If you have used other cables to transfer information you must be aware that the cables give off sparks that can be dangerous especially in chemical plants or oil refinery. Fiber optic cables don’t produce sparks; therefore, you have nothing to worry about even if you install them in sensitive areas.
The reason why the units don’t produce sparks is because they don’t carry current. The cables are easy to install There is a popular myth that optic fibers are difficult to install and maintain. While this might have been true in the early days, it’s no longer the case.