REF 542plus switchbay protection and control unit
Manual Part 3: Installation and Commissioning
1VTA100004-en DMS,2001-10-04
REF542
plus
: Installation and Commissioning
11 / 80
3.3.2
Specific safety information
Five safety rules
Warning!
The five safety rules according the so called "VBG4 Electrical Substations and
Equipment“ must be observed in all circumstances for personal safety:
1. Isolate the system before beginning work.
2. Secure against reactivation.
3. Ensure that there is no voltage.
4. Ground and short circuit.
5. Cover or shut out neighboring parts under power.
Additional safety standards
Warning!
The following safety standards must be observed in all circumstances:
1. IEC 60255 for protection relays in high-voltage substations
2. DIN 57627 plug connections
Working on and operating the device
Note
Only qualified personnel may work on and operate the device.
Qualified personnel are:
Entrusted with the setup, installation, commissioning and operation of the device and
the system in which it is installed.
Qualified and authorized to conduct switching operations in accordance with the
standards of safety engineering. This specifically includes switching on and off, isolat-
ing, grounding and signage.
Trained in safety engineering standards and are familiar with the maintenance and
use of safety equipment.
Trained in first aid.
