METHOD STATEMENTS FOR DREDGING WORKS

Mô tả: The purpose of this Method Statement is to describe the methodology for structural work of METHOD STATEMENTS FOR DREDGING WORKS and to details out the steps to be taken in meeting the technical requirements of Van Phong 1 thermal power plant project.

Purpose

The Van Phong 1 BOT Thermal Power Plant is located in Van Phong bay and contiguous to

My Giang transshipment and petrol intrepot warehouse area

This Method Statement outlines the dredging methodology to be employed at the designated area for the Van Phong 1 BOT Thermal Power Plant Project, ensuring compliance with technical standards and Environmental, Health, and Safety (EHS) requirements.

Figure 1 General plan of Dredging works

Scope of work

This method statement described the work sequence, manpower and equipment for dredging work in coal jetty, unloading ramp front area, and intake and discharge canal area

The dredging works will be carried out by designed suitable equipment and disposal will be dump on the Landfill

The Contractor will carry out the following dredging work with it estimated volume

1 Coal Jetty Front Area EL.-18.3m 141,369

2 Unloading ramp front Area EL.-5.6m 139,346

The equipment mobilization plan

Table 2 Equipment mobilization for Dredging

METHOD STATEMENTS FOR DREDGING WORKS

No Equipment name Capacity Quantity Remarks

1 Trailing Suction Hopper Dredger 4500 HP -

2 Floating pump station equipped 02 pump machines

Before mobilizing to the site, it is essential to submit all necessary certificates and insurance for the equipment to the Employer Additionally, all marine equipment must secure a permit from the Port Authority prior to commencing work on the project.

Table 3 Plan of Equipment mobilization for Dredging

2.1.1 Preparation & maintenance of landfill area

2.1.2 Leveling and compaction on landfill area

1 Trailing Suction Hopper Dredger 4500HP

2 Floating pump station equipped 02 pump machines, D200 pump pipe 2x400HP 3 1 1 1

Site Organization Chart

EHS MANAGER QA/QC MANAGER

DREDGE TEAM DISPOSAL & LANDFILL TEAM

Sequence of work

General schedule

Please see ATTACHMENT 01: SCHEDULE FOR DREDGING WORKS

Setting out of dredging areas; disposal area (LANDFILL), temporary jetty, floating pump station and dredged material transport routes…

Moving equipment to dredging areas

Transport to Floating Pump Station

Demobilization Preparation work & Pre-survey

Site preparatory work

Setting of construction buoy

Before starting dredging work, the designated areas must be clearly marked on the site layout using construction buoys Navigation buoys will be installed according to the specifications outlined in the Marine Safety Assurance Plan.

Figure 5: Marking position buoys plan for dredging area

Onshore excavation and dredging work

A temporary cofferdam will be constructed to establish a boundary between onshore excavation and dredging works, ensuring dry conditions before excavation begins This site will serve as the termination point, managed by an onshore contractor.

< Section of temporary cofferdam (by onshore)>

Tide gauge installation

- In order to control the vertical of the work, the tide gauge shall be installed to comply with the requirement

Temporary tide gauges will be strategically installed around the Site to provide immediate visual measurements of sea level These gauges will be constructed vertically and securely fixed to rigid supports at agreed locations, ensuring tidal readings with an accuracy of ±20mm Made from 50mm thick hardwood and at least 150mm wide, the gauges will be established at 0.0m relative to Chart Datum Additionally, the marked faces of the gauges will feature alternate 100mm stripes for clear visibility.

Method statements for dredging works will be marked in red and white, with black numbering at 0.5m intervals across the tidal range The painting process includes one primary coat, two undercoats, and a final finishing coat.

Pre-dredging Survey

• Survey equipment shall be inspected with full calibration document

Table 3 Table of Survey Equipment

Equipment name Capacity Unit Quantity Remarks

GPS Garmin map Cs 60 Set 04

Auto Level ± 3MM/KM set 01

Benchmarks will be established with a focus on permanence, undergoing regular checks and validations by certified surveyors or third-party experts The findings will be documented and submitted for approval to the owner or consultant in a separate document.

• The dredging area will be surveyed by using echo sounder method

Hardwood (50mm thick, 250mm wide)

• Echo Sounder will be calibrated before surveying by “Bar check method”

• The purpose of “Bar check method” is to check the accuracy of echo sounder before using,

To ensure accurate measurements, attach a reflection plate to a steel rod marked with a scale Lower the rod vertically beneath the transducer, halting at a predetermined depth Compare the depth indicated on the scale of the steel rod with the depth displayed on the recorder to verify consistency in readings.

If a difference is found between the two values within acceptable tolerance (6 for this activity therefore a Job Safety and Environmental Analysis (JSEA) shall be conducted.

Control measures will be regularly reviewed and monitored to assess their suitability and improvements made if required

Any modifications to working conditions or operations, such as changes in sequencing, the introduction of new equipment, or the involvement of new personnel, will necessitate a new risk assessment This assessment will lead to the implementation of additional control measures tailored to the specific operation.

RRN >6 for this activity therefore a Job Safety and Environmental Analysis (JSEA) shall be conducted.

Work on live electrical circuits -

Project : Van Phong 1 Thermal Power Plant

People Cause of at Risk Adverse Effect

RISK ASSESSMENT FOR DREDGING WORKS

Job / Task Adverse Effect L 1 S 1 RFN ** Control Measures L 2 S 2 RRN * Assessment

- Ignition of flammable gases and combustible materials

- Faulty cables, extension leads, plugs and sockets

- Warning signs and safe working distances displayed in the vicinity of overhead cables

- Protection provided to overhead cables/services

- Only competent persons authorized to work

- PPE shall be worn at all times

- Contact with high voltage overhead lines

- Damage to public electrical network

- Environment pollution due to fire or explosion

- Training awarness to the drivers of mobile plant, vehicles and equipment

- Identification of all known overhead high voltage lines

- Watchman in place to check the overhead lines

- Serious injuries to third parties

- Trial holes dug in vicinity of all underground services

- Review of existing services drawings prior to operations

- PPE shall be worn by all operatives

- Collision with public services network

- Damage to public network, social conflict

- Damage to the environment due to excessive smoke in result of fire and explosion

- Identification of all known public service networks

- Highlighting the public service networks with visible warning signs

- Training and awareness of workers and drivers/operator working nearby public service networks

Use of plant and equipment

- Plant register containing all plant and equipment on site as well as relevant documentation i.e test certificates, examination reports, inspection/maintenance reports, operator competency certificates, etc.

- Regular inspections and maintenance undertaken on all equipment by competent persons

- All defective items reported immediately, if defect renders equipment unsafe to use it will be removed from site until repaired

- Segregation of areas when plant being used

- Banksman used for all plant movements

- PPE must be worn at all times

- Traffic management plan adhered to when moving around site

- Seat belts worn, and audible devices used when moving plant

- Mandatory all operators and drivers to attend defensive driving safety training

Any alterations to working conditions or operations, such as changes in sequencing, the introduction of new plant or equipment, or the involvement of new workers, will necessitate a new risk assessment This assessment will lead to the implementation of additional control measures tailored to the specific operation.

Work involving the use of equipment with high reach or high sided vehicles.

Work near to underground services (Gas, Electric, Water &

Any modifications to working conditions or operations, such as changes in sequencing, the introduction of new plant or equipment, or the involvement of new workers, will trigger a new risk assessment Subsequently, additional control measures will be implemented to align with the updated operations.

Any modifications to working conditions or operations, such as changes in sequencing, the introduction of new plant or equipment, or the involvement of new workers, will necessitate a new risk assessment This assessment will lead to the implementation of additional control measures tailored to the specific operation.

Use of plant and equipment

- Generation of noise and vibration

- Effect on people health due to excessive noise

- Effect on people health due to dust emission into air

- Environment pollution due to fire or explosion

- Control of noise through inspection of all equipment, tools and plants before entering to the site

- Control of dust emission through regular water spray on roads

- Fire prevention plan implementation proactively

- Fire extinguisher in place on all equipments

- Use of ear plug when exposed near noise area (above 85 dB)

- Electrical equipment register containing all electrical equipment on site as well as relevant documentation

- Temporary power supply, portable electrical tools, cables will be tested and inspected every three months by competent persons, and tagged to certifying it is safe for use

- All defective items reported immediately, if defect renders equipment unsafe to use it will be removed from site until repaired

- Double insulated cables to be used on hand held tools

- All cable routes shall be designated so that to not obstructed access/egress walkways

- Use of industrial plug 44 for all power tools at site

- Generation of noise and vibration

- Generation of hazardous dust from wood saw and concrete grinding

- Effect on health due to noise and vibration

- Effect on health due to hazardous dust emission into air

- Control of noise and vibration through inspection of tools and equipment before entering to site

- Segregation of wood cutting area from other activities

- Control of concrete dust by using dust suckers

- Use of appropriate PPE (ear plug respiratory protection)

Any modifications to working conditions or operations, such as alterations in sequencing, the introduction of new equipment, or the involvement of new personnel, will necessitate a new risk assessment This assessment will ensure that appropriate control measures are implemented to align with the updated operations.

Others Use of electrical tools - Drills,

- Proximity of stored materials, waste materials or plant falling into excavation

- Supervision of work by competent person

- Adequate shoring (sloping 34 degree angle / benching) and battering of excavation to prevent collapse

- Edge protection installed around excavation

- All materials stored at least 2m away from excavation edge

- Air monitoring inside excavation to ensure no hazardous fumes present

- Influx of sea water controlled by the use of pumps

- For vehicles tipping materials into excavation, stop blocks should be used at all times, banksman should be available

- All vehicle movements controlled by a banksman

- Proper access to be provided with steps and railings

- Heavy equipment must be minimum 5 meters away from the edge of excavation

- Hard barricade with signages installed around the excavation

- Doosan electrical representative to check actual location of excavation prior to approval of PTW

- Good quality of as-built drawing with detailed underground facilities attached to the PTW

- Copy of approved PTW with drawing MUST be with the excavating crew at all time

- Effect on people health due to dust emission into air

- Effect of people health due to excessibe noise of equipment

- Public encountered with open excavations could cause serious injuries

- Control of dust emissions through regular water spray

- Restricting high noise equipments entering to site

- Inspection of all equipments before entering to site

- Provision of hard barricades and clear warning signs

- Provision of warning lights during night time for excavations nearby public roads and residential areas

- Supervision of work by competent person

- Atmospheric monitoring used to monitor environment

- Development of suitable and sufficient emergency procedures

- Confined space signages, warning and contact numbers posted on the access / egress of confined space

- Proper lighting illumination on work areas (if needed)

- Forced mechanical ventilation on confined space (if needed)

- Any kind of cylinder not allowed inside a confined space

Transportation and Traffic Mitigation

B 06.03.2020 For Review J H Choi S M Park Vicente

A 16.10.2019 For Review J H Choi S M Park S M Park

REV DATE DESCRIPTION Approved Checked Prepared

VAN PHONG POWER COMPANY LIMITED

Van Phong 1 BOT Thermal Power Plant Project

IHI–TESSC–CTCI–DHI CONSORTIUM

VP1-EPC-L4-H-GEN-00006 Rev B 2 of 13

Van Phong 1 BOT Power Plant

This document outlines essential traffic regulations for operations at construction sites, as well as off-site roads and both onshore and offshore traffic activities It serves as the minimum standard to be implemented across all project locations.

 Assign personnel to be responsible for Transportation and Traffic Control

 Ensuring that the approved traffic control measures are established, implemented and maintained in accordance with the approved plans

 Amending and updating the plans, as required, to ensure that they remain current as the work progresses

 Establish and implement Transportation and Traffic Control at site and off site

 Establish HSE team comprising of sufficient and competency resources to comply with the Project’s Environment and Social management plan

 Manage Subcontractors in line with Environment and Social management plans

 Ensure to provide separate access for vehicles, heavy equipment and pedestrian at construction site

 Conduct pre-mobilization meetings with subcontractors to review, clarify job requirements and to make sure to comply with safety requirements including traffic and transportation control for site

 Ensure workers are fully competent by ensuring their attendance at the training organized and provided as required

 Ensure all Subcontractor drivers and operators shall comply and attend required safe driving awareness for the project (Safe Driving Training Awareness)

 Conduct random speed monitoring at site using speed gun

 Review and approve all request documents when entering the site

 Ensure all road traffic signs are fixed and posted around construction site road

 Conduct regular Environment and Social monitoring and report regularly

 Control the access / egress of construction site

 Ensure that all vehicle, heavy equipment, visitors and delivery materials have required approved vehicle pass prior entry to site

 Provide short briefing information about project road regulation (speed limit, parking area, emergency light on, etc.) to visitors, delivery truck drivers and other temporary vehicle entering the site

 Conduct random speed monitoring at site using speed gun

 Ensure all heavy equipment vehicles conducted wheel washing prior going out the site

 Assist HSE Manager with relevant E&S aspects associated with Subcontractor’s activities onsite

 Ensure that all the Project’s activities are being carried out in compliance with the Applicable

Standards and Project’s Environment and Social management plans

 Coordinate Environment and Social audits/ inspections associated with the scope of work and follow up corrective actions

 Implement the Environment and Social management and monitoring plan and prepare Environment and Social data for the Environment and Social performance report

 Promote Environment and Social awareness at the Project’s site

 Conducts medical and physical examination to employees and writes the necessary recommendation

 Makes the necessary hospital referral for cases that to his judgment cannot be treated at the clinic

 Before any hospital referral shall be made, the Doctor shall coordinate with the Site EHS Manager or his designated representative

 Conducts periodic inspections of the job-site and its premises regarding the health and hygiene standards of the site

 Conducts Weekly basis on alcohol testing to 10 drivers / workers at site using BAC (Breath Alcohol Tester)

 Conduct Monthly basis on Visual signs of narcotic abuse being observant to 10 workers

 Comply with the Project’s Environment and Social policy, and requirements of this Transportation and Traffic Mitigation Manual

 Maintain roads in a clean and safe conditions

 Attend the training as required in the training plan

 Notify immediate supervisors or HSE personnel of any perceived problems or deviations associated with Environment and Social issues

 Take corrective or preventive actions required by the Project

 Report all accidents, incidents and dangerous occurrences

 All Subcontractor drivers and operators shall comply and attend required safe driving awareness for the project (Safe Driving Training Awareness)

3.1 Traffic Condition Survey (EIA Report of Van Phong 1 BOT Thermal Power Plant)

The transportation system of Van Phong TPP is strategically designed for seamless travel and interconnectivity, ensuring effective management, operation, and maintenance It prioritizes the supply of essential equipment and robust fire protection measures Additionally, the roads leading to the power plant are constructed to guarantee a safe connection to the external transportation network.

Transportation system outside the power plant

It is shown in Appendix H of EIA Report of Van Phong 1 BOT Thermal Power Plant includes the following main systems:

Transportation by seaway is essential for delivering most equipment and materials to the power plant The berthing system will feature a coal jetty, a general cargo jetty, and a temporary unloading ramp situated at the shoreline This strategic location, near the international seaway and to the south of Van Phong Bay, offers deep sea access, facilitating efficient maritime transport to the power plant.

A new provincial road, 1B, has been constructed by the management board of Van Phong Economic Zone under the direction of Khanh Hoa province's People's Committee This 6.9 km road begins at the Hyundai-Vinashin shipyard and runs parallel to the southwestern boundary of both Petrolimex’s refinery and power plant, providing access to the Ninh Tinh area The power plant's main and sub gates will connect directly to this newly constructed roadway.

The layout of the power plant is oriented in a North West to South East direction, featuring primary roads that connect key components of the facility Access to external transportation is facilitated through a main gate and a secondary gate, ensuring efficient movement in and out of the site.

Van Phong 1 BOT Power Plant internal roads will be made using asphalt concrete The transportation system inside the power plant is divided into the three following road types:

The power plant features primary roads that encircle the main power blocks and coal stockpiles, with a typical width of 8 meters and a total length of approximately 5,340 meters Additionally, the access road leading from the main gate to the turbine house is designed to be 10 meters wide and spans around 870 meters in length.

- Type 2: including roads surrounding the boundary of the power plant and they are connected to auxiliary areas and road type 1 Their width is 6m and total length is about 6,500m

Type 3 roads in the switchyard and access areas of the plant are approximately 4m to 5m wide and total 1,740m in length Each road features a minimum pavement width of 1-2m, with roadsides equipped with rainwater pits and drainage piles that link to the power plant's central drainage system These roads are engineered to support a vehicle frequency of at least 150 trips per day.

No person shall operate any vehicle on the project site unless:

 The person is the holder of a current driver’s license or current international license of the appropriate class Expatriates shall obtain a local driver’s license at the first available opportunity

A driving permit has been granted to the individual, detailing the specific type of equipment they are authorized to operate and the designated areas where this equipment can be used.

Circular 14/2014/TT-BXD National Technical Regulations Safety in Construction

At Site: Speed limit was established on a maximum 20 km/h

All drivers must adhere to the posted speed limits while also adjusting their speed to ensure safety based on current road conditions and circumstances.

 Conditions such as fog, dust, rain, slippery roads etc., must be taken into account and speeds should be reduced accordingly

 There may be other situations for example near the workshop areas where reduced speed limits apply

Traffic signs will be installed following traffic safety regulations, including speed limits, directional signs, slow down warnings, and stop signs, in accordance with Circular 14/2014/TT-BXD National Technical Standards.

 Caution is required for areas where personnel, animals and wildlife are present

 On intersections, left or right turns, vehicles should reduce speed accordingly or stop if necessary

 Flagman will be assigned on busy intersections or road to ensure traffic will be managed

Doosan will implement global speed limits and enhance road safety by providing clear signage, flagmen, and defensive driving training for all drivers The company will also conduct regular checks of driver’s licenses and consistently monitor safety and security measures to ensure strict adherence to road regulations.

At Villages and Towns (Community):

 30 km/h – Speed limit when passing through villages and towns (specially Road 1B)

 60 km/h – On highway for vehicles

 Lookout for Pedestrians – Be extra cautious when driving through school area, market, residential, etc

 Avoid Excessive Horning – Only use horn when necessary avoid continuous horning

 Don’t Litter – Do not throw any waste outside

 ookout for Domestic Animals – Be extra cautious when driving for sudden crossing of animals such dogs, cats, cow, and others

 No Overtaking – Avoid overtaking on other vehicle due to narrow road

A person shall not enter or remain at a mine if he/she is:

 Under the influence of alcohol or a drug

 Suffering from any physical or mental condition, to the extent that he is thereby prevented from performing his duties in a safe manner

 A driver shall keep his vehicle as close as practicable to the correct side of any road or ramp

 Under unusual conditions special traffic arrangements may be made at the discretion of the Site Manager or an official appointed by him

 A driver shall not under any circumstances enter any area displaying a “Closed” sign

 The driver shall ensure the vehicle is in a safe working condition before starting the vehicle

Light vehicles may overtake other vehicles provided:

 It is safe to overtake and the speed limit is not exceeded

 There is sufficient visibility to ensure there is no oncoming traffic

 Extra precautions are required when overtaking graders and other slow moving equipment Signal intentions well in advance before passing

 Water trucks do not have sprays in operation

 The vehicles are not approaching any road intersection or junction

Heavy vehicles shall not overtake other vehicles except in the following circumstances:

 Overtaking an operating grader or roller

 Overtaking a broken down vehicle The operator or driver of this vehicle must assist with traffic control for the safe passing of his vehicle

All rubber tired vehicles, if in a position to be overtaken shall pull to the left of the haul road and slow down This indicates that they may be overtaken

In the above three overtaking exceptions, the operator of the overtaking vehicle is responsible for the safe completion of the maneuver

Vehicles making U – turns must obey the following procedure:

 Pull to the correct side of the road and stop

 Ensure no traffic is following or approaching for a distance of 300 meters

 Indicate your intention by use of the indicators

 Make U – turn only after ensuring the area is clear of vehicles

 The bonus for safe completion of U – turns always remains with the driver of the vehicle making the

3.7.1 Priority Traffic on Haul Roads

 Vehicles entering haul roads will give way to all vehicles proceeding in either direction along the haul road

 All vehicles will give way to emergency vehicles displaying a flashing light

A driver with the right of way must prioritize safety over their entitlement, choosing to yield if it prevents a collision and protects themselves and others.

3.8 Parking and Standing of Vehicles

For safe parking of any vehicle, it's essential to ensure that it won't move when the park brake is released and the vehicle is out of gear Before confirming the suitability of a parking area, conduct this test If satisfied with the chosen location, firmly engage the park brake and lower all hydraulic attachments to the ground before exiting the vehicle.

In situations where the perfect parking scenario is unattainable, adopting a 'defensive' parking position is crucial This approach minimizes the travel distance of an uncontrolled vehicle, such as by turning the steering wheel into a berm.

 Do not park or stand a vehicle in a position that will endanger other traffic

 Reverse Parking applied at Site

 See Appendix G Plant Layout Site Route and Parking Area (Layout will be updated on a timely manner depending on construction progress)

Before loading and unloading cargo, ships and boats must be securely anchored This process should be overseen by the captain or their authorized representatives, as outlined in Circular 14/2014/TT-BXD, which establishes the National Technical Regulations for Safety in Construction.

 Bridges for loading and unloading of ships and boats must not slope more than 30 ° and must have a horizontal brace (Circular 14/2014/TT-BXD National Technical Regulations Safety in Construction)

LSA Rescue Boat Requirement

LSA-Code International Life-saving appliance Code

(MSC.48(66)) https://puc.overheid.nl/nsi/doc/PUC_2393_14/5/

All rescue boats must adhere to the specifications outlined in paragraphs 4.4.1 to 4.4.7.4, along with sections 4.4.7.6, 4.4.7.7, 4.4.7.9, 4.4.7.10, and 4.4.9, unless otherwise stated A lifeboat can be approved as a rescue boat if it fulfills the criteria set forth in this section, successfully passes the required testing per regulation III/4.2, and has stowage, launching, and recovery systems on the ship that comply with all rescue boat requirements.

Rescue boats may have buoyant material installed externally to the hull, as long as it is sufficiently protected from damage and can endure the specified exposure conditions.

5.1.1.3 Rescue boats may be either of rigid or inflated construction or a combination of both and shall:

1 be not less than 3.8 m and not more than 8.5 m in length; and

The vessel must accommodate at least five seated individuals and one person on a stretcher While seating arrangements can be placed on the floor, excluding the helmsman, they must adhere to the seating space analysis outlined in paragraph 4.4.2.2.2, utilizing shapes similar to figure 1 but modified to an overall length of 1190 mm for extended legroom Additionally, no part of the seating area is permitted on the gunwale, transom, or inflated buoyancy along the boat's sides.

5.1.1.4 Rescue boats which are a combination of rigid and inflated construction shall comply with the appropriate requirements of this section to the satisfaction of the Administration

5.1.1.5 Unless the rescue boat has adequate sheer, it shall be provided with a bow cover extending for not less than 15% of its length

5.1.1.6 Rescue boats shall be capable of manoeuvring at a speed of at least 6 knots and maintaining that speed for a period of at least 4 h

Rescue boats must possess adequate mobility and maneuverability in maritime conditions to effectively retrieve individuals from the water, manage liferafts, and tow the largest liferaft on board when fully loaded with personnel and equipment, achieving a minimum speed of 2 knots.

Rescue boats must be equipped with either an inboard engine or an outboard motor, with the option for the rudder and tiller to be integrated into the engine if an outboard motor is used Additionally, petrol-driven outboard engines can be installed in rescue boats, provided they have an approved fuel system and the fuel tanks are adequately protected against fire and explosion hazards.

5.1.1.9 Arrangements for towing shall be permanently fitted in rescue boats and shall be sufficiently strong to marshal or tow liferafts as required by paragraph 5.1.1.7

5.1.1.10 Unless expressly provided otherwise, every rescue boat shall be provided with effective means of bailing or be automatically self-bailing

5.1.1.11 Rescue boats shall be fitted with weathertight stowage for small items of equipment

All rescue boats must adhere to specific requirements outlined in paragraphs 4.4.1 to 4.4.7.4, with certain exceptions Notably, an average mass of 82.5 kg applies to paragraph 4.4.2.2.1 for all rescue boats A lifeboat can be approved for use as a rescue boat if it fulfills all relevant criteria, successfully passes the required testing under regulation III/4.2, and complies with the necessary stowage, launching, and recovery arrangements on the ship.

Every rescue boat must be designed to ensure clear visibility from the control and steering position, allowing for safe launching and maneuvering This includes an unobstructed view forward, aft, and to both sides, which is crucial for spotting areas and crew members during man-overboard retrieval and the marshalling of survival craft.

All rescue boat equipment, except for boat-hooks which must remain accessible for fending off, should be securely stored within the boat using lashings, lockers, brackets, or other appropriate methods This storage must not hinder any launching or recovery procedures Additionally, all equipment should be compact and lightweight, ensuring efficient packing and ease of handling.

5.1.2.2 The normal equipment of every rescue boat shall consist of:

To ensure effective navigation in calm seas, it is essential to have an adequate number of buoyant oars or paddles Each oar must be supported by thole pins, crutches, or similar arrangements, which should be securely attached to the boat using lanyards or chains.

3 a binnacle containing an efficient compass which is luminous or provided with suitable means of illumination;

4 a sea-anchor and tripping line if fitted with a hawser of adequate strength not less than 10 m in length;

5 a painter of sufficient length and strength, attached to the release device complying with the requirements of paragraph 4.4.7.7 and placed at the forward end of the rescue boat;

6 one buoyant line, not less than 50 m in length, of sufficient strength to tow a liferaft as required by paragraph 5.1.1.7;

7 one waterproof electric torch suitable for Morse signalling, together with one spare set of batteries and one spare bulb in a waterproof container;

8 one whistle or equivalent sound signal;

9 a first-aid outfit in a waterproof case capable of being closed tightly after use;

10 two buoyant rescue quoits, attached to not less than 30 m of buoyant line;

11 a searchlight with a horizontal and vertical sector of at least 6 degrees and a measured luminous intensity of

2500 cd which can work continuously for not less than 3 h;

Thermal protective aids must meet the specifications outlined in section 2.5 and should be available for at least 10% of the rescue boat's capacity or a minimum of two, whichever amount is greater.

14 portable fire-extinguishing equipment of an approved type suitable for extinguishing oil fires.*

5.1.2.3 In addition to the equipment required by paragraph 5.1.2.2, the normal equipment of every rigid rescue boat shall include:

5.1.2.4 In addition to the equipment required by paragraph 5.1.2.2, the normal equipment of every inflated rescue boat shall consist of:

3 an efficient manually operated bellows or pump;

4 a repair kit in a suitable container for repairing punctures; and

* Refer to the Revised Guidelines for Marine Portable Fire Extinguishers, adopted by the Organization by resolution

5.1.3 Additional requirements for inflated rescue boats

5.1.3.1 The requirements of paragraphs 4.4.1.4 and 4.4.1.6 do not apply to inflated rescue boats

5.1.3.2 An inflated rescue boat shall be constructed in such a way that, when suspended by its bridle or lifting hook:

1 it is of sufficient strength and rigidity to enable it to be lowered and recovered with its full complement of persons and equipment;

The structure is designed to support a load four times greater than the total weight of its maximum occupancy and equipment, operating at an ambient temperature of 20 ± 3 degrees Celsius, even with all relief valves non-functional.

The structure is designed to endure a load 1.1 times greater than the total weight of its full capacity of occupants and equipment, even in ambient temperatures as low as -30 degrees Celsius, provided that all relief valves are functioning properly.

5.1.3.3 Inflated rescue boats shall be so constructed as to be capable of withstanding exposure:

1 when stowed on an open deck on a ship at sea;

2 for 30 days afloat in all sea conditions

5.1.3.4 In addition to complying with the requirements of paragraph 4.4.9, inflated rescue boats shall be marked with a serial number, the maker's name or trade mark and the date of manufacture

An inflated rescue boat must achieve buoyancy through either a single tube divided into at least five equal compartments or two separate tubes, each not exceeding 60% of the total volume The arrangement of these buoyancy tubes must ensure that the intact compartments can support the maximum number of occupants allowed, each weighing 75 kg, while seated normally, maintaining positive freeboard around the entire perimeter of the boat.

1 with the forward buoyancy compartment deflated;

2 with the entire buoyancy on one side of the rescue boat deflated; and

3 with the entire buoyancy on one side and the bow compartment deflated

The buoyancy tubes of the inflated rescue boat must provide a minimum volume of 0.17 m³ for each person the boat is designed to accommodate upon inflation.

5.1.3.7 Each buoyancy compartment shall be fitted with a nonreturn valve for manual inflation and means for deflation

A safety relief valve shall also be fitted unless the Administration is satisfied that such an appliance is unnecessary

5.1.3.8 Underneath the bottom and on vulnerable places on the outside of the inflated rescue boat, rubbing strips shall be provided to the satisfaction of the Administration

5.1.3.9 Where a transom is fitted it shall not be inset by more than 20% of the overall length of the rescue boat

5.1.3.10 Suitable patches shall be provided for securing the painters fore and aft and the becketed lifelines inside and outside the boat

5.1.3.11 The inflated rescue boat shall be maintained at all times in a fully inflated condition

5.1.3 Additional requirements for inflated rescue boats

5.1.3.1 The requirements of paragraphs 4.4.1.4 and 4.4.1.6 do not apply to inflated rescue boats

5.1.3.2 An inflated rescue boat shall be constructed in such a way that, when suspended by its bridle or lifting hook:

1 it is of sufficient strength and rigidity to enable it to be lowered and recovered with its full complement of persons and equipment;

The structure is designed to support a load four times greater than the combined weight of its maximum occupancy and equipment, even at an ambient temperature of 20 ± 3 degrees Celsius, with all relief valves non-functional.

Tiêu đề	Method Statements For Dredging Works
Trường học	Van Phong
Chuyên ngành	Thermal Power Plant Project
Thể loại	For Approval
Năm xuất bản	2020
Thành phố	N/A

Định dạng
Số trang	113
Dung lượng	9,32 MB