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USE R GUI DE | UVC -5 CO NVE Y OR 10
3.3 General electrical hazards
Danger area Danger group Consequences Danger source
Switch room Electrical hazards Burns
Lethal electrical shock Electric arc; live components; short-
circuit; overload
Parts which have become electrically
live due to faults
Hazard description
In all stages of service life, electrical hazards may
occur which endanger the entire staff of the system
operator and service personnel.
•
Touching the voltage connections during bulb
replacement
•
Touching live parts
•
Touching the conductive parts which become
electrically live due to faults
Protection aim
Avoiding the contact with hazardous voltage by
means of a constructive solution. Live components
are located in the switch room which can only be
opened using suitable tools. Heating elements are
also protected against direct contact.
Protective measures
•
Before carrying out work on the device, it must
be disconnected from the power supply.
•
Live parts are only accessible if a suitable tool is
used.
•
Protection against direct and indirect contact
(basic protection) is provided (see appendix 1,
no. 2.18 BetrSichV (Regulation of Industrial
Safety)).
• No hazardous voltage on the housing of
components or the system due to protective
grounding (equipotential bonding).
• Installation of main switch and use of protective
low voltage for device control.
• Warning labels on the device and warning notes
in the operating manual.
• Installation of RCD - residual current circuit
breakers (option).
In general
•
The 5 safety rules have to be observed (DIN
VDE 0105-1 / DIN EN 50110-1).
• Work on electrical systems and pieces of equipment
must only be performed by qualified electricians
(defined operations) (BGV A3, DIN EN 50110-1).
•
Use insulated tools only.
•
Use suitable personal protective equipment.
Safety rules:
1. Disconnect
2. Secure against switching on again
3. Make sure that there is no voltage on all poles.
4. Ground and short-circuit
5. Cover or shield adjacent live parts
Valid standards:
BGV A3, BGR A3, DIN 57100, DIN VDE 0101, DIN
EN 50 110-1, DIN EN 60529
Residual risk
When using electronical or electrical components,
there may always be a defective one which no longer
fulfills the safety function (e.g. connections protected
against unintentional contact, live components). To
minimize this risk, the device must be maintained at
regular intervals. The recommended maintenance work
and intervals are indicated in the operating manual. To
minimize the residual risk, the following measures are
recommended:
• Regular maintenance to avoid damage to the
lamp or lamp breakage.
• Electrical check of the device during
commissioning (e.g. insulation values, residual
current).
•
Repeated, regular check of the electrical parts.
• During all work on electrical components, the 5
safety rules must be observed.