1. EAL Unit QELTK3/002: Understand environmental legislation, working practices and the principles of environmental technology systems 2. EAL Unit QELTK3/003: Understanding the practices and procedures for overseeing and organising the work environment 3. EAL Unit ELEC3/04a: Electrical installation planning, preparing and design 4. EAL Unit QELTK3/006: Understanding the principles, practices and legislation for the inspection, testing, commissioning and certification of electrotechnical systems and equipment in buildings, structures and the environment 5. EAL Unit QELTK3/007: Understanding the principles, practices and legislation for diagnosing and correcting electrical faults in electro technical systems and equipment in buildings, structures and the environment 6. EAL Unit ELEC3/008: Principles of electrical science Answers to 'Test your knowledge' Questions Answers to Classroom Activities Appendix A: Abbreviations, symbols and codes Appendix B: Formulas for electrical principles Glossary of terms Index.