Positron 3782091C/50, User Manual

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Recommended Practices
60
8.2 Vertical Scan of a Composite Insulator (Preferred Method)
Place the Probe close to the low voltage end of the insulator and slide the Probe along the
insulator, moving the Probe from 1 skirt (shed) per second up to 10 skirts (sheds) per second,
toward the high-voltage end and withdraw the Probe.
To facilitate the manipulation, the hot stick should be almost vertical, per Figure 24.
Apply pressure toward the insulator to keep the sled against the insulators at all times.
Figure 24
Same procedure for
horizontal insulator