8.3.1 A special maintenance manual should be prepared
for the gas supply system on board.
8.3.2 The manual should include maintenance procedures
for all technical gas-related installations, and should comply with
the recommendations of the suppliers of the equipment. The intervals
for, and the extent of, the replacement/approval of gas valves should
be established. The maintenance procedure should specify who is qualified
to carry out maintenance.
8.3.3 A special maintenance manual should be prepared
for electrical equipment that is installed in explosion hazardous
spaces and areas. The inspection and maintenance of electrical installations
in explosion hazardous spaces should be performed in accordance with
a recognized standard.footnote
8.3.4 Any personnel that should carry out inspections
and maintenance of electrical installations in explosion hazardous
spaces should be qualified pursuant to IEC 60079-17, item 4.2.