16 mm 2
1
Figure E 6.6  Typical TN-C-S protective equipotential bonding layout.
6
9 9999 9
KEY 1 Earthing conductor 2 CPCs 3 Main protective bonding conductor 4 Metal water pipe 5 Metal gas pipe 6 Cut-out earth terminal 7 Main earthing terminal 2
16 mm
2
1
7
10 mm 2
3
3
10 mm 2
4
5
Earthing and Bonding
179
E