“A Stitch in Time...”
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Connections at the ma<strong>in</strong> power board, from which po<strong>in</strong>t the entire<br />
system can be tested to ground at one time, provid<strong>in</strong>g all switches <strong>in</strong> the<br />
distribution panel are closed.<br />
4. Appliances, Meters, Instruments & Miscellaneous Electrical Apparatus<br />
Figure 15<br />
Connections for test<strong>in</strong>g an appliance. The test is made between the<br />
conductor (the heat<strong>in</strong>g unit, motor, etc.) and exposed metal parts. The<br />
apparatus must be disconnected from any source of power and placed on<br />
some <strong>in</strong>sulat<strong>in</strong>g material.<br />
5. Control, Signal<strong>in</strong>g & Communication Cables<br />
Figure 16<br />
Connections for test<strong>in</strong>g <strong>in</strong>sulation resistance of one wire <strong>in</strong> a multiconductor<br />
cable aga<strong>in</strong>st all other wires and sheath connected together.<br />
30<br />
A STITCH IN TIME
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