Page 156 - International safety guide for oil tankers and terminals

INTERNATIONAL SAFETY GUIDE FOR OIL TANKERS AND TERMINALS

It may be appropriate to have two levels of meetings – one on a management
level and one that addresses the practical issues associated with carrying out
---ใช้เพื่อการศึกษาเท่านั้น---
specific tasks.

งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี
9.4 Hot Work

There have been a number of fires and explosions due to Hot Work in, on, or
near cargo tanks or other spaces that contain, or that have previously contained,
flammable substances or substances that emit flammable vapours.

Hot Work should only be considered if there are no practical alternative means
of repair.

9.4.1 Control of Hot Work

The SMS should include adequate guidance on the control of Hot Work and
should be robust enough to ensure compliance (see Figure 9.2). Absence of
guidance should be regarded as prohibition rather than approval (IMO
MSC/Circ. 1084).

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9.4.2 Hot Work Inside a Designated Space

Whenever possible, a space such as the engine room workshop, where
conditions are deemed safe, should be designated for Hot Work and first
consideration should be given to performing any Hot Work in that space.

If the company designates such a place, it should be assessed for possible
risks, and the conditions under which Hot Work can be undertaken in that
place defined.

These conditions should include the need for additional controls, including
consideration of the conditions under which Hot Work may be carried out in
the designated space, when taking bunkers alongside or at anchor.

9.4.3 Hot Work Outside a Designated Space

9.4.3.1 General
Hot Work undertaken outside the designated space should be controlled
under the SMS by means of a permit to work system.

The Master should decide whether the use of Hot Work is justified and
whether it can be safely undertaken. The Master or Responsible Officer
must approve the completed permit before any Hot Work can begin.

Consideration should be given to performing only one Hot Work operation
at a time, due to the resource limitations usually present on board a
tanker. A separate permit should be approved for each intended task and
location.

A risk assessment should be carried out to identify the hazards and
assess the risks involved. This will result in a number of risk reduction
measures that will need to be taken to allow the task to be carried out
safely.

122 © ICS/OCIMF/IAPH 2006