EUSR Approved Earthing, Brazing and Exothermic Welding

Course details

The EUSR Approved Earthing, Brazing and Exothermic Welding course is a two-day, intensive training programme designed to equip delegates with the knowledge and practical skills required to safely carry out earthing, brazing, and exothermic welding tasks on electrical installations and substation equipment.

Aligned with NSI 24 (or equivalent) and relevant Technical Guidance Notes, this course provides a detailed understanding of the UK’s earthing systems, the principles behind safe installation, and the correct application of brazing and exothermic welding techniques. Delegates will gain both theoretical knowledge and hands-on practical experience to ensure compliance, safety, and best practice in the field.

This course is delivered exclusively as a closed course for organisations requiring tailored training for their staff.

Who Should Attend

This course is suitable for staff across all levels who work on or around earthing systems, including:

• Electrical engineers and technicians
• Substation and HV installation operatives
• Contractors performing maintenance or repairs on earthing systems
• Utility and renewable energy personnel responsible for electrical installations
• Supervisors and safety officers overseeing earthing and welding activities

No prior experience is required, though candidates should be comfortable working on or around electrical infrastructure.

Course Content

This course blends classroom learning with practical application to ensure delegates understand and can demonstrate the safe and correct use of earthing, brazing, and exothermic welding techniques. The course content includes:

• Introduction and Site Safety Induction – Overview of course aims, health and safety requirements, and company procedures
• Electrical Background and Legislation – Recap of electrical theory, British Standards, and statutory requirements for earthing
• Earthing Systems in the UK – Types of systems, soil resistivity, seasonal variations, lightning protection, and implications for installation
• National Grid NSI 24 (or Equivalent) – Principles of main earth system bonds and temporary earth bonds, compliance requirements
• Technical Guidance Notes:
  • TGN (E)114 – Replacement or Repair of Stolen or Defective Earth Tape
  • TGN (E)187 – Guidance for Conductor Jointing in Substations
• Brazing and Exothermic Welding – Correct procedures, equipment setup, and safety precautions
• Earth Tape Installation – Techniques for connecting equipment to the main earthing system
• Practical Onsite Exercises – Minimum of 60 minutes per delegate to demonstrate brazing and exothermic welding on live training setups
• Risk Assessment and Emergency Procedures – Evaluating site-specific hazards, safe systems of work, and responding to incidents
• Written Assessment – Confirming understanding of theory, legislation, and technical procedures

Learning Outcomes

Upon successful completion of this course, delegates will be able to:

• Understand the basic principles of earthing and the different types of earthing systems in the UK
• Correctly interpret and apply NSI 24 (or equivalent) and relevant Technical Guidance Notes
• Safely perform brazing and exothermic welding procedures on main earthing systems
• Identify and mitigate risks associated with earthing and welding tasks
• Develop and apply Safe Systems of Work (SSOW) for earthing activities
• Demonstrate competence in both practical and written assessments

Mapped Training/Learning Outcomes

This course is aligned with:

• Health and Safety at Work Act 1974
• Electricity at Work Regs 1989
• Electrical Safety, Quality & Continuity Regulations (ESQCR)
• BS 7671:2018+A2:2022 – Requirements for Electrical Installations
• BS 7430:2011+A1:2015 - Code of practice for protective earthing of electrical installations
• National Grid Electricity Transmission NSI 24
• National Grid Technical Guidance Notes as below
• TGN (E)114 “Replacement or Repair of Stolen or Defective Earth Tape”
• TGN (E)187 “Guidance for Conductor Jointing in Substations”

Prerequisites

Delegates are required to bring full PPE suitable for practical exercises, including:

• Safety helmet
• Flame-retardant or flame-resistant overalls/apron
• Safety boots
• Brazing/Welding gloves
• Eye protection (impact-resistant clear safety goggles)
• High-visibility jacket and trousers
• Ensure all loose items are secured

No prior experience of earthing, brazing, or exothermic welding is required. Delegates should be prepared for both theory and practical sessions. A good level of written and spoken English is required.

Course Duration & Format

• Duration: 2 days
• Format: Instructor-led with practical demonstrations and exercises (minimum 60 minutes practical per delegate)
• Maximum Delegates: 6 per course
• Location: Closed course, delivered at a Pragmatic Training Centre or client-specified sites

Assessment & Certification

Delegates will be assessed through a combination of:

• Practical Assessment: Hands-on application of brazing, exothermic welding, and earthing repairs
• Written Assessment: Knowledge of NSI 24 (or equivalent), Technical Guidance Notes, and UK earthing standards

Upon successful completion, delegates will receive an EUSR-approved certificate, valid for three years, with the option of a half-day refresher at renewal.

Additional Information

• All practical exercises are fully supervised to ensure safety and adherence to EUSR and NSI 24 standards
• Training is tailored to organisational requirements and delivered as a closed group course
• Delegates should ensure PPE is clean, in good condition, and suitable for flame-based practical work
• We use the CADWELD®PLUS system for for the Exothermic Welding training