Page 20 - Reliable_System_Solutions

insulating pipe with
®
HVI conductor
in the hazardous area

=

®
DEHNconductor system HVI conductor DEHNconductor system HVI conductor
®
in the hazardous area –
co-ordinated, approved and certified.

Special measures have to be taken to protect all industrial sectors and more important. Legislation e.g. the Landesbauordnungen
against explosion in which the processing or transport of (German building regulations) and Betriebssicherheitsverordung
combustible substances causes gases, vapours, mist or dusts (German Health and Safety at Work Regulations) calls for
which create a potentially explosive atmosphere in a mixture lightning protection measures for structures housing potentially
with air. explosive facilities such as paint facilities, chemical facilities,
Depending on the probability and duration of the occurrence large warehouses with combustible liquids and large gas tanks
of potentially explosive atmospheres, the areas of the potentially with a high fire risk. The DEHN conductor system allows for the
explosive system are divided into zones which are referred to installation of an external lightning protection system in
as hazardous areas. Annex D of DIN EN 62305-3 provides detailed hazardous areas 1 or 2 and 21 or 22. Installation instructions
information on lightning protection systems for potentially No. 1501 have to be observed.
explosive systems taking into consideration threats posed by
direct and indirect lightning strokes, causes of damage, structures
to be protected and protection measures to be taken.
Due to the ever increasing complexibility of systems, effective
protection in case of lightning strokes and surges becomes more

50 mm 200 mm

α α
≤1000 mm conductor holder for HVI ®
conductor holder for HVI ® conductor sealing unit conductor holder for
≤ 500 mm conductor fixing plate HVI ® conductor
(distance 50 mm)
fixing plate
Part No. 106 127
Art.-Nr. 106 127
Part No. 275 420
Al distance rod
(distance of 200 mm) Al distance rod
(distance of 200 mm)
Part No. 275 430 Pa
Part No. 275 430
≤1000 mm
≤1000
HVI ® conductor
PAS / EBB
ceiling profile
connecting brace for conductor holder
500 mm (length 500 mm)
Part No. 275 499
air exhaust silo roof