3M’s Cold Shrink Insulator 8424 series splices utilize a unique cold shrink delivery system, prestretching the material on a removable core. After positioning, removing the core allows the product to shrink into place, creating a moisture-tight seal. This design ensures a permanent and durable connection, meeting ANSI C119 - 1 and Western Underground Guide 2.14 requirements for secondary splices rated up to 1 kV. Ideal for government underground applications and various electrical projects.