26/35kV Heat Shrink Cable Accessories: Kits
Heat-shrink kits for 26/35kV cable terminations and intermediate joints: the top of the polyolefin heat-shrink accessory range we supply. Multi-layer polyolefin/silicone composite full sets, outdoor and indoor versions, service range -50℃~+125℃, referenced to IEC 60502. At this class the cable dimensions and the crew's preparation discipline decide the result; the checklist below covers both.
Specification
| Material | Polyolefin / Silicone rubber |
|---|---|
| Operating temperature | -50℃~+125℃ |
| Voltage class | 26/35KV |
| Wall type | Multi-layer composite |
| Standards | IEC 60502 |
| Kit types | Outdoor/indoor termination & intermediate joint, full set |
The 26/35kV context
This class sits where heat-shrink accessory design is most demanding on the accessory itself. Heavier wall builds hold thicker electrical gradients; outdoor terminations carry longer weather sheds because creepage distance along the insulating surface (not just wall thickness) is what limits surface tracking in wet, polluted air; and the jointing work itself has less tolerance for shortcuts. The kits are engineered for that duty as complete sets: stress-control components over the screen cut, the insulation rebuild, the weather shed, and the sealing sleeves, each sized to the next so the layered system recovers as one continuous construction.
Cable dimension checklist (measure before ordering)
Measure on the actual drum, with a caliper. The drum label is a nominal size, not an OD guarantee:
| # | Dimension | What it sizes |
|---|---|---|
| 1 | Insulation OD per core | Stress-control and insulating components |
| 2 | Conductor cross-section (mm²) | Connector range |
| 3 | Core count | Breakout / bundle-sized parts |
| 4 | Screen OD and structure | Screen-continuity components; armoured bonding parts if armoured |
| 5 | Sheath OD and material | Sealing sleeves and adhesive selection |
| 6 | Strip-back lengths per position drawing | Kit component order and lengths |
Kit component list (structure)
The full set follows the layered construction. Per position you receive the stress-control components for the screen cut, the insulating rebuild layers over the connector, the weather shed (outdoor) or indoor equivalent, and the sealing sleeves over the sheath, plus the phase-colored arrangement for multi-core positions. The itemized part list per kit size is issued with the quotation once your dimensions are in; we do not guess a kit from a voltage class alone.
Installation environment
Recovery is hot-air work, and at 26/35kV the environment is part of quality: a wind-sheltered, dust-controlled work area keeps contamination out of the insulation surface, and even heating keeps the wall from scorching or recovering loose. Outdoor terminations are installed with the shed orientation per the kit sheet; joints go into chambers, trenches or housings. Our cast-aluminum explosion-proof joint boxes are the mechanical enclosure option for buried or chambered positions.
System test context
The kit's 26/35kV marking is a component rating; the finished joint or termination is a system result that also reflects cable construction, workmanship and the finished-installation test. Before energizing, the completed installation is tested per the commissioning procedure the project specifies. The kits are referenced to IEC 60502; the per-kit type-test scope we can document is being verified and will be published with the dimension tables.
Frequently asked questions
What changes at 26/35kV compared with lower-voltage accessory kits?
Three things scale up. Wall builds get heavier because the insulation must hold a thicker gradient. Weather sheds on outdoor terminations get longer because creepage distance along the surface is the design dimension. And workmanship tolerance tightens: at 26/35kV a contamination point or an air pocket that an 8.7/15kV joint might tolerate becomes a partial-discharge site with real consequences. The kits are built for that class; the crew's preparation discipline has to match.
What cable dimensions should we measure before ordering a 26/35kV kit?
Insulation OD over each core, conductor cross-section, core count, screen OD and sheath OD, plus the strip-back lengths your position drawing calls for. The insulation OD is the sizing dimension for the stress-control and insulating components; the screen and sheath ODs size the continuity and sealing parts. Measure on the actual drum. The drum label nominal size is not a substitute.
Which kit components are included in the full set?
The full set covers one position end to end: stress-control components over the screen cut, the insulating rebuild layers, the outdoor weather shed or indoor equivalent, and the sealing sleeves over the sheath. Termination and intermediate joint sets are different part lists. The itemized contents per kit size are confirmed when we quote: send the cable dimensions and we return the exact list.
Where can these kits be installed?
Outdoor and indoor versions are both in the range. Outdoor terminations handle UV and rain shedding; joints are installed in chambers, trenches or direct-buried housings such as our explosion-proof joint boxes. Recovery needs a hot-air gun and a wind-sheltered work area, at this class, overheating or uneven heating of a shed or insulating layer is a defect, so the work area matters.
Is this kit compliant with IEC 60502?
The kits are referenced to IEC 60502. Component compliance is one input. The completed 26/35kV joint or termination is a system result that also depends on the cable construction, workmanship and the finished-installation testing your project applies. Voltage-performance claims for the finished system belong to that test, not to the kit datasheet. Batch certificates are issued per shipment.
How should we plan testing of the finished installation?
Follow the commissioning procedure your project or utility specifies for the 26/35kV circuit: typically a DC or VLF withstand test on the completed installation before energizing, per the local practice. We supply the component kits and their batch certificates; the finished-system test result is what qualifies the installation. Plan the test window in the same schedule as the jointing crew.
Request a quote for 26/35KV Heat Shrinkable Power Cable Accessories
Send the six-dimension checklist per cable type plus the position counts (termination/joint, indoor/outdoor) and quantity. We return the kit part numbers, itemized contents and lead time.
Certifications & Compliance
26/35KV Heat Shrinkable Power Cable Accessories is referenced to the following standards and directives. Certificates are supplied per batch on request.
Tell us your target market (EU / US / Asia) and we align the documentation to your filing.
View our verified UL / SGS / RoHS certificates →
Size range & specification notes
Complete outdoor/indoor termination and intermediate joint sets for 26/35kV cable. Per-kit OD coverage and component dimensions are published after verification: see the DATA_REQUIRED notes above.