B.3 Environment and application
B.3.1 Reasonable protection against mechanical damage, appropriate to
the choice of cable and the installation conditions, should be provided.
B.3.2 Type 2 and type 3 cables can be used for the most onerous heavy
duty applications particularly where mechanical damage, exposure to
petrochemicals and explosive atmospheres are significant risks.
B.3.3 Type 3 cables can be used where type 1 and type 2 cables may
be harmed by exposure to corrosive products or solvent substances,
especially petroleum based chemicals or their vapours.
B.3.4 Special precautions for when cables are to be installed in areas
classified as hazardous, e.g. explosive atmospheres, are specified in
BS EN 60079-14.
B.3.5 Cables specified in this PAS are not specifically designed for use:
a) as self-supporting aerial cables;
b) as submarine cable or for laying in water-logged conditions;
c) where subsidence is likely, unless special precautions are taken
to minimize damage;
d) where any exposure to excessive heat under normal operating
conditions is involved; and/or
e) where the oversheath is subjected to a voltage test after
installation.