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CJB20-630 EN50181 11kV 12kV 15kV 24kV 25kV 630A Dead Break Screened Separable Tee Connector (Interface C) with Compression Lug (Front Tee)
CJB20-630 -24kV 630A Dead Break Screened Separable Front Tee Connector (Interface C1)
Interface C1 bushing (630A) CJB20-630 and CJBK20-630 are made of silicone rubber, suit for connecting with type C1 bushing as described by CENELEC EN 50180, 50181 and DIN 47636. CJB20-630 The screened separable tee connector CJB20-630 is designed to connect the polymeric cable to transformers, switchgears and other equipment. CJBK20-630 The screened separable connector CJBK20-630 is application for dual cable arrangement, designed to be used with CJB20-630 screened separable tee connectors.
Design
Type C1 bushing •Stud + nut + washers •Insulating back plug (with test point is available) •Cable lug (compression and mechenical type are available) •Inner screen layer •Insulation layer •Outer screen layer •Stress cone •arthing wire •Cable core •B type connecting rod
Selection guide
Kit reference (No.)
Suit for diameter over XLPE insulation (mm)
Suitable cable size (sq.mm)
Um=17.5kV Cable
Um=24kV Cable
CJB20-1250-1#, CJBK20-1250-1#
16.5-23
35, 50, 70, 95
25, 35, 50, 70
CJB20-1250-2#, CJBK20-1250-2#
23-28
120, 150, 185
95, 120, 150
CJB20-1250-3#, CJBK20-1250-3#
28-36
240, 300, 400
185, 240, 300
CJB20-1250-4#, CJBK20-1250-4#
36-40
500
400, 500
CJB20-1250-5#, CJBK20-1250-5#
40-45
630
630
Technical Data
Test Item
Test value
AC voltage withstand
54kV, 5min
AC voltage withstand
30kV, 15min
Partial discharge
20kV, ≤10pC
Heating cycles voltage test
30 cycles in air, 30 cycles under water at 95-100°C, 30kV
Thundering impulse voltage withstand
125kV at 10 positive and 10 negative
Screen resistance
Not exceed 5000Ω
Screen leakage current
Maximum 0.5mA at 24kV
Thermal short-circuit test
No visible deterioration at 37.3kA, 2s
Dynamic short-circuit test
No visible deterioration at 131.9kA, 10ms
Type test was performed in Guangdong Testing Institute of Product Quality Supervision (GQI), which is accredited in accordance with ISO/IEC
17025 General Requirements for the Competence of Testing and Calibration Laboratories. Type test reference standard: IEC60502-4:2005.
