Description
Insulator:
It consist of Glass fibre reinforced resin core to provide the mechanical strength, while resisting the electrical stress.
Elastomer sheds to provide the required creepage and stress reduction to with stand the stresses prevailing on the system. Two commonly used material are silicone rubber and Ethylene Vinyl Acetate (EVA).
Suspension & Tension Insulators up to 72.5 kV
RRL’S suspension & tension insulators having high tensile strength of glass fibre have been combined with our High Voltage shedded profile, to produce this rugged, lightweight tension insulator for overhead line applications up to 72.5 kV.
The carefully designed glass fibre core provides high mechanical strength with tensile values of greater than 70 kN
RRL’s compact creepage design insulator profile which has alternating large and small diameter sheds to optimise the pollution flashover performance. It is sealed to a glass fibre rod in a direct injection moulding operation. The interfacial gap is sealed with a tracking and erosion resistant sealant to avoid moisture ingress to the fibre glass rod. The hot dip galvanised steel end fittings are crimped onto the glass fibre core providing high strength corrosion resistant fixing points. A patented crimp control technology prevents damaging the fibre glass rod while achieving maximam mechanical strength.
Station Post Insulator up to 52 kV
RRL’s polymeric station post insulator combines mechanical strength with excellent pollution performance. It consists of a pultruded fibre glass rod and a non-tracking polymer housing which is directly bonded to the metal end fitting.
Corrosion resistant end fittings designed for high cantilever loads are crimped to both ends of the insulator.