3M 7000138422 Heat Shrink Cable Repair Sleeve 35 Kv

Product Description

The 3M 7000138422 is a wraparound heat shrink cable repair sleeve rated for use up to 35 kV. It is designed to restore damaged cable sheaths on medium-voltage power cables. The inner wall is coated with a hot melt adhesive that forms a watertight, corrosion-resistant bond when heat is applied. A corrosion-proof metal clip fully closes the sleeve before shrinking, eliminating the need to de-energize and disconnect the cable for sleeve installation. Licensed electricians and cable splicing technicians working on underground or overhead medium-voltage distribution systems typically specify this product where a permanent, mechanically tough sheath repair is required.

This sleeve is suited for medium-voltage cable applications in residential, commercial, and industrial distribution systems. It performs in demanding environments including direct-buried, conduit, and exposed aerial installations. Beyond primary sheath repair, it is also applied over cable joints as a secondary sealing layer and as supplemental corrosion protection on undamaged cable runs where additional mechanical protection is needed. The wraparound format allows installation without cutting or pulling a new sleeve over a long cable run.

Key Features

• Rated for medium-voltage cable systems up to 35 kV
• Hot melt adhesive inner wall creates a watertight, corrosion-resistant seal on heat application
• Corrosion-proof metal closure clip secures the sleeve before and during shrinking
• Wraparound design installs without disconnecting or re-pulling cable
• Suitable for sheath repair, joint protection, and supplemental corrosion protection on undamaged cables
• Resistant to mechanical stress in aggressive installation environments

Compatibility

Designed as an OEM-style replacement and standard-fit sleeve for medium-voltage power cable sheath repair applications up to 35 kV.

Installation Notes

Installation is performed by qualified electricians or certified cable splicers in accordance with applicable NEC requirements and the authority having jurisdiction. De-energize and follow lockout/tagout procedures on the affected cable circuit before beginning any sheath repair work. Wrap the sleeve around the cable, secure the metal closure clip, and apply heat evenly with a propane or butane torch using smooth back-and-forth strokes to activate the adhesive and achieve uniform shrink. Do not apply concentrated heat to a single point, as uneven shrinkage can compromise the seal.

Technical Specifications

• Voltage Rating: 35 kV
• Weight: 1.86 pounds
• Closure Type: Corrosion-proof metal clip
• Inner Wall: Hot melt adhesive coating
• Unit of Measure: Each
• Minimum Order Quantity: 5
• UPC: 04001895590863

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000138422