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TE’s Raychem MVLC are designed to insulate existing bare lines without costly conductor replacement expenditures or additional line hardware. The MVLC covers can be applied selectively on problem spans when temperatures are above 0°C. The MVLC covers material formulation are based on TE’s Raychem products’ field-proven experience with medium voltage products in harsh environments. The MVLC materials are UV stable as well as tracking and erosion resistant. The MVLC are cross-linked material to create an extremely robust insulation system, ensuring many years of reliable operation in the harshest environments. TE has designed a special tool that ensures fast and reliable application of the MVLC on energized lines. It attaches directly to the overhead conductor and remains stationary in a single location on each span. The tool may be manually or automatically operated, using a hand crank or with the aid of a gasoline powered drill. The tool forms, closes and feeds the MVLC along the conductor with speed and consistency.  


  • Three sizes cover conductors from 16 - 800 mm²
  • Based on 30+ years of field proven experience with high voltage products in harsh environments
  • UV stable as well as tracking and erosion resistant
  • Electronically crosslinked to create an extremely robust Insulation system ensuring long reliable operation in harsh environment
  • A mastic sealed version of this product is available for 25 kV/36 kV
  • REACH and RoHS Complaint
  1. How to Install TE's Raychem Medium Voltage Line Cover (English)

Watch our video to learn more about how to install our Medium Voltage Line Cover (MVLC)


Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Material System  HDPE/Co-Poly

  • Technology  Cold Applied

  • Product Type  Line Cover

Configuration Features

  • Visual Inspection  No

Electrical Characteristics

  • Voltage Class (kV) ≤ 15, ≤ 25

Body Features

  • Color  Red


  • Conductor Range (mm²) 0 – 99, 185 – 800, 99 – 185

  • Conductor Diameter (mm) 0 – 14, 13 – 18, 17 – 38

Usage Conditions

  • Operating Temperature Range (°C) -20 – 50


  • Halogen Free  Yes

  • Equipment  Conductors/Leads

  • Application Type  Overhead, Substation

Product Availability

  • Product Availability  Americas, ANZPAC, Asia, China, EMEA

Related Materials

Datasheets & Catalog Pages

Terms and Conditions

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This information has been provided to your free of charge for your use but remains the sole property of TE Connectivity Corporation (''TE'') or SnapEDA,  Inc. or Ultra Librarian/EMA Design Automation, Inc. (collectively, "Company"). While Company has used reasonable efforts to ensure its accuracy, Company does not guarantee that it is error-free, not makes any other representation, warranty, or guarantee that the information is completely accurate or up-to-date. In many cases, the CAD data has been simplified to remove proprietary detail while maintaining critical interface geometric detail for use by customers. Company expressly disclaims all implied warranties regarding this information, including but not limited to any implied warranties or merchantability or fitness for a particular purpose.