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Products
DFT6-40.5(12) KV Series Outdoor HV SF6 Cable Branch Box (Outdoor RMU)
DFT6-40.5(12) KV Series Outdoor HV SF6 Cable Branch Box (Outdoor RMU) is the transfer station that the cable conveyed the electric energy, and is used in outdoor with the cable circuit to connect and breakout, branch and continues or changes. It features simple connection method, convenience, flexible, full insulation and omniseal structure, waterproof, corrosion resistance, antipollution, maintenance free and safety.
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Product Description
1.Product Introduction
DFT6-40.5(12) KV Series Outdoor HV SF6 Cable Branch Box (Outdoor RMU) is the new power supply equipment that we design for coordinating 10kV/24kV power network cable system. It is suitable at the cable node place in 10 kV/24kV system, and what it is as the electric energy accepts and distributing. This series outdoor ring main unit has unique structure and beautiful appearance, it especially is suitable widely at the place that small build-up area and higher requirement in environment such as city street, residence area, high-rise, airport and wharf, etc.
2. Product Parameter (Specification) of DFT6-40.5(12) KV Series Outdoor HV SF6 Cable Branch Box (Outdoor RMU)
|
Item |
Unit |
Parameter |
Parameter |
|
Rated voltage |
kV |
12 |
24 |
|
Rated current |
A |
630 |
630 |
|
Rated short time withstand current |
kA/s |
25/2 |
25/2 |
|
Rated peak withstand current |
kA |
63 |
63 |
|
Rated short circuit making current |
kA/times |
50/2 |
63/2 |
|
1 min power frequency withstand voltage |
kV |
42 |
65 |
|
Lightning impulse withstand voltage |
kV |
75 |
125 |
|
Mechanical life |
Times |
10000 |
10000 |
|
SF6 gas pressure(surface pressure in 20ºC) |
Mpa |
0.04 |
0.04 |
|
Yearly gas leakage rate |
|
≤1% |
≤1% |
Main technical parameter of cable connector
|
Item |
Unit |
Parameter |
Parameter |
|
Rated voltage |
kV |
12 |
24 |
|
Rated current |
A |
630 and below |
630 and below |
|
Cross section of cable |
mm2 |
25~400 |
35~400 |
|
Resistance in connection point |
μΩ |
40 |
45 |
|
Partial discharge |
pC/kV |
≤10/13 |
≤10/21.5 |
|
Rated short time withstand current |
kA/s |
20/3 |
25/2 |
|
Rated peak withstand current |
kA |
50 |
63 |
|
1 min power frequency withstand voltage |
kV |
42 |
65 |
|
Lightning impulse withstand voltage |
kV |
75 |
125 |
3. Service condition for DFT6-40.5(12) KV Series Outdoor HV SF6 Cable Branch Box (Outdoor RMU)
A. Altitude ≤1000m (above sea level);
B. Ambient temperature: -25ºC~+40ºC;
C. Wind speed ≤34m/s
D. The spot should have no regularly exquisite shake.
