This video should help you understand why you must disconnect both end of the protective bonding conductor during your end point assessment AM2, AM2S or AM2E for apprentice electricians when doing the fault finding element of the assessment. Often at college you only have 2 short pieces of copper pipe to simulate the gas and water. In reality the water and gas pipes are connected together by other metalwork at say areas like boilers. In this video we show how to prove you have a continuous protective bonding conductor from the consumer unit or distribution board to the connection on the water and gas when you have installed the circuit wiring yourself. Next we look at the best way to test the protective bonding conductor when it's already install and possible has a fault on it. In this video I highlight the metalwork that creates this parallel Earth path and the importance of disconnecting both end of the protective bonding conductor under test. when fault finding.
🔵 Measuring the Continuity (Resistance in Ohms) of the Protective Bonding Conductor to Water and Gas • Measuring the Continui...
🔵 AM2 and AM2S 10 Stages of Safe Isolation for a 3 Phase Distribution Board (3 Phase Supply) How To • 10 Stages of Safe Isol...
🔵 Electrical Fault Finding Protective Bonding Conductor to Gas and Water. AM2 and AM2S Assessment • Electrical Fault Findi...
= 🕐 Time Stamps - Cut to the action 🕕 ==
00:00 - Testing the protective bonding conductor
00:35 - Protective bonding test video link
01:36 - 3 phase distribution board
02:07 - Safe isolation of a 3 phase distribution board
02:29 - Testing the protective bonding conductor to the water pipe clamp
03:13 - Testing the protective bonding conductor to the water pipe
04:16 - Testing the protective bonding conductor to the gas pipe clamp
04:34 - Testing the protective bonding conductor to the gas pipe
04:54 - Fault finding
05:37 - Getting a reading but the protective bonding conductor broken
06:14 - Parallel earth path explained
07:05 - Getting no reading but the protective bonding conductor is NOT broken
08:47 - Don't panic
09:37 - Disconnect from both ends
Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2, 3 plus AM2, AM2S and AM2E.
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