220kV Integral premolded shield break connection/straight joint

Product Descriptions

● The main insulation of the product is an integral premolded constructure. The high-voltage shield, sleeve and insulating parts are injected into one piece. The constructure is simple and easy to be installed.

● The outer shielding layer of the main insulator is injected with semi-conductive silicone rubber to avoid the shortcoming that the sprayed surface is easy to damage.

● The housing adopts high-strength copper protection case with high mechanical strength and good sealing performance.

● The main insulation of the product is an integral premolded constructure. The high-voltage shield, sleeve and insulating parts are injected into one piece. The constructure is simple and easy to be installed.

● The outer shielding layer of the main insulator is injected with semi-conductive silicone rubber to avoid the shortcoming that the sprayed surface is easy to damage.

● The housing adopts high-strength copper protection case with high mechanical strength and good sealing performance.

Product introduction: 220kV integral prefabricated intermediate joint product introduction.pdf

Structure diagram: 220kV integral prefabricated insulation joint structure diagram.pdf

Structure diagram: 220kV integral prefabricated straight-through joint structure diagram.pdf

Product introduction: 220kV integral prefabricated intermediate joint product introduction.pdf

Structure diagram: 220kV integral prefabricated insulation joint structure diagram.pdf

Structure diagram: 220kV integral prefabricated straight-through joint structure diagram.pdf

Previous: 66~110kV Integral premolded shield break connection/straight joint

Next: No more data

Contact Us

Technical Specifications
Area Of Application
Applicable cable cross-sections:	240~2500 mm²
Max.system voltage:	252 kV
System rated frequency:	50 Hz
Elevation:	≤2000 m
Operation temperature:	-55 ℃~45 ℃
Cable Shield Style	Tape/wire/corrugated Al
Design Data
Max.exteral dimensions(diameter × length)	∅420 × 2250 mm
Weight(excluding cable)	180 kg / 396.83 lbs
Anticorrosive coating	Heat shrink tubing
Protective measures	Three options：heat shrink tubing, protective copper shell and FRP shell
System of a laying joints	Tunnel
Storage temperature	0 ℃~35 ℃
Electrical Test
Electrical Type Test(IEC 62067)
Heating cycle voltage	254 kV
Partial discharge test at ambient and elevated temperatures	No detctable discharge exceeding the declared sensitivity(191 kV, 3.8pC)
Lighting impulse voltage	±1050 kV
Electrical Routine Test(IEC 62067)
AC withstand voltage (wet,1 min)	460 kV
Partial discharge test	No detctable discharge exceeding the declared sensitivity (191 kV, 3.8pC)

Technical Specifications
Area Of Application
Applicable cable cross-sections:	240~2500 mm²
Max.system voltage:	252 kV
System rated frequency:	50 Hz
Elevation:	≤2000 m
Operation temperature:	-55 ℃~45 ℃
Cable Shield Style	Tape/wire/corrugated Al
Design Data
Max.exteral dimensions(diameter × length)	∅420 × 2250 mm
Weight(excluding cable)	180 kg / 396.83 lbs
Anticorrosive coating	Heat shrink tubing
Protective measures	Three options：heat shrink tubing, protective copper shell and FRP shell
System of a laying joints	Tunnel
Storage temperature	0 ℃~35 ℃
Electrical Test
Electrical Type Test(IEC 62067)
Heating cycle voltage	254 kV
Partial discharge test at ambient and elevated temperatures	No detctable discharge exceeding the declared sensitivity(191 kV, 3.8pC)
Lighting impulse voltage	±1050 kV
Electrical Routine Test(IEC 62067)
AC withstand voltage (wet,1 min)	460 kV
Partial discharge test	No detctable discharge exceeding the declared sensitivity (191 kV, 3.8pC)

Product Recommendation

66~110kV Integral premolded shield break connection/straight joint-

66~110kV Integral premolded shield break connection/straight joint

It is designed for intermediate connection of 66~110kV cables and to operate under severe environmental conditions, both in-line or shield break. Reference to IEC 60840-2011.