4.1.1 The provisions regarding machinery and electrical
installations contained in chapters 4 to 8 provide protection for
personnel from fire, electric shock or other physical injuries. The
provisions apply to both marine and industrial machinery.
4.1.2 Codes and standards of practice which have
been proven to be effective by actual application by the offshore
drilling industry which are not in conflict with this Code, and which
are acceptable to the Administration, may be applied in addition to
these provisions.
4.1.3 All machinery, electrical equipment, boilers
and other pressure vessels, associated piping systems, fittings and
wiring should be of a design and construction adequate for the intended
service and should be so installed and protected as to reduce to a
minimum any danger to persons on board, due regard being paid to moving
parts, hot surfaces and other hazards. The design should have regard
to materials used in construction, and to the marine and industrial
purposes for which the equipment is intended, the working conditions
and the environmental conditions to which it will be subjected. Consideration
should be given to the consequences of the failure of systems and
equipment essential to the safety of the unit.
4.1.4 All machinery, components and systems essential
to the safe operation of a unit should be designed to operate under
the following static conditions of inclination:
-
.1 column-stabilized units − from upright
to an angle of inclination of 15° in any direction;
-
.2 self-elevating units − from upright to
an angle of inclination of 10° in any direction;
-
.3 surface units − from upright and in level
trim to an angle of inclination of 15° either way and simultaneously
trimmed up to 5° by the bow or stern.
The Administration may permit or require deviations from these
angles, taking into consideration the type, size and service conditions
of the unit.