Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co.,Ltd
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12 / 24KV Outdoor Ring Main Unit Cable Branch Box / Distribution Metering Box
General
DFT6-12/24 Series Cable Branch Box is a new power supply equipment that is designed for coordinating 12/24kV power network cable system for power acceptance and distribution. The series cable branch box has unique structure and beautiful appearance, it especially is suitable for the place that covers small build-up area and has higher requirement in environment such as city street, residence area, high-rise, airport and wharf, etc.
It is used in connecting, shunting, branching, continuing and transferring cable circuit outdoor.
Add wooden board of the case enclosure according to the customer's request.
Service condition
1. Altitude ≤1000m - above sea level
2. Ambient temperature:-25ºC~+40ºC
3. Wind speed:≤34m/s
4. No regularly exquisite shake
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, dust and waterproof.
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.
| FN26-12/24 Main Technical Parameter of SF6 Load Switch | |||
| 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-time Making Current | kA/S | 50/2 | 63/2 |
| 1min Power Frequency Withstand Voltage | kV | 42 | 65 |
| Lighting Impulse Withstand Voltage | kV | 75 | 125 |
| Mechanical Endurance | Times | 10000 | 10000 |
| SF6 Gas Pressure (20℃ gauge pressure) | Mpa | 0.04 | 0.04 |
| Leakage Rate/Year | ≤1% | ≤1% | |
| Main Technical Parameter of Cable Terminal | |||
| Item | Unit | Parameter | Parameter |
| Rated Voltage | kV | 12 | 24 |
| Rated Current | A | ≤630 | ≤630 |
| Apply To Cable Cross Section | 25-400 | 35-400 | |
| Connection Point Resistance | µΩ | 40 | 45 |
| Partial Discharge | Pc/kv | ≤10/13 | ≤10/21.5 |
| Rated Thermal Stability Voltage | kA/s | 20/3 | 25/2 |
| Rated Dynamic Voltage | kA | 50 | 63 |
| 1min Power Frequency Withstand Voltage | kV | 42 | 65 |
| Lightning Impulse | kV | 75 | 125 |
| Commonly used cable conductive cross-sectional area |
| 35,50,70,95,120,150,185,240,300,400 ,etc. |