HV Cable Terminations – 33kV Single Core Indoor | Outdoor Terminations | 3M Cold Shrink
3M Cold Shrink Single Core
Indoor/Outdoor HV Cable Terminations
94-EP Series for 19/33(36) kV Cables | 3M QTIII Terminations | 33kV
Thorne & Derrick are Specialist Distributors for the 3M Electrical range of Cold Shrink terminations for indoor or outdoor connection of medium/high voltage cables to 33kV substation electrical equipment including switchgear, transformers, air insulated cable box and junction/terminal boxes.
3M Cold Shrink Terminations are available to suit 33kV single core MV-HV cables with polymeric insulation (XLPE EPR) in both indoor and outdoor locations.
3M 94-EP Series Terminations include the Cold Shrink QTIII Silicone Termination body with integrated stress control device, silicone elastomeric insulation and built in moisture sealing mastic layer.
3M™ QTIII Cold Shrink Series Kits are designed for 36kV Umax voltage class, single core polymeric power cable systems according to HD 620 (IEC 60502).
- Versatile design – Prefabricated one-piece cold shrink termination body allows installation on a wide range of cable sizes and types
- Cable termination provide stable and reliable performance at -20ºC to +50ºC
- No heat or flame required during termination installation. Safe for hazardous areas (ATEX Directive Zone 1 & Zone 2)
- Solderless earth connection using 3M Constant Force springs for copper wire screen cables
- No special jointing tools or heat-shrink gas torches needed during installation
Cold Shrink Terminations | Stocked by Thorne & Derrick
Cold Shrink Termination Features & Benefits
- Tight Cable Sealing – termination retains resiliency and pressure even after prolonged aging and pollution exposure in outdoor locations
- Flexible Cold Shrink – accommodates all power cable manufacturers bend radius tolerances and recommendations
- Reliability – high dry and wet insulation resistance for both indoor and outdoor termination of MV HV power cables
- Outdoor Cable Terminations – excellent resistance to ozone and ultra-violet radiation
- Versatile – Cold Shrink cable terminations install quickly and accommodates a wide range of cable sizes
- Dependable – proven long-term reliability and safe operation at overload temperature on MV HV power system networks
- Time Efficient – reduced installation time for the Jointer compared to heat shrink, electrical taping or resins
Power Cable Terminations for MV HV Electrical Systems Utilising 3M Cold Shrink
3M COLD SHRINK
QTIII TECHNICAL SPECIFICATION
19/33 (36) KV CABLES TERMINATION
3M QTIII 33kV single core outdoor terminations are specified for up to 36kV voltages and single core polymeric power cable systems with copper wire screen according to HD 620 (IEC 60502).
Kits include a 3M QTIII silicone cable termination body with integrated stress control device and silicone elastomeric insulation.
Additionally, 3M silicone tape is included for moisture sealing and skirts are integrated for easier & faster installation.
3M QTIII 33kV single core outdoor terminations are quick, easy and safe to install and do not require special tools – by pulling and unwinding the plastic support core in a counter clockwise direction the 3M termination body can be installed.
3M 33kV cable terminations are easily identifiable and are marked with the supplier name, cable cross section ranges, voltage class and cable type. These cold shrink terminations have a shelf life of up to 3 years from the manufacturing date when stored between -40ºC and +50ºC.
Each 3M Cold Shrink cable termination is suitable for a range of conductor cross-sectional areas depending on the cable maximum voltage – 3M 94-EP terminations are suitable for 33kV cables and power systems.
33kV Termination Single Core XLPE 3M Cold Shrink
Copper Wire Screened Cables
This selection tables overviews the standard range of QT111 Terminations manufactured by 3M Electrical for polymeric insulated, copper wire screened cables – variants to cater for copper tape screened (CTS) cables with SWA (Steel Wire Armour), AWA (Aluminium Wire Armour) and lead sheath single or 3-core cables are available up to 33kV.
| 3M Cable Termination Part Number | Cable Type | Application Range Guide (sqmm) | Diameter over primary insulation (mm) | Max. Lug diameter accepted (mm) |
| 94-EP610-2 | Copper Wire Screen | 25 – 120 (crimp) 50 – 120 (mech) | 18.3 – 32.8 | 33 |
| 94-EP620-2 | Copper Wire Screen | 70 – 240 | 21.1 – 38.9 | 39 |
| 94-EP630-2 | Copper Wire Screen | 95 – 400 (crimp) 185 – 400 (mech) | 26.7 – 45.7 | 45 |
| 94-EP640-2 | Copper Wire Screen | 400 – 630 | 38.9 – 58.9 | 59 |
COLD SHRINK TERMINATIONS
3M QTII V. 3M QTIII
The following tables and videos demonstrate the specification differences and features of both the 3M QTII and 3M QTIII versions of Cold Shrink cable termination.
| 3M QTIII Premium Cold Shrink Cable Terminations | 3M QTII Standard Cold Shrink Cable Terminations |
| Fully Integrated Cable Termination | Partially Integrated Cable Termination |
| Moisture Blocking Mastic (1.) | |
| Integrated into cable termination | Applied separately |
| Outer Insulation (2.) | |
| Very good track resistance | Good track resistance |
| Stress Control Tube (3.) | |
| Integrated into cable termination | Integrated into cable termination |
| Silicone Grease-Stress Relief (4.) | |
| No – Integrated mastic is sufficient | Yes – Applied separately |
| Stress Control Mastic (5.) | |
| Integrated into cold shrink termination | No – Requires silicone grease |
3M QTIII COLD SHRINK CABLE TERMINATIONS
Premium Cable Terminations | 3M Quick Term III – Fully Integrated
3M QTIII Premium cable termination offers the greatest simplicity and flexibility in the full range as it covers a wide range of cable types and sizes. One of the main features that differentiates the QTIII from the rest is a shorter adjustable tail to enable it to fit into the wide range of boxes meaning fewer installation steps so there is less room for jointer error.
➡ WATCH & LEARN Video Demonstration of QTIII Cold Shrink Terminations:
3M QTII COLD SHRINK CABLE TERMINATIONS
Standard Cable Terminations | 3M Quick Term II – Partially Integrated
3M QTII requires additional installation steps to the Premium range explained in the video below. However the Standard QTII range still offers additional benefits over heat shrink cable terminations which have many more parts to install and require heat and further tools.
➡ WATCH & LEARN Video Demonstration of QTII Cold Shrink Terminations:
Cable Termination INSTALLATION
3M cold shrink technology ensures quick, easy and safe installation of the QTIII Termination Body by pulling and unwinding the plastic support core in counter clockwise direction. Use of special tools is not necessary. Detailed instructions for installing the 3M QTIII Series Terminations are included in each kit.
3M QTIII PRODUCT IDENTIFICATION
3M QTIII Series Cold Shrink Termination kits are marked with supplier name, cable cross section ranges (sqmm), voltage class and cable type, storage conditions and 3M manufacturing codes for product traceability.
TERMINATION PERFORMANCE TESTS
3M™ QTIII 94-EP Series Terminations meet and exceed the requirements of the European standard CENELEC HD 629.1 as well as IEC 60502-4.
See Independent Test Report No. I0445-0E
COLD SHRINK STORAGE
The shelf life of 3M 94-EP Cold Shrink terminations is specified as 3 years. Temperature: – 40°C to +50°C.
MV HV High Voltage Cable Joints | Cable Terminations | Cable Connectors | Distributed from Stock | UK & Export Sales
Thorne & Derrick specify and supply from extensive stocks market-leading brands in Cold Shrink, heat-shrink, silicone and EPDM rubber technology to support the energisation of High Voltage Power Cable Systems, 11kV, 24kV, 33kV, 66kV.
Approved Stockists & Distributors | 3M Electrical (Cold Shrink) | Nexans (Euromold JTS MONO) | Pfisterer (CONNEX SEANEX) | 11kV 33kV 66kV Medium & High Voltage Cable Accessories
3M QTIII 94EP 33kV Single Core Terminations – Data SheetDownload
