IEC 61557-10-2024 PDF

Full title and description

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC — Equipment for testing, measuring or monitoring of protective measures — Part 10: Combined measuring equipment for testing, measuring and monitoring of protective measures (IEC 61557-10:2024, Edition 3).

Abstract

This part of IEC 61557 specifies requirements, performance criteria and tests for handheld or portable combined measuring instruments that integrate two or more functions for testing, measuring or monitoring protective measures in low-voltage distribution systems (for example insulation, continuity, earth resistance, loop/line impedances and RCD/ residual current testing where covered by other parts). It defines essential safety, accuracy and information requirements for devices that consolidate functions covered in other parts of the IEC 61557 series while allowing combination with functions outside the series when appropriate.

General information

• Status: Published (current international standard).
• Publication date: 4 October 2024 (IEC publication / European adoptions December 2024 — national adoptions vary by body).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 17.220.20; 29.080.01; 29.240.01 (measurement of electrical/magnetic quantities; electrical insulation; power distribution).
• Edition / version: Edition 3.0 (2024).
• Number of pages: Typically published as a short technical part — national publications list approximately 16 pages (some national adoptions reference 16–19 pages depending on layout).

Scope

This part of IEC 61557 applies to measuring equipment that combines several measuring functions or methods of testing, measuring or monitoring — as specified in the respective parts of IEC 61557 — into a single apparatus. It covers functional, performance and safety requirements for combined instruments, including when functions covered by IEC 61557 are combined with other measurement or test functions not themselves in the series. The document is intended to be read in conjunction with IEC 61557‑1 and the specific parts of the series that define individual test functions.

Key topics and requirements

• Definition and classification of combined measuring equipment and permitted combinations of functions.
• Functional and performance requirements (accuracy, measurement ranges, signal conditioning) for combined instruments.
• Electrical and mechanical safety requirements, including protective measures for operator safety.
• Environmental and EMC considerations where relevant to measurement performance.
• Marking, user information, and instructions (including required warnings, calibration and verification guidance).
• Test methods and type tests to demonstrate compliance with the part’s requirements.

Typical use and users

Used by electrical test equipment manufacturers (for design and type-testing), test-laboratories, electrical contractors, maintenance teams and safety inspectors who require consolidated test instruments for verifying protective measures in distribution installations. Typical environments include industrial, commercial and residential electrical installation testing, periodic inspection and maintenance, and field service diagnostics.

Related standards

IEC 61557-10:2024 is part of the IEC 61557 series (general part IEC 61557-1 plus parts addressing specific tests such as insulation, continuity, earth resistance, loop impedance, and RCD testing). It replaces and updates requirements from the previous edition IEC 61557-10:2013 and is implemented in national/adopted forms as EN IEC 61557-10 and other national standards. Users should consult the individual IEC 61557 parts for function‑specific requirements and IEC 61557-1 for general requirements.

Keywords

IEC 61557-10, combined measuring equipment, low-voltage safety, protective measures testing, insulation, earth resistance, loop impedance, RCD testing, test instruments, edition 3 (2024).

FAQ

Q: What is this standard?

A: IEC 61557-10:2024 is the third edition (2024) of the part of the IEC 61557 series that specifies requirements for combined measuring equipment used to test, measure and monitor protective measures in low-voltage distribution systems.

Q: What does it cover?

A: It covers functional, performance, safety, marking and testing requirements for instruments that combine two or more measurement or test functions (those covered by other IEC 61557 parts and, in some cases, functions outside the series) into one apparatus.

Q: Who typically uses it?

A: Manufacturers of electrical test equipment, test laboratories, electrical contractors, maintenance/inspection teams and safety/regulatory authorities involved in electrical installation verification and maintenance.

Q: Is it current or superseded?

A: Current — IEC 61557-10:2024 (Edition 3.0) was published in October 2024 and supersedes IEC 61557-10:2013. National/adopted dates vary (European adoptions appeared in late 2024).

Q: Is it part of a series?

A: Yes — it is part of the IEC 61557 series (equipment for testing, measuring or monitoring of protective measures in low-voltage distribution systems). It is intended to be used alongside IEC 61557-1 and the individual parts that define specific test methods.

Q: What are the key keywords?

A: Combined measuring equipment; protective measures; low-voltage; test instruments; IEC 61557; insulation; earth resistance; loop impedance; RCD/residual current testing.