
Safety instructions
8/214
Revision 06 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • 864-5091.9
Remove the front plate of the operating mechanism compartment
3
Due application
The switchgear corresponds to the relevant laws, prescriptions and standards applicable at the
time of delivery. If correctly used, they provide a high degree of safety by means of logical
mechanical interlocks and shockproof metal enclosure of live parts.
4
Qualified personnel
Description of
qualified personnel
Qualified personnel in accordance with these operating instructions are persons
who are familiar with transport, installation, commissioning, maintenance and operation of
the product.
Medium-voltage switchgear type 8DB10 must be installed by certified personnel with
supervisor status.
To get the required certificate, the personnel must have taken part successfully in a training
for assembly and installation of Siemens gas-insulated medium-voltage switchgear type
8DB10 at the Siemens Switchgear Factory Frankfurt.
This installation training provides detailed information about transport, design, installation
and operation of 8DB10 medium-voltage switchgear. After successful participation,
the participants get a certificate signed by the trainer.
DANGER
Risk of injury by release of charged operating springs when the front plate of the operating
mechanism is removed! Bruises or cuts at the hands can be the consequence.
➭ To avoid impermissible switching operations, switch off auxiliary voltage.
➭ To discharge the spring energy store in the operating mechanism, perform the following
operations before removing the cover:
- Trip the miniature circuit-breaker.
- Actuate the OFF pushbutton.
- Actuate the ON pushbutton.
- Actuate the OFF pushbutton.
- Disconnect the control cables from the low-voltage compartment.
➭ The spring energy store indicator must show "spring not charged".
Fig. 1:
Indication: "Spring not
charged"
Fig. 2:
Indication: "Spring
charged"
DANGER
The perfect and safe operation of this switchgear is conditional on:
➭ Observance of operating and installation instructions.
➭ Qualified personnel.
➭ Proper transportation and correct storage of the switchgear.
➭ Correct installation and commissioning.
➭ Diligent operation and maintenance.
➭ Observance of the instructions applicable at site for installation, operation and safety.