Switch lock to prevent unauthorised operation of switchgear e.g line protection switch

摘要

The switch lock has a base 18 and hinged 30 onto this is a protective cover 33 The cover has an aperture 35 and into this is inserted a mechanical latch element 40. When this is turned through an arc a tongue 44 engages a recess 45 in the base. In addition the base and cover have hasps 23,50 that are used with a padlock to prevent unauthorised access.