Megger SMART THUMP ST16, User Manual

Page: 13 / 62

SAFETY
AVTMST16 Rev 1 May 2016
3
instruments should only be operated under tempered conditions. It is not
allowed to operate Megger products in direct contact with humidity, water or
near aggressive chemicals nor explosive gases and fumes.
What to Do if Equipment Malfunctions
The equipment may only be used when working properly. If irregularities or
malfunctions appear which cannot be solved consulting this manual, the
equipment must immediately be put out of operation and marked as not
functional. In this case inform the person in charge who should inform the
Megger service to resolve the problem. The instrument may only be operated
when the malfunction is resolved.
Five Safety Rules

The five safety rules must always be followed when working with HV (High
Voltage):

De-energize

Protect against re-energizing

Confirm absence of voltage

Ground and short-circuit
 Cover close by energized components
Using cardiac pacemaker
Physical processes during operation of high voltage may endanger persons
wearing a cardiac pacemaker when near these high voltage facilities
Fire fighting in electrical installations

According to regulations, Carbon Dioxide (CO
2
) is required to be used
as extinguishing agent for fighting fire in electrical installations.

Carbon Dioxide is electrically non conductive and does not leave residues.
It is safe to be used in energized facilities as long as the minimum
distances are maintained. A
Carbon Dioxide fire extinguisher must be
always available within electrical installations.

If, contrary to the regulations, any other extinguishing agent is used for fire
fighting, this may lead to damage at the electrical installation. Megger
disclaims any liability for consequential damage. Furthermore, when using
a powder extinguisher near high-voltage installations, there is a danger that
the operator of the fire extinguisher will get an electrical shock from an ARC
FLASH (voltage arc-over created by the powder dust cloud).

It is essential to observe the safety instruction on the extinguishing agent.

Applicable is DIN VDE 0132 in Germany