Special Applications; Rcd-Protected Circuit Wire Tracing; Finding Breaks/Opens - Amprobe AT-6010-EUR Manual De Usuario

4. SPECIAL APPLICATIONS

4.1 RCD-Protected Circuit Wire Tracing

Method 1
• Whenever possible use separate neutral connection. For this connect green test lead to a
separate neutral wire at the RCD or at a connection point as close to the RCD as it is possible.*
• Perform tracing as described in the Wire Tracing or Breaker/Fuse applications.
*Note: Please make sure that line/phase wire and separate neutral are connected to the same
RCD, otherwise the RCD will trip.
RCD
Method 2 – If separate neutral connection is not practical:
• De-energize the circuit.
• Connect a transmitter directivity to the wire as described in Wire Tracing method for
de-energized wires using separate ground connection (green test lead connected to the
separate ground instead of neutral wire).
• Perform tracing as described in the Wire Tracing or Breaker/Fuse applications.

4.2 Finding Breaks/Opens

It is possible to pinpoint the exact location where the wire is broken using the Wire Tracing mode,
even if wire is located behind walls, floors or ceilings:
1. Make sure that wire is De-energized.
2. Use the steps described in section 3.1 for separate ground connection to connect the Transmitter
and perform tracing.
3. For best results, ground all De-energized wires that run in parallel with additional test lead.
Figure 4.1: Example of separate neutral connection
Figure 4.2: Locating a break or open
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