DFT6 12 Series Cable Branch Box
DFT6-12 series cable branch box is a new power supply equipment that we design for coordinating 10kV's power network cable system. It is suitable at the cable node place in 10kV's system, and what It is as the electric energy accepts and distributing. This series cable branch box has unique structure and beautiful appearance, it especially is suitable widely at the place that small build-up area and higher requirement such as city street, residence area, high-rise, airport and wharf, etc.
The cable branch box is the transfer station that cable conveyed the electric energy, and is used in outdoor with the cable circuit to connect and breakout, branch and continues or changes.
Product features :
a. Join method is simple and reliable and it is convenient to install.
b. Full insulation and the structure is completely seals up, exempts maintenance and fight a flood water.
c. Once only few investment, and can save the investment of switch apparatus and cable.
d. Small cover area and is easy to coordinate surround environment.
Type designation :
Technical data :
FN26-12 SF6 load switch main technical data:
|
No.
|
Name
|
unit
|
parameter
|
|
1
|
Rated voltage
|
kV
|
12
|
|
2
|
Rated current
|
A
|
630
|
|
3
|
Rated short time withstand current
|
kA/s
|
25/2
|
|
4
|
Rated peak withstand current
|
kA
|
63
|
|
5
|
Rated short circuit making current
|
kA/times
|
50/2
|
|
6
|
Rated 1min power frequency withstand voltage
|
kV
|
42
|
|
7
|
Lightning impulse withstand voltage
|
kV
|
75
|
|
8
|
Mechanical endurance
|
times
|
10000
|
|
9
|
SF6 gas pressure
|
Mpa
|
0.04
|
|
10
|
Annual gas loss rate
|
|
<=1%
|
Cable head main technical data :
|
No.
|
Name
|
Unit
|
Parameter
|
|
1
|
Rated voltage
|
kV
|
12
|
|
2
|
Rated current
|
A
|
630 or under
|
|
3
|
Suitable cable section
|
Mm2
|
25-400
|
|
4
|
Resistance in connection point
|
¦Ì¦¸
|
40
|
|
5
|
Discharge in part
|
PC/kV
|
<=10/13
|
|
6
|
Rated short-time withstand current
|
kA/s
|
20/3
|
|
7
|
Rated peak withstand current(peak value)
|
kA
|
50
|
|
8
|
Rated 1min power frequency withstand voltage
|
kV
|
42
|
|
9
|
Lightning impulse withstand voltage
|
kV
|
75
|
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