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kV - Terminations

Today's global transmission infrastructure requires terminating solutions for underground solid dielectric cable that meet
a variety of construction types and sizes. 3M Company manufactures a full line of high voltage terminations through
145 kV. The 3M high voltage termination portfolio consists of a variety of technologies from push-on to Cold Shrink and
dry-type to wet-type. 3M provides high voltage terminations that are designed to fit a universal cable and can be
equipped to meet the specific high voltage application needs of each customer. In addition to providing customers with
a proven termination solution , 3M is committed to working closely with each customer to support the successful
installation of each connection .

Application: Connecting lug - - - -----41 Armature
• 145 kV voltage class provides
• Cable Insulation OD range: 57mm - 86mm Silicone insulator environmental
• Solid Dielectric (XLPE or EPR) insulated cables over glass-reinforced seal
• Up to Very High (Class 4) pollution class polymeric tube
• Maximum installation angle of 30°

Features: l-tIP-o:::=-- - Filling
compound
• One piece pre-molded Cold Shrink silicone stress
Cold shrink
cone silicone rubber
~==-_ stress cone
• No special tool required for installation
Alternating
• One stress cone covers variety of cable insulation ~~- shed (skirt)

diameter design

• Light-weight construction, approximately 1/3 the Base plate
Post
weight of porcelain terminations insulator

• Easier handling, transportation and installation than

porcelain insulator Heat shrink tube - _....

• Hydrophobic silicone materials provide excellent

environmental performance

• Smooth surface enables self-cleaning properties Silicone
• Less sensitive to earthquakes, vibrations and sealing
sleeve
thermal variations

• Internal shear bolt connection eliminates need for

crimp type connection

Wet Silicone Termination, TS145-11 Series

Typical Conductor Size Insulation 0.0.*
Kcmil (mm2) in (mm)

For 115 kV, 650-800 mil Cables For 138 kV, 700-850 mil Cables 2.44 - 2.73 (57 - 67)
2.64 - 3.11 (67 - 79)
<500 «240) <500 «240)

500 - 1750 (240 - 850) 500 - 1250 (240 - 630)

*Insulation 0.0. cannot be less than the range minimum following cable preparation (semi-con
removal and sanding).

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