A telephone facility and an electrical facility are required in a tunnel. To reduce the effects of EMI and eliminate the need for additional shielding of the cables, where would each facility be placed?

Question

Quizplus · Accepted Answer

Placing the telephone facility and electrical facility on opposite sides of the tunnel will help to reduce the effects of EMI, as the cables will not be running parallel to each other. This will eliminate the need for additional shielding of the cables. Placing them on the same side or together on the same pathway may result in interference between the two facilities. Placing them on the top and bottom parts of the same side may also result in interference, and placing them on the exterior of the tunnel may not be feasible or practical.

A Telephone Facility and an Electrical Facility Are Required in a Tunnel