Safety Information - ABB REJ 527 Technical Reference Manual

ABB Substation Automation
Products and Systems
2.
!
!
!
!
1MRS750616-MUM
Technical Reference Manual

Safety information

Dangerous voltages can occur on the connectors, even though the auxiliary voltage
is disconnected.
National and local electrical safety regulations must always be followed.
The frame of the protection relay has to be carefully earthed.
Current transformer has to be short-circuited before disconnecting the relay from it.
Only a competent electrician is allowed to carry out the electrical installation.
REJ 527
7