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Table of contents for the manual
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Page 1
3M ™ Cold Shrink QT -III Silicone Rubber Indoor T er mination Kit With High-K Stress Relief For T ape Shielded, Wire Shielded and UniShield ® Cable 7620-T -95 Instructions IEEE Std. No. 48 Class 1 T ermination 5/8 kV Class 95 kV BIL F CAUTION W orking around energized systems may cause serious injury or death. Installation should be performed by[...]
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Page 2
2 78-81 13-5098-8 Rev F 1.0 Kit Contents 3 High–K, T racking Resistant, Silicone Rubber T erminations 3 Preformed Ground Braids 3 Constant Force Springs 3 3M ™ EMI Copper Foil Shielding T ape 1 181 Strips, 1/2" x 10" 6 Strips Scotch ® Mastic Strip 2230 (black with white release liners, bagged) 1 3M ™ Cable Cleaning Preparation Kit [...]
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Page 3
78-81 13-5098-8 Rev F 3 Instructions For T ape Shielded Cable 2.0 Prepare Cable 2.1 Check to be sure cable size fits within kit range as shown in T able 1 . 2.2 Prepare cable using dimensions shown in Figur e 1 . BE SUR E TO A LLO W FOR D EPTH OF T ER MI NAL LUG . If necessary to prevent tape shield from unrolling, hold down edge with a single wrap[...]
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Page 4
4 78-81 13-5098-8 Rev F 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 ® Ma[...]
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Page 5
78-81 13-5098-8 Rev F 5 3.4 W rap two highly stretched half-lapped layers of electrical grade vinyl tape around Scotch ® Mastic Strip 2230, constant force spring and exposed tape shield ( Figur e 4 ). NOTE: T ake care not to cover exposed semi-con insulation shield. A minimum of 3/4" (19 mm) must be exposed. SPECIAL NOTE FOR CLOTH OR P APER S[...]
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Page 6
6 78-81 13-5098-8 Rev F 6.0 Install T er mination 6.1 Slide the termination body onto the cable and remove core. Pull while unwinding, counter-clockwise, starting with the loose end ( Figur e 6 ). Make sure the termination body (not the core) is butted up to the edge of the vinyl tape marker previously applied ( Figur e 6 ). NOTE: Once the terminat[...]
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Page 7
78-81 13-5098-8 Rev F 7 Instructions for Wire Shielded Cable 7.0 Prepare Cable 7.1 Check to be sure cable size fits within kit range as shown in T able 1 . 7.2 Prepare cable using dimensions shown in Figur e 7 and Figur e 8 . BE SURE TO ALLOW FOR DEPTH OF TERMINAL LUG. NOTE: Provide additional 1/4" (6 mm) exposed conductor distance to account [...]
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Page 8
8 78-81 13-5098-8 Rev F 8.0 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 ( Figur e 9 ). Cut off excess. Semi-Con 1 ST Scotch ® Mastic Sealing Strip 2230 Cable Jacket 1/4" (6 mm) F[...]
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Page 9
78-81 13-5098-8 Rev F 9 8.3 W rap ground braid around cable shield wires one complete wrap, trim excess to prevent overlap and secure in place with constant force spring. W rap spring in same direction as ground braid ( Figur e 1 1 ). Cinch (tighten) the spring after wrapping the final winding. 8.4 Select second Scotch ® Mastic Sealing Strip 2230 [...]
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Page 10
10 78-81 13-5098-8 Rev F 9.0 Install Lug or Connector 9.1 Check to insure the 3M ™ Silicone Rubber T ermination QT–III assembly fits over the selected lug or connector . If lug or connector ( Figur e 13 ) will not fit through the termination core, clean the insulation ( per Step 10.0 ) and slide termination on cable before installing lug or con[...]
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Page 11
78-81 13-5098-8 Rev F 11 11.0 Install T er mination 1 1.1 Slide the termination body onto the cable and remove core. Pull while unwinding, counter -clockwise, starting with the loose end ( Figur e 14 ). Make sure the termination body (not the core) is butted up to the edge of the vinyl tape marker previously applied ( Figur e 14 ). NOTE: Once the t[...]
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Page 12
12 78-81 13-5098-8 Rev F Instructions for UniShield ® Shielded Cable 12.0 Prepare Cable 12.1 Check to be sure cable size fits within kit range as shown in T able 1 . 12.2 Prepare cable using dimensions shown in Figur e 15 . BE SUR E TO A LLO W FOR D EPTH OF T ER MI NAL LUG . NOTE: Provide additional 1/4" (6 mm) exposed conductor distance to a[...]
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Page 13
78-81 13-5098-8 Rev F 13 12.5 Remove semi-conductive jacket to dimension shown in Figur e 17 . NOTE: T o 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 im[...]
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Page 14
14 78-81 13-5098-8 Rev F 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 ( Figur e 19 ). Secure ground braid to cable semi-conductive jacket 3 1/2" (89 mm) from cable semi[...]
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Page 15
78-81 13-5098-8 Rev F 15 13.5 W rap two highly stretched half-lapped layers of electrical grade vinyl tape around mastic seal, constant force spring and exposed shield wires ( Figur e 21 ). NOTE: T ake care not to cover exposed semi-con insulation shield. A minimum of 3/4" (19 mm) must be exposed. Semi-Con Constant Force Spring T wo Half-Lappe[...]
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Page 16
16 78-81 13-5098-8 Rev F 16.0 Install T er mination 16.1 Slide the termination body onto the cable and remove core. Pull while unwinding, counter-clockwise, starting with the loose end ( Figur e 23 ). Make sure the termination body (not the core) is butted up to the edge of the vinyl tape marker previously applied ( Figur e 23 ). NOTE: Once the ter[...]
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Page 17
78-81 13-5098-8 Rev F 17 T ooling Index Lug and Crimping Information for 3M ™ Scotchlok ™ Copper Lugs 30014 thru 30045 One hole 31036 thru 31068 One hole-long barrel Cable Size AWG/ kcmil Stud Size (in.) 3M ™ Scotchlok ™ Copper Lug Number Crimping T ool-Die Sets (Minimum Number Of Crimps) Burndy Corporation Thomas & Betts Corporation Sq[...]
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Page 18
18 78-81 13-5098-8 Rev F T ooling Index Lug and Crimping Information for 3M ™ Scotchlok ™ Copper/Aluminum Lugs 40016 thru 40079 One hole 40132 thru 40178 T wo hole Cable Size AWG/ kcmil Stud Size (in.) 3M ™ Scotchlok ™ Lug Number Crimping T ool-Die Sets (Minimum Number Of Crimps) Burndy Corporation Thomas & Betts Corporation Square D Co[...]
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Page 19
78-81 13-5098-8 Rev F 19 T ooling Index Crimping Information for 3M ™ Stem Connectors Copper/Aluminum Conductor Size AWG & kcmil 3M ™ Connector Number Crimping T able For 3M ™ Stem T ype Connector Stranded Solid Recommended Crimping T ools Manufacturer Mech. T ool Die (Minimum No. Crimps) Hydraulic Die (Minimum No. Crimps) 2 , 1 4 1/0 1, [...]
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3M, Scotch and Scotchlok are trademarks of 3M Company . UniShield is a trademark of General Cable T echnologies 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[...]