For the detection of penetration by water and chemical mixtures in connecting sleeves by means of an intermediately spliced fibre ring ITU-T G.652.D
Water detectors are used to detect leaks. They serve to prevent transmission breakdown in telecommunication facilities, seepage from service or waste water in the earth or ground water pollution due to leakage of chemical substances.
If a leak occurs, the water sensor cause measurable attenuation changes as a result of manufacturer-dependent macrobending loss in the fibre.
Various types of water sensors are available, in accordance with market needs -> See Table WO44 part 0: Water detector delivery programme.