Suitable arrangements

Suitable arrangements shall be made to permit the release of smoke in the event of fire (see
D.7.3.3).
E.5.10 Further requirements for control of fans and fire closures are stipulated in D.7.2 and D.7.3.3.
For application and design of fire closures see D.4.1.
E.5.11 Air ducts close to electrical switchboards must be so installed and fitted with drains, where
necessary, that condensed water cannot enter the electrical installation.
E.5.12 In case that a gas fire-extinguishing system is provided for the machinery space it is recommended,
that one of the engine room supply fans should be of reversible type and supplied from the
emergency source of power supply to enable extraction of fire extinguishing gases, should the need arise.
E.5.13 Power driven fire closures for engine rooms containing combustion engines shall not close
automatically in case of loss of energy (fail safe type) unless an uninterrupted, adequate air supply to the
engine room can be maintained. This requirement is deemed to be met if e.g. a sufficient number of fire
closures at air inlets and/or air outlets are of manual operated type. For a pneumatically operated system
for fail safe type fire closures, the air supply may be from one air receiver located outside the machinery
space with separated piping from air receiver to the fire closures. For arrangement of air receiver the GL
Rules for Machinery Installations (I-1-2), Section 11, D.6.5 are to be used analogously.