Standard low voltage bus systems are not insulated, 5kV through 38kV conductors; however, are fully insulated and foil tested in accordance with ANSI C37.23, Section 6.2.1.4.

Epoxy Insulation is standard using a fluidized bed process which provides the highest quality insulation system available. High dielectric strength, excellent chemical resistance, durable mechanical characteristics, 130°C thermal rating and high thermal emissivity are distinct advantages this insulation offers. The epoxy is bonded to the bus eliminating air gaps which could initiate corona problems.

5-15kV shipping splits are insulated with removable boots. No special skills are required to install boots which eliminates the quality control concerns associated with wrapped joints.

38kV shipping splits are provided with electrical compounds to fill voids around the hardware and a semi-conducting tape to eliminate voltage stress prior to the application of the 130°C insulating tape and PVC jacketing tape.