Investigation of adhesives for the bonding of experimental Kevlar 49/epoxy overhead line neutral sections insulator rods into their metal end fittings (IM-PDU-007)

The possibility of producing trial Kevlar 49/epoxy 25 kV neutral section insulators by bonding the pultruded composite rod into aluminium-bronze end fittings has been investigated. Nine adhesives were evaluated, but no system gave bonds that attained the specified 50 kN minimum failure load. In all cases failure was essentially at...