Outdoor AC Cable Branch Box
Description & Application
DMC series cable junction cabinet is widely used in AC power transmission and distribution system, to distribution of electrical energy. The connection mode is simple, convenient, besides all the insulation, seal, corrosion resistance, easy extension, free maintenance etc.
Technical Parameter
|
Item
|
Data
|
| Rated Voltage |
11kV
|
|
Max. Working Voltage
|
15kV
|
| Rated Current |
630A
|
|
Rated Frequency
|
50Hz
|
|
Rated Thermal Stability Current
|
20kA/4s
|
|
Rated Dynamic Current(Peak)
|
50kA
|
|
Rated Breaking Current
|
630A
|
|
Rated On-off Current
|
50kA
|
|
Rated Cable Charging Breaking Current
|
30A
|
|
Rated Power Frequency Withstand Voltage
(Phase to Earth/Across Isolating Distance)
|
42kV/48kV
|
|
Rated Lightning Impulse Withstand Voltage
(Phase to Earth/Across Isolating Distance)
|
95kV/125kV
|
|
Joint Resistance
|
≤40μΩ
|
|
Working Temperature of Conductive Parts
|
≤95°C
|
|
Partial Discharging
|
≤10pC/13kV
|
| Humidity Test |
11kV/100h
|
|
Apply to Cable Type
|
XLPE
|
|
Apply to Cable Cross-Section
|
20-400mm2
|
|
Ambient Temperature
|
-40~+50°C
|
| Elevation |
≤3000m
|
|
630A Operation Times(Mechanical Life)
|
>100 times
|
|
Mechanical Operation of Switch On-Off(Load Break Switch/Disconnector/Earthing Switch)
|
5000/2000
|
Application Conditions
|
Item
|
Data
|
|
Ambient Temperature
|
|
|
Max. Temperature
|
40°C
|
|
Max. Average Daily Temperature
|
35°C
|
|
Min. Temperature
|
-40°C
|
|
Humidity
|
|
|
Max. Average Humidity
|
|
| 24hours |
≤95%
|
| 1month |
≤90%
|
|
SF6 Gas Pressure
|
1.4Bar with 20°C (Absolute Pressure)
|
|
Yearly Leakage Ratio
|
≤0.1%/Year
|
|
Cable Sleeve Standard
|
DIN47636T1
|
|
Protection Level
|
|
|
SF6 Gas Tank
|
IP67
|
| Fuse Bush |
IP67
|
|
Switch Cabinet Shell
|
IP44
|
|
Bus Bar
|
|
|
Bus Bar in Switch Cabinet
|
400mm²Cu
|
|
Earthing Bus Bar of Switch Cabinet
|
160mm²Cu
|
|
Thickness of Stainless Gas Shell
|
3.0mm
|
Transportation
During carriage & transportation, if necessary, fix the bottom bracket with nails. If transport by truck, should be fixed & carried by PE bottom bracket with plastic tape.
Feature & Advantages
1 Fully sealing, insulating and protection meet the outdoor all-weather operating condition;
2 Anti-flood, dirty and dew & frost, the stainless steel housing added electros praying;
3 Ring main unit type cable branch box can achieve ring power-supply for several users, having the performances of safety, reliability and economical efficiency.
4 It can reserve interface and configure related elements (CT, PT, electric and operating mechanism) for distribution network automation, reserving FTU interface and position;
5 Cold shrinking accessories can be selected for silicone rubber drop-in, with simple and reliable installation.
Standards
DL/T 402-2007
DL/T 404-2007
DL/T 486-2000
DL/T 593-2006
DL/T 593-2006
DL/T 728-2000
GB 1984-2003
GB 1985-2005
GB 3804-2004
GB 3906-2006
GB 4208-2008
GB 11032-2000
GB 16926-2009
GB 15166.2
GB 50150-2006
GB/T 11022-1999
GB/T12706.4-2002
JB/T 10840-2008
IEC 60502-4:1997
Service
Shipping
1 Sea Way
2 Air Way
3 Express
Payment
1 PayPal
2 West Union
3 Wire Transfer
4 T/T
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