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3M™ Cold Shrink Silicone Rubber Termination Kits QT-III 7672-S-8 for 69kV/72,5kV

Unlike traditional termination kits, 3M cold shrink technology allows the installer to use the same installation techniques as used for medium-voltage cold shrink cable accessories. The simpler installation process can make possible a lower total installed cost and help reduce craft errors that may threaten reliability.

Proven Cold Shrink Reliability
Cold Shrink Terminatin Kit3M Cold Shrink Termination Kits have been shown to provide reliable terminations in challenging environments. Once installed, the cold shrink tube creates a dynamic, compressive environmental seal and electrical interface without sealants or adhesives.

Cold Shrink - We made it first; we make it last

  • Invented by 3M more than 30 years ago. Continually improved by 3M scientists and engineers since then.
  • 3M Cold Shrink Terminations installed more than 25 years ago are still in service.
  • Testing in 3M laboratories demonstrates that the silicone material used in 3M Cold Shrink Terminations and Splices will retain its interface pressure for more than 50 years, based on accelerated life testing.

Applications

  • Covers conductor size range of 250 to 2000 kcmil (125-1000mm²)
  • Solid dielectric insulations, such as PE, XLPE and EPR
  • Accommodates JCN, Tape, LC or TOW/WOT shields
  • Outdoor or indoor installations

7672-S-8 Termination

  • Accommodates cables with an insulation thickness of 650-mil (16.5 mm)
  • Rated for 350kV BIL performance levels
  • Meets or exceeds IEEE 48, Class 1, for 69kV and IEC 60840 for 72,5kV

7672-S-8 (RW) Termination

  • Accommodates cables with a reduced wall insulation thickness of 400 to 470-mil (10.2 to 11.9 mm)
  • Rated for 325kV BIL performance levels
  • Meets or exceeds IEC 60840 for 72,5kV

Advantages

  • Applies quickly and easily,
  • Lightweight,
  • Proven cold shrink reliability,
  • Can be used on a wide range of cables in a wide range of applications,
  • Backed by 3M's renowned technical expertise.

Features

  • Insulator, stress control tubes and compounds and sealing compound are compatible with common solid dielectric insulation.


Termination Selection Guide
  Typical Primary Conductor Size Kcmil (mm2)
Kit ID Primary Insulation OD Range Inches (mm) Jacket OD Range Inches (mm) Tape Shield (TS) Jackets Concentic Neutral (JCN) or Wire Shield Longitudinally Corrugated (LC/HSG)** Tape over Wire or Wire over Tape (TOW) or (WOT)
7672-S-8 IEEE48 69kV IEC60840 72.5kV 1.94-3.08 (49.3-78.2) 2.45-3.35 (62.2-85.1) 250-1750 (120-850) 250-1750* (120-850) 250-1750
(120-850)		 250-1000 (120-500)
7672-S-8 (RW) IEC60840 72.5kV 1.44-2.58 (36.6-65.5) 1.95-3.11 (49.5-79.0) 250-2000 (120-1000)
Notes:

* For standard (non-reduced wall) terminations: Can be used with Jacketed Concentric Neutral (JCN) Cables having a Jacket OD to 3.61" (91.7mm) maximum.

** For Corrugated Armor Cables, please contact 3M Represenitive for sizing information

The final determining factor governing product selection are Primary Insulation O.D. and Jacket O.D.
Related Links
Learn about other innovative products for the Electrical Industry at www.3M.com/electrical