Safety
7
2.1
Essential Safety Recommendations
Before connecting the instrument ensure that the device-to-be tested is completely de-
energized and isolated from both line and load. Every terminal should be checked and
verified before connection of the instrument. Ground connections may be left in place.
Never operate the equipment in an explosive environment or where there are flammable
gases or fumes
The instrument must always be grounded (i.e. a safety earth). It must never be operated in
a non-grounded configuration as this may result in electrical shock to the user or damage to
the instrument.
2.2
Summary
Note: Many accidents that happen around high voltage equipment involve personnel who are not
familiar, or perhaps too familiar, with high voltage equipment. Staying alert and ever watchful
requires constant training and awareness of the inherent hazards. The greatest hazard is the
possibility of getting on a live circuit. To avoid this requires constant vigilance - for oneself and for
one's fellow workers.
In addition to the obvious dangers, personnel should be alert to recognize subtle dangers as well.
Therefore,
all terminals of a device under test, unless grounded, should be considered to
be live while the test is in progress.
Remember: Safety, FIRST, LAST, and
ALWAYS !
