Ten issues to be noted in the construction of integrated wiring applications

General contractors and construction managers are generally not experts in telecommunication cables, nor can they take into account the best interests of the landlord and various related groups, including: end users, information systems departments, cable system designers and architects.

The following instructions help facility managers ensure that effective telecommunications cables are installed in their facilities.

1. Cable system can not meet the needs of users

In the design stage, the needs of information system users are not fully considered, and sometimes the situation is worse, that is, their needs are excluded from the collected user needs information at the beginning. As a result, users will have trouble when they need to dial-up or log in. Sometimes cable trunks connecting telephones and computers to buildings can be guaranteed, however, other building systems or equipment-such as fax machines, clocks, security and fire alarm systems, elevators, property department systems, and other things, It is often overlooked. If this happens, you can compile a detailed checklist of information systems and equipment and provide it to each department head before the system is designed to allow them to participate in the supplement. In this way, you can avoid the above situation.

This step does not guarantee that the problem will not occur again. As the business volume grows and the nature of the business changes, the use needs of employees will change, and the employee's office location will be adjusted within or between departments, and the department will also change the layout. Cable facilities should be designed to meet these conditions, and the best way is to plan a universal cable facility suitable for all equipment. Unused spaces should also be laid with cables for future use. The cable facilities in each workshop should be able to meet the needs of any user. For example, the setting of a workstation should not only meet the needs of financial personnel using a telephone and a PC connected to the local network, but also meet the needs of developers using telephones, modems, PCs with Internet access and shared printers. need.

2. The installed system is over budget

The reason why the cost overrun is very common is that the landlord and the facility supervisor have not provided enough work scope for the weak current contractor. The contractor ’s valuation is generally based on a fixed and fully specified scope of work, and various specific tasks are also included in this scope of work. If these tasks are not included in the scope of work, when the contractor makes a quotation for these jobs, cost overruns will occur. Failure to clarify user requirements at the design stage will also lead to cost overruns.

Another reason for the over budget of construction budgets and additional labor costs includes underestimating the price of products required to meet the needs of users, the extension of building construction periods, changes in building structure and installation time of other equipment vendors, etc. . These and other problems can be avoided by getting some advice from people in the cable industry who understand the product, selling price, and installation matters.

3. The building structure is not fully suitable for the type and number of communication cables to be installed

The pre-built cable distribution structure in the building does not match the actual cable facilities to be used, which will cause great delay in construction period and cost increase. Architects and electrical engineering companies are generally unfamiliar with the 5 types of specifications, and the design parameters set by the Telecommunications Industry Association and the Electronic Industry Association (TIA / EIA) for the cable structure in the building such as threading pipes, cable reels, and equipment rooms. . If the design does not meet the specification requirements, the result may be that the existing threading tube cannot accommodate all the cables that need to be installed, and the threading tube needs to be added; or there are too many bent parts of the threading tube and there is no connection box, which causes difficulty in cable threading and It brings some potential harm to the cable; or the use of cable reels and connection boxes, but the length of the horizontal cable exceeds the requirements of category 5.

4. The installed system does not meet the industry's category 5 specifications

Weak current contractors usually cannot guarantee that their technical staff are familiar with TIA / EIA specifications.

As a result, there will be a series of problems: beyond the limits of the specification requirements, the curvature standard of the bending when installing the extension cable exceeds the acceptable level, the incorrect grounding method, the incorrect or insufficient identification, or some other problems.

5. Material delivery delays completion of the project

Ignoring material management is also a critical mistake that affects the completion of projects on time. In addition, errors in material supply will also lead to delays in product delivery time. To avoid these problems, it is necessary to understand the product market. After obtaining the detailed information of the relevant department of the special system equipment and floor box, you can study the product, cost and delivery date.

6. The socket of the combined furniture and floor box is not suitable

The direct cause of this problem is usually due to insufficient research on the equipment and the exact specifications of the sockets on the equipment. Before placing an order, you should work closely with the equipment supplier to clearly stipulate that these communication products must meet the requirements for use.

7. Excessive change orders cause confusion at completion

When users move into an office building, they often request to modify, add or remove sockets. Therefore, these requests often require the installation of an additional backbone cable. By setting the deadline for moving, adding, and changing sockets, and implementing it resolutely, many modification orders made at completion can be avoided. Another way to reduce the impact of the change orders made at completion is to re-examine the contract when the project is halfway through and three-quarters.

8. When the equipment supplier is installing, the weak current contractor has not finished the project in time

There will be problems if the check-in date and the completion date are confused. Usually, the weak current contractor rarely contacts the facility supervisor. This lack of communication has prompted weak current contractors to only follow the general contractor ’s construction plan, which may not include a schedule sign for equipment installation work. The building information system equipment, such as telephones, computers, printers, and fax machines, must be installed before users check in.

9. The equipment vendor does not know where to install the equipment

Even if the weak current contractor completed the installation of the cable in time before the installation by the equipment supplier, the equipment supplier may not know if Where to install the equipment. Each cable exit in the workshop should be assigned a unique identifier and copied to the nearest termination location so that the equipment can be properly installed at the appropriate workstation. In order to ensure that the weak current contractor can provide these archives, it is necessary to ensure that these archives are included in the scope of work of the weak current contractor in the form of a contract.

10. The archive file of the installation system is incomplete

This problem may not appear at first, but it occurs when the information system is to be upgraded. Finding the right socket for an all-in-one computer or phone is as difficult as finding a needle in a sand pile. At the end of the cable project, all parties—including the landlord, facility supervisor, project management personnel, cable system designer, information system person in charge, and other relevant personnel—should have a meeting together to review the construction file To ensure its integrity.