China DFW-12 (35kV) High Voltage Cable Branch Box - Suppliers & Factory for Fully Insulated Solutions
Model meaning
Environmental conditions of use
-
The altitude shall not exceed 1000 meters.
-
Operating ambient temperature: -30°C ~ 40°C.
-
Relative humidity ≤ 95%.
-
The ambient air should not be significantly polluted by flammable gas, but can be polluted by smoke dust and corrosive gas, and the pollution level should not exceed class III in GB/T5582.
-
No frequent severe vibration.
Main technical parameter
| Item name | Unit | Argument | Remark |
|---|---|---|---|
Rated voltage |
kV |
12 |
It can be equipped with load switch, circuit breaker, fuse, etc., and the technical parameters are shown in the instructions of the accessory |
Rated frequency |
Hz |
50 |
|
Rated current |
A |
630 |
|
1min power frequency withstand voltage |
kV |
42 |
|
Lightning impulse withstand voltage |
kV |
75 |
|
Protection level |
|
IP54 |
|
Outline dimension (L×W×H) |
mm |
650×1150×880 ~ 1300×1500×1200 |
|
European type cable branch box structure diagram
If the cable branch box cannot be placed due to site limitation, it can be directly combined with cable joint to form multiple cable branches (without the need for busbar, the connection method is shown in the following example) and placed in the cable trench or its location.
Each phase consists of two European type front joints and two European type rear joints, with one European type connected to butt sleeve in the middle. The end of the European type rear joint is sealed with insulator and semiconductive end cap.
Each phase consists of three European type front joints and two European type rear joints, connected by European type butt sleeve in the middle. The end of the European type rear joint is sealed with insulator and semiconductive end cap.
European type cable branch box structure diagram
European type cable branch (connection) box structure diagram
Ordering information (box configuration solution)
| Specification and model | Wiring solution | Internal arrangement | Outline dimension (mm) |
|---|---|---|---|
| DFW10-2 |  |
 |
580×550×950 |
| DFW10-3 |  |
 |
700×550×950 |
| DFW10-4 |  |
 |
820×550×950 |
| DFW10-5 |  |
 |
940×550×950 |
| DFW10-6 |  |
 |
1060×550×950 |
| DFW10-7 |  |
 |
1180×550×950 |
| DFW10-8 |  |
 |
820×650×1000 |
| DFW10-9 |  |
 |
940×650×1000 |
Cable plug installation diagram
European type cable branch box foundation diagram
Frequently Asked Questions (FAQ)
What are the environmental limits for installing this cable branch box?
The European type cable branch box is designed for altitudes below 1000 meters, operating temperatures between -30°C and 40°C, and a maximum relative humidity of 95%. It should not be exposed to frequent severe vibrations or pollution levels exceeding Class III in GB/T5582.
What are the key technical parameters of the cable branch box?
It features a rated voltage of 12kV, a rated frequency of 50Hz, and a rated current of 630A. It possesses a 1-minute power frequency withstand voltage of 42kV, a lightning impulse withstand voltage of 75kV, and holds an IP54 protection rating.
Can this cable branch box be equipped with custom accessories?
Yes, the box can be equipped with load switches, circuit breakers, fuses, and other accessories. The technical specifications for these components can be referenced in the accessory manuals.
How do you install the cable branch box when space is limited?
If space is limited, the box can be combined directly with cable joints to form multiple cable branches without using a busbar. This assembly can then be placed directly inside a cable trench.
What configurations are available for ordering the DFW10 series?
Models range from DFW10-2 to DFW10-9, offering different wiring solutions, internal arrangements, and outline dimensions ranging from 580×550×950 mm to 940×650×1000 mm to suit various project requirements.