Description
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Revision 06 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • 864-5091.9
18.4
Classification of 8DB10 according to IEC 62 271-200
Design and construction
Internal arc classification
18.5
Standards, specifications, guidelines
Basic prescriptions and
standards
The fixed-mounted circuit-breaker switchgear 8DB10 for indoor installation complies with
the following prescriptions and standards:
DANGER
Internal arc classification
➭ With internal arc classification IAC A FL, the area behind the switchgear is not tested
regarding the effects of internal faults. For this reason, access to this area must be
prevented during switchgear operation.
Protect the area behind the switchgear, e.g. by means of a barrier in form of a chain, a tape
or a beam.
Partition class
PM (partition of metal)
Loss of service continuity category
LSC 2
Accessibility to compartments
Busbar compartment
Tool-based
Switching-device compartment Tool-based
Low-voltage compartment
Tool-based
Cable compartment
Tool-based
Designation of the internal arc classification IAC
IAC class for
- Wall-standing
arrangement
IAC A FL 40 kA, 1 s
- Free-standing
arrangement
IAC A FLR 40 kA, 1 s
Type of accessibility A
Switchgear in closed electrical service location
Access “for authorized personnel only“ according to IEC 62 271-200
- F
Front
- L
Lateral
- R
Rear (for free-standing arrangement)
Rated short-time withstand current
40 kA
Rated duration of short circuit
1 s
IEC/EN standard
VDE standard
Switchgear
62271-1
0671-1
62271-200
0671-200
Devices
Circuit-breakers
62271-100
0671-100
Disconnectors/earthing switches
62271-102
0671-102
Voltage detecting systems
61243-5
0682-415
Surge arresters
60099
0675
Degree of
protection
IP code
60529
0470-1
IK code
62262
0470-100
Insulation
60071
0111
Instrument
transformers
Current transformers
60044-1
0414-1
Voltage transformers
60044-2
0414-2
Installation and earthing
61 936-1 / HD 637 -S1
0101
Insulating gas SF
6
Use and handling
62271-4
0671-4
Specification for new SF
6
60376
0373-1
Guidelines for the checking and
treatment of SF
6
taken from electrical
equipment
60480
0373-2
Environmental conditions
60721-3-3
DIN EN 60 721-3-3