NG Competent Person Substations NSI6 and NSI8 Full

Course Duration:

One Day

Format:

In-Person

Location:

Eakring, Nottinghamshire, Blackley, Manchester, Graveley, Hertfordshire, Melksham, Wiltshire, Littlebrook, Kent, Langley Park, Durham

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Course Overview

*Please note, we are a 3rd party booker for this course which is delivered by National Grid Electricity Transmission*

The National Grid Competent Person (CP) Substations NSI6 & NSI8 Full course provides the essential training for individuals requiring Competent Person status in substation environments. This course focuses on NSI 6 (Work in Substations) and NSI 8 (Earthing High Voltage Equipment) and equips delegates with the knowledge and practical skills needed to safely carry out switching, isolation, and application of portable earths within National Grid substations.

Delegates will gain both theoretical understanding and hands-on experience to ensure full compliance with National Grid Safety Rules and procedural requirements for CP authorisation.

The National Grid Authorisation Training can only be booked either directly with NG or through the live NG Booking Portal via an approved provider, such as ourselves.

To Book this training please contact us on 01926 674340 or email Training@Pragmatic-consulting.co.uk

This course is typically delivered for groups of four or more delegates.
If you have fewer than four learners, please contact us — in many cases we can coordinate availability with other contractors to arrange a suitable training date.

Course Duration:

One Day

Format:

In-Person

Location:

Eakring, Nottinghamshire, Blackley, Manchester, Graveley, Hertfordshire, Melksham, Wiltshire, Littlebrook, Kent, Langley Park, Durham

Certification Awarded

National Grid Competent Person OHL

Valid for

Awarding Body

Who should Attend This Course

This course is for:

Individuals nominated for Competent Person authorisation in National Grid substations
Contractors and engineers requiring NSI 6 & 8 authorisation
Existing CPs looking to expand competence into substation environments
Employees undertaking tasks involving substation access and HV switching

Prerequisites

An NG Person OHL certificate
And have evidence of 9 days on a National Grid Working Party Register with Safety Document Numbers
Or have an existing NG Competent Person OHL

What To Have With You To Attend The Course

Assessment

Candidates are assessed through a combination of a multiple-choice written examination and a practical skills assessment, ensuring they can safely and accurately apply drain earths without contact with conductors. Passing both the knowledge and practical elements is mandatory for authorisation.

Course Content

The course combines practical and theoretical instruction to ensure delegates understand and can apply safe working procedures in substations. Key topics include:

Roles and Responsibilities of a Competent Person

Duties under National Grid Safety Rules
Accountabilities for substation access, switching, and isolation

Safety Documentation & Control

Use of Permit for Work and Sanction for Test procedures
Correct application, review, and management of safety documents

NSI 6 – Substation Safety Procedures

Access control, site hazards, and safety clearances
Safe systems of work in substation environments

NSI 8 – Earthing High-Voltage Equipment

Application and removal of portable earths
Electrical risk management and control measures

Practical Switching and Isolation

Supervised exercises for safe switching of substation equipment
Coordination with Control Engineers for live operational scenarios

Risk Assessment and Emergency Procedures

Identifying hazards
Implementing mitigation strategies and emergency protocols

Documentation & Operational Scenarios

Maintaining accurate records
Applying procedures to real-world substation tasks

Learning Outcomes
By the end of the course, delegates will be able to:

Demonstrate competence in substation access, switching, isolation, and earthing in compliance with NSI 6 & NSI 8.
Safely manage portable earths and work under National Grid CP procedures.
Apply and control safety documentation effectively (Permit for Work / Sanction for Test).
Qualify for Competent Person authorisation under NG substation safety standards.
Understand practical coordination requirements with Control Engineers and site personnel.

Additional Information

Useful documentation includes:

National Grid Safety Rules
NSI 2 – Work on or near High Voltage Overhead Lines
NSI 4 – Work on Low Voltage Systems
NSI 6 – Access to Towers and Substations
NSI 8 – Earthing Responsibilities
NSI 30 – Additional safety guidance

Authorisation Scope: Includes supervised practical exercises for switching, isolation, and portable earth application.

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