Aerial Testing; Applications - Fluke C9970 User Manual

C9970 Voltage Detector
Users Guide
Still holding the switch down, remove the Voltage Detector from the
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object and observe the LEDs:

The green LED means a safe condition.

The red flashing LED indicates hazardous voltages. If a hazardous
voltage is present, move away from the object and refer to your
company's safety procedures.

Aerial Testing

When working aloft in an insulated bucket or on a ladder where you are well
isolated from ground and near power transmission lines, the following
procedure is required to prevent false indications due to the voltage induced
on you.
Put on company-required protective equipment, such as a hard hat, eye
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protection, etc.
Place the conductive plastic probe end cap on the handle (clip end) of the
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Voltage Detector. Push on until firmly in place.
Perform a self check.
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Attach one end of the ground cord to a known earth ground. Attach the
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other end of the ground cord to the contact knob on the end cap.
Ascend to a convenient height to make the voltage test. Do not come in
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contact with the suspected hardware, light fixture, or its wiring.
Test the suspect object for hazardous voltage as described earlier and
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observe the LEDs:

If after you press the trigger and touch the probe tip to the object,
the green LED remains illuminated and the red LED remains off, you
may proceed with your work after placing a temporary bond (see
"Temporary Bond" on page 7).

If the red LED flashes, a hazardous condition exists. Descend
immediately and refer to your company's safety procedures.

Applications

Following are additional instructions and safeguards for more specific
applications. They expand the previous instructions, but do not replace them.
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