(1) Means shall be provided to prevent excess
pressure in any part of compressed air systems and wherever water-jackets
or casings of air compressors and coolers might be subjected to dangerous
excess pressure due to leakage into them from air pressure parts.
Suitable pressure-relief arrangements shall be provided.
(2) The main starting air arrangements for main
propulsion internal combustion engines shall be adequately protected
against the effects of backfiring and internal explosion in the starting
air pipes.
(3) An discharge pipes from starting air compressors
shall lead directly to the starting air receivers and all starting
pipes from the air receivers to main or auxiliary engines shall be
entirely separate from the compressor discharge pipe system.
(4) Provision shall be made to reduce to a minimum
the entry of oil into the air pressure systems and to drain these
systems.