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what should be the distance between instrument cable and electrical cable
Fiber Optic
Keep the cables away from any substance that might generate EMI interference. Also, you can use a shielded cable instead of an unshielded one to reduce interference.
terminanting resistor
It should add a divider between this different type cable to prevent the interference Type your answer here...
150mm
Yes, fiber optics work with light pulses rather that electrical charges. One of the main benefits are that there is no EMI(electromagnetic interference) since magnitism does not affect light. Thus there is no problem with laying electrical cables with fiber optic cables.
there is. shielded cable reduces the interference though
-- galvanized steel cable -- dyed silk cable -- fiber-optic cable
Fibre Optic cable is quicker in transmitting the data rather than Normal cable . This is because Optic cable conducts the Light wave as its speed is high the data transfer rate is also high. Also, fiber is not subject to the adverse electrical effects of electrical/radio interference (EMI/RFI) or electrical damage that results in power electrical/lightening surges. -P2E
Fiber
Fiber-Optic