BIỆN PHÁP BỌC CÁCH NHIỆT ỐNG GIÓ VÀ ỐNG NƯỚC
Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (2.67 MB, 41 trang )
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
----------------------------------------------------------------------------------------------------------------------------------------------
METHOD STATEMENT
FOR MVAC DUCT & PIPE INSULATION
Prepare by :
SUB CONTRACTOR
NAME: Hong Soon
Min
DATE : 11-April-2015
Submission Ref. :PSC-HK-MS-M-0006. Rev-00
Checked by :
Approved by :
Consulted by:
POSCO
NAME:
POSCO
NAME:
NAME:
DATE :
DATE :
DATE :
Date: 08-April-15
Revision: Rev-00
MVAC Services
Page 1
HKL
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
----------------------------------------------------------------------------------------------------------------------------------------------
Table of Contents
1.
INTRODUCTION
1.1
1.2
1.3
2.
.............................................................................................................................................3
Purpose ...................................................................................................................................................3
Scope ......................................................................................................................................................3
Exclusions ...............................................................................................................................................3
GENERAL
.................................................................................................................................................3
2.1
Program....................................................................................................................................................3
2.2 Location Address..................................................................................................................................3
2.3
Approvals................................................................................................................................................3
2.4 Labor resources......................................................................................................................................4
2.5 Communications ...................................................................................................................................4
2.6 Site Resources Required........................................................................................................................4
2.7 Temporary material.................................................................................................................................4
2.8
Protection................................................................................................................................................4
2.9
Equipment/Tools....................................................................................................................................5
2.10 Hot works.............................................................................................................................................6
2.11 Confined space works.........................................................................................................................6
2.12 Emergency & Safety Equipment.........................................................................................................6
2.13 Materials required for installation..........................................................................................................8
2.14 Schedule of drawings..........................................................................................................................9
2.15 Schedule of inspection........................................................................................................................9
2.16
Attendees............................................................................................................................................9
2.17 Safety Briefing.....................................................................................................................................9
2.18 Mitigation of Risk.................................................................................................................................10
3.
Actual
Works
Method
Statement.............................................................................................................11
3.1 Delivery and Store.................................................................................................................................11
3.2 Installation (PIPE)...............................................................................................................................11
3.3 Jointing of piping ..................................................................................................................................20
3.4 Welding .............................................................................................................................................21
3.5 Setting to work.......................................................................................................................................24
3.6 Testing..................................................................................................................................................24
3.7 T&C Register........................................................................................................................................24
3.8 Reports................................................................................................................................................25
4.
Appendix..................................................................................................................................................27
4.1 Certificate of calibration ........................................................................................................................27
4.2 Instrument catalogue and manual book.................................................................................................27
4.3 Certificate of welding ………………….................................................................................................29
MVAC Services
Page 2
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------1. INTRODUCTION
1.1 Purpose
The purpose of this Method statement is to bring the requirements from the technical specifications, drawings
together in one convenient document for reference by the drafters, factory, site installers, QA/QC and all parties who
are concerned with the project. And this methodology to be followed for the insulation of the Duct Work and Air
Conditioning System Pipe Work.
1.2 Scope
This is applicable to the insulation of all chilled water pipe, condensate water pipe and duct as set out in the project
technical brief and the approved drawing
1.3 Exclusions
Not application.
2. GENERAL
2.1 Program
2.1.1 Ensure that the shop drawing used for the references at site is approved for construction.
2.1.2 Ensure that designated manpower to conduct works at site must be properly trained and well oriented by the
safety engineer.
2.1.3 All equipments, tools and mobile scaffolding to be used must be inspected and approved by authorized safety
engineer at site.
2.1.4 All staffs associated with the works shall be sufficiently experienced.
2.1.5 When the workers climb up the working platform, ladder, his hands must be free.
2.1.6 All materials to be used at site must be properly secured and clean.
2.1.7 Working period to base on civil work and piping installation schedule which will be attached after getting
approval (Waiting for approval).
2.2 LOCATION – ADDRESS
Application for Basement 3 and all high floors.
2.3 APPROVALS
Materials of submission (Waiting for submission & approval).
Shop drawing (Waiting for submission & approval).
MVAC Services
Page 3
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
----------------------------------------------------------------------------------------------------------------------------------------------
2.4 LABOUR RESOURCES
The pipe team will coordinate and carry out as below organization chart
2.5 Communications
Office mobile phone or walkie-talkie will be used during working time.
2.6 SITE RESOURCES REQUIRED
Temporary fire protection equipment.
Site electric panel should be needed as site condition.
2.7 TEMPORARY MATERIALS
Materials cover needs to be prepared on the floor and cover pipe when needed.
2.8 PROTECTION
Materials cover needs to be prepared on the floor and cover pipe when needed.
MVAC Services
Page 4
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
----------------------------------------------------------------------------------------------------------------------------------------------
2.9 EQUIPMENT/TOOLS
Ensure the availability of equipment and tools provision for Duct and AC Piping insulation works as follows:
1. Tape measure
or folding rule
2. Chalk
3. Silver ink marker pen
4. Long blade knife
5. Short blade knife
6. Clean rug and cloth
7. Tee square
8. Scissors
9. Large divider
10. Calipers
11. Mitre box
cutting angles
13. Whetstone (knife
sharpener)
for
12. Caution Tape
14. Brush with short firm
bristles
2.10 HOT WORKS
Not application.
MVAC Services
Page 5
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------2.11 CONFINED SPACE WORKS
Not application.
2.12 EMERGENCY & SAFETY EQUIPMENT
1) Safety helmet
2) Safety shoes
3) Safety uniform
4) Hand gloves
MVAC Services
Page 6
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------2.13 MATERIALS REQUIRED FOR INSULATION
Insulation materials as Insulation sheet, Insulation tube, Insulation glue, Insulation tape.
1. Insulation sheet
2. Insulation tube
3. Insulation glue
4. Canvas sheet
5. Insulation tape
2.14 SCHEDULE OF DRAWINGS
Refer to shop drawing layout of floors as below:
2.15 SCHEDULE OF INSPECTION/T&C FORM
Refer to ITP form as the attached file in below.
2.16 ATTENDEES
2.16.1 Sub-contractor manager.
2.16.2 Sub-contractor site manager.
2.16.3 Main contractor MEP coordinator.
MVAC Services
Page 7
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------2.16.4 Main contractor mechanical engineer.
2.16.5 HKL M&E manager.
2.17 SAFETY BRIEFING
2.17.1 Safety shall be in first priority during construction, safety staff shall be present on site all the time to
supervise and to remind workers to observe safety requirement. Stop work order shall enforce once its dose not meet
the safety requirements.
2.17.2 Safety shall conform strictly observed. All workers and staff on site shall be oriented of safety requirements.
All safety equipment such as cloths , shoes, helmet , gloves , safety belt should provide and regularly checked during
construction.
2.17.3 The engineer shall inspect all subcontractor tools prior to be used on site.
2.17.4 Safety Supervisor shall be present for all the safety site inspection.
2.17.5 For the safety of worker, grounding wire for the electric ARC process must be provided and wet cloths,
protective glasses, long sleeve cloth must be imposed to worker.
2.17.6 Fire extinguisher shall be provided at welding area and safety provision must done to ensure usage
workability.
2.17.7 Safety working with Scaffolding
2.17.7-1 All scaffolds must be erected under the supervision of a competent and experienced person- usually the
construction superintendent. This includes moving scaffolds from one position to another. Each leg of a scaffold
must be supported by and adequate footing. Loose bards, bricks and other material do not provide a safe, adequate
base.
2.17.7-2 Where the working platform in more than 10 feet off the ground, the scaffold shall have guardrails
installed.
2.17.7-3 If people are working under the scaffold, toe boards must be used to prevent tools and materials from
falling on them.
2.17.7-4 Workers are not to climb the metal tubular frame of the scaffold to get the working platform. Other, safer
means of access must be used – a ladder or access from the building.
2.17.8 Safety working with Mobile Scaffold
2.17.9 Mobile scaffolds have restricted reach unless a guy wire secures them. They are more susceptible to
overturning and require a smooth, level working surface. A complete guardrail system must be used at elevations
above 10 feet and shall be used at all working levels. Scaffold should be moved when unoccupied and only by
pushing from the base. Wheel brakes must be set when scaffold is in use.
MVAC Services
Page 8
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------2.18 MITIGATION OF RISK
Impact damage during pouring of concrete installation to be monitored constancy white concrete is poured. Correct
connections or materials, ensure the final installation and connections are inspected and signed off with
photographic records by MEP coordinator on site M&E staff from contractor, architect and client.
3. ACTUAL WORKS METHOD STATEMENT
3.1 Delivery and store
Insulation sheet & Insulation tube materials arrived to site shall be inspected and stored according to manufacturer
recommendations. Materials shall be stored in the covered and dry space. During the receiving materials of
Insulation, manpower shall be used to make Insulation. The Insulation and accessories shall be protected and
covered
with
MVAC Services
polythene
sheets
before
insulating.
Page 9
Materials
of
Insulation
is
as
table
below
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------3.2 DUCT & PIPE WORK INSULATION METHODOLOGY
3.2.1 Cutting insulation tube
How to cut Insulation tube
MVAC Services
Page 10
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------3.2.2 Pipe insulation with self-adhesive insulation tube
MVAC Services
Page 11
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
----------------------------------------------------------------------------------------------------------------------------------------------
3.2.3 Angles in crewed pipe joints-option 1
MVAC Services
Page 12
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------3.2.4 Angles in crewed pipe joints-option 2
MVAC Services
Page 13
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------3.2.5 Insulating large pipes with insulation sheet
MVAC Services
Page 14
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------3.2.6 Flanges using insulation sheet
MVAC Services
Page 15
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
----------------------------------------------------------------------------------------------------------------------------------------------
MVAC Services
Page 16
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------3.2.7 Bend angle using insulation tube
3.2.7.1 Bend with 90° angle using insulation tube
3.2.7.2 Bend with 45° angle using insulation tube
MVAC Services
Page 17
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------3.2.7.3 Segment bend with 1 middle part using insulation tube – 2+1
3.2.7.4 Segment bend with 3 middle parts using insulation tube – 2+3
MVAC Services
Page 18
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------3.2.8 T-piece using insulation tube
3.2.9 Angle T-piece using insulation tube
MVAC Services
Page 19
PROJECT: EXCHANGE SQUARE (STREET 106 SITE)
TITLE OF WORK: METHOD STATEMENT MVAC
11. APRIL. 2015
FOR DUCT & PIPE INSULATION
---------------------------------------------------------------------------------------------------------------------------------------------3.2.10 Cross piece joint using insulation tube
3.2.11 Pipe reducer using insulation tube
MVAC Services
Page 20
