Page 189 - International safety guide for oil tankers and terminals
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ENCLOSED SPACES



                                        pre-agreed intervals and failure to respond should be cause to raise the
                                        alarm.
      ---ใช้เพื่อการศึกษาเท่านั้น---
                                        VHF/UHF communication should not be used as a primary
                                        communication method where it is known that reception may not be
                                        Notices should be displayed at the pumproom entrance prohibiting entry์นาวี
                                        reliable or practicable due to noise. Where communication by VHF/UHF is
                                        difficult, it is recommended that a standby person is positioned on the
                                        pumproom top and that a visual and remote communication procedure is
                                        put in place.

                                        The frequency of pumproom entry for routine inspection purposes during
                                        cargo operations should be reviewed with a view to minimising personnel
               งานห้องสมุด ศูนย์ฝกพาณิชย
                                        exposure.


                                        without formal permission.




                    10.11 Pumproom Operational Precautions



                                A pumproom contains the largest concentration of cargo pipelines of any
                                space within the ship and leakage of a volatile product from any part of this
                                                                          ึ
                                system could lead to the rapid generation of a flammable or toxic atmosphere.
                                The pumproom may also contain a number of potential ignition sources
                                unless formal, structured maintenance, inspection and monitoring procedures
                                are strictly followed.





                              10.11.1 General Precautions
                                        Before starting any cargo operation:
                                          An inspection should be made to ensure that strainer covers,
                                           inspection plates and drain plugs are in position and secure.
                                          Drain valves in the pumproom cargo system, especially those on cargo
                                           oil pumps, should be firmly closed.
                                          Any bulkhead glands should be checked and adjusted or lubricated, as
                                           necessary, to ensure an efficient gas-tight seal between the pumproom
                                           and the machinery space.

                                        During all cargo operations, including loading:
                                          The pumproom should be inspected at regular intervals to check for
                                           leakages from glands, drain plugs and drain valves, especially those
                                           fitted to the cargo pumps.

                                          If the pumps are in use, pump glands, bearings and the bulkhead
                                           glands (if fitted) should be checked for overheating. In the event of
                                           leakage or overheating, the pump should be stopped.

                                          No attempt should be made to adjust the pump glands on rotating
                                           shafts while the pump is in service.












                                                   © ICS/OCIMF/IAPH 2006                                       155
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