Transcription of Fire Detection Systems Guide - gcg-es.com
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Fire Detection Systems Guide - gcg-es.com
Conventionalsystemoperationdetection line operationConventional Detection systemsnormally operate on a 24 VDC the standby condition, thedetectors will draw a low current,typically less than 100 A. When thedetector senses a fire , it will switchinto the alarm condition with it'sLED illuminated, and will collapsethe line voltage by drawing a largercurrent - dependant on thedetectors and control panel, buttypically 50-80mA. The controlpanel can sense this, and activatethe appropriate alarms. Thedetector will remain latched in thealarm state with its LEDsilluminated, even if the smokeorheat is removed until it has beenresetfrom the panel by momentarilyremoving powerfrom the allows the fire to be locatedeven if the signal is intermittent,orto locate possible sourcesofnuisance some control panel - detectorcombinations, when a standardbase is used, there is anincompatibility between the currentspecifications of the detector andpanel, leading to incor
conventional system operation detection line operation Conventional detection systems normally operate on a 24VDC line. In the standby condition, the
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