Page 180 - International safety guide for oil tankers and terminals

INTERNATIONAL SAFETY GUIDE FOR OIL TANKERS AND TERMINALS

A copy of the permit should be prominently displayed at the entrance to the space to
inform personnel of the precautions to be taken when entering the space and of any
---ใช้เพื่อการศึกษาเท่านั้น---
restrictions placed upon the activities permitted within the space.

The permit should be rendered invalid if ventilation of the space stops or if any of
ห้องสมุด ศูนย์ฝกพาณิชย์นาวี
the conditions noted in the check-list change.
Restricting the issue of approvals, such as entry permits, so that all cargo tanks
which are safe to enter are shown on one document, may be found to simplify the
paper administration, avoid overlapping and reduce the possibility of confusion as to
which approval applies to which tank. However, if such a system is used, there must
be rigorous control to ensure cancellation of existing permits, and that the
atmospheres of all named tanks are correctly tested at the time of issue so that an
effective extension of a period of validity does not occur by default. It will be
particularly important to ensure that the permit process is supplemented by the
marking of tank lids with notices indicating which tanks are safe to enter.

Inspection of cargo tanks after cleaning and before loading can require an
independent surveyor to enter the tank. All relevant tank entry procedures must be
observed.

10.5 Safeguards for Enclosed Space Entry
ึ
Before allowing access to the space, the Responsible Officer should ensure that:

Appropriate atmosphere checks have been carried out.
Piping, inert gas and ventilation systems have been isolated.
Effective ventilation will be maintained continuously while the enclosed space is
occupied.
Fixed lighting, such as air-turbo lights, are ready for extended entry periods.
Approved self-contained, positive pressure breathing apparatus and resuscitation
equipment is ready for use at the entrance to the space.
A rescue harness, complete with lifeline, is ready for immediate use at the
entrance to the space.

A fully charged approved safety torch is ready for immediate use at the entrance
to the space.
A responsible member of the crew is in constant attendance outside the enclosed
space, in the immediate vicinity of the entrance and in direct contact with the
Responsible Officer.
งาน in the event of an emergency.
All persons involved in the operation should be trained in the actions to be taken

Lines of communications have been clearly established and are understood by all
concerned.
Names and times of entry will be recorded and monitored by personnel outside
the space.

The personnel undertaking the task should ensure that such safeguards are put into
effect prior to entering the space.

146 © ICS/OCIMF/IAPH 2006