Dec 08, 2017
Clamp top insulators (catalogue number 263649) were introduced into Essential Energy Stores in 2012 to provide an alternative to installing through strain constructions on poles where minor conductor uplift (up to 0.25kN) was present on bare conductors. Vice top insulators (catalogue number 261165), which have been available for use on our network before this, are for use on CCT conductors only. Auditors have found that vice top insulators have been incorrectly used on bare conductors in some installations. Using them in this manner can result in electrical tracking and increased chance of functional failure.