33kV Single Core XLPE Copper Wire Screen Cold Shrink Cable Joints – 3M QSIII 94-AC64x-1/C
33kV Single Core XLPE Copper Wire Screen Cold Shrink Cable Joints – 3M QSIII 94-AC64x-1/C
Cold Shrink Single Core Inline Joint with Cold Shrink Re-jacketing
94-AC64x-1/C Series with Mechanical Connectors
Thorne & Derrick are Specialist Distributors for the 3M Electrical range of Cold Shrink cable joints suitable for jointing, connecting and splicing 33kV cables.
Cold Shrink joints do not require “hot-working” techniques associated with heat shrink cable joints – specified for use in potentially explosive atmospheres including hazardous area locations with flammable gas environments in the onshore and offshore oil, gas and petrochemical industries.
For the connection of MV HV cables in electrical equipment such as substation switchgear and transformers a complete range of 11kV/33kV Cold Shrink terminations are available for single and 3 core medium/high voltage cables.
3M QSIII Cold Shrink Series Kits are designed for inline cable jointing up to 36kV Umax voltage class – single core polymeric power cable systems with copper wire screen according to HD 620 (IEC 60502). The range is part of the 3M Premium Cold Shrink Cable Joints product offering.
33kV Cold Shrink Cable Joints are able to ensure quick, easy and safe installation of the QSIII Splice Body due to 3M’s Cold Shrink technology and do not require special tools – by unwinding the plastic support core in a counter clockwise direction the 3M cable joint body can be installed.
3M 33kV cable joints are easily identifiable and are marked with the supplier name, cable cross section ranges, voltage class and cable type. These cold shrink joints have a shelf life of up to 3 years from the manufacturing date when stored between -40ºC and +50ºC.
3M QSIII 94-AC64x-1/C
33kV Single Core XLPE Copper Wire Screen – Features
- The versatile design of the prefabricated one-piece cold shrink splice body allows installation on a wide range of cable sizes and types and a fast and easy installation at temperatures ranging from – 20°C to + 50°C
- No heat or flame is needed during splice body installation
- Mechanical connector provides quick and easy connection, with no special tooling
- Solderless earth connection by means of Copper Stocking and Constant Force springs
- Thick walled, EPDM rubber Cold Shrink outer re-jacketing tubes provide mechanical protection and moisture sealing of the completed Inline joints
- No special tools are needed during splice installation
3M QSIII Cold Shrink Series – Kit Contents
3M QSIII 94-AC64x-1/C Inline Joint Series includes the Cold Shrink QSIII silicone splice body
- Integrated stress control device
- Conductive electrode
- Silicone elastomer insulation
- Outer semi-conductive layer
- Copper screen sleeve
- Constant Force springs
- Thick walled EPDM rubber cold shrink tubes to re-build the cable outer jacket
- Armour and/or lead sheath connection components are also included where appropriate
3M Cold Shrink joints should only ever be installed by Competent 33kV Jointers using the correct cable jointers tools.
1. Cold shrink tubes are positioned onto the 33kV power cable to provide outer sheath protection and re-jacketing of the 33kV cable sheath
2. The cable conductors are jointed using either 33kV crimp connectors or mechanical shearbolt type, such as Pfisterer Sicon
3. The 33kV cold shrink joint body with integrated stress control provides a high voltage cable joint for 33kV XLPE/EPR cables
4. Once the HV Jointer has installed the cold shrink protection tube the 33kV cable joint is completed and can be energised immediately
33kV Joints
Watch the following 3M installation video which provides full instruction for using 3M QSIII cold shrink joints to joint 33kV cables.
3M QSIII 94-AC64x-1/C – Application Range
| 3M 33kV Cable Joint Part Number | 33kV Cable Type | Dia. over Cable jacket max.(mm) | Dia. over Primary Insulation (mm) | Cross Section (mm²) 18/30(36)kV & 19/33(36)kV |
| 94-AC640-1/C | Copper Wire Screen | 80 | 31.5 – 52.6 | 300 – 630 |
| 94-AC643-1/C | Copper Wire Screen, plus External Earth | 80 | 31.5 – 52.6 | 300 – 630 |
| 94-AC642-1/C | Copper Tape Screen, Armour, and/or Lead Sheath. Also joining above to CWS | 80 | 31.5 – 52.6 | 300 – 630 |
The Simple Application Of A 3M Cold Shrink Cable Joint 33kV
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| 1. Park the 3M Cold Shrink cable joint body onto the prepared cable, connect the cores and clean thoroughly using cable cleaning wipes. | 2. Thoroughly grease the connected cable in preparation for the cable joint body. | 3. Once in position, begin to remove the inner coil from the cold shrink joint body. | 4. For extra peace of mind, take advantage of the fact that the cable joint body position is easily checked. |
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| 5. Place the earth stocking over the joint body. Ground and secure with 3M Constant Force Springs. | 6. Insulate the constant force springs with Scotch 23 Rubber Splicing Tape and then overlay with Scotch Rubber Mastic Tape 2228. | 7. Position the pre-parked 3M Cold Shrink Outer Protection Tube over the stocking and begin to remove the inner supporting core. | 8. Continue to remove the inner core until the outer cold shrink tube is fully shrink, completing the cable joint. |
CABLE JOINT PERFORMANCE TESTS
The 3M QSIII Cold Shrink Single Core Inline/Straight Cable Joint Series meets and exceeds the requirements of the European standard CENELEC HD 629.1. Test Report: 3M Italia S.p.A. Report No. I0594-0E dated December 14, 2007.
INSTALLATION
The 3M Cold Shrink technology ensures quick, easy and safe installation of the QSIII Splice Joint Body and outer protection tubes by pulling and unwinding the plastic support core in counter clockwise direction. The use of special tools is not necessary. Detailed instructions for installing the 3M QSIII Series Inline Joints are included in each Cold Shrink joint kit.
3M PRODUCT IDENTIFICATION
The 3M 33kV Cold Shrink Cable Joint kit is marked with supplier name, cable cross section ranges, voltage classes and cable type, storage conditions and manufacturing codes for product traceability.
COLD SHRINK STORAGE CONDITIONS
The shelf life of the 3M QSIII Series Inline Cold Shrink Joints is specified as 3 years.
Temperature: -40°C to +50°C (short term peaks at 60°C max.).
Also: 3M Cold Shrink Cable Terminations for medium and high voltage 11kV 33kV 66kV cable terminating.
➡ Should you require customer service or technical support on the selection or specification of LV MV HV Cable Accessories please contact us – view the full range of 3M Premium Cold Shrink Cable Joints below.
♦ For LV Low Voltage Cables | Cold Shrink Cable Abandonment | Cold Shrink Tubes
3M Cold Shrink
Thorne & Derrick International | MV HV Joints, Terminations & Cable Connectors
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