3.1 The add-on equipment should be strongly constructed
and suitable for shipboard use, bearing in mind its intended location
on the ship.
3.2 It should, if intended to be fitted in locations
where flammable atmospheres may be present, comply with the relevant
safety regulations for such spaces. Any electrical equipment which
forms part of the add-on equipment should be based in a non-hazardous
area, or should be certified by the Administration as safe for use
in a hazardous area. Any moving parts which are fitted in hazardous
areas should be arranged so as to avoid the formation of static electricity.
3.3 The add-on equipment should be so designed
that it functions automatically in conjunction with the existing equipment.
3.4 The add-on equipment should require the minimum
of attention to bring it into operation. In the case of equipment
used for engine room bilges, there should be no need for any adjustment
to valves and other equipment to bring the add-on equipment into operation.
The equipment should be capable of operating for at least 24 hours
of normal duty without attention.
3.5 It should be understood that the complete
type approval with the test fluid C should be performed without interruption
to attend, clean or maintain the bilge water separator. This test
would be regarded as a simulation of the 24 hours of unattended operation
not requiring any crew attention.
3.6 It should be understood that the 15 ppm bilge
separator should operate continuously and automatically without any
interruptions. It should be assured that back flushing if performed
during the certification test does not cause:
-
.1 dilution of the test fluid C, or
-
.2 dilution of the test sample sent to the laboratory
for analysis.
3.7 If input flow of test fluid C is interrupted
during the performance of the test it should be assured that the total
quantities of test fluid C processed automatically are not less than
the nominal flow of the tested equipment multiplied by the specified
test duration of 150 minutes (2.5 hours). While all the time, the
tested equipment operates continuously and automatically without human
intervention.
3.8 The continuous and automatic operation should
apply to the performance tests with the test fluid C according to
the test result diagrams in the appendix to appendix 1 of resolution MEPC.107(49) as it relates
to test fluid C. However, if due to the separation process any interruption
in feeding the test fluid with nominal flow rate, e.g., for back flushing,
is deemed necessary, the time for these interruptions should be added
to the required time of the test step which was interrupted during
the performance test. While all the time, the tested equipment operates
continuously and automatically without human intervention.
3.9 All working parts of the add-on equipment
which are liable to wear or to damage should be easily accessible
for maintenance.