Tyco Termination TFTI and TFTO

Raychem push-on elastomeric medium voltage terminations for indoor and outdoor applications for single core polymeric cables up to 42 kV

Terminating for single core polymeric cables up to 42kV

cable terminationFeatures at a glance

  • High-performance termination material
  • New stress control system
  • Separate stress control patch
  • Separate mastic tapes for moisture sealing, specially designed for cold-applied applications
  • Compact design with integrated sheds
  • Application range
  • Easy application
  • Leakage current collector only for 36 kV and 42 kV

The material makes the difference

Key to the performance of Raychem pro d ucts is the materials science and technology going into their development. Our products have displayed excell ent perform ance in heat-shrink - able cable accessories up to 72 kV. The advantages of Raychem heat -shrink able terminations have a proven record of long-term stability, dura bility, and reliability over many years.

Raychem cable accessories have been used by utilities and industrial companies around the world for more than 30 years. This field experience has enabled us to be a leader in materials technology for high-voltage applications.

Our materials technology is at the core of the development of our new range of TFT Elastomeric Terminations.


  • No shelf life (push on version)
  • Less waste for disposal
  • Simple installation
  • Re-positioning after installation possible
  • Superior application ranges

Designed for both indoor and out door in all climate conditions, the TFT range covers applications on single core plastic cables up to 42 kV.

The TFT has been developed to complement Raychem’s termination product line. The TFT includes an elastomeric body material in contrast to the semi-crys talline polymeric body of the heat-shrink terminations. Both types of bodies consist of crosslinked poly mer networks and both types of terminations are easy to install over a range of cable sizes. Because the TFT bodies are rubbery at ambient temperatures, they are not "frozen" in an expanded state such as heatshrink able polymer bodies and can be installed without heat.

The TFT includes:

  • a non-tracking, silicone-based elastomeric body
  • a stress control patch
  • self amalgamating sealant tape

These components combine to provide the same important functions as heat-shrink products: electrical performance, stress control, and moisture sealing. Because of the inherent physical property differences between semi-crystalline and rubbery polymers, the TFT stress control and sealant materials are tailored to achieve optimum performance with an elastomeric system.

The proprietary materials used in Raychem cable accessories are subjected to a long period of optimisation with respect to product design and function, manufacturing and expected service environments.

We recognise that polymeric and elastomeric insulation materials are not generic and that extreme variations and differences can exist among base poly mer grades and additives.

Formulations consist not only of polymer but of additives and fillers which greatly influence the material's properties. It is the entire formulation package in com bination with compounding procedures, material processing, product design and assembly that all contribute to the over all product performance.

Insulation materials

The materials employed in TFT have simi larly undergone many years of development yielding an elastomeric product with excep tional electrical and weathering performance properties. The insulation material has been devel oped to maximize the inherent material hydro phobicity and thermalstability characteristics of silicone and, through formulation expertise, to deliver excellent erosion resistance, weatherability and dielectric proper ties.

Stress control materials

A new patch for electrical stress control has been developed with physical and electrical properties providing superior perform ance when combined with the TFT termination. We have formulated a superior new material which is included in the patch resulting in an outstanding impulse with stand performance of the TFT termination.

Sealant tapes to prevent moisture ingress

The products are fully tested in accordance with CENELEC specification HD629 which encompasses international standards such as IEC, British Standards and VDE.

Product range

The product line is designed for single core plastic cables up to 42 kV cables. This coverage is completed with a minimum number of designs. Pre-expanded versions are available.

The products are fully tested to CENELEC specification HD 629 and to IEEE Std.48-1996 which encompasses international standards such as IEC, British Standard (BS) and VDE.

For cable box applications TFT can be com bined with either Raychem bushing boot (RCAB) or Raychem insulated con nec tion system (RICS) to fit most types of switch gear currently available in today’s market place.

For pole top applications we can supply TFT along with polymeric insulators (EPBI), Polygarde surge arresters and most fittings required for installation.

Under regular circumstances, all of the TFT components have full traceability back to the origin of manufacture and raw materials.

Kit content

Each TFT product will generally consist of the termination body unexpanded or expanded, a stress control patch, sealant tapes, silicone grease, a small PE bag as assembly tool and installation instructions. For special applications contact your local sales representative. The right kit for your cable range can be selected with the help of the selection table.


Each kit contains an easy to follow installation instruction with excellent visual displays of the installation steps. Installation is both fast and simple.


Cable Services web link: Termination TFTI and TFTO

Data Sheet PDF: Tyco TFTI and TFTO Data Sheet

Cable Services Catalogue PDF: Termination TFTI and TFTO

Cable Termination Sales Enquiry

Cable Services are able to offer full technical support for the full product range of cable termination products.
Please contact one of our sales offices for product information and technical specifications.
Wrexham - Tel: 01978 340 450 - Email Enquiry
Stone - Tel: 01785 825 970 - Email Enquiry
Liverpool - Tel: 0151 933 9022 - Email Enquiry
Glasgow - Tel: 0141 621 2060 - Email Enquiry