General Safety Information; Possible Residual Risk - ABB HiPerGuard MV UPS User Manual

18 H I P E R G U A R D M V U P S U S E R M A N U A L
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1.2 General safety information

1.2.1. Operator duties
The scope of work for an operator of the HiPerGuard MV UPS is to control and monitor the MV UPS from the GDM,
remote start/stop controls, or from the web page. An operator is not normally authorized to undertake any main-
tenance, service or repair work. The operator may be authorized to provide assistance to a maintenance, service,
or repair technician, by performing his or her duties under the direction of a service team. If so, the operator must
be wearing PPE to the same level as those of the service team.
1.2.2. Before energization
Before the MV UPS is energized, inspect to make sure:
– Any maintenance work being done on the HiPerGuard has been completed and all tools and equipment
are removed.
– All covers on the HiPerGuard enclosures are securely fastened, and all doors are closed, locked, and/ or
bolted.
1.2.3. In case of fire
In case of fire in the UPS room:
– Observe the established rules and regulations for fire protection,
– Only fireman with appropriate personal protective equipment are allowed to enter the UPS room.
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1.3 Possible residual risk

The following risks can arise from a MV UPS system and pose a hazard to
people. These risks must therefore be considered by the system integrator
and/or the plant owner when assessing the risks of the machinery.
The HiPerGuard is a high energy power conversion machine. Components may be dislodged, or damaged while be-
ing commissioned, operated or serviced, due to, for example:
– External influence on, or damage to the equipment,
– Wrong parameter settings,
– Operation of the equipment outside the scope of the specifications,
– Faulty hardware.
Any one of these faults may cause the noisy ejection of high temperature materials and gases.
Hazardous touch voltages can be present on the HiPerGuard system components caused by, for example:
– Operation of the equipment outside the scope of the specifications,
– External influence on, or damage to the equipment,
– Induced voltages by external equipment,
– Condensation on equipment components or pollution,
– Faulty hardware.
For all the above reasons, always operate with all side panels in place and all doors shut and latched.