore, comments from IEC TC 99 experts are provided to explain the reasons of the most relevant changes.
IEC 61936-1:…
