Advanced Marine Electrics and Electronics Troubleshooting A Manual for Boatowners and Marine Technicians
at the farthest point from the source of the sig- nal. The unit can only tell you where the bouncing stops; it can’t determine i ...
For safety’s sake, the ABYC recommends always “rounding up” when using voltage drop tables. In this case, that means we have to ...
testing continuity and tracing circuits 45 The conductor circular mil area and stranding table from ABYC Standard E-11. (Courtes ...
CHAPTER 4 Testing AC and Grounding Systems for Polarity, Voltage Drop, Impedance, and Frequency I n the “old days,” the tools of ...
47 Checking for Polarity One of the most common errors in AC wiring is improper connection of the hot, neutral, or ground wire a ...
One of the limitations of the tester is that it will not detect reversal of the neutral and grounding conductors, which is a pos ...
to the source and a circuit breaker will trip, shutting off the circuit. Remember that the green ground wire is attached to the ...
So the SureTest’s indication of a “false” ground may be either a good or a bad thing, depending upon whether it has identified a ...
Since the SureTest 61-164 will also mea- sure peak voltage, you can get a feel for dis- tortion by calculating the theoretical p ...
52 electrical systems troubleshooting Expected Possible Possible Measurement Result Problem Causes Solutions Line voltage 108—13 ...
that if the circuit is protected by a GFCI (ground fault circuit interrupter) or a GFP (ground fault protection) device, the dev ...
significant when you consider circuit breaker ratings, because if the ASCC is greater than the ampere interrupting capacity (AIC ...
Here’s how to perform the GFCI test: 1 Plug the tester into the GFCI or GFCI- serviced receptacle. 2 Press the “GFCI” button on ...
56 electrical systems troubleshooting Testing line voltage. The SureTest shows 119 V at the out- let. Any reading within ±10% of ...
testing ac and grounding systems 57 Testing ASCC. The SureTest shows 0.08 kA (80 amps). This result won’t cause problems for the ...
58 electrical systems troubleshooting MAKING SURETEST ADAPTERS It’s relatively easy to make adapters to use the SureTest to chec ...
120 V systems combined, so each L, either 1 or 2, is actually a separate 120 V service. Remember the tool only comes equipped wi ...
CHAPTER 5 Temperature Monitoring as a Diagnostic Aid T he primary by-product of excessive electrical resistance is heat, which c ...
61 Infrared Heat-Sensing Gun So what should you look for when choosing a heat-sensing gun? Two specifications are important: tem ...
6:1 and 12:1, with various distances. (Note: The ratio is calculated in millimeters, so the standard inch measurements only appr ...
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