Section 91(3) in The Indian Electricity Rules, 1956
(3)[ The owner of every high and extra-high voltage overhead line shall make adequate arrangements to the satisfaction of the Inspector to prevent unauthorised persons from ascending any of the support of such overhead lines which can be easily climbed upon without the help of a ladder or special appliances. Rails, reinforced cement concrete poles and pre-stressed cement concrete poles without steps, tubular poles, wooden supports without steps, I sections and channels shall be deemed as supports which cannot be easily climbed upon for the purpose of this rule.]
