Important Instructions For Safe Use - Powertronix Quasar Service Manual

Service Manual

Important Instructions for safe use

GENERAL
The UPS must be approved engineer before it is put into ser
vice. Failure to observe this condition will invalidate any implied warranty.
In common with other types of high power equipment, dangerous voltages are present with
the UPS and battery enclosure. The risk of contact with these voltages is minimised as the
live component parts are housed behind a hinged lockable door.
Further internal safety screens make the equipment protected to IP20 standards.
No risk exists to any personnel when operating the equipment in the normal manner, follow
ing the recommended operating procedures.
All equipment maintenance and servicing procedures involving internal access, should be
carried out by trained personnel.
The UPS is for indoor use only. It must be protected from rain or excessive moisture and
installed in a clean environment, free from flammable liquids, gasses, or corrosive sub
stances. Do not put drinks, plants, or any other containers holding liquids, on top of the unit.
BATTERIES
Battery manufacturers supply details of the necessary precautions to be observed when
working on, or in the vicinity of, a large bank of battery cells. These precautions should be
followed at all times.
Particular attention should be paid to the recommendations concerning local environ
mental conditions and the provision of protective clothing, first aid and fire fighting facilities.
TEST EQUIPMENT
When the battery is under charge it is earth referenced about its mid point e.g. if the battery
is being charged at 460V the battery extremities will be =230V and 230V with respect to
neutral (earth). When using mains powered test equipment such as oscilloscopes in the
UPS high voltage area, always use a differential mode of operation to avoid the need to dis
connect the oscilloscope frame earth.
PERSONNEL
When working inside the UPS (trained personnel only) is recommended that protection be
worn to prevent eye damage, should an electric arc be struck by mishandling or severe
electrical fault.
Some of the power components are very heavy. If their removal is necessary ensure that
sufficient manpower is available, otherwise use adequate mechanical handling equipment.
When working in the general area of the UPS where high voltages are present, a second
person should be standing by to assist and summon help in case of accident.
3x3 UPS Preliminary Pages
Important Instructions for safe use
Prelim Page v