
City & Guilds High Voltage Accredited Programmes
City & Guilds accredited programmes provide industry‑recognised certification, ensuring training meets strict quality standards and that candidates gain the skills needed for safe, competent work. At our dedicated Stockton‑on‑Tees High Voltage Training Centre, we offer accredited high voltage courses covering HV switching, substation access, high voltage testing, cable fault diagnosis, and offshore systems. Our courses prepare engineers, electricians, and technicians for roles such as HV Authorised Person, Switching Engineer, Substation Technician, and Offshore Electrical Engineer.
Type: Safety & Authorisation | Testing | CAT
City & Guilds HVSO2 Safe Access to High Voltage Substations & Switchrooms Course
£350
£420
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Entry Level
HVSO6 Practical Introduction to the Safe Operation of High / Low Voltage Switchgear (15kV) Course
£950
£1140
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★ Popular
City & Guilds HVSO1 Limited Operation of HV Power Systems for Authorised Person Course
£1295
£1554
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★ Popular
City & Guilds HVSO4 Safe Switching Operation of HV Power Systems for SAP Course
£1495
£1794
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15kV Upgrade
City & Guilds HVSO10 Safe Operation of 33kV HV Power Systems Course
£749
£898.80
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HVSO5 High Voltage Sanction for Test Receipt Authorisation Course
£950
£1140
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Offshore
HVMARSO1 Marine & Offshore Safe Operation of HV Power Systems for Authorised Person Course
£1100
£1320
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Offshore
City & Guilds HVMARSO4 Marine & Offshore Safe Switching of HV Power Systems for SAP Course
£1495
£1794
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HVAE1 High Voltage Systems for Authorising Engineer (AE) Course
£749
£898.80
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Renewables
City & Guilds HVWP1 Wind Turbine Safe Switching of Power Distribution Networks for SAP Course
£1495
£1794
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LV Switchgear
City & Guilds LVSO12 Low Voltage for Authorised Person Course
£1395
£1674
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Arc Flash Hazard Appreciation Safety Course
£295
£354
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Refresher
HVSO3 Refresher Limited Safe Switching of HV Power Systems for Authorised Person Course (HVSO1 Refresher)
£749
£898.80
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Refresher
HVSOR4 Refresher Safe Switching Operation of HV Power Systems for SAP Course (HVSO4 Refresher)
£749
£898.80
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City & Guilds HVTC3 High Voltage Cable Spiking & Identification Course
£499
£598.80
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★ Popular
City & Guilds HVTC1 Dielectric Strength Testing Course
£399
£478.80
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City & Guilds HVTC2 High Voltage Earth Electrode Testing Course
£499
£598.80
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HVPRO1 Fundamentals of High Voltage Protection & Relay Testing Course
£1495
£1794
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Transformer Construction, Testing & Maintenance Course
£749
£898.80
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TDR Cable Fault Location Course
£499
£598.80
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HVTC5 High Voltage Cable Sheath Testing Course
£499
£598.80
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CAT & Genny Operator Course
£150
£180
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BTAC020 Underground Cable Fault Location Course
£499
£598.80
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Did you Know That We Calibrate CAT Equipment?
Ensure your cable locating equipment remains accurate, reliable, and fully compliant with industry standards, covering most popular brands.
More Info
Begin with an HV awareness course, such as the City & Guilds HVSO2 Safe Access to Substations & Switchrooms Course, to understand risks, regulations, and basic operational knowledge.
For career progression, you need an Authorised Person (AP) Course to operate, isolate, and work on HV systems.
Having relevant low voltage electrical knowledge and experience is often a prerequisite to any HV course.
Yes. Bespoke HV training programmes can be delivered on your own systems, tailored to your equipment and operational procedures.
Overseas training is also available, so organisations with international operations can receive the same practical, site-specific instruction.
Please contact us or view our business training solutions page for more information.
Completion of a suitably rigorous High Voltage course is strongly recommended (and may be necessary) to help ensure compliance with health‑and‑safety legislation, in particular the Electricity at Work Regulations 1989. Under those regulations, employers (and other duty‑holders) have a legal obligation to ensure that anyone working on or near electrical systems has the requisite technical knowledge or experience to prevent danger or injury.
Regulation 16 of the EAW requires that individuals working on electrical systems must be ‘competent’ — this may be demonstrated via relevant training, experience, supervision, or a combination thereof, depending on the nature of the work. While the regulations do not explicitly define ‘high voltage’ or mandate a specific training syllabus, industry‑recognised HV training courses (e.g. ‘Authorised Person – High Voltage‘) are widely accepted means of demonstrating competence for more hazardous work.
Our HV training courses combine compliance with statutory requirements, guidance on safe working practices (for example those set out in HSE guidance), and industry best practices relevant to the specific system and environment. This helps ensure personnel, including employees or freelancers, are properly prepared to work safely with high voltage systems.
Why Choose PASS?
Experts in High Voltage Courses
Our team is here to guide through your HV qualification.
Tutors with Years of Experience
Train with expert tutors to build skills, confidence, and City & Guilds-accredited high-voltage qualifications.
Trusted by HV Professionals
Since 2010, our Stockton HV centre has trained thousands of professionals.
High Voltage Courses Explained
High Voltage training is essential for electricians, ROV technicians, and other personnel working in industries such as offshore, rail, petrochemical, and utilities. Completing an HV course ensures you work safely and comply with health and safety legislation, including the EAWR (See our Electricity at Work Regulations 1989 (EAWR) course). Employers have a legal duty to ensure staff possess the knowledge and experience required to safely operate or maintain high voltage systems.
Our programmes include HV Authorised Person (AP) training, designed for those who will work on or near HV equipment, operate isolated systems, and manage permits to work. AP courses provide practical, hands-on experience in switchgear operation and safe isolation procedures, enabling personnel to demonstrate competence in line with regulatory requirements.
We also offer a Switchroom and Substation Access course, which focuses on safely navigating and working within live HV environments. This course provides an ideal entry point into HV work for electricians, site engineers, and maintenance staff who need to access HV switchrooms or substations as part of their roles, ensuring they understand the hazards and operate in full compliance with industry standards.
Refresher training is equally important to keep skills current and maintain compliance with evolving industry practices. By completing accredited HV courses, personnel enhance safety, maintain competence, and improve career prospects, opening opportunities in specialist sectors that rely on skilled high voltage professionals.


