Question

High voltage installations require warning notices. List 3 locations where a permanent, legible warning notices carrying the wording “Danger-High Voltage” should be located.(hydrocodes and standard)

Answer 1

The danger warning notices should be located at the following places.

1. Cable Tray Installation: Cable trays containing conductors rated over 600 volts should have a danger warning . The location of the warning notice should not exceed three feet from the installation.

2. All entrances of a high power substations. Because they usually handles high voltages sometimes over 600volt also. So, each entrance should hold a danger warning.

3. Danger warnings also should be placed at all points of access to conductors on all high voltage cable systems as they operates at very high voltages.