Color coding of earth conductors, bars and cables screen

Protective earth (PE)

Earth conductors shall be colored yellow / green.

The braid armour shall be covered with sleeves, colored yellow / green.

PE bars shall be marked yellow / green.

Instrument earth (IE)

The IE screen shall be covered with sleeves, colored yellow / green:

IE bars shall be marked yellow / green and with:A red mark for bars containing non-IS cables
only.

A blue mark for bars containing IS cables only.

Both red and blue mark containing non-IS and IS cables.

Bonding

Static earth conductors shall be colored yellow / green.

2 Likes