CJB20-1250 EN50181 11kV 12kV 15kV 24kV 25kV 1250A Dead Break Screened Separable Tee Connector with Mechanical Lug Three Core Copper Wire Screen STA

• Interface/Bushing: Type C (EN50181)
• Rated Voltage: 10kV, 20kV
• Rated Current: 1250A
• Cable Lug: Mechanical Type
• Material: Silicone Rubber
• Type Tested: Yes
• Model NO.: CJB20-1250
• Cable Shield Style: Copper Wire
• Armour: STA
• Number of Cores: 3
• Transport Package: Carton Box
• Trademark: GCA
• Origin: China
• HS Code: 8546900000
• Production Capacity: 1000000PCS/Year

Product Description

CJB20-1250-24kV 1250A Dead Break Screened Separable Front Tee Connector (Interface C2)
 

Interface C2 bushing (1250A)
CJB20-1250 and CJBK20-1250 are made of silicone rubber, suit for connecting with type C2 bushing as described by CENELEC EN 50180, 50181 and DIN 47636.
CJB20-1250
The screened separable tee connector CJB20-1250 is designed to connect the polymeric cable to transformers, switch gears and other equipment.
CJBK20-1250
The screened separable connector CJBK20-1250 is application for dual cable arrangement, designed to be used with CJB20-1250 screened separable tee connectors.


Features

• Rated current 1250A, for max. operating voltage up to 24kV.
• The thick outer screen layer provides a total safe to touch screen which ensures safety for personnel.
• The screen break design enables cable outer sheath testing without removing or dismantling the connector.
• Electrical specification according to standard of IEC 60502-4, CENELEC HD 629.1 S2. Each separable connector is tested for AC withstand and partial discharge prior to leaving the factory.
• The overall and cut back dimensions are designed for use of minimum space required in the termination box, even double connections fit within most standard boxes.
• Suitable for both indoor and outdoor installations. Both single-core or three-core (with installed trifurcation kit) are available
 

Design 

1. Type C2 bushing
2. Stud + nut + washers
3. Insulating back plug
4. Cable lug
5. Inner screen layer
6. Insulation layer
7. Outer screen layer
8. Stress cone
9. Earthing wire
10. Cable core
11. 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
Partial discharge	20kV, ≤10pC
Thundering impulse voltage withstand at 10 positive and 10 negative	125kV
AC voltage withstand	30kV, 15min
Fault current test	12kV, 10kA

Main components


Applicable connection