Power loss due to temperature rise in the optical unit of optical fiber composite low voltage cable

Smart Grid distribution network consist of power supply cable as well as two way communication between the customer and grid. This two way communication is carried out by Optical Fiber composite low voltage cable (OPLC). OPLC is the product of Sate Grid Corporation of China. As the three phase current flow in the conductors the flow of current cause the temperature to rise in the cable. This temperature rise affects the light in the single mode optical fiber in the cable causing the attenuation loss. In this paper we have analyzed the power loss in optical fiber as the temperature rise due to flow of current in the cable. The single mode optical fiber G.652.D at the temperature range from -30 °C to 100 °C. We have used the light source (Fiberlabs) to transmit light in the single mode fiber as an input, the power energy meter PM320E to measure the output power and the attenuation loss, temperature controller to control the desired temperature at which the power loss is measured, the data obtained is saved by using the RS232 protocol by PM320E data log. And the experimental results are fitted with the theoretical analysis.