If you disconnect and arrange both ends of a conductor of a multi-conductor cable without any contact between the individual conductors, what would a low ohmic value between the ends of a single conductor indicate?
• Ohm’s law and resistance – what does a low resistance reading between two points on the same conductor tell you? • How a continuity test with an ohmmeter works on a single wire or conductor. • What a ground fault or short to ground would require in terms of connection to other conductors or structure.
• If both ends of all conductors are disconnected and separated, what paths for current are still possible between the two ends of one conductor? • On an ohmmeter, what’s the difference between a low resistance reading and a very high (or infinite) resistance reading in terms of the condition of the conductor? • Would a partial ground or short be possible if no conductor is touching any other conductor or the ship’s structure?
• Verify what low ohmic value means on an ohmmeter (near zero vs. very large number). • Confirm what condition is needed for continuity in a conductor between its two ends. • Check whether a ground fault or short circuit could exist when all other conductors and structure are isolated from the one being tested.
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