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Supplier Quality Audits for Medium-Voltage System Components

If you purchase components for your medium-voltage underground system, you can request that your suppliers undergo a factory audit to help improve your installations’ reliability and consistency.

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Regular audits of factories supplying components for medium-voltage underground systems can help improve the systems’ quality, reliability and safety. Audits help ensure that the factory meets the rigorous standards you expect and improve communication among all stakeholders involved.

While on-site, UL Solutions will assess your manufacturer’s capabilities, capacities, credentials, facilities, production line management and work force to help evaluate  the supply chain’s integrity.

You can also request that your suppliers present the inspection document once they have completed and passed our audit.


Through this program, you can gain a more comprehensive understanding of your suppliers’ reliability. Our trained auditors will look at your suppliers’ supply chain and will only issue a document once we are certain that the factory meets the applicable requirements. Once finished, you can have confidence that the medium-voltage system components you purchase have been evaluated for quality, safety and sustainability.

Why UL Solutions

  • Our history in certification and standards development makes us a trusted thought leader in the wire and cable arena. Stakeholders rely on us for research, knowledge and technical solutions to address reliability, safety and sustainability issues and advise on new technologies.
  • Comprehensive surveillance programs help ensure a robust supply chain and help reduce the risk and costs associated with substandard products.
  • As the global safety science leader, we deliver testing, inspection and certification (TIC), training and advisory services globally.

We continue to evolve our capabilities and services to meet your increasing needs. Our goal is to help you rapidly develop and launch safer, superior products and meet the shifting requirements of a changing world.


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