Medium Voltage Insulating Boots. Cold applied unscreened elastomeric insulating boots (in Silicon or EPDM) are moulded parts, fitted over the connection between a cable lug and inline or right-angled equipment bushing, to improve phase-to-phase and phase-to-ground insulation. They are used in switchgear and transformer cable boxes where the air clearances are insufficient for normal operation or protect against flashover due to rodents or high humidity. The non-tracking elastomeric housing has excellent erosion resistance, dielectric properties, and environmental resistance, giving superb performance in areas of high humidity and electrical stresses.