Instruction/ maintenance manual of the product 7620-T-95 3M
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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.
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 18.
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 .
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.
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.
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 ).
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.
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 ).
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.
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.
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 ).
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 .
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.
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 ).
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.
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 ).
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.
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.
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.
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.
An important point after buying a device 3M 7620-T-95 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought 3M 7620-T-95 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data 3M 7620-T-95 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3M 7620-T-95 you will learn all the available features of the product, as well as information on its operation. The information that you get 3M 7620-T-95 will certainly help you make a decision on the purchase.
If you already are a holder of 3M 7620-T-95, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime 3M 7620-T-95.
However, one of the most important roles played by the user manual is to help in solving problems with 3M 7620-T-95. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3M 7620-T-95 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
