Disconnectable Joints
The Richards Disconnectable Joint system is a multi-way medium voltage splicing system available through 35kV. Commonly found in higher load density underground systems, these Joints can be useful even for lighter loads due to their versatility and simplicity. Other methods involve complicated installations that are extremely difficult in congested underground distribution environments.
The JSCS Series Cold Shrink Sleeve is a major breakthrough in Disconnectable Joint technology. This 3-in-1 range-taking design significantly eases installation and eliminates the need for a Cable Adapter, Jacket Seal, Retaining Ring and Vent Rod. The JSCS Series is molded from Richards’ Cold Shrink EPDM formula which is manufactured by our rubber production division. Equipped with a rugged, oil-resistant EPDM exterior, the Cold Shrink Sleeve is built to last in the toughest environments.
Available in 15/25/28kV and 35kV, the JSCS is 100% compatible with existing Disconnectable Joint interfaces and was designed and validated against the following industry standards:
- IEEE Std. 386: For Separable Insulated Connector Systems
- IEEE Std. 404: Extruded and Laminated Dielectric Shielded Cable Joints
- IEEE Std. 592: For Exposed Semiconducting Shields
| IEEE 386 – Minimum Product Ratings | |||
|---|---|---|---|
| Voltage Ratings | |||
| Voltage Class, Phase-to-Phase | 15kV | 25kV | 35kV |
| Maximum Operating Voltage – (phase-to-ground) | 8.3kV | 15.2kV | 21.1kV |
| Corona Voltage Level – (partial discharge extinction voltage) | 11kV | 19kV | 26kV |
| AC Withstand – (1 minute) | 34kV | 40kV | 50kV |
| Impulse-Withstand Voltage – (BIL) | 95kV | 125kV | 150kV |
| Continuous Current Ratings | |
|---|---|
| Aluminum | 600A |
| Copper | 900A |
| Short-Time Current Ratings | |
|---|---|
| Aluminum | 25kA, 10c. and 10kA, 3s. |
| Copper | 40kA, 10c. and 10kA, 3s. |
1. Eliminates Cable Adapter, Retaining Ring, Vent Rod, and Separate Jacket Seal Kit
2. 100% EPDM Composition
3. Mechanically Tough Bonded Jacket
4. Short, Non-Spiral Hold-Out Core
5. Range-Taking
6. Integral Jacket Seal
7. Fully Shielded and Submersible
| Resource | Details |
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Catalogs & Product Guides The Richards Disconnectable Joint system is a multi-way medium voltage splicing system available through 35kV. Commonly found in higher load density underground systems, these Joints can be useful even for lighter loads due to their versatility and simplicity. Other methods […] |
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Product Data Sheets 15/25kV 600/900A Disconnectable Joint Sleeve |
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Product Data Sheets 15/25/28kV 600A E Joint Bus |
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Product Data Sheets 15/25/28kV 600/900A H Joint Bus |
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Product Data Sheets 15/25/28kV 600/900A H9 Joint Bus |
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Product Data Sheets 15/25/28kV 600/900A I Joint Bus |
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Product Data Sheets 15/25/28kV 600/900A U Joint Bus |
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Product Data Sheets 15/25/28kV 600/900A Y Joint Bus |
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Product Data Sheets 35kV 600A E Joint Bus |
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Product Data Sheets 35kV 600/900A H Joint Bus |
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Product Data Sheets 35kV 600/900A I Joint Bus |
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Product Data Sheets 35kV 600/900A L Joint Bus |
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Product Data Sheets 35kV 600/900A U Joint Bus |
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Product Data Sheets 35kV 600/900A Y Joint Bus |
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Product Data Sheets 15/25/28/35kV Deadbreak Spiking Stem |
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Product Data Sheets 15/25kV Joint Insulating Cap |
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Product Data Sheets “E” and “I” Style Sleeve Restraints |
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Product Data Sheets Barrier Bolt |
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Instruction Sheets 15/25/28kV 600/900A JSCS Series | Cold Shrink Disconnectable Joint Installation Instructions |
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Instruction Sheets 15/25/35kV JS Series | Disconnectable Joint Installation Instructions |
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Catalogs & Product Guides Download a copy of our Medium Voltage Product Catalog for technical details and ordering information. If you don’t find what you are looking for, don’t hesitate to contact our team at the factory. |