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Thursday, June 23, 2016

Raychem Cold Shrink Termination (CST)

Raychem CST - Cold Shrink Termination


     Why is the Raychem CST better than some of the other competitive options in the marketplace? 

One advantage is that it has a large misplacement range. Typically, when a termination is misplaced, it is towards the lug end. We created our stress cone with a very large Faraday cage region to account for this. The customer has well over 1” of area they can land the semi-con cutback of the cable and still have effective stress control. We don’t advocate for sloppy workmanship but we do want to try and give the installers as much help as we can.

In addition, we developed a new EZ-Pull holdout which not only has a much lower overall pull force, but is very consistent in the force. This prevents the “jerking” that can happen with other holdouts. It is hard to put how much better the holdout feels into words since it is a very “touch” related thing. Installers are raving about this improved feature.

Other advantages: 
  • Our CST uses a geometric stress control with void-filling mastic rather than a different option
  • The CST indoor term also has mini-sheds that improve creepage distance, but still allow for installation in tight-fitting areas.  
  • Lower cost than the alternatives in the market.

     TE Connectivity's Raychem CST cold shrink terminations are the one piece solution for high performance in cold applied terminations for polymeric cables up to 28kV.  CST offers a reliable, fast and easy to install system to ensure trouble free service.  All components are pre-expanded  on an easy to remove spiral hold out allowing installation in compact environments on prepared cable.

     The silicone body is specially formulated for excellent tracking and erosion resistance.  The extra long stress cone aids in correct positioning and integrated void-filling mastic eliminates the need for silicon grease.  Sealing mastic for the lug end is built into the expanded termination eliminating the need for additional sealing tapes.  Shearbolt and compression style terminals and pin connectors are available to provide reliable connection to a variety of conductors. 

     CST components have full trace ability to raw materials and are in compliance with the following international standards:  IEEE-48, CENELEC HD 629.1.S2 (includes IEC, BS, VDE and other international specifications).