PD IEC TS 60947-7-5:2021 - Low-voltage switchgear and controlgear Ancillary equipment. Terminal blocks for aluminium conductors

Standard Number: PD IEC TS 60947-7-5:2021

Pages: 34

Released: 2021-12-10

ISBN: 978 0 580 99099 1

Status: Standard

Overview

Introducing the PD IEC TS 60947-7-5:2021, a comprehensive standard that sets the benchmark for low-voltage switchgear and controlgear ancillary equipment, specifically designed for terminal blocks used with aluminium conductors. Released on December 10, 2021, this 34-page document is an essential resource for professionals in the electrical and electronics industry, ensuring the highest levels of safety, reliability, and performance.

Key Features

• Comprehensive Coverage: This standard provides detailed guidelines and specifications for terminal blocks used with aluminium conductors, ensuring compatibility and optimal performance in low-voltage switchgear and controlgear applications.
• Up-to-Date Information: Released in December 2021, the PD IEC TS 60947-7-5:2021 incorporates the latest advancements and best practices in the industry, making it a valuable resource for professionals seeking to stay current with industry standards.
• High-Quality Standards: As a recognized standard, it ensures that all terminal blocks for aluminium conductors meet stringent quality and safety requirements, providing peace of mind for manufacturers, installers, and end-users alike.
• Easy to Understand: With 34 pages of clear and concise information, this standard is designed to be user-friendly, making it accessible to both seasoned professionals and those new to the field.

Benefits

Adopting the PD IEC TS 60947-7-5:2021 standard offers numerous benefits, including:

• Enhanced Safety: By adhering to this standard, you can ensure that your terminal blocks for aluminium conductors meet the highest safety standards, reducing the risk of electrical faults and hazards.
• Improved Reliability: The guidelines provided in this standard help to ensure that terminal blocks perform reliably under various conditions, minimizing downtime and maintenance costs.
• Increased Efficiency: With clear specifications and guidelines, this standard helps to streamline the design, manufacturing, and installation processes, leading to increased efficiency and productivity.
• Regulatory Compliance: Meeting the requirements of this standard ensures compliance with relevant regulations and industry standards, helping to avoid potential legal and financial penalties.

Who Should Use This Standard?

The PD IEC TS 60947-7-5:2021 standard is an invaluable resource for a wide range of professionals, including:

• Electrical Engineers: Ensure that your designs and installations meet the highest standards of safety and performance.
• Manufacturers: Produce terminal blocks that comply with industry standards, enhancing your product's reputation and marketability.
• Installers: Gain confidence in the quality and reliability of the terminal blocks you use, reducing the risk of installation errors and failures.
• Regulatory Bodies: Use this standard as a benchmark for evaluating and approving terminal blocks for aluminium conductors.

Conclusion

The PD IEC TS 60947-7-5:2021 standard is an essential tool for anyone involved in the design, manufacture, installation, or regulation of low-voltage switchgear and controlgear ancillary equipment. By providing clear and comprehensive guidelines for terminal blocks used with aluminium conductors, this standard helps to ensure the highest levels of safety, reliability, and performance. Stay ahead of the curve and ensure your projects meet the latest industry standards with the PD IEC TS 60947-7-5:2021.

PD IEC TS 60947-7-5:2021

This standard PD IEC TS 60947-7-5:2021 Low-voltage switchgear and controlgear is classified in these ICS categories:

• 29.130.20 Low voltage switchgear and controlgear

This part of IEC 60947 specifies requirements for terminal blocks with screw-type or screwlesstype clamping units primarily intended for industrial or similar use and to be fixed to a support to provide electrical and mechanical connection. This document can be used for terminal blocks for connection between aluminium conductors or aluminium to copper conductors. It applies to terminal blocks intended to connect round conductors, with or without special preparation, having a cross-section between 2,5 mm² and 300 mm² (AWG 12 to 600 kcmil), intended to be used in circuits of a rated voltage not exceeding 1 000 V AC (up to 1 000 Hz) or 1 500 V DC.

This document can be used as a guide to qualify terminal blocks for conductors out of aluminium not complying with IEC 60228 (e.g. smaller than 10 mm², flexible or other materials). This document can also be used as a guide to qualify other types of terminal blocks for conductors out of aluminium other than feed through terminal blocks (e.g. partially insulated terminal blocks).

NOTE 1 AWG is the abbreviation of “American Wire Gage” (Gage (US) = Gauge (UK)).

kcmil = 1 000 cmil;

1 cmil = 1 circular mil = surface of a circle having a diameter of 1 mil;

1 mil = 1/1 000 inch.

This document does not apply to clamping units:

• dedicated to any other types of switchgear and controlgear;

• for connection by crimping, brazing, soldering or welding;

• for data and signalling circuits;

• for flat quick-connect terminations, insulation-piercing connecting devices and twist-on connecting devices, for which separate parts are under consideration.

NOTE 2 In case of use of special types of conductors (e.g. cladded conductors) which require a special preparation, this document can be used as a guide.

NOTE 3 In some countries, national regulation for installation rules can allow different cross-sections. For internal wiring (inside enclosures), other rules or product standards can be applicable.

NOTE 4 For connections to copper conductors only, IEC 60947-7-1:2009 is applicable.

NOTE 5 In USA, UL 1059 applies and in Canada, CSA C22.2 No. 158 applies.

Where applicable in this document, the term “clamping unit” is used instead of the term “terminal”. This is taken into account in case of reference to IEC 60947-1:2020.