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

1.2.

General safety information

1.2.1. Operator duties
The scope of work for an operator of the HiPerGuard is to control and monitor the HiPerGuard from the
GDM, remote start/stop controls, or from the web page. An operator is not normally authorized to
undertake any maintenance, 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 HiPerGuard 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 MV UPS 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 electrical room:
– Observe the established rules and regulations for fire protection.
– Only fireman with appropriate personal protective equipment is allowed to enter the electrical room.
1.3.

Possible residual risk

The following risks can arise from a HiPerGuard 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 being transported, installed, 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.
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