33kV Cable Terminations – ABB SafePlus Switchgear Cable Connectors (BS7870/4.1 XLPE Cable)
Published 22 Feb 2018

- Application: 33kV cable terminations for ABB SafePlus switchgear
- Cable Type: BS7870/4.1 XLPE cable, 33kV
- Pictured By: Jony Brown, HV Regional Manager at SSE Enterprise Contracting
- Product Category: MV & HV Power Cable Terminations
33kV Cable Terminations for Medium Voltage Switchgear
Thorne & Derrick supply HV cable terminations and connectors for single-core and three-core power cables. Our range supports XLPE, EPR and PILC cable insulation up to 33kV.
We work with leading manufacturers to supply equipment for medium- and high-voltage applications. These include Nexans Euromold, 3M Cold Shrink and Pfisterer CONNEX.
These accessories connect power cables to electrical equipment. Typical applications include air-, oil- and gas-insulated switchgear, transformers and cable end-boxes. Selected products are also available from stock for UK and international projects.
33kV Cable Termination Components
Our 33kV cable terminations include components for different cable designs. The exact components depend on the cable construction and termination requirements.
Typical components include:
- Screen earth kits for copper-taped screen cables.
- Screen wire earth lugs for copper wire-screened cables.
- Cable glands in bolt-on, compression and heat shrink designs.
- Glands for armoured and non-armoured cables.
- Insulating bushing boots.
- 33kV crimp lugs and mechanical shearbolt cable lugs.
Outdoor 33kV Cable Terminations
Outdoor cable terminations connect 33kV power cables to medium- and high-voltage electrical equipment.
They also support overhead line distribution networks. For example, installers can use pole-top mounting brackets to connect cables to electrical equipment on overhead lines.
ABB SafePlus Switchgear and 33kV Cable Connections
ABB SafePlus is a compact, metal-enclosed switchgear system. It uses SF6 insulation and supports secondary medium-voltage distribution applications up to 33kV/36kV.
The system offers flexible installation options. Its extendable design supports both fully modular and semi-modular configurations.
Typical ABB SafePlus Applications
ABB SafePlus switchgear supports a wide range of secondary distribution applications. These include:
- Compact secondary substations (CSS).
- Light industrial facilities.
- Wind and solar farms.
- Commercial buildings.
- Power generation facilities.
- Mining operations.
- Airports and railway networks.
SafePlus Cable Termination Interfaces and Interface C Bushings
SafePlus medium-voltage switchgear uses outer-cone cable bushings. These comply with the CENELEC EN 50181 standard.
The system supports two connection interfaces:
- Interface B: 400 Series Plug-in.
- Interface C: 400 Series Bolted.
Several manufacturers offer compatible cable termination options. These include Nexans Euromold, Elastimold, Tyco Electronics, nkt-cables, Prysmian, Südkabel and ABB Kabeldon.
The photograph below shows a 33kV cable installation at a wind farm. The installation uses BS7870/4.1 specification XLPE power cable.
The cable connects to SF6 gas-insulated switchgear through Interface C type bushings. The installation also uses screened separable connectors.

BS7870 Cable Standards and Applications
BS7870 covers polymeric-insulated cables for electricity distribution and generation utilities. It includes both low-voltage and medium-voltage cable applications.
The standard covers several cable types, including:
- Concentric cables.
- Split-concentric cables.
- Power cables for fixed installations.
Its scope includes relevant cable applications up to and including 33kV.
Thorne & Derrick distribute HV cable terminations for 6.6kV, 11kV and 33kV power cables.
We also supply indoor and outdoor heat shrink terminations at competitive prices. In addition, our extensive stocks support UK and international customers.
Thorne & Derrick – MV and HV Cable Accessories
Need help selecting heat shrink cable terminations for 33kV high-voltage power cables? Thorne & Derrick can help you identify suitable products for your application.
We supply a wide range of MV and HV cable joints and terminations. Our product range also includes cable installation accessories and cable pulling equipment.
Our products support electrical infrastructure projects across the UK and internationally. These include underground cable installations, overhead lines and substation earthing.
We also support electrical construction projects across LV, 11kV, 33kV and EHV transmission and distribution networks.
Key Product Categories
Our product range covers a variety of cable installation and electrical infrastructure requirements.
- MV and HV cable joints and terminations.
- Cable cleats.
- Duct seals.
- Cable transits.
- Underground cable protection.
- Cable jointing tools.
- Feeder pillars.
- Cable ducting.
- Earth tapes.
- Electrical safety.
- Cable glands, arc flash protection and fusegear.
Leading Manufacturers and Distributors
We work with established manufacturers and suppliers across the electrical industry. Our distribution portfolio includes:
- 3M and ABB.
- Alroc, Band-It, Catu and Cembre.
- Centriforce and CMP.
- Elastimold, Ellis Patents, Emtelle and Furse.
- Lucy Zodion, Nexans Euromold and Pfisterer.
- Polypipe, Prysmian and Roxtec.

LV – Low Voltage Cable Joints, Glands, Cleats, Lugs & Accessories (1000 Volts)

MV HV – Medium & High Voltage Cable Joints, Terminations & Connectors (11kV 33kV EHV)

Cable Laying – Underground Cable Covers, Ducting, Seals & Cable Pulling Equipment
More from the Power Blog
Looking for more technical information about power distribution? Explore the Thorne & Derrick Power Blog for articles and updates covering LV, MV, HV and EHV transmission and distribution.
You can also find information about:
- Substation earthing.
- Electrical switchgear.
- Cable jointing and termination.
- Cable faults and repairs.
- Underground power cables.
Visit the Power Blog for more technical articles and industry updates.

Further Reading
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33kV MV Medium Voltage Switchgear – ABB SafePlus
Size: 1.33 MB
