Are cables and fiber optic cables power? Call the dead?
Cable has electricity (fiber optic cable), there will be an electric shock risk.Cables are divided into power cables and communication cables.Power cables, the lowest transmission 220V and higher voltage high voltage AC, if the person touched, there will be life-threatening!Communication cables will only have low voltage, that is less than 60V, contact with an electric shock, but not dead;Fiber optic cables transmit light signals. The wire core of the optical cable acts as a tensile force, without electricity.
The cables in use are power, and the cables are out of power.
Into power and communication cables in power cable under the condition of power cables are respectively the dead live cable, communication cable voltage only 48V is not electrically dead (both in normal circumstances)
