Operating and Maintenance Instructions
General
1HSB435409-100 en1 1
1. General
These Operating and Maintenance Instructions apply to the SF
6
circuit-breaker type
LTB E.
The instructions contain recommendations for the care and guidelines for the
maintenance of high-voltage circuit-breakers the LTB E type. The instructions are
divided into four parts:
• Inspection intervals
• Instructions for preventive maintenance of circuit-breakers
• Instructions for preventive maintenance of operating mechanism
• Fault correction maintenance
Periodic maintenance must be carried out at the the time or operation intervals
specified.
Fault correction maintenance is related to the faults detected. The fault correction
maintenance described in this Manual involves the replacement of defective units. If
the user chooses to try and repair a defective unit instead, specialist knowledge is
often needed. This will not be found in the Manual.
The equipment must be overhauled in accordance with specified criteria, e.g. after a
certain number of operations. Overhaul of the equipment must be entrusted to
authorised service personnel.
1.1 Warning text
Careful attention must be given to text marked with:
DANGER
indicates an immediate hazardous situation that, if not avoided, will result
in death or serious personal injury.
WARNING
indicates an immediate hazardous situation that, if not avoided, can result
in death or serious personal injury.
CAUTION
indicates a hazardous situation than can result in minor or moderate
injury.
N.B. is used for hazards that may only result in damage to the installation.
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