Can we learn from the her it age lost in a fire? - Museovirasto

The only visible part in air sampling systems is the tiny end of a plastic pipe –
if it is possible to hide the main pipes in such places as the attic above.
Fire limiting measures
Even if most fires can be avoided, there will always
be a risk. This remaining risk has to be met
by fire preventive or fire limiting measures. These
measures can be administrative, such as routines
for handling a fire, or technical, such as alarms or
sprinklers.
Technical fire limiting measures
Technical fire limiting measures are based
on the following principles:
1. Manual fire fighting
2. Automatic fire-extinction,
such as sprinklers
Effective manual fire fighting depends on:
• Fire detection
• Fire fighting equipment,
such as fire extinguishers or fire hoses
• People to carry out the fire fighting,
either the fire brigade or local personnel.
If the distance to the fire brigade is more
than 10 minutes, it is necessary to rely
on local personnel.
Internal fire detection
There are many types of automatic fire detection
systems. Most of these are designed for the heated
spaces. There are special challenges in unheated
heritage buildings.
Ceiling-mounted detectors are the most common
fire detectors. There are now sufficiently reliable
detectors on the market. Optical detectors are
better than ionic detectors (optical detectors effectively
detect fires without smoke early). Wireless
detectors are being used in Danish and Swedish
royal palaces. Wireless detectors eliminate the
need for visually obtrusive cables.
Air sampling systems have proved to be very
reliable in stave churches and other churches in
Norway. These systems are also extensively used
in farm buildings (with similar difficult climatic
conditions). In Sweden, air-sampling systems are
even used in palaces and museums.
External fire detection
Air sampling is an alternative for external fire detection
in wooden towns. Metal threads melting
at a certain temperature and metal tubes reacting
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