Common type 10kV cable branch box scheme (10kV cable branch box) explanation (European type box, European type cable branch box)
T-type Connecting European cable branch box has been widely used in cable engineering equipment in power distribution network system in recent years, its main feature is the two-way door, using insulating wall bushing as busbar connection, it has the obvious advantages of small length, clear arrangement of cables, and no need for large span crossing of three-core cables, generally use rated current 630A bolt fixed connected type cable joint, the cable joint used is in accordance with DIN47636 standard.
1.Full insulation, full sealing, full protection and full working conditions
2.Flexible incoming and outgoing lines, there are eight branches most incoming and outgoing lines in practical application.
3.Flood resistance, dirt resistance, condensation resistance, frost resistance, corrosion resistance.
4. Small size, compact structure, simple installation, easy operation
5. Zinc oxide arrester is available
6. Potential indicator can be installed to alert the operator that the line is live
7. Cable type fault indicator can be installed for quick detection of cable faults 8. There are a variety of box material to choose from, ordinary steel plate, coated aluminum zinc plate and mirror stainless steel.
|Maximum working voltage（kV）||12|
|Lightning impulse voltage（kV）||75|
|1min power frequency withstand voltage（kV）||42|
|Thermal stability current（2s）（kA）||20|
|Dynamic stable current（peak value）（kA）||50|
|Enclosure protection class||IP44|
|The use of ambient temperature||-30℃~50℃|
|Maximum daily mean temperature||Not more than 30℃|
|Maximum annual mean temperature||Not more than 20℃|
|Wind speed||Not more than 35m/s|
|Air relative humidity||Not more than 90%|
|The slope of the ground||Not more than 5°|
|The earthquake resistance ability||8 degrees|
|Dirt resistance grade||3degrees|
|Altitude||Not more than 2000m|
|No fire, explosion danger, chemical corrosion or violent vibration places.|
The ordinary cable branch box without switch can be installed with short-circuit fault indicator or lightning arrester at the inlet and outlet line according to users' requirements.
|DFW10-3||Three branches(one inlet and two outlets)||600||700||1100|
|DFW10-3A||Three branches(one inlet and two outlets)||900||700||1100|
|DFW10-4||Four branches(one inlet and three outlets)||900||700||1100|
|DFW10-4A||Four branches(one inlet and three outlets)||1000||700||1100|
|DFW10-5||Five branches(one inlet and four outlets)||1000||700||1100|
|DFW10-5A||Five branches(one inlet and four outlets)||1100||700||1100|
|DFW10-6||Six branches(one inlet and five outlets)||1100||700||1100|
1."A" indicates that an arrester is installed in the branch box
2. The dimension can be modified as required