6.1 Overview of bidding for integrated wiring system engineering
Definition: Refers to the process of the owner's review, evaluation and selection of bidders who voluntarily participate in the project. After the owner has clarified the construction site, scale, capacity, quality requirements and project progress of the project, he will invite the public to open bids or invite bids, and the contractor will invest according to the needs of the owner.
6.2 Bidding for engineering projects
6.2.1 Method of bidding
Classification: open bidding and invitation bidding.
In public bidding, the bidding unit publishes bidding advertisements. As long as the interested contractors can purchase the bidding documents, participate in the qualification review and carry out the bidding work, the bidding workload is large and complicated, and is more suitable for large-scale projects.
Inviting bidding is mainly based on the owner's understanding of the market, and issuing bid invitations to more than three capable enterprises.
6.2.2 Bidding procedures (6 steps)
1. Reporting of construction projects; 2． Preparation of bidding documents; 3. Pre-qualification of bidders; 4. Issue tender documents; 5. Bid opening, bid evaluation and calibration; 6． signing the contract;
6.2.3 Problems that should be paid attention to when selecting a network wiring scheme
1. Selection of bidding objects
2. The choice of price
3. Product selection
4. Choose the right technology
(1) Select the applicable technology.
(2) Choose mature advanced technology.
5. Choice of network wiring system scheme
The following points should generally be noted:
(1) Whether the function meets the current needs of the user unit.
(2) Is there room for development and expansion?
(3) When the system is upgraded, is the current investment still valid?
(4) Whether the wiring system structure is reasonable.
(5) Whether the technology adopted by the wiring system is advanced and mature.
(6) What is the quality, price, performance / price ratio of the selected equipment?
6.3 Bidding for engineering projects
6.3.1 Overview
1. Bidders and their conditions
Bidder: a legal person or other organization that participates in bidding competitions in response to tenders.
(1) The bidder shall meet the stipulated qualification conditions, and the certification documents shall be effective after being stamped with the original or the bidding unit. The specific contents may include the following:
â— Business license of corporate legal person of the bidding unit; â— System integration authorization certificate; â— Special engineering design certificate; â— Construction qualification certificate; â— ISO 9000 series quality assurance system certification certificate; â— High-tech enterprise qualification certificate; â— Financial review issued by financial institution Report; â— Distribution or agency certificate authorized by the product manufacturer; â— Certificate of product identification and network access.
(2) The bidder shall prepare the bidding documents according to the specific requirements of the bidding documents and make a substantial response.
(3) The bid documents shall be delivered to the bid location before the deadline for submission of bid documents, and the submitted bid documents may be modified, supplemented or withdrawn before the deadline.
(4) Two or more legal persons may form a consortium and jointly bid as a bidder.
2. Bidding organization
The organization of project bidding should be carried out by specialized agencies and personnel, and its composition may include the person in charge of the project, professionals in management, technology, and construction. The bidder shall fully reflect the organization and management level of technology, experience, strength and credibility.
3. Joint contracting of projects
Larger and technically complex projects can be jointly contracted by several engineering companies, which should reflect the advantages of strong integration and make good coordination and planning.
6.3.2 Bidding procedures and content
The content of the bid may include all the work from filling out the prequalification form to delivering the formal bid documents to the owner, mainly including the following work.
1. On-site inspection of engineering projects
On-site inspections should focus on investigating and understanding the following:
(1) Construction of the building; (2) Construction site and surrounding environment, electricity, etc .; (3) Relationship between this project and other projects; (4) Accommodation and processing conditions near the construction site.
2. Analyze the bidding documents, check the engineering volume, and prepare the construction plan
(1) The bidding documents are the main basis for bidding, and the following aspects should be considered when studying the bidding documents:
â— What bidders need to know; â— Contract conditions; â— Design drawings; â— Engineering quantities.
(2) The engineering quantity is determined. The bidder approves the project volume according to the project scale, and makes inquiry and market survey, which has a great impact on the total cost of the project.
(3) Prepare construction plan. It generally includes the construction plan and construction method, construction schedule, and labor plan. The principle is to reduce costs and increase profits on the premise of ensuring the quality and duration of the project.
3. Engineering bid quotation
The quotation shall be analyzed for unit price, profit and cost, and a fixed amount shall be selected to determine the rate. The bidding quotation should be taken at a moderate level, and generally the level of the integrated wiring system, the grade of the product and the amount of configuration should be considered. The engineering quotation may include the following aspects:
(1) The price of equipment and main materials: calculated according to the equipment list. (2) Engineering installation, commissioning and testing fee: determined according to the relevant budget quota.
(3) Other engineering fees: including total contract fee, design fee, training fee, etc. (4) Preparation fee.
(5) Preferential prices. (6) The total project price.
4. Preparation of bid documents
The bid documents should be prepared in full accordance with the requirements of the bid documents, generally without any additional conditions, otherwise the bid will be void.
1) Composition of bidding documents
â— Bid; â— Bid attachment; â— Bid deposit; â— Qualification certificate of legal representative; â— Power of attorney; â— Bill of quantities and quotation form with price tag; â— Construction plan; â— Qualification review form; â— Bidding documents Confirmation and response of the contents of the contract agreement clauses in â—; Other materials submitted in accordance with the provisions of the bidding documents.
2) Technical solution
The bidding document generally includes the business part and the technical plan part, and special attention should be paid to the description of the technical plan. The technical plan should determine the distribution of information points according to the floor plan and system functional requirements of the building proposed in the bidding document, and the level standards to be met by the wiring system, the model specifications of the recommended products, the standards and specifications to be followed, and the installation and test requirements Other aspects should be fully considered and a more complete discussion.
System design should follow the following principles:
â— Advanced, mature and practical; â— Serviceability and convenience; â— Economic rationality; â— Standardization; â— Flexibility and openness; â— Integration and scalability.
5. Before marshaling the bidding documents, all the prepared bidding documents will be sealed and delivered to the bidding unit.
6. The bid opening unit shall open the bid according to the requirements of the bidding method and bidding procedures.
7. Bid evaluation
An expert review team composed of a tenderer generally evaluates and scores the bids. The scoring results should be signed by the members of the judges before they take effect, and then the winning contractor is selected. During the bid evaluation process, the jury asked the bidder to answer certain questions.
Since the scoring results of the bidding documents are directly related to whether the bidder can win the bid, a combination of public evaluation and anonymous scoring is generally adopted.
(1) Technical solution. (2) Construction implementation measures, construction organization and project progress. (3) After-sales service and commitment. (4) Enterprise qualification. (5) Evaluate excellent projects and performance. (6) Suggested plan. (7) Construction cost. (8) Recommended products. (9) Drawings, technical information and documents. (10) Reply. (11) Preferential conditions. (12) Owner's inspection of bidding enterprises and engineering projects.
8. Winning the bid and signing the contract
Select the winning contractor based on the scoring and evaluation results, or recommend 2 to 3 bidders based on the results of the jury's scoring. The owner will then determine the winning contractor through evaluation and evaluation, and then the construction unit will sign the contract with the contractor.
6.4 Project budget
6.4.1 Bid price
The base price is one of the manifestations of the cost of the integrated wiring installation project. It refers to the cost of the contract issued by the construction unit upon approval or entrusted by an intermediary agency with the qualification and ability to prepare the base, and approved by the agency. The base price is the expected price of the bidding project, the self-estimation and control of the cost of the bidding project by the construction unit, and the basis for judging the rationality of the bid price.
1. The role of base
(1) Make the construction unit clarify in advance its financial obligations that should be undertaken in the proposed project;
⑵ The basis for the higher authorities to verify the construction scale;
(3) The criterion for measuring the bid price of the bidding unit;
â‘· is an important criterion for evaluating bids and an important basis for selecting the winning bidder
2. Baseline content
(1) Description of the preparation of the base bid; (2) Summary table of preparation of the base bid; (3) Analysis of the amount of materials used; (4) Engineering scale, calculation of the amount of construction; (5) Detailed budget book for the base price;
3. Base price method
The base price calculation method refers to the construction cost calculation method of the construction industry: the unit price method and the comprehensive unit price method.
6.4.2 Comprehensive unit price method
1. Features of engineering quantity list quotation
(1) The quotation of the project quantity list is in the form of a comprehensive unit price, which includes the direct engineering fee, indirect engineering fee, profit and various taxes and fees that should be paid.
⑵ Project quantity list quotation requires bidders to quote based on market conditions and their own strength, and gradually implement the minimum bid winning method, thus breaking the unity and monopoly of project cost formation, showing a diversity of high and low.
(3) The quotation of the bill of quantities is legalized by contract.
2. Composition of unit price
The comprehensive unit price is composed of cost, profit and tax, including labor cost, material cost, mechanical cost, comprehensive cost, risk cost, profit, labor insurance cost, regulation fee and tax required to complete some projects of the Bureau or take special construction measures .
3. The four stages of cost control in quotation of bill of quantities
⑴ The preparation stage before the construction of the project. ⑵ Bidding stage of the project construction. ⑶ Construction project implementation stage. ⑷ Completion and settlement stage of the project.
6.4.3 Review of project budget and bid
1. Basic principles of budget review: adhere to the principles of seeking truth from facts, being objective and fair, and observing discipline and law.
2. The form of budget review: There are two forms of meeting review and single review.
3. The review steps:
⑴ Familiar with design drawings. ⑵ Understand the scope of the budget. (3) Clarify the basis of the labor cost quota adopted in the budget. ⑷ Choose the appropriate review method and review according to the corresponding content. ⑸ Comprehensively sort out the review materials, and exchange opinions with the preparation unit, and prepare and adjust the budget after finalizing the case.
6.4.4 Content of engineering materials and equipment budget
1. Engineering materials include: wire grooves, wire tubes, steel nails, electric drill bits, blades, screws and screws, line cards;
2. The equipment and budget materials table includes: work area subsystem materials and equipment tables; management subsystem materials and equipment tables; vertical subsystem materials and equipment tables; trunk subsystem materials and equipment tables; spare room materials and equipment tables; building clusters Table of system materials and equipment; summary table of system accessories, materials and equipment.LSZH cables is the abbreviation term of (low smoke halogen free) low smoke zero halogen electrical cables.FR is for flame retardant power cables, also for the short term of Fire Resistant Power Cables. The smoke released by these cables is non-toxic when fire happens. Therefore they are applicable for public places to protect instruments, equipments and people from potential harm.Fire resistant Power Cable will still keep the electrical power on within certain time in case of combustion.Flame retardant power cable may produce low gases and smoke after combustion.These cables are generally used in population-concentrated public places to have better fire safety and rescue capability.
Specification
Conductor:99.99% oxygen free copper or aluminum
Insulation/Sheath: LSZH FR formula added
Rated Voltage:≤35KV
Packaging: wooden steel drum, wooden/paper/plastic reels
Main advantage
l Low or no halogen acid gas release
l Excellent resistance to weather (-30℃ to 105℃)and fire
l Withstanding high voltage and current stressing
l Good elasticity and stickiness, long life time
Application
l High-rise building
l Hospital , Large-scale library,Gym ,Hotel
l Bus station or railway station, Airport , passenger waiting room
l Cultural heritage building, nuclear power plant,important military facilities
l Subway ,underground shopping mall
Classification
The application of LSZH power cables are classified into 4 level based on using features, fire risk and difficult for evacuation and life-saving.
|
Application |
Flame Retardant Class Choice |
|
Superior |
Class A |
|
Grade 1 |
Class B |
|
Grade 2 |
Class C |
FAQ
Q: Are you a factory or trading company?
A : We are a manufacturer. We are professional in
developing and producing electrical wires and cables since 2001.
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A :Yes! You are welcome to visit our factory for further detail check.
Our factory is located in Minqing,Fujian.You could choose to fly to Xiamen/Fuzhou International airport. And tell us your flight No. We will arrange to pick you up if you like.
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A: Yes! You are welcome to place sample order to test our superior quality and services.
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A: Yes! Our factory accepts to print your logo on the products.
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A: Yes .The order information and photos at different production stage of your order will be sent to you and the information will be updated in time.
Please welcome to get in touch with us for further information about catalogue, production and price list. Will response as soon as possible. OEM service is available based on legal authorization. And you are also very welcome to visit our factory by mutual schedule check accordingly.
LSZH FR Power Cable,Lszh Fr Sheath Power Cable,Power Station Control Cable,Low Smoke Control Cables
Smartell Technology Co.,Ltd , http://www.liencable.com