Nortel Meridian 1 Option 11C Planning And Installation Manual page 130

Page 130 of 408 Installing the system ground
553-3021-210 Standard 7.00
Procedure 8
Earthing the cabinets (UK)
1 Connect a protective and functional earth wire from the earthing
strip on the test jack frame to the earth at the building entry point.
Use a green/yellow wire no thinner than 10 mm 2 .
2 In each cabinet, connect an earth wire from the earth lug in the
cabinet (see Figure 47 on page 129) to the earth connection at the
Test Jack Frame.
Use a green/yellow wire no thinner than 10 mm 2 . Route the earth wire
through the third groove from the left in the bottom of the cabinet. Place
a DO NOT DISCONNECT tag on the earthing wire.
3 Measure the resistance of the earth between the test jack frame
and the main cabinet frame earth.
The resistance should be no more than 0.25¾ at 30 amperes.
January 2002