Components of automatic fire detection systems; part 5: heat sensitive detectors; point detectors containing a static element; german version EN 54-5:1976 (status as of 1988)— 15 стр.
Components of automatic fire detection systems; part 5: heat sensitive detectors; point detectors containing a static element; german version EN 54-5:1976 (status as of 1988)— 15 стр.