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DFWK-12kV Cable Distribution Box
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Overview of the products
Adopting prefabricated live and touchable silicone rubber cable heads, fully sealed, fully insulated, maintenance free, reliable
to ensure personal safety; compact structure, small and beautiful appearance, stainless steel double-layer box, with a service
life of over 20 years; On the premise of not affecting the operation of the main network to implement regional power outage
maintenance and reduce the scope of power outages; able to be equipped with one or more SF6 load switches. The wiring
methods are flexible and diverse, with up to eight branch lines available, devices as lightning arresters, short circuit fault
indicators, current limiting fuses, etc. are selectable to meet with various user requirements.
Model and meaning
Electric technical parameters
Project
|
Unit
|
Parameters
|
Rated voltage
|
kV
|
12
|
Rated current
|
A
|
630
|
Power frequency withstand voltage (phase to ground)
|
kv/min
|
42
|
Lightning impulse voltage
|
kV
|
75
|
Rated breaking current
|
A
|
630
|
Rated short-circuit making current (peak)
|
kA
|
50
|
Rated short-term withstand current
|
kA/4s
|
25
|
Rated peak withstand current
|
kA
|
50
|
Rated breaking capacitance current
|
A
|
45
|
Rated breaking inductance current
|
A
|
16
|
Number of full load interruptions
|
|
>100
|
Number of mechanical operations for opening and closing
|
|
2000
|