Cable Heating Blankets & Jackets | MV HV Cable Straightening 66kV 132kV


66kV 132kV Cable Heating Jacket
Cable Heating Blankets for MV HV Cables
Heatfast TD-HVJ-P
Cable Heating Jackets for HV Cables
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Cable Heating Blankets & Jackets | MV HV Cable Straightening 66kV 132kV

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Product Code: TD-HVJP-1 / TD-HVJP-2

0-120°C
110VAC
33-132kV+

Cable Heating Blankets & Jackets from Thorne & Derrick provide controlled electric surface heating to the cable outersheath and XLPE insulation of MV HV power cables prior to the installation of joints, terminations & connectors. Designed for cable straightening and pre-installation heat treatment, the jackets help relieve locked-in mechanical stresses and reduce the cable’s tendency to recoil during preparation.

Suitable for 33kV, 66kV, 132kV and EHV cable installations, the cable heating jacket is wrapped around the cable and secured using adjustable side tethers. Used in conjunction with 2 metre aluminium cable straightening rails, the cable heating blanket provides durable heating performance for onshore and offshore cable installations.

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Cable Heating Jacket & Cable Heating Blanket for MV HV Cable Straightening

Thorne & Derrick’s Cable Heating Blankets & Jackets are used to provide electric surface heating to the cable outersheath and XLPE insulation of medium voltage and high voltage power cables prior to the installation of joints, terminations and connectors. This controlled heating process is used to support MV HV cable straightening before connection work starts.

Cable Heating Jacket for 33kV 66kV 132kV & EHV Cable Installations

The cable heating jacket is wrapped around the cable and secured with side release buckles and adjustable tethers to place the heater into direct contact with the cable outer sheath. The jackets are used in conjunction with 2 metre aluminium cable straightening rails to retain and support the cable while heat is applied. This makes them suitable for 33kV, 66kV, 132kV and extra high voltage cable installations.

Cable Heating Blanket for Onshore & Offshore Cable Installations

Manufactured from high quality protective materials, the cable heating blanket provides durable heating performance for both onshore and offshore cable installations. The main purpose is to relieve the mechanical stresses locked into the cable insulation, reducing the cable’s inclination to recoil and allowing easier physical cable manipulation and straightening by the HV jointer before termination or jointing work.

Need the right cable heating blankets and MV HV joints, terminations & connectors for your installation project? Thorne & Derrick are stockists and suppliers of specialist equipment for cable straightening, cable preparation and high voltage connection work.

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Cable Heating Jacket – Technical Specifications

Cable Heating Blanket & Jacket – Range Overview

Product Range TD-HVJP Cable Heating Jackets
Voltage Application Suits MV HV power cable straightening and pre-installation heating
Typical Cable Uses 33kV, 66kV, 132kV and EHV cable applications
Power Supply Voltage 110VAC
Control Electronic Thermostat With LED
Thermostat Range 0-120°C
Fastenings Side Release Buckles With Adjustable Tethers
Carry Case Rigid Injection Moulded Peli Case
  • Used to provide electric surface heating to the cable outersheath and XLPE insulation before jointing and termination.
  • Designed for use with aluminium cable straightening rails to support cable conditioning and straightening.
  • Suitable for offshore and onshore cable installation environments.

Cable Heating Jacket Models

Specification TD-HVJP-1 TD-HVJP-2
Cable Diameters 60-89mm 90-120mm
Jacket Flat Dimensions 400(w) x 1200(l) 500(w) x 2000(l)
Heating Power 220W 325W
Supply Voltage 110VAC 110VAC
Control (EL-CON) Electronic Thermostat With LED Electronic Thermostat With LED
Thermostat Range 0-120°C 0-120°C
Fastenings Side Release Buckles With Adjustable Tethers Side Release Buckles With Adjustable Tethers
Carry Case Rigid Injection Moulded Peli Case Rigid Injection Moulded Peli Case
  • TD-HVJP-1 is the small version for cable diameters 60-89mm.
  • TD-HVJP-2 is the large version for cable diameters 90-120mm.

Installation & Cable Straightening Notes

Heating Method Electric surface heating applied directly around the cable
Application Heats cable outersheath and XLPE insulation prior to connection work
Positioning Wrapped around the cable and secured with adjustable side tethers
Straightening Support Used with 2 metre length aluminium cable straightening rails
Primary Purpose Relieves locked-in stress and helps straighten HV cables prior to connection

For effective cable straightening, select the cable heating jacket according to the cable diameter and installation requirement, then use the jacket with suitable straightening rails and the correct jointing procedure. Controlled heating helps reduce recoil and supports easier cable positioning before installation of joints and terminations.


Cable Heating Blanket & Cable Heating Jacket – Key Benefits

✔ Provides controlled electric surface heating for MV HV cable straightening

✔ Helps relieve mechanical stresses locked into cable insulation

✔ Reduces the tendency of the cable to recoil during preparation

✔ Supports easier physical cable manipulation by HV jointers

✔ Adjustable electronic thermostat with LED and temperature range up to 120°C

✔ Suitable for onshore and offshore cable installations

✔ Supplied with side release buckles and adjustable tethers for secure fitting

✔ Used with aluminium cable straightening rails for controlled cable support

✔ Available in two jacket sizes to suit 60-120mm cable diameters

✔ Supplied in a rigid injection moulded Peli Case for protection and transport


Applications

✔ Straightening MV HV power cables prior to installing joints, terminations and connectors

✔ Heat treatment of cable outersheath and XLPE insulation before connection work

✔ Cable preparation for 33kV, 66kV, 132kV and EHV cable projects

✔ Onshore and offshore cable trench, substation and tower installation environments

✔ Cable straightening and conditioning for utility, renewable energy and power infrastructure sectors

✔ Used with 2 metre aluminium straightening rails to support cable positioning

✔ Preparation of cables before installation of MV HV cable joints, terminations & connectors

✔ Specialist cable installation works where durable and consistent heating is required


Cable Heating Jacket – Notes & Selection

The cable heating jacket provides a practical solution where a heat treatment process needs to be applied to each cable core to relieve the mechanical stresses locked into the cable insulation. This helps eliminate the behaviour inclination of the cable to recoil and allows easier physical cable manipulation and straightening by the HV jointer prior to installing joints, terminations and connectors.

Selection is based primarily on cable diameter and the required heated length. TD-HVJP-1 suits cable diameters from 60-89mm, while TD-HVJP-2 suits cable diameters from 90-120mm. For best results, the cable heating blanket should be used with suitable straightening rails and the correct cable jointing or termination procedure for the voltage class and installation environment.

TD-HVJP-1: suits cable diameters 60-89mm

TD-HVJP-2: suits cable diameters 90-120mm

110VAC supply: practical for controlled site heating setups

Heating power: 220W or 325W depending on jacket size

Related process: oil drum heating jackets are also used for EHV cable termination installations

Rigid Peli Case: protects the cable heating blanket during storage and transport

Data Sheets