When requesting an electric fence compliance certificate, explain any earlier partial removals as well as the changes now proposed. Missing history should be identified honestly. The inspector needs to assess the installation that remains, including relevant connections and equipment; an old certificate should not be edited to describe a different arrangement.
If a retained section has started giving trouble after previous work, supply the dates and the work description for electric fence fault finding. Do not reconnect discarded conductors or try different combinations yourself. Where another owner or a body corporate controls part of the installation, agree the work with that responsible party before any removal or replacement is quoted as authorised.