Power Transmission and Distribution

Transmission and Distribution: Testing, certification and advisory services

As demand for energy continues to increase, end-users require reliable, cost-effective electrical power. Intertek supports power utilities, manufacturers and Authorities Having Jurisdiction (AHJs) in their efforts to deliver effective power solutions to industrial, commercial and residential environments. With a combination of services ranging from testing, inspection and certification all the way through engineering and environmental advisory, Intertek drives safety, quality and efficiency throughout the entire Transmission & Distribution lifecycle.

Intertek’s global expertise and breadth of services span industries such as Power Generation, Hazardous Locations, Renewable Energy, Smart Grid Services, and Power Plant Integrity Management - all helping our clients optimize their people, processes and environments.

Equipment services:

Transmission & Distribution Equipment (TDE) is connected to the electrical grid and encompasses everything from Moulded Case Circuit Breakers, to LV switchgear assemblies through MV transformers, to high voltage substations and overhead lines. Intertek supports those in the TDE and related industries through testing, certification and advisory services. We provide local certification to extend your global reach, and our mark and deliverables are accepted by major electrical utilities and authorities around the world.

ASTA Mark and ETL Listing:
Founded in 1938, our ASTA team is delivering both IEC Type Test certification and equipment approval. Each project is witnessed by ASTA Observers which are responsible for conducting tests in accordance with ASTA requirements, standard specifications and for the accuracy of the recorded test results right through its presentation.

Similarly ETL delivers certification to IEEE / ANSI or again UL standards.

Certification of Type Test provides independent objective compliance of the equipment tested at one point in time.

Increasingly, end-users require independent on-going verification and validation of the equipment supplied to their network. Intertek support the value chain and offers ASTA Mark and ETL Listing. The ETL Mark is proof of equipment compliance to North American safety standards. Authorities Having Jurisdiction (AHJs) across the US and Canada accept the ETL Listed Mark. ASTA Mark is accepted in more than 40 countries.

Our services include:


We are striving delivering services and support which are applicable to your equipment and support network operators' needs. Whether your equipment will be commissioned in a hazardous environment requiring explosion proof protection or within a renewable assembly requiring crucial operational support for wind turbine installations, Intertek is part of your team, assisting you at all stages of your development.

Related Links


Further information on the industry and other resources for the industry can be found through the following Authorities Having Jurisdiction (AHJs):

Middle East

South-East Asia:




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