Molly Ayala
Electrical service termination kits are used for cable termination at distribution voltage. They are used to make physical and electrical connections between the cable and the terminal of the equipment, junction, or another cable. Termination kits are available for heat-shrink, cold-shrink, and pre-moulded push-on cable terminations. Heat-shrink cable terminations, for example, use components or tubing that shrinks when exposed to heat. Cold-shrink terminations do not require heat, and the technician simply removes the supporting cord during installation. Termination kits are available from various manufacturers, including Marshall E. Campbell Co., Compaq International, Thorne & Derrick, and Underground Electric Supply. These kits are designed for different voltage ranges and cable types, ensuring a pliable and tight seal for effective cable termination.
| Characteristics | Values |
|---|---|
| Use | Cable termination at distribution voltage |
| Types | Heat-shrink, cold-shrink, push-on, slip-over, pre-moulded push-on |
| Voltage | 5 kV-35 kV |
| Companies | Marshall E. Campbell Co, 3M, Raychem, Thorne & Derrick, Eaton, TE Connectivity, Elastimold |
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What You'll Learn
Cable termination kits
Marshall E. Campbell Co offers termination kits in partnership with 3M and Raychem. Their kits include the Medium Voltage Heat-Shrinkable Motor Connection Stub Type Kit, for single conductors, and the Medium Voltage Heat-Shrinkable Motor Connection In-Line Type Kit, also for single conductors. They also offer the Cold Shrink QT-III Termination Kit, which provides a tight seal for tape shield, wire shield, and UniShield power cables, allowing the termination to withstand voltages of 5 to 35kV.
Underground Electric Supply offers a range of medium-voltage termination kits from brands like 3M, TE Connectivity, Raychem, and Elastimold. Their kits include the 3M Cold Shrink QT-II Silicone Rubber Termination Kits 5620K Series, which contain one-piece, non-skirted, silicone rubber terminations, and the TE Connectivity 15-35kV Cold Shrink Terminations Outdoor (CSTI), which are a one-piece solution for high performance in cold-applied terminations.
There are three main types of cable terminations: heat-shrink type, cold-shrink type, and pre-moulded push-on type. Heat-shrink terminations involve shrinkable components or tubing when exposed to heat. Cold-shrink terminations do not require heat, and the technician simply removes the supporting cord during installation, causing the components or tube to shrink and fit into place.
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Heat-shrink, cold-shrink, and push-on cable accessories
An electrical service termination kit is used for cable termination at distribution voltage. Heat-shrink, cold-shrink, and push-on cable accessories are used for jointing, terminating, and connecting cables to oil, air, or gas-insulated switchgear, transformers, motors, and overhead lines distributing electricity at medium/high voltages.
Heat-shrink cable terminations use components or tubing that shrinks when exposed to heat. Cold-shrink terminations do not require heat, instead relying on the removal of a supporting cord during installation, which causes the components to shrink and fit into place. Cold-shrink components are usually made from soft, flexible materials such as silicone rubber and EPDM. They are supplied in an expanded form on a rigid former or 'hold-out', which is removed during installation.
Push-on cable accessories require careful installation, including checking that the part is correctly sized for the cable diameter and only using the specified lubricant. Some accessories comprise a mix of heat-shrink, cold-shrink, and push-on components, and it is important to follow the recommendations for each technology. For example, some utilities prefer joints that include a pourable resin, which provides additional mechanical protection and moisture sealing.
Thorne & Derrick International are specialist distributors of LV, MV, and HV cable jointing and electrical equipment. They stock a range of heat-shrink and cold-shrink cable accessories suitable for medium/high voltage power cable accessory requirements. Marshall E. Campbell Co. also offers termination kits in partnership with 3M & Raychem, including heat-shrinkable motor connection stub type kits.
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Single-conductor termination kits
Electrical termination is the practice of ending a transmission line with a device that matches the characteristic impedance of the line. Termination prevents signals from reflecting off the end of the transmission line, which can cause interference and power loss. Cable terminations facilitate the flow of electricity by creating physical and electrical connections between the cable and the terminal of the equipment, junction, or another cable.
Termination kits are widely used for cable termination at distribution voltage. Marshall E. Campbell Co., for example, offers single-conductor termination kits in partnership with 3M and Raychem. These kits are used for terminating medium-voltage cables and include heat-shrinkable motor connection stub-type kits, which are designed for single conductors with a voltage rating of 5/8.7 kV and a current capacity of 300 MCM to 1000 MCM.
Another example is the Cobalt Series Single-conductor Cable Termination Kit by BlueTrailEngineering, which is rated for higher currents, capable of handling 100 amps in water and 65 amps in air. To assemble the male version of this kit, a specific tool, the Cobalt Series Single-conductor Male Cable Termination Tool, is required.
Underground Electric Supply also offers a range of medium-voltage termination kits from brands like 3M, Raychem, Elastimold, and TE Connectivity. These kits include cold shrink terminations, heat-shrink terminations, and insulating components for voltages ranging from 5 kV to 35 kV.
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Medium-voltage termination kits
Electrical termination is the practice of ending a transmission line with a device that matches the characteristic impedance of the line. Termination prevents signals from reflecting off the end of the transmission line, which can cause interference and power loss. Cable terminations make physical and electrical connections between the cable and the terminal of the equipment, junction, or another cable, facilitating the flow of electricity.
There are various types of cable terminations, including heat-shrink, cold-shrink, and pre-moulded push-on types. Heat-shrink cable terminations involve components or tubing that shrinks when exposed to heat. Cold-shrink terminations do not require heat, and the technician simply removes the supporting cord during installation, allowing the components or tube to shrink and fit into place.
- 3M Cold Shrink QT-II 5620K Series Silicone Rubber Termination Kits: These kits contain one-piece, non-skirted, silicone rubber terminations that can handle voltages from 5 kV to 35 kV.
- TE Connectivity Raychem Tool Free Termination (TFT-E): These are elastomeric medium-voltage terminations for 15 kV, 25 kV, and 35 kV single-core polymeric cables.
- 3M Cold Shrink QT-III Indoor Concentric Neutral Single Conductor Cable Termination Kit: This kit is suitable for terminating medium-voltage power cables that are jacketed or unjacketed.
- Hubbell BURNDY® HYSEAL Medium Voltage Cold Shrink Termination Kits: These kits feature an all-in-one design and offer streamlined installation, requiring no special tools. The cold shrink sleeves provide superior water repellency, UV stability, and resistance to tracking and erosion.
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Termination kit shipping
Marshall E. Campbell Company, for instance, provides standard shipping options like UPS, next day or second-day air freight, and even pickup services from their manufacturer's warehouse. They also cater to bulk items, although additional charges may apply for shipping outside their trading area. Lead times can often be improved by direct shipping from the manufacturer, depending on their terms and conditions.
Underground Electric Supply is another prominent company offering overnight, emergency shipping of medium voltage termination kits across the continental United States. Their range includes kits from brands like 3M, TE Connectivity, Raychem, and Elastimold.
Thorne & Derrick also cater to international customers, providing competitive prices, customer service, and worldwide delivery for their heat shrink termination kits. Their stock includes jointing and termination kits for XLPE, PILC, and EPR cables, ensuring a wide range of options for customers.
It is worth noting that termination kit shipping may vary based on the manufacturer, distributor relationships, and the size of the order. Companies often strive to provide efficient delivery, understanding the value of timely procurement in project management.
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Frequently asked questions
Termination kits are widely used for cable termination at distribution voltage. They are used to make physical and electrical connections between the cable and the terminal of the equipment, junction, or another cable.
There are heat-shrink, cold-shrink, and pre-moulded push-on types of termination kits. Heat-shrink types use heat to shrink the tubing, while cold-shrink types do not require heat and involve the technician removing the supporting cord during installation.
Examples include the 3M™ Cold Shrink QT-II 5620K Series Silicone Rubber Indoor Termination Kit, the 3M™ Cold Shrink QT II 5630K Series Termination Kit, and the TE Connectivity Raychem Class 1A CST cold shrink terminations.
Electrical service termination kits can be purchased from various companies such as Marshall E. Campbell Company, Underground Electric Supply, and Compaq International.
