# Single-core cable sealing end

Canonical URL: https://eloragrid.ai/symbols/iec-single-core-cable-sealing-end
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: SE
Drawing use: SLD, Schematic
Reference families: IEC

## Symbol convention

Convention: IEC
Form: Single-core sealing end
Independent IEC-context illustration; not certified IEC geometry.

The termination at the end of a single-core cable where it is sealed and connected to an overhead line or equipment.

## In plain English

### What does Single-core cable sealing end mean?

A sealing end terminates a cable by controlling the electric stress at the screen cut-back, sealing out moisture and providing a connection to the conductor. The single-core form appears at each phase of medium and high voltage single-core cable circuits, typically at the cable to overhead line transition or at outdoor switchyard equipment.

### A simple example

The symbol does not show whether the termination is indoor or outdoor, heat-shrink, cold-shrink or porcelain, nor how the cable screen is bonded. Screen bonding at sealing ends, for example solid bonding or single-point bonding with sheath voltage limiters, must be drawn separately.

### What the drawings help you do

Check the screen bonding arrangement at each sealing end. Look for surge arresters fitted beside outdoor sealing ends. A sealing end terminates a cable; a straight-through joint connects two cable lengths together.

### This particular reference

The termination at the end of a single-core cable where it is sealed and connected to an overhead line or equipment. A sealing end terminates a cable; a straight-through joint connects two cable lengths together.

### Terms

- Phase: One of the related AC waveforms in a power system.
- Terminal: An identified point where a conductor connects.
- Rating: A value stating the conditions for which equipment is specified.

Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference
A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.

- [Elastimold underground cable accessories](https://www.abb.com/global/en/areas/electrification/medium-voltage/cable-accessories-connectors/underground/elastimold/underground)
- [IEC-60617 symbol preview directory](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7871E6EF-24D5-467E-9B74-321FEDC9DFDA.htm)


## What it represents

A sealing end terminates a cable by controlling the electric stress at the screen cut-back, sealing out moisture and providing a connection to the conductor. The single-core form appears at each phase of medium and high voltage single-core cable circuits, typically at the cable to overhead line transition or at outdoor switchyard equipment.
The symbol does not show whether the termination is indoor or outdoor, heat-shrink, cold-shrink or porcelain, nor how the cable screen is bonded. Screen bonding at sealing ends, for example solid bonding or single-point bonding with sheath voltage limiters, must be drawn separately.

## How to read it

- Check the screen bonding arrangement at each sealing end.
- Look for surge arresters fitted beside outdoor sealing ends.

## Information to show or reference

- State termination type and voltage class.
- Show screen bonding at the termination.
- Identify the equipment or line the sealing end connects to.

## Important distinction

A sealing end terminates a cable; a straight-through joint connects two cable lengths together.

## Facts

- Graphic cue: Triangular or cone-shaped termination at the cable end
- Does not show: Indoor or outdoor type and screen bonding
- Preview: Original educational illustration; consult the publisher and applicable standard for the exact graphic

## Public references

- [Elastimold underground cable accessories](https://www.abb.com/global/en/areas/electrification/medium-voltage/cable-accessories-connectors/underground/elastimold/underground) — ABB. Manufacturer context for cable terminations and accessories.
- [IEC-60617 symbol preview directory](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7871E6EF-24D5-467E-9B74-321FEDC9DFDA.htm) — Autodesk. Public directory of IEC-oriented symbol families.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.