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2
SAFETY
12 TTRU3 User Manual www.megger.com
2.1 Responsible User
Only qualified and trained operators should operate
the TTRU3. Operator must read and understand
this entire Instruction Manual prior to operating the
equipment. Operator must follow the instructions
of this Instruction Manual and attend the equip-
ment while the equipment is in use. In the event of
equipment malfunction, the unit should immediately
be de-energized and returned to Megger for repair.
The Safety precautions herein are not intended to
replace your Company’s Safety Procedures. Refer to
IEEE 510 - 1983, IEEE Recommended Practices for
Safety in High-Voltage and High-Power Testing, for
additional information.
2.2 Symbols
Caution, possibility of electric shock
Warning, refer to User Manual
Emergency Stop
2.3 General Precautions
The TTRU3 and the Unit Under Test
(UUT) should both be considered
sources of instantaneously lethal levels
of electrical energy.
Observe the following safety
precautions:
• Observe all safety warnings on the equipment.
They identify areas of immediate hazard that
could result in injury or death.
• Use this equipment only for the purposes
described in this manual. Observe strictly the
Warning and Caution information provided in
this manual.
• Treat all terminals of the TTRU3 and high-volt-
age power equipment systems as potential
electric shock hazards. Use all practical safety
precautions to prevent contact with energized
parts of the equipment and related circuits.
• Use suitable barriers, barricades, or warnings to
keep persons not directly involved with the work
away from test activities.
• Never connect the test equipment to energized
equipment.
• Do not use in an explosive atmosphere.
• Use the grounding and connection procedures
recommended in this manual.
• The ground connection must be the first
made and the last removed. Any inter-
ruption of the grounding connection can
create an electrical shock hazard.
• Always disconnect leads from UUT
before disconnecting them from the
TTRU3
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