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Delivering training services for the Built Environment and Utility sectors since 2004, we operate from our purpose-built training facilities and regional offices located in Southeast London, the East Midlands and West Yorkshire, with the use of over 100 training centres nationwide.

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High Voltage Mock Trade Test (DNO)


Supplying large geographical areas, transport services, mains power, and more - high voltage electrical cables are critical to running the country but pose a significant risk to untrained operators. As such, training and testing within electrical is stringent, especially so in high, extra-high and above voltage works, to ensure everything meets safety and regulatory standards.

In this Citrus High Voltage Mock Trade Test, delegates will test their skills and knowledge to prove their competence in High Voltage Jointing before taking their final test with their Distribution Network Operator (DNO).

Course Outline

The Citrus High Voltage Mock Trade Test gives delegates the understanding, skill, knowledge, and competence to be confident to take their final test towards carrying out Jointing work on the High Voltage Network. The mock test will be taken through a mix of practical and theory-based exercises and tutorials.

The course reflects national standards and industry best practices and is fully accredited in line with regulations. In addition, choose to learn with Citrus, and delegates will benefit from our custom-built training facilities and customer-first approach.

Our occupationally and technically-experienced trainers coach delegates on this course in the Jointing School, completing the session with a practical observation and short answer question paper.

This is a mock trade test to prepare delegates for their trade test.

Course Programme

Delegates taking this High Voltage Trade Test qualification will cover knowledge, skills and operating practice.

Course content includes:

Completing a Poly/Poly Straight Joint
Completing a Transition Straight Joint 
Permit to work and safety documents

On Completion

Upon successfully completing this qualification, delegates will be able to:

Work and carry out testing on the High Voltage Network safely
Recognise the complete range of high voltage joints  
Prepare high voltage cables  
Identify and use appropriate safety equipment 

Who should attend?

This Citrus High Voltage Mock Trade Test is for any experienced operators needing test experience to take the final exam to work on high voltage networks.

Course Duration

Delegates take this comprehensive training over two days, completing the session with a practical and theoretical assessment.

Why Citrus?

We dedicate our efforts to unrivalled quality and the customer experience at Citrus Training. As a result, we are the leading UK-based provider of health, safety and technical training and assessment services to the Built Environment and Utility sectors.

Citrus Training serves 85 of the top 100 building services companies in the market. With over 20 years of collective experience, we offer advice and guidance for new and experienced entrants looking to work within the IDNO/DNO industry.

Our Electrical training is accredited, regulated, and of an exceptionally high standard. Delivered by our Electrical Safety trainers and DNO Trained Assessors, they also carry out competency pre-assessment and testing to work on IDNOs and DNOs.

Finally, we teach and promote current industry and legislative requirements to ensure delegates take them forward into their daily working lives, delivering courses at our nationwide, industry-leading and accredited training centres to offer the very best of training standards and quality assurance.

Things you need to know

This Citrus certified course has practical elements, so delegates must inform their trainer if they have any serious health issues, physical problems, special considerations or are taking any medication which may create difficulties in completing the session.

Delegates must be 18 or over. Before starting the course, they must inform their trainer of any special considerations, medication or physical restrictions that may cause difficulties in any part of the training.

National Coverage

Over 100+ training centres nationwide, with 150+ technical trainers, delivering upwards of 250+ courses to over 40,000+ delegates each year. Thats why we're the UK's trusted training provider.

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