For the application of these Guidelines, the terms related
to location are clarified as follows:
Protected space is a machinery
space where a local application fire-fighting system (hereinafter,
referred to as “the system”) is installed.
Protected area is an area (an
installation or a part of installation) within a protected space which
is required to be protected by the system.
3 Principal requirements for the systemfootnote
Interpretation to paragraph 3.2
The activation of the system should not require engine shutdown,
closing fuel oil tank outlet valves, evacuation of personnel and sealing
of the space. Any of these actions would lead to loss of electrical
power or reduction of manoeuvrability. Paragraph 3.2 is not intended
to place requirements on electrical equipment.
Interpretation to paragraph 3.8
When the nozzle direction is intended not to be vertically
downward, in addition to the type approval test in accordance with
MSC/Circ.913, tests should be carried out in the conditions of actual
direction of nozzles to verify the fire-extinguishing capabilities
equivalent to that specified in MSC/Circ.913.
Interpretation to paragraph 3.9
This minimum rating should be applied only to the components
in the protected space.