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<blockquote data-quote="a1spark" data-source="post: 72368" data-attributes="member: 2229"><p>Welcome to the forum S.A,R.</p><p></p><p>Zs is performed at points around a circuit as required</p><p></p><p>Ze is performed at the incoming Supply</p><p></p><p>If it is a sub board then Ze would be classed as Zdb.</p><p></p><p>Ze [orZDB]</p><p></p><p>Perform safe Isolation .which will result in Main Isolator in OFF position.</p><p></p><p>Disconnect Main Earth conductor from Main Earth Terminal</p><p></p><p>Connect Earth lead from your tester via its croc clip to the Disconnected Earth conductor.</p><p></p><p>Connect Neutral Probe from your tester to Neutral connection of Incoming side of Main Isolator</p><p></p><p>Connect Live Probe from your tester to Line Connection of incoming side of Main Isolator</p><p></p><p>Press test on tester and note the reading...remove test leads</p><p></p><p>IMPORTANT ! Immediately reconnect the Earth Conductor to the MET..then switch isolator back on ...if required</p></blockquote><p></p>
[QUOTE="a1spark, post: 72368, member: 2229"] Welcome to the forum S.A,R. Zs is performed at points around a circuit as required Ze is performed at the incoming Supply If it is a sub board then Ze would be classed as Zdb. Ze [orZDB] Perform safe Isolation .which will result in Main Isolator in OFF position. Disconnect Main Earth conductor from Main Earth Terminal Connect Earth lead from your tester via its croc clip to the Disconnected Earth conductor. Connect Neutral Probe from your tester to Neutral connection of Incoming side of Main Isolator Connect Live Probe from your tester to Line Connection of incoming side of Main Isolator Press test on tester and note the reading...remove test leads IMPORTANT ! Immediately reconnect the Earth Conductor to the MET..then switch isolator back on ...if required [/QUOTE]
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