SIST EN IEC 62271-215:2021/oprA1:2026

Amendment 1 - High-voltage switchgear and controlgear - Part 215: Phase comparator used with VDIS

Appareillage à haute tension - Partie 215: Comparateur de phase utilisé avec un vdis

Visokonapetostne stikalne in krmilne naprave - 215. del: Fazni primerjalnik, uporabljen z VDIS - Dopolnilo A1

General Information

• Status: Not Published
• Public Enquiry End Date: 30-Jun-2026
• ICS: 13.260 - Protection against electric shock. Live working
• ICS: 29.130.10 - High voltage switchgear and controlgear
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: SKA - Switchgear and control gear
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 15-Apr-2026
• Due Date: 02-Sep-2026
• Ref Project: EN IEC 62271-215:2021/prA1:2026 - Amendment 1 - High-voltage switchgear and controlgear - Part 215: Phase comparator used with VDIS

Relations

• Amends: SIST EN IEC 62271-215:2021 - High-voltage switchgear and controlgear - Part 215: Phase comparator used with VDIS (IEC 62271-215:2021)
• Effective Date: 06-Aug-2024

Overview

SIST EN IEC 62271-215:2021/oprA1:2026 is an amendment to the international standard for high-voltage switchgear and controlgear, specifically focusing on phase comparators used with Voltage Detecting and Indicating Systems (VDIS). Published by CLC and prepared by IEC technical subcommittee 17C, this Amendment 1 introduces key precision updates and clarifications to ensure enhanced safety, interoperability, and reliability in high-voltage environments.

Phase comparators with VDIS play a critical role in verifying phase sequence, voltage presence, and correct operation within high-voltage installations, supporting electrical safety and maintenance operations. This amendment addresses both product reliability and usability across varying operational scenarios.

Key Topics

• Refined Testing and Performance Requirements:
  Amendment 1 clarifies the requirements for measuring voltage amplitudes, specifying a clearer test procedure for comparators, particularly when handling voltages from up to six times the maximum threshold.

• Phase Comparator Signal Limitations:
  The amendment introduces clearer instructions and markings for phase comparators supporting only one active signal, detailing acceptable input voltage ranges and associated limitations. Emphasis is placed on informing the user both via markings and instructions for use.

• Probe and Connection Enhancements:
  New requirements ensure probes are robustly attached, resistant to operational forces, and protected against buckling. Detailed dimensions for probe plugs are specified to bolster compatibility with IEC 62271-213 testing points.

• Vibration Testing Updates:
  The amendment revises vibration testing procedures, defining clear sweep frequencies, amplitudes, and orientation criteria. These updates enhance the reliability of phase comparators in physically demanding environments.

• Safety Marking:
  Improved marking requirements call for prominent warnings regarding signal limitations, further supporting user awareness and safety.

Applications

The enhanced requirements and clarifications in SIST EN IEC 62271-215:2021/oprA1:2026 are directly relevant to:

• Manufacturers of high-voltage switchgear and controlgear seeking compliance with up-to-date product safety and performance expectations.
• Utilities and electrical infrastructure operators who use phase comparators for routine maintenance, fault detection, and system commissioning.
• Testing laboratories needing standardized procedures and criteria for evaluating phase comparators with VDIS.
• Electrical engineers and maintenance personnel who require clear instructions and consistent operation of safety and verification equipment in substations or industrial high-voltage environments.

The practical value of this amendment lies in supporting safer operation and maintenance of high-voltage equipment by ensuring that phase comparators function reliably, provide clear indications, and communicate potential limitations clearly to end users.

Related Standards

For comprehensive safety and performance in high-voltage environments, the following related standards may also be relevant:

• IEC 62271-213: High-voltage switchgear and controlgear - Voltage detecting and indicating systems
• IEC 62271-200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
• IEC 62271-1: Common specifications for high-voltage switchgear and controlgear
• EN IEC 62271-215:2021: The base standard amended by this document, detailing core requirements for phase comparators used with VDIS

By adhering to SIST EN IEC 62271-215:2021/oprA1:2026 and its related standards, stakeholders can help ensure a high level of electromagnetic compatibility and operational safety within high-voltage installations, promoting globally consistent practice across the electrical industry.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2026
Visokonapetostne stikalne in krmilne naprave - 215. del: Fazni primerjalnik,
uporabljen z VDIS - Dopolnilo A1
Amendment 1 - High-voltage switchgear and controlgear - Part 215: Phase comparator
used with VDIS
Appareillage à haute tension - Partie 215: Comparateur de phase utilisé avec un vdis
Ta slovenski standard je istoveten z: EN IEC 62271-215:2021/prA1:2026
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
SIST EN IEC 62271- en
215:2021/oprA1:2026
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

17C/990/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62271-215/AMD1 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-04-10 2026-07-03
SUPERSEDES DOCUMENTS:
17C/944/CD, 17C/976/CC
IEC SC 17C : ASSEMBLIES
SECRETARIAT: SECRETARY:
Germany Mr Mark Kuschel
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 17, SC 17A
ASPECTS CONCERNED:
Electromagnetic Compatibility,Safety
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of CENELEC,
is drawn to the fact that this Committee Draft for Vote (CDV) is
submitted for parallel voting.
The CENELEC members are invited to vote through the CENELEC
online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which t hey are aware
and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clau ses to be
included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC c lauses. (See
AC/22/2007 or NEW GUIDANCE DOC).

TITLE:
Amendment 1 – High-voltage switchgear and controlgear – Part 215: Phase comparator used with VDIS

PROPOSED STABILITY DATE: 2035
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

IEC CDV 62271-215:2021/AMD1 © IEC 2026
FOREWORD
This amendment A1 of IEC 62271-215:2021 has been prepared by JWG 34 of technical
subcommittee 17C: ASSEMBLIES.
This amendment includes the following changes:
a) moving the specific requirement of the amplitudes of the single measuring voltage of VDIS
from 6.4 to 6.5.1 and giving precisions on the corresponding test in 7.5.1;
b) adding precision on limitation of the phase comparator providing only one active signal in
6.5.2 and the corresponding warning to be put in the marking and in the instruction for use;
c) precisions in 6.9 on the design of the male plug to be accepted by testing points;
d) Figure 8 void;
e) correction of vibration test in 6.15.3.
The text of this amendment is based on the following documents:
FDIS Report on voting
17C/XX/FDIS 17C/XX/RVD
Full information on the voting for the approval of this amendment can be found in the report on
voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC webs
...