The Level 3 Diploma in Electrical Installation is designed for students who want to build on their existing skills and take the next step towards becoming a qualified electrician.
This course develops your understanding of more advanced electrical systems, combining technical knowledge with practical experience. You’ll learn how to design, install, test and maintain electrical systems, preparing you for real industry scenarios.
Recognised by employers, this qualification helps you stand out and shows you’re ready to progress into an apprenticeship, further training, or employment within the electrical industry. It’s an important step on the journey to becoming a fully qualified electrician.
C&G L3 Diploma Electrical Installations
Course overview
Course information
On this course, you’ll develop advanced knowledge and practical skills that prepare you for a career in the electrical industry.
Topics you will cover include:
• Principles of electro-technology
Build a strong foundation in how electrical systems work, including circuits, components, and how electricity is generated, distributed, and used.
• Environmental technology
Explore modern, energy-efficient systems and how the electrical industry is adapting to more sustainable technologies.
• Advanced principles of electrical science
Develop a deeper understanding of the science behind electrical installation, helping you apply theory confidently in practical situations.
• Inspection, testing and commissioning
Learn how to check and test electrical installations to ensure they are safe, meet regulations, and are ready for use.
• Fault diagnosis and rectification
Build problem-solving skills to identify faults in electrical systems and carry out effective repairs.
• Electrical system design
Understand how to design electrical installations for different types of buildings, considering safety, efficiency, and performance.
• Career awareness in building services engineering
Gain insight into the electrical industry and wider construction sector, helping you understand career pathways and opportunities available to you.
• BS7671 Wiring Regulations (optional unit)
Develop knowledge of industry-standard wiring regulations, an important qualification that employers look for when hiring electricians.
Throughout the course, you’ll learn a wide variety of skills and techniques in our well-equipped workshops. You’ll also have the opportunity to take part in national skills competitions such as KFE4Skills and work on community projects around Ashford, helping you build confidence, experience, and a strong portfolio of work.
Start date
01-09-2026