AM2S - Section B: Dead Tests: Continuity of Bonding Conductors

In this step-by-step electrical inspection and testing tutorial, we demonstrate how to carry out the continuity test of main protective bonding conductors in accordance with BS 7671 and Guidance Note 3. This is one of the first dead tests completed during the initial verification of a new electrical installation and is an essential skill for apprentices, electricians, and anyone preparing for the AM2 assessment. The video begins by explaining the importance of carrying out inspection and testing in the correct sequence before energising an installation. We also cover the importance of checking that your multifunction tester is correctly calibrated and demonstrate how to zero the test leads to ensure accurate low-resistance measurements. During the practical demonstration, you'll learn: Why continuity testing is the first electrical test carried out during initial verification. How to prepare your multifunction tester for continuity testing. How to correctly zero your test leads before taking measurements. How to test the continuity of the main water and gas protective bonding conductors. Why bonding conductors must be disconnected from the Main Earth Terminal (MET) before testing. How parallel earth paths can produce misleading readings if the conductors are not isolated. The maximum acceptable resistance value for main protective bonding conductors (0.05 Ω). How to verify the integrity of bonding clamps by testing directly from the pipework. Why low-resistance bonding is critical for fault protection and automatic disconnection of supply. Common mistakes that can lead to incorrect continuity readings. How to correctly record the results on an Electrical Installation Certificate (EIC). Where continuity of main protective conductors is documented within the BS 7671 model forms. This tutorial provides clear practical guidance alongside the theory behind the testing procedure, helping you understand not only how to perform the test, but why each stage is important. Whether you're studying Level 2 or Level 3 Electrical Installation, preparing for your AM2, or simply refreshing your inspection and testing knowledge, this video provides a clear walkthrough of one of the fundamental tests required during initial verification. If you found this video helpful, don't forget to Like, Subscribe, and turn on notifications for more electrical installation, inspection, testing, and AM2 preparation tutorials. #Electrical #Electrician #InspectionAndTesting #ContinuityTesting #MainProtectiveBonding #BS7671 #GuidanceNote3 #AM2 #ElectricalTraining #InitialVerification #ElectricalInstallation #18thEdition #2391 #MultifunctionTester #ElectricalEngineering