Megger TTR310 - Safety

AVTMTTR310 Rev 8 May 2016
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Safety
The test set and the specimen to which it is connected are a possible source of
high-voltage electrical energy and all persons making or assisting in tests must
use all practical safety precautions to prevent contact with energized parts of the
test equipment and related circuits. Persons actually engaged in the test must
stand clear of all parts of the complete high-voltage circuit, including all
connections, unless the test set is de-energized and all parts of the test circuit are
grounded. Persons not directly involved with the work must be kept away from
test activities by suitable barriers, barricades, or warnings.
Treat all terminals of high-voltage power equipment as a potential electric shock
hazard. There is always the possibility of voltages being induced at these
terminals because of proximity to energized high-voltage lines or equipment.
Always disconnect test leads from power equipment before attempting to
disconnect them at the test set. The ground connection must be the first made
and the last removed. Any interruption of the grounding connection can create
an electric shock hazard.
This instrument operates from a single-phase power source. It has a three-wire
power cord and requires a two-pole, three-terminal, live, neutral, and ground type
connector. The voltage to ground from the live pole of the power source must
be within the following rated operating voltage:
For Cat. No. TTR310/ TTR310E 120 V  10%, single phase, 60  2 Hz
For Cat. No. TTR310-47/ TTR310E-47 230 V  10%, single phase, 50  2 Hz
The neutral pole must be at ground potential. Before making connection to the
power source, determine that the instrument rating matches the voltage of the
power source and has a suitable two-pole, three-terminal grounding type
connector.
The power input plug must be inserted only into a mating receptacle with a
ground contact. Do not bypass the grounding connection. Any interruption of
the grounding connection can create an electric shock hazard. Determine that the
receptacle is properly wired before inserting the plug.
For test sets energized with 230 V input, the neutral terminal of the input supply
cord (white or blue lead) must be connected to the neutral pole of the line power
source. The ground terminal of the input supply cord (green or yellow/green