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nVent ERICO Cadweld Certifications

Specifying the right exothermic welding system is critical to the life of a grounding system. Make sure to specify the original, nVent ERICO Cadweld for your next project.

The best connections for a grounding system go beyond just the right type; it’s imperative to ensure the connection system is certified to the most recent and rigorous testing standards.

nVent ERICO Cadweld meets and exceeds the most rigorous testing standards and product certifications for grounding connections. The list of standards that Cadweld complies to is extensive.

This list includes but is not limited to the following standards:

Institute of Electrical and Electronics Engineers (IEEE) Std. 837-2014


IEEE 837 – IEEE Standard for Qualifying Permanent Connections

  • Used in Substation Grounding - was developed specifically for the evaluation and qualification of grounding connectors for use in the rigorous substation environment.
  • It is the most rigorous testing standard for grounding connections that gives assurance the connection will perform over the lifetime of an installation.
  • Multiple nVent ERICO Cadweld connections have passed and exceeded the requirements of the latest edition of the standard. In 2014, a new version of IEEE 837 was published, and this version of the standard has a very demanding testing protocol for testing connections.
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Qualification Tests: nVent ERICO Cadweld Permanent Grounding Connectors 

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UL 467

  • UL 467 – Grounding and Bonding Equipment – is the ANSI standard for certifying grounding and bonding equipment. UL 467 applies to grounding and bonding equipment for use in accordance with Canadian Electrical Code, Part I, CSA C22.1, in Canada, the National Electrical Code, NFPA 70, in the United States, or the Standard for Electrical Installations, NOM-001-SEDE, in Mexico.
  • Multiple nVent ERICO Cadweld connections meet the requirements of the latest edition of the standard
  • UL 467 product listings can be found at UL Product iQ. Search for “ERICO” and look for file KDER.E220029.


  • American Railway Engineering and Maintenance-of-Way Association is focused on the development and advancement of both technical and practical knowledge and recommended practices pertaining to the design, construction and maintenance of railway infrastructure.
  • Communications & Signals Manual of Recommended Practice covering signal systems, track circuits, power supply, electrical protection, and positive train control (PTC)
  • nVent ERICO Cadweld exothermic welding is also included in AREMA® Manual for Railway Engineering, Chapter 4: Rail – Section 3.7 –Application of Rail Bonds

Other important standards:

Other important standards:

  • United States Department of Agriculture (USDA) Rural Utilities Service (RUS)
  • Telecommunications Industry Association (TIA)-607 – Telecommunications Bonding and Grounding (Earthing) for Customer Premises.
  • IEEE 80 – IEEE Guide for Safety in AC Substations.   
  • IEEE 81 – IEEE Guide for Measuring Earth
  • Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System, Part 1:  Normal Measurements.  
  • IEEE 1100 – IEEE Recommended Practice for Powering and Grounding Electronic Equipment, also known as the IEEE Emerald Book™ 
  • Guobiao (GB) 50169 – Code for Construction and Acceptance of Grounding Connection Electric Equipment Installation Engineering (China)
  • DL/T 621 – Grounding for AC Electrical Installations (China)
  • Australian/New Zealand Standard™ (AS/NZS) 1768 – Lightning Protection (Australia/New Zealand)
  • CENELEC - EN 50522 – Earthing of Power Installations Exceeding 1kV AC
  • Danish Standards Foundation (DS) HD 637 S1 – Power Installations Exceeding 1kV AC
  • International Electrotechnical Committee (IEC) 61936-1 – Power Installations Exceeding 1kV AC

Find out more.

For questions about nVent ERICO Cadweld product certifications and listings, please contact our technical support team. Or, for more nVent ERICO Product listings, check out our resource library.