Install Coupled Bonding Conductor ���

The Coupled Bonding Conductor (CBC) provides mutual inductance coupling between the CBC and the telephone cables exposed to lightning. The conductor can be a 10 AWG (#25) (6�square millimeters) wire tie wrapped to the exposed cables, a metal cable shield around the exposed cables, or 6 spare pairs from the exposed cable.

For a high-rise building, connect the CBC to an approved building ground on each floor. To provide the coupled bonding protection:

1. Connect one end of the conductor to a telephone cable building entrance protector ground that is connected to an approved ground.
2. Route the conductor next to the exposed telephone cables being protected until it reaches the crossconnect nearest to the telephone system.
3. Position the nonexposed telephone cables at least 12 inches (30.5 centimeters) away from exposed telephone cables whenever possible.
4. Terminate the other end to the single-point ground block provided for the telephone system.