Section
2 Plans and documentation
2.1 Plans of CA zones and adjacent spaces
2.1.1 The
following plans and particulars of the CA zones and adjacent spaces
are to be submitted in triplicate for approval before construction
is commenced:
-
Capacity plan.
-
Location and installation
of CA equipment.
-
Arrangement of
CA zones in elevation and plan view.
-
Access arrangement.
-
Arrangement and
use of spaces adjacent to CA zones.
-
Details of securing
weather deck and `tween deck hatch lids.
-
Details of securing
gratings in way of hatch lids.
-
Details of weather
deck and access hatch seals.
-
Door seals, scuppers,
pipes, cables and ducts penetrating the decks, bulkheads, etc. together
with proposed design conditions in the CA zones.
-
Specified leakage
rate and proposals for its measurement.
-
Location of sampling
points for CA gas and/or sensors in the CA zones and adjacent spaces.
-
Details of the
gas supply piping system.
-
Details of gas
freeing arrangements including fans, valves, ducts and any interlocks.
-
Details of pressure/vacuum
valves for protecting devices in CA zones, location of outlets from
P/V valves and capacity calculations.
-
Details of security
locks provided on entry to the hatch and manhole covers, and doors
leading to CA zones and adjacent spaces.
-
Arrangements of
ventilation systems for the gas generator compartment and other adjacent
spaces adjoining CA zones.
2.2 Gas supply system
2.2.1 The
following plans and particulars of the gas supply system, etc. are
to be submitted in triplicate for approval, before construction is
commenced:
-
Schematic arrangements
of the proposed gas supply systems and, where applicable, details
of compressors, pressure vessels, membranes, storage tanks, gas cylinders,
control and relief valves and safety arrangements, including pressure
set points of alarm and safety devices.
-
Capacities of
gas supply systems at different oxygen and carbon dioxide levels,
if applicable.
2.3 Humidifiers
2.3.1 Where
applicable, the following plans and particulars of the humidification
system, etc. are to be submitted in triplicate for approval, before
construction is commenced:
-
Specification
and capacity of the system.
-
Principles of
operation and control of relative humidities under different operating
conditions.
-
Details of proposed
equipment, nozzles, pads, heaters, pumps, steam generator, compressors,
water tanks, etc.
-
Layouts of the
equipment and the positioning of sensors and controls.
2.4 Control equipment
2.4.1 The
following plans and details of the control, alarm and safety systems
for CA zones, gas supply compartment and other adjacent spaces, are
to be submitted in triplicate before construction is commenced:
-
Line diagrams
of all control circuits.
-
List of monitored,
control and alarm points.
-
Details of computer
systems, if fitted.
-
Location of control
panels and consoles.
-
Controls of all
valves and dampers fitted to CA zones.
-
Details of oxygen
and carbon dioxide analysers and arrangements for calibration.
-
Relative humidity
(RH) sensors and details of calibration.
-
Details of alarm
system, including location of central control panel and audible and
visual warning devices.
2.5 Electrical
2.5.1 In addition
to the applicable requirements of Pt 6, Ch 2, 1.2 Documentation required for design review, the following information and plans specific to
the installed CA system are to be submitted in triplicate for approval,
before construction is commenced:
-
Main power supply
arrangement to the CA system.
-
Single-line diagram
of the CA system which is to include rating of electrical machines,
insulation type, size and current loading of cables and make, type
and rating of protective devices.
-
A schedule of
normal operating loads of CA system, estimated for the different operating
conditions expected.
2.6 Testing
2.6.1 Details
of the testing programme are to be submitted, including instrumentation
to be used with range and calibration.
|
Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime
and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective
officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications
Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance
on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant
Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is
exclusively on the terms and conditions set out in that contract.
|
![](LR-FooterLogo.png) |
|