Page 3 - Biogas_Plants

Protection solutions for

biogas plants

Complex and cost-intensive plants with fully automated
processes are required to generate useable final products
from biomass. Since an explosive mixture of gas and air is
formed in the vicinity of fermentation and gas tanks, these
parts are classified as potentially explosive atmospheres.
Consequently, reliable protection concepts are required to
ensure permanent availability and safe operation.
European directives as well as their translation into nation-
al standards and regulations describe explosion protection
as well as health and safety measures*. According to the
EN 1127 standard, lightning strikes and their effects must
be considered as potential source of ignition of explosive
gas mixtures. Therefore, measures are required to reduce
the effects of lightning strikes and to prevent ignition of
potentially explosive atmospheres**.
The IEC/EN 62305 standard series is an overall lightning
protection concept and provides information on the
assessment of risks and the planning and implementation
of protection measures***.
DEHN has long-standing know-how in lightning and surge
protection for biogas plants. We offer internal and external
lightning protection products and customer-specific
solutions. For this reason, many biogas plant installers and
operators rely on our protection solutions.

* Directive 2014/34/EU of the European Parliament and the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to equipment
and protective systems intended for use in potentially explosive atmospheres
Directive 1999/92/EC of the European Parliament and of the Council of 16 December 1999 on minimum requirements for improving the safety and health protection of
workers potentially at risk from explosive atmospheres
** EN 1127 Explosive atmospheres – Explosion prevention and protection
*** IEC/EN 62305 Protection against lightning
TRGS 529 Activities regarding the production of biogas 3