5 Installation tests
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.1034 – Guidelines for Smoke Control and Ventilation Systems for Internal Assembly Stations and Atriums on New Passenger Ships – (Adopted on 28 May 2002) - Annex - Guidelines for Smoke Control and Ventilation Systems for Internal Assembly Stations and Atriums on New Passenger Ships - 5 Installation tests

5 Installation tests

  5.1 After installation, the smoke control and ventilation systems should be tested to verify that their performance meets the criteria set out in these guidelines.

  5.2 Except for the personnel directly involved, other personnel should be prohibited from entering the spaces under consideration for the duration of the tests.

  5.3 Atriums

  • 5.3.1 Two separate tests should be carried out as described below.

  • 5.3.2 The first test should verify that the smoke control and ventilation systems are capable of starting automatically upon activation of the smoke detection system. The following should be taken into account:

    • .1 it should be ensured that the fans and related dampers are placed in automatic operation;

    • .2 a smoke detector in the space should be activated;

    • .3 it should be verified that the fans start automatically;

    • .4 it should be verified that the dampers are in the correct position; and

    • .5 it should be verified that those doors, which are automatically operated by the detection system, are closed.

  • 5.3.3 The second test should verify that the space is sufficiently free of smoke in 10 min or less. The following should be taken into account:

    • .1 it should be ensured that the fans are placed in manual operation;

    • .2 it should be ensured that the doors, which are automatically operated by the detection system, are closed manually;

    • .3 the space should be filled with smoke using smoke generating machines or equivalent;

    • .4 it should be verified that the smoke has been spread at all levels of the space and that the visibility is reduced to approximately 1 m;

    • .5 it should be demonstrated that within 10 min of the starting of the smoke control system the entire space is sufficiently free of smoke so that on each level, an exit sign adjacent to an exit door can be observed from a position or positions approximately equidistant from all exit doors; and

    • .6 it should be demonstrated that the system is capable of maintaining a negative pressure in relation to the surrounding spaces. It should be verified that the negative pressure does not impair the operation of escape doors.

  5.4 Internal assembly stations

  • 5.4.1 The test to be performed for internal assembly stations should take into account the following:

    • .1 it should be ensured that the fans are placed in manual operation;

    • .2 main entrance doors should be kept open;

    • .3 the ventilation system of the surrounding spaces should be operated under normal conditions;

    • .4 smoke generating machines or equivalent should be located outside the space, close to the main entrance doors; and

    • .5 it should be demonstrated that the system is capable of preventing smoke from entering the space and maintaining a positive pressure in relation to the surrounding spaces. It should be verified that the positive pressure does not impair the operation of escape doors.

Parent topic: Annex - Guidelines for Smoke Control and Ventilation Systems for Internal Assembly Stations and Atriums on New Passenger Ships
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