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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
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| 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) |
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Tel: +86 0519 6822 9970
Tel: +86 139 6636 6339
Adress: 9 Yijing Road, Jintan District, Changzhou City, Jiangsu Province, China.
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