DIN 18232
Standard 01 / 04
Smoke and heat control
Design and execution of smoke extraction systems; basis for the required vent area.
DIN 18232
Smoke and heat extraction systems (RWA)
Smoke kills before fire does. Smoke and heat extraction systems keep escape and rescue routes clear, lower the temperature and create visibility for evacuation and firefighting.
At a glance.
In a fire it is not the flame that decides the chance of survival, but the smoke. Smoke and heat extraction systems vent it outside in a controlled way and hold the smoke-free layer above the escape routes open for as long as it is needed.
- NRWA — natural smoke extraction: roof windows, dome lights, smoke extraction flaps
- MRWA — powered systems: fan-assisted extraction where natural buoyancy is not sufficient
We calculate the required extraction area, install the actuators, control panels and trigger points, commission the system and keep it in the recurring inspection regime.
- NRWA: e.g. roof windows, dome lights, smoke extraction flaps
- MRWA: fan-assisted systems
- Smoke-free escape routes and reduced temperatures in a fire
- Better visibility for evacuation and firefighting
- Less property and consequential damage through controlled smoke extraction
Kenndaten
- Leitnorm
- DIN 18232
- Inspection interval
- Jährlich
- Regelwerke
- 4
- Prüfpunkte
- 3
Standards & regulations.
The rules this work is planned, installed, signed off and maintained against.
DIN EN 12101-2
Standard 02 / 04
Natural smoke and heat exhaust ventilators (NSHEV)
Product requirements for naturally operating devices.
DIN EN 12101-3
Standard 03 / 04
Powered smoke and heat exhaust ventilators
Requirements for fans used in powered smoke extraction.
VdS 2098
Standard 04 / 04
Guidelines for smoke and heat extraction systems
Supplementary requirements from the property insurers' perspective.
From survey to maintenance.
- 01
Site survey
Record the geometry, the use of the building, existing openings and any conditions already imposed.
- 02
Concept & planning
Calculate the required extraction area, define trigger points and make-up air openings.
- 03
Installation
Fit and wire the actuators, control panel, smoke switches and manual call points.
- 04
Acceptance & commissioning
Effectiveness test, briefing, handover of the logbook and operating documentation.
- 05
Maintenance & documentation
Recurring function test covering actuators, power supply and triggering.
Inspect, maintain, document.
What has to be inspected how often — and the standard each interval rests on.
annually
Inspection 01 / 03
Functional test of the complete system
- DIN 18232 / manufacturer's specification
semi-annually
Inspection 02 / 03
Visual inspection of openings and actuators
- Operator's duty
as required by state law
Inspection 03 / 03
Inspection by an expert
- State inspection ordinance
What you get.
01
Benefit 01 / 03
Escape routes stay passable
The smoke-free layer is the difference between evacuation and entrapment.
02
Benefit 02 / 03
Less consequential damage
Smoke that has been vented means less corrosion and contamination damage to the building.
03
Benefit 03 / 03
Effectiveness evidenced
Every inspection is recorded — usable evidence for the authority and the insurer.
Questions.
Related trades.
What is usually planned and maintained together in practice.
Smoke & heat extraction
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