Some of the general hardware, used in C&I poses the greatest challenge to tackle in ageing management. Irrespective of the category of the system for which it is used, the ageing study for this general hardware is required to ensure healthiness for the continued operation of the station. Some of these items are:

• Teflon wires used in control panels

• Terminal blocks of CDF& junction boxes

• Hand Switches

• Transmitter power supply units

• Indicating lamps

• Relays

• Control cables

Failure or deterioration in the condition of these items during reactor operation can jeopardize the trouble free operation of the station. The foremost reason for this is that replacement of these items requires detailed planning and long shutdowns. Hence residual life assessment of these items, during an up gradation job is of prime importance.