Page 432 - International safety guide for oil tankers and terminals

INTERNATIONAL SAFETY GUIDE FOR OIL TANKERS AND TERMINALS

Is it possible to release the ship’s moorings to allow it to be
removed from the berth?
---ใช้เพื่อการศึกษาเท่านั้น---
How long will it take for tugs to be mobilised?
Could the deployment of emergency towing-off pennants
งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี
compromise security arrangements at the terminal?
To avoid any unnecessary handling of large wires on ships, it is
suggested that a risk assessment is carried out at the terminal to
determine whether or not there should be a routine requirement
for ships to rig emergency towing-off pennants.

26.5.5.3 Possible Future Developments

Previous editions of ISGOTT have specifically referred to ‘Fire
Wires’ and ‘Emergency Towing-Off Wires’ because there were no
viable alternatives to wires for this purpose. Mooring Equipment
Guidelines (OCIMF) specifically prohibits the use of synthetic or
natural fibre ropes for this purpose on the grounds that they would
burn in the event of a fire.

Since the 4th Edition of ISGOTT was published in 1996, synthetic
fibre ropes having the potential to combine high strength, low
stretch and light weight (typically about one seventh the weight of
ึ
a wire of equivalent strength) have become available. It is likely
that, during the life of this 5th Edition, synthetic fibre ropes with
fire resistance characteristics comparable to wires will become
available.

This edition of ISGOTT therefore leaves open the question of
whether emergency towing-off pennants should be of wire or of
some other material. If terminals wish to accept the use of
synthetic fibre lines that can provide similar functionality to wires,
whilst being safer for personnel to handle on the ship and on the
tugs, they are encouraged to do so.

398 © ICS/OCIMF/IAPH 2006