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RODS WINDING TUBES COMPOSITE INSULATOR CABLE ACCESSORIES EPOXY
 
110kV cable accessories
66kV cable accessories
35kV cable accessories
10kV cable accessories
Link boxes
Round link boxes
Square link boxes
Ark link boxes
 
Link box series for high voltage cable metal jacket

The link box for cable metal jacket are special designed according to the cable various kinds of connection and grounding style, which prevent the cable outer insulation from impulseing, and affecting the unnormal operation of the cable line.

Characteristics of the link boxes :

stainless steel material for the outer face of link boxes and bolt joints. good corrosion resistance
shapes of round, square and ark are used selectively as per the various situation of installation
conductor connecting with stainless bolt , simple installation, convenient for remove and install
Surge arrester(sheath voltage limiter) was made of good porcelain or silicone rubber
Tinned conductor, make the reliable conducting performance.
Moisture proof C insulating supporter.

Main technical inspection of the link box series:
1 Normal condition required
a) environmental temperature: -4~40
b) height above sea lever should not over 1800 meter
c) could install in outdoor or cable channel
2 Main technical performance after departing from ground or connecting with the surge arrester.
a) DC withstand voltage: 20kV 1 min no breakdown
b) Impluse withstand voltage: 37.5kV (110kV cable) no breakdown
c)Main insulating part test of link box after installation:
insulating resistance(2.5kV):5M
10kV DC voltage withstand:1minno breakdown
3 Main electrical performance of inner surge arrester

Type

rated voltage kVr.m.s

DC 1mA reference voltagekV

8/20s 10kV impulse residual voltage kVpeak

AC voltage withstand

4/10s 10kV impulse huge current twice

Creepage distance mm

 

Voltage kVr.m.s

Time5s

KApeak

BHQ-2

110220

3.25

6.5

2.45

5

65

80

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