Major tech MT Series - Safety Rules for High Voltage Phase Comparators

3
SAFETY RULES
● Only Personnel who are fully
trained
in the use of High Voltage
Phase Comparators should use this equipment.
● Be aware that the system that it will be used on are powered from
high voltages which are
lethal
.
● Before use, ensure that the Phase Comparators and any
accessories are
clean
, free from cracks or deep scores, and are
properly secured together.
● Only the proper rated Phase Comparators must be used. Ensure
that the Phase Comparator is
properly rated for the voltage
of
the system under test.
●
Test
the operation of
the Phase Comparator before and after
each test.
● Do not allow any part of the Phase Comparator except the
contact electrodes to come in contact with energized or earthed
items.
●
Safe Working distance
must always be observed.
●
Safety
insulated
Gloves and protective clothing
and glasses
must be when using the Phase comparator.
● The Phase Comparator must be
handled by one person only
.
● Do
not
insert the Phase Comparator
beyond its limit mark
into
the apparatus under test.
The Limit mark is the red band
.
● The Phase Comparator should
not be used as a synchronizing
device or a voltage detector
.
● The Interconnecting
lead/cord must not
be allowed to
come
within
100mm
(10cm) of the
hand guard and must not be
touched while testing.
● Before using the Phase Comparator in the testing of factory
assembled switchgear, the
manufacturer of the switchgear
must be consulted
as the suitability of the Phase Comparator in
such testing.
●
Always check for Phase Presence before testing between
phases. Ensure that voltage is present on both phases
before testing between phases.
● The Phase Comparators are not to be subjected to a constant
voltage for a period longer than 1 minute in every ve minutes.