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Hi,
We are setting up a power plant and in the design phase at the moment. We are discussing spare cores for control and instrumentation cables and not having an agreement with EPC contractor.
Our EPC contractor is Chinese and they are designing the spare cores inside the cables according to the Chinese standard. According to their standard they are designing spare cores only for control cables which have 7 or more cores. For 7 or lesser cores, there will be no spare core. Similarly, for Digital Input, Analog Input and Thermocouple Input, there will be no spare core for 1X2X1 and 2X2X1 and at least one spare core for 5X2X1 or 7X2X1.
For reliable and safe operation of plant (considering it 30 year life) and considering cable laying as a one time activity, we the owners want a spare core in each and every cable.
We want to know any specific code or standards that highlights the spare cores for the control and AI,DI, RTD and TC cables to be left inside the cables.
Any help in this regard will be highly appreciated.
We are setting up a power plant and in the design phase at the moment. We are discussing spare cores for control and instrumentation cables and not having an agreement with EPC contractor.
Our EPC contractor is Chinese and they are designing the spare cores inside the cables according to the Chinese standard. According to their standard they are designing spare cores only for control cables which have 7 or more cores. For 7 or lesser cores, there will be no spare core. Similarly, for Digital Input, Analog Input and Thermocouple Input, there will be no spare core for 1X2X1 and 2X2X1 and at least one spare core for 5X2X1 or 7X2X1.
For reliable and safe operation of plant (considering it 30 year life) and considering cable laying as a one time activity, we the owners want a spare core in each and every cable.
We want to know any specific code or standards that highlights the spare cores for the control and AI,DI, RTD and TC cables to be left inside the cables.
Any help in this regard will be highly appreciated.