(1) Appropriate callers and caution notices shall be prominently fixed on and near interrupter or Isolator switches both in the field as also in the remote control room when opened during maintenance.
(2) Work in the danger zone of overhead equipment. - Before any work is undertaken on a section of overhead equipment, which is normally alive, or on any part of the structure within danger zone, the overhead equipment shall be made dead and earthed in accordance with special instructions.
(3) Every staff responsible for maintenance and repair of electrical ways and works shall additionally abide such other precautions and safety measures as prescribed by special instructions for any specific work involving different types of structures and equipments.