This document specifies methods for the identification and
assessment of hazardous situations leading to explosion and the
design and construction measures appropriate for the required
safety. This is achieved by:
-
risk assessment;
-
risk reduction.
The safety of equipment, protective systems and components can
be achieved by eliminating hazards and/or limiting the risk, i.e.
by:
-
appropriate design (without using safeguarding);
-
safeguarding;
-
information for use;
-
any other preventive measures.
Measures in accordance with a) (prevention) and b) (protection)
against explosions are dealt with in Clause 6, measures according to c)
against explosions are dealt with in Clause 7. Measures in accordance with
d) are not specified in this document. They are dealt with in EN ISO 12100:2010, ClauseÂ
 6.
The preventive and protective measures described in this
document will not provide the required level of safety unless the
equipment, protective systems and components are operated within
their intended use and are installed and maintained according to
the relevant codes of practice or requirements.
This document specifies general design and construction methods
to help designers and manufacturers in achieving explosion safety
in the design of equipment, protective systems and components.
This document is applicable to any equipment, protective systems
and components intended to be used in potentially explosive
atmospheres, under atmospheric conditions. These atmospheres can
arise from flammable/combustible substances processed, used or
released by the equipment, protective systems and components or
from materials in the vicinity of the equipment, protective systems
and components and/or from the materials of construction of the
equipment, protective systems and components.
This document is applicable to equipment, protective systems and
components at all stages of its use.
This document is only applicable to equipment group II which is
intended for use in other places than underground parts of mines
and those parts of surface installations of such mines endangered
by firedamp and/or combustible dust.
This document is not applicable to:
-
medical devices intended for use in a medical
environment;
-
equipment, protective systems and components where the
explosion hazard results exclusively from the presence of
explosive substances or unstable chemical substances;
-
equipment, protective systems and components where the
explosion can occur by reaction of substances with other
oxidizers than atmospheric oxygen or by other hazardous
reactions or by other than atmospheric conditions;
-
equipment intended for use in domestic and non-commercial
environments where potentially explosive atmospheres may only
rarely be created, solely as a result of the accidental leakage
of fuel gas;
-
personal protective equipment covered by Regulation (EU)Â
 2016/425;
-
seagoing vessels and mobile offshore units together with
equipment on board such vessels or units;
-
means of transport, i.e. vehicles and their trailers
intended solely for transporting passengers by air or by road,
rail or water networks, as well as means of transport insofar
as such means are designed for transporting goods by air, by
public road or rail networks or by water; vehicles intended for
use in a potentially explosive atmosphere shall not be
excluded;
-
the design and construction of systems containing desired,
controlled combustion processes, unless they can act as
ignition sources in potentially explosive atmospheres.