Machinery spaces of category A

Machinery spaces of category A
Those spaces and trunks to such spaces which contain:
 internal combustion machinery used for main propulsion
 internal combustion machinery used for purposes other than main propulsion where such machinery
has in the aggregate a total power output of not less than 375 kW
 any oil-fired boiler or oil fuel unit, or any oil-fired equipment other than boilers, such as inert gas
generators, incinerators, etc.
C.14 Mechanical ventilation systems
Systems through which air is passed by ventilators driven hydraulically, pneumatically or by electric motors.
Rules I Ship Technology
Part 1 Seagoing Ships
Chapter 21 Ventilation
Section 1 Ventilation
Edition 2014 Germanischer Lloyd Page 1–4
Mechanical ventilation may also be called power ventilation or forced ventilation.