Safety Information; Before Commencing Work: Isolating The Equipment From The Supply System And Ensuring That It Cannot Be Reconnected; Five Safety Rules For Work In Or On Electrical Systems - Siemens SIRIUS 3RW30 Manual

Safety information

2.1 Before commencing work: Isolating the equipment from the supply
system and ensuring that it cannot be reconnected.
Hazardous voltage Will cause death or serious injury.
• Disconnect the system and all devices from the power supply before starting work.
• Secure against switching on again.
• Verify that the equipment is not live.
• Ground and short-circuit.
• Erect barriers around or cover adjacent live parts.
Hazardous voltage Will cause death or serious injury.
Qualified Personnel.
The equipment / system may only be commissioned and operated by qualified personnel.
For the purpose of the safety information in these Operating Instructions, a "qualified person"
is someone who is authorized to energize, ground, and tag equipment, systems, and circuits
in accordance with established safety procedures.
2.2

Five safety rules for work in or on electrical systems

A set of rules, which are summarized in DIN VDE 0105 as the "five safety rules", are defined
for work in or on electrical systems as a preventative measure against electrical accidents:
1. Isolate
2. Secure against switching on again
3. Verify that the equipment is not live
4. Ground and short-circuit
5. Erect barriers around or cover adjacent live parts
These five safety rules must be applied in the above order prior to starting work on an
electrical system. After completing the work, proceed in the reverse order.
It is assumed that every electrician is familiar with these rules.
SIRIUS 3RW30 / 3RW40
Manual 01/2010, 535 1995-02 DS01
DANGER
DANGER
2
13