Railway Application - Fixed installations - Safety measures to be adopted when working on or nearby OCL

1st edition, 2016-9

The present IRS sets out guidelines to ensure optimum safety for staff working on or near overhead railway contact lines supplied in DC or AC current with the following voltages:

• 1,5 kV and 3 kV DC;
• 15 kV - 16 2/3 Hz;
• 25 kV and 2 x 25 kV - 50 Hz.

The requirements provided in the present IRS aim to ensure safety during maintenance and other works. They apply to all electrical and non-electrical work activities.
The present document focuses on electrical hazards; the risks arising from train traffic and other causes are only summarised.