3M™ Cold Shrink QT-III Silicone Rubber Indoor Termination Kit With High-K Stress Relief For Tape Shielded, Wire Shielded and UniShield® Cable 7620-T-95 Instructions IEEE Std. No. 48 Class 1 Termination 5/8 kV Class 95 kV BIL F CAUTION Working around energized systems may cause serious injury or death. Installation should be performed by personnel familiar with good safety practice in handling electrical equipment. De-energize and ground all electrical systems before installing product.
1.0 Kit Contents 3 High–K, Tracking Resistant, Silicone Rubber Terminations 3 Preformed Ground Braids 3 Constant Force Springs 3 3M™ EMI Copper Foil Shielding Tape 1181 Strips, 1/2" x 10" 6 Strips Scotch® Mastic Strip 2230 (black with white release liners, bagged) 1 3M™ Cable Cleaning Preparation Kit CC–2 1 Instruction Sheet NOTE: Do Not use knives to open plastic bags. Kit Selection Table NOTE: Final Determination Factor is cable insulation diameter. Kit Number Primary Insulation O.D. Range Jacket O.
Instructions For Tape Shielded Cable 2.0 Prepare Cable 2.1 Check to be sure cable size fits within kit range as shown in Table 1. 2.2 Prepare cable using dimensions shown in Figure 1. Be sure to allow for depth of terminal lug. If necessary to prevent tape shield from unrolling, hold down edge with a single wrap of 3M™ EMI Copper Foil Shielding Tape 1181. NOTE: Provide additional 1/4" (6 mm) exposed conductor distance to account for growth during crimping of ALUMINUM lugs or connectors.
3.0 Install Ground Braid 3.1 Position pre-formed ground braid with short tail over tape shield directly adjacent to cable jacket cut edge. PLEASE NOTE: The ground braid needs to make full contact with the metallic tape shield. Position long tail of ground braid, extending over cable jacket with solder block over Scotch® Mastic Sealing Strip 2230 (Figure 2). Secure ground braid to cable jacket 3 1/2" (89 mm) from cable semi-con edge using vinyl tape (Figure 2).
3.4 Wrap two highly stretched half-lapped layers of electrical grade vinyl tape around Scotch® Mastic Strip 2230, constant force spring and exposed tape shield (Figure 4). NOTE: Take care not to cover exposed semi-con insulation shield. A minimum of 3/4" (19 mm) must be exposed.
.0 Install Termination 6.1 Slide the termination body onto the cable and remove core. Pull while unwinding, counter-clockwise, starting with the loose end (Figure 6). Make sure the termination body (not the core) is butted up to the edge of the vinyl tape marker previously applied (Figure 6). NOTE: Once the termination body makes contact over the mastic seal area, there is no need to continue supporting the assembly. DO NOT PUSH OR PULL ON THE TERMINATION ASSEMBLY WHILE UNWINDING THE CORE.
Instructions for Wire Shielded Cable 7.0 Prepare Cable 7.1 Check to be sure cable size fits within kit range as shown in Table 1. 7.2 Prepare cable using dimensions shown in Figure 7 and Figure 8. Be sure to allow for depth of terminal lug. NOTE: Provide additional 1/4" (6 mm) exposed conductor distance to account for growth during crimping of ALUMINUM lugs or connectors. NOTE: It is imperative to remove all remnants of the semi-con layer, even if the semi-con layer comes off as one layer.
.0 Install Ground Braid 8.1 Select a Scotch® Mastic Strip 2230 from kit and remove white release liners. Using light tension, apply a SINGLE WRAP of mastic around the cable jacket 1/4" (6 mm) from cut edge (Figure 9). Cut off excess. 1/4" (6 mm) Semi-Con 1ST Scotch® Mastic Sealing Strip 2230 Cable Jacket Figure 9 8.2 Position pre-formed ground braid with short tail over wire shield directly adjacent to cable jacket cut edge.
8.3 Wrap ground braid around cable shield wires one complete wrap, trim excess to prevent overlap and secure in place with constant force spring. Wrap spring in same direction as ground braid (Figure 11). Cinch (tighten) the spring after wrapping the final winding. 8.4 Select second Scotch® Mastic Sealing Strip 2230 from kit and remove white release liners. Apply a second SINGLE WRAP of mastic over solder block on ground braid and previously applied mastic (Figure 11). Cut off excess.
9.0 Install Lug or Connector 9.1 Check to insure the 3M™ Silicone Rubber Termination QT–III assembly fits over the selected lug or connector. If lug or connector (Figure 13) will not fit through the termination core, clean the insulation (per Step 10.0) and slide termination on cable before installing lug or connector. DO NOT REMOVE CORE AT THIS TIME. Clearance Connector/Lug Figure 13 NOTE: Refer to pages 17-19 for 3M™ Connector and Lug crimping information.
.0 Install Termination 11.1 Slide the termination body onto the cable and remove core. Pull while unwinding, counter-clockwise, starting with the loose end (Figure 14). Make sure the termination body (not the core) is butted up to the edge of the vinyl tape marker previously applied (Figure 14). NOTE: Once the termination body makes contact over the mastic seal area, there is no need to continue supporting the assembly. DO NOT PUSH OR PULL ON THE TERMINATION ASSEMBLY WHILE UNWINDING THE CORE.
Instructions for UniShield® Shielded Cable 12.0 Prepare Cable 12.1 Check to be sure cable size fits within kit range as shown in Table 1. 12.2 Prepare cable using dimensions shown in Figure 15. Be sure to allow for depth of terminal lug. NOTE: Provide additional 1/4" (6 mm) exposed conductor distance to account for growth during crimping of ALUMINUM lugs or connectors. 12.3 Install constant force spring as shown in Figure 15.
12.5 Remove semi-conductive jacket to dimension shown in Figure 17. NOTE: To ease jacket removal, install constant force spring as shown in Figure 17 and ring cut 80% through jacket. Remove jacket sections by pulling against constant force spring. DO NOT BELL SEMI-CON JACKET. Remove constant force spring. NOTE: It is imperative to remove all remnants of the semi-conductive jacket, even if the semi-conductive jacket comes off as one layer.
13.2 Position pre-formed ground braid with short tail directly over cut edge of folded back shield wires. Position long tail of ground braid, extending over cable semi-conductive jacket with solder block over mastic strip (Figure 19). Secure ground braid to cable semi-conductive jacket 3 1/2" (89 mm) from cable semi-con edge using vinyl tape (Figure 19). NOTE: Position vinyl tape with care, it also serves as a marker for positioning the termination.
13.5 Wrap two highly stretched half-lapped layers of electrical grade vinyl tape around mastic seal, constant force spring and exposed shield wires (Figure 21). NOTE: Take care not to cover exposed semi-con insulation shield. A minimum of 3/4" (19 mm) must be exposed. 1" (25 mm) Semi-Con Shield Wires Constant Force Spring Two Half-Lapped Layers of Electrical Grade Vinyl Tape Scotch® Mastic Sealing Strip 2230 Vinyl Tape Marker Figure 21 14.0 Install Lug or Connector 14.
.0 Install Termination 16.1 Slide the termination body onto the cable and remove core. Pull while unwinding, counter-clockwise, starting with the loose end (Figure 23). Make sure the termination body (not the core) is butted up to the edge of the vinyl tape marker previously applied (Figure 23). NOTE: Once the termination body makes contact over the mastic seal area, there is no need to continue supporting the assembly. DO NOT PUSH OR PULL ON THE TERMINATION ASSEMBLY WHILE UNWINDING THE CORE.
Tooling Index Lug and Crimping Information for 3M™ Scotchlok™ Copper Lugs 30014 thru 30045 One hole 31145 thru 31178 Two hole-long barrel 31036 thru 31068 One hole-long barrel Cable Size AWG/ kcmil Stud Size (in.) 3M™ Scotchlok™ Copper Lug Number 6 10 1/4 5/16 4 Crimping Tool-Die Sets (Minimum Number Of Crimps) Burndy Corporation Thomas & Betts Corporation Square D Co. Anderson Div.
Tooling Index Lug and Crimping Information for 3M™ Scotchlok™ Copper/Aluminum Lugs 40016 thru 40079 One hole 40132 thru 40178 Two hole Cable Size AWG/ kcmil Stud Size (in.
Tooling Index Crimping Information for 3M™ Stem Connectors Copper/Aluminum Conductor Size AWG & kcmil Stranded 2, 1 4 1/0 2/0 3/0 4/0 Solid 1, 1/0 2 2/0 3/0 4/0 – Crimping Table For 3M™ Stem Type Connector 3M™ Connector Number SC0001 SC0002 SC0010 SC0020 SC0030 SC0040 Recommended Crimping Tools Manufacturer Mech. Tool Die (Minimum No. Crimps) Hydraulic Die (Minimum No.
3M, Scotch and Scotchlok are trademarks of 3M Company. UniShield is a trademark of General Cable Technologies Corporation. Important Notice All statements, technical information, and recommendations related to 3M's products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use.
