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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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Jointer's Mate (DNO)


Cable Jointing is quite simply, jointing cables with a connector or joint mechanism to suit the job. An Electrical Jointer is responsible for installing and maintaining underground power cables, joining said lengths of cable and connecting underground cables to system parts such as overhead supply lines and electricity substations. The Jointer’s Mate assists the Jointer in these tasks on low and high voltage networks, with a trained background in electrical safety and jointing activities.

This Citrus Jointer’s Mate qualification enables delegates to demonstrate skill, knowledge, and competence to work effectively and understand what’s expected of them as a Jointer’s Mate.

Course Outline

Through a mix of practical and theory-based exercises and tutorials, delegates will cover general knowledge and awareness of Jointer’s Mate responsibilities and participate in practical activities to learn best practices and operating methods.

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. They must pass the assessment to qualify for the Citrus certificate of attendance, valid for three years.      

Once delegates have the certificate of attendance, this then allows them to work under personal supervision unitl they complete their trade test or authorisation assessment.

Course Programme

Delegates taking this Jointer’s Mate training will cover knowledge, skills and operating practice.

Course content includes:

  • Safe excavation and understanding 1:500 Drawings.
  • The skills and safe practices to support a competent Jointer
  • Jointing practices and procedures
  • Health and Safety rules and regulations relating to electrical works
  • Electrical distribution safety rules
  • Selecting the appropriate PPE for specific electrical works
  • Control of Substances
  • Hazardous to Health (COSHH)
  • How to strip cables
  • Low voltage and high voltage safety and awareness
  • Identifying cables and their usage
On Completion

Upon successfully completing this qualification, delegates will confidently:

  • Understand legal requirements and responsibility for the electrical industry
  • Identify a potential hazard and its potential risks
  • Select the appropriate PPE required for the work
  • Understand Electrical distribution safety rules
  • Identify and use the correct cables for electrical works
  • Know how to work in low and high voltage scenarios
  • Understand working in the Electrical Distribution Industry
Who Should Attend?

This Citrus Jointer’s Mate is designed for delegates without a background in the electrical industry who wants foundational development to work their way up to work as an Electrical Cable Jointer.

Course Duration

This is a five-day course. 

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

The content of this course includes awareness of periodic examinations of equipment but does not provide full training in maintaining equipment. Additional training is available, contact us to learn more.

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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