Red visual alarm device with a lit beacon on a wall in a long industrial corridor
Blog
Jarek Wityk

VADs

Guide to Visual Alarm Devices (VADs) in Fire Safety In high-noise workspaces or locations requiring hearing protection, Visual Alarm Devices (VADs) play a critical role in fire safety. They ensure

Read More »
Red fire alarm zone indicator mimic panel with rows of lit zone lamps
Dictionary
Jarek Wityk

zone indicator

part of indicating equipment which visually indicates the zone of origin of a alarm of fire or faultwarning BS 4422 2005 Zone Indicator in Fire Alarm Systems The zone indicator

Read More »
Jet of spray from a nozzle across the wet floor of a dimly lit industrial hall
Dictionary
Jarek Wityk

jet reaction

nozzle reactionforce acting in the opposite direction to the water stream leaving the nozzle BS 4422 2005 “Jet reaction,” also known as “nozzle reaction,” is a fundamental concept in fluid

Read More »
Close-up of a nozzle releasing a fine spray of water droplets lit in orange against a dark background
Dictionary
Jarek Wityk

jet

extinguishing medium, usually water, leaving a nozzle as a continuous stream, water spray, or waterfog (mist) BS 4422 2005 Each of these methods has its own advantages and is chosen

Read More »
Telephone handset icon with a speech bubble showing a flame
Dictionary
Jarek Wityk

Emergency Voice Communication System (EVCS)

What is an Emergency Voice Communication (EVC) system? An Emergency Voice Communication (EVC) system (also referred to as EVCS) is a fixed, monitored, two-way voice communication system that enables point-to-point

Read More »
On this page

    share this page