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Module Overview

Electrical Principles & Diagnostics

Electrical fundamentals, legislation, wiring/protective devices, safe isolation to GS38, cable termination, bonding, test instruments and heating-control fault diagnosis.

Module Content

Follow the lessons in sequence and complete the quizzes after each lesson.

1

Ohm's Law & Electrical PowerFree

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Protection Against Electric Shock

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Electrical Statutory Regulations

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BS 7671 & IET Guidance Documents

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Reading Electrical Plans & Diagrams

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Consumer Units & Protective Devices

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Lighting & Power Circuits

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Earthing, Bonding & ADS

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Electrical Accessories

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Current-Using Equipment & Specialist Controls

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Effects of Electric Shock on the Body

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Tool & Equipment Safety Classes

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The Safe Isolation Procedure, Step-by-Step

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Hand Tools for Electrical Work

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Cable Types

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BS 7671 Termination Requirements (Section 526)

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Terminal & Connection Types

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Cable Glands & Enclosure Entry

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Terminating Flexes & Single-Core Cables

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Terminating Flat Profile (Twin & Earth) Cable

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Installing Main Protective Bonding

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Fitting & Labelling BS 951 Bonding Clamps

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Electrical Test Instruments

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Central Heating Control Sequence of Operation

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Diagnosing Boiler Thermostats & Fans

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Diagnosing Air Pressure Switches

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Diagnosing PCBs & Ignition Components

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Diagnosing Thermocouples & Thermistors

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Alternative & Emerging Heat Sources

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Testing Immersion Heaters

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Isolating & Correcting Appliance Faults

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