Normal Condition 1 : Condition of a component of a fire alarm system in which it is giving neither fault nor fire signals, but in which it has the ability to give a fault or fire signal should such an event occur
Solutions Fire Safety Ltd, Fire Safety Glossary: An A - Z of definitions regarding fire safety terms and vocabulary, Solutions Fire Safety Ltd, UK 2012. http://solutionsfire.co.uk/Fire-literatures-PDF/Fi re-Safety-Glossary.pdf, (Fr Sfty - Brit) {465}