Shielded-cable terminations: insulation coordination, cable fit and service environment
A termination finishes a shielded power cable with controlled electrical stress, an external insulation system and the required sealing and conductor connection. Select the exact cable-compatible assembly with its service environment and qualification evidence, rather than by a voltage-class label alone.
Terminations for shielded medium- and high-voltage power cables, including premoulded, modular, cold-shrink and heat-shrink types for indoor and outdoor use. Separable connectors (elbows), straight joints, cable glands and the cables themselves are outside this page.
CNFX editorial research · Sources checked October 18, 2026 · 4 sources
Keep service voltage and qualification tests distinct
The Elastimold catalogue’s named 15 kV-class termination entries include 9.5 kV phase-to-ground and 110 kV BIL; its 25 kV-class entries include 16 kV phase-to-ground and 150 kV BIL. These are different rating quantities, not interchangeable labels for the applied system voltage. [1]
Its catalogue separately lists power-frequency withstand and corona-extinction values. A corona-extinction voltage in kV is not a partial-discharge charge limit in pC. Obtain the required test conditions and reports for the selected cable/termination combination and insulation-coordination requirement. [1]
The IEEE page for 48-2009 marks that edition superseded by 48-2020. It describes AC shielded-cable terminations and excludes separable insulated connectors, which fall under a different standard. The public scope is not the complete current test procedure or evidence that every catalogue rating was tested to the newer edition. [3]
02
Match the cable construction and the stated use environment
Elastimold’s PCT1/PCT2 information describes Class 1 outdoor service for those particular designs. In contrast, 3M’s September 2016 QT-III 7640-T/7650-T datasheet identifies its non-skirted tubular terminations as IEEE Class 1 for indoor and weather-protected applications. Class 1 wording alone does not establish outdoor suitability. [1][2]
The 3M kits identify JCN/CN cable constructions and compatible insulation materials, and each kit supplies one single-phase termination without a lug. The delivered quantity, cable construction and connector scope still need confirmation for the exact selected kit. [2]
Elastimold’s selection notes distinguish insulation-diameter range from the overall cable diameter accepted by a mounting bracket. The conductor cross-section, actual insulation diameter, shield/neutral construction and jacket diameter are different fit requirements. A nominal conductor size alone does not select every termination component. [1]
03
Identify which termination and associated parts are delivered
The cited catalogues distinguish pre-moulded and modular constructions from a cold-shrink assembly supplied on a removable core. They have their own compatible cables, connectors and installation documentation. A construction name does not establish interchangeability or approval for a different cable. [1][2]
Request the complete ordered assembly: termination body, stress-control and sealing parts, screen/earth arrangement, conductor connector and any required bracket. Identify any parts excluded from the kit and the qualified installation responsibility. [2][4]
04
Read the outdoor kit’s voltage, fit and temperature fields separately
Ensto’s COT1.2406 page specifies U0/U (Um) as 12.7/22 (24) kV and identifies an outdoor cold-shrink termination for polymeric-insulated, Cu-wire-screen cables with Al/Cu conductors. It lists the insulation diameter as 36.8–72 mm, separately from outer-sheath diameter 47–72 mm. Do not substitute one diameter field for the other. [4]
That product lists 630 mm creepage and temperature ranges of −25 to 50 °C for installation, −50 to 90 °C for operation and 5 to 40 °C for storage. These are the named product’s distinct conditions. Its page marks outdoor suitability and no indoor suitability; do not extrapolate a different family member’s application. [4]
No pollution class or substitute-kit suitability is calculated from creepage divided by an arbitrarily chosen voltage denominator. Use the supplier’s applicable insulation/pollution coordination and the correct rating convention for the project. [4]
05
Specify stress control, insulation and connections as one assembly
The Elastimold and 3M descriptions identify stress control at the shield end, external insulation and sealing as parts of the termination system. A conductor lug, bracket or insulating sleeve supplied alone is not the entire qualified cable-end assembly. [1][2]
Keep the screen/earth connection and connector requirements with the selected cable. Confirm the included parts and the manufacturer’s approved assembly instructions; catalogue compatibility does not validate an installation on a different cable construction. [2][4]
06
Submit the system and actual cable data together
State the system voltage/rating convention, earthing and insulation-coordination requirements, indoor/outdoor service and environmental conditions. Provide the cable drawing with insulation material and diameter, conductor size/material, shield/neutral and outer sheath, plus mounting and connection details. [1][4]
Require the exact kit identity, quantity/contents, qualification standard/edition and reports for the relevant tests. Keep service conditions, installation/storage conditions, physical fit and test ratings as separate acceptance fields. [2][3][4]
07
Send the system, cable and service data together
Paste it into your enquiry below or into an email to a maker, then replace every bracket.
1 company lists this product among what they make. Company figures are quoted from each
company's own website; every card states where the relationship came from.
PowerTel Solutions Limited
TBC
Official termination page lists cold-shrink, heat-shrink and high-voltage termination offerings with associated manufacturing arrangements. Confirm the actual legal manufacturer, exact kit, supplied parts and qualification evidence.
Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.
Share this page
Compiled and source-reviewed by the CNFX editorial team.
Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review
· Page last updated 13 October 2026
Buyer questions
Does IEEE Class 1 mean every termination is for outdoor use?
No. The cited 3M Class 1 tubular kits are specifically for indoor/weather-protected applications, while the Elastimold PCT designs state outdoor use. Check the exact product’s approved environment. [2][1]
Is corona-extinction voltage a partial-discharge limit in pC?
No. A voltage entry and a discharge-charge limit are different quantities. Request the actual qualification method, conditions and reports for the selected assembly. [1]
Can conductor size alone establish the kit fit?
No. Confirm insulation diameter and cable construction as well as conductor size, outer sheath and any bracket/connector requirements. [1][4]
Sources and evidence scope
Sources checked 2026-10-18. Original Elastimold and 3M documentation, Ensto’s named product data and IEEE’s explicitly superseded scope record. Service environment, cable fit and test quantities are kept distinct; no system-only arithmetic selects a termination.
