EN 50310 : Application of Equipotential
Bonding and Earthing in Buildings with Information Technology
Equipment .
This draft standard addresses earthing and bonding of information
technology equipment in buildings in relation to safety, functional
and electromagnetic performance, taking into account that
the draft does not specify another earthing and bonding system
but selects out of the existing ones (specified in HD 384
series together with IEC 60364-5-548) the best suitable system
to information technology needs (CBN, MESH-BN, TN-S system).
Information regarding the general principles on earthing
for (small) telecommunication installations in buildings has
been published in Recommendation ITU-T K.31.
Depending on the degree of complexity and the size of the
information technology installation, different levels of earthing
and bonding are required. Starting from basic requirements
on earthing and bonding this standard defines the refinements
necessary to operate information technology equipment. The
underlined concepts of this standard are in harmony with ETS
300 253. Therefore large information technology installations
in buildings, which may require special care to avoid damage
or upset from electromagnetic sources can make use of the
bonding configurations and earthing techniques of ETS 300
253.
The specifications of EN 50310 are intended to provide optimum
earthing and bonding conditions for buildings, where information
technology installations are to be operated. EN 50310 should
be applied at least in the case of newly constructed buildings
and whenever possible in existing buildings (e. g. on the
occasion of refurbishment). EN 50174-2 details the considerations
for satisfactory installation and operation of information
technology cabling within the environment of a building operating
a low-voltage electricity.
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