Sample estimate for installation of scs. Installation of SCS for a small company occupying the entire office building. SKS jobs

Drawing up an estimate for the installation of a structured cabling system (SCS) refers to one of the most complex types of estimate calculations, the creation of which requires sufficient knowledge in the field of automation, communications and electrical installation work itself. The peculiarity of this type of calculation is that when installing LAN, SCS and telecommunication systems, a lot of modern, imported materials are used, which often have no analogues in the estimated price base. So, when drawing up an estimate for the installation of a structured cabling system (SCS), it is necessary to install cross- and patch panels, RJ sockets and accessories for cable boxes, as well as laying UTP coaxial and optical cables. The correct selection of prices for the evaluation of current non-standard solutions for launching a local computer network and other low-current work falls within the competence of a professional estimator, who must be aware of technical innovations and classical approaches in the field of SCS.

A sample estimate for low-current systems (low current), as well as calculations for the construction of a local computer network, may include prices of various types, however, the most common option is the complex use of several parts from the collection for the installation of equipment, namely the installation of electrical installations , automation and communications equipment. Calculations for the installation of a structured cable system often include such electrical installation prices as the installation of plastic boxes (TER(GESN)m 08-02-390) and cable channels, laying UTP cable in a box, laying vinyl plastic (corrugated) pipes with tightening they contain wires TER(GESN)m 08-02-409 and TER(GESN)m 08-02-412, marking of cable connections. You can read more about the use of prices for electrical installation work in cost estimates in the material on preparing estimates for electrical installation. In the same review, options for estimating the installation of low-current cable systems using prices for automation and installation of communication equipment are proposed for consideration.

The basic structure of the collection on automation (part 11 FERm / GESNm / TERM) can be represented as a complex of eight departments, composed of prices for the installation of various devices and equipment. This section opens with prices for installing structures for instruments and mechanisms. Other tables in the collection directly calculate the costs of installing automation equipment that can be installed on equipment, embedded devices: threaded and flanged connections. The third and fourth departments include prices for measuring equipment and instruments operating in production premises, with installation on switchboards, consoles and metal structures, as well as equipment for ASDU, SDAU, APCS, AIS, ESD, incl. consoles, scoreboards, screens, blocks. Section 2 of the collections on automation contains prices for cutting shielded wires and cables and their inclusion in plug connectors, and section 8 - for connecting pipes and electrical wiring to automation systems.

As an example of using prices from the collection of installation works in terms of automation, as well as electrical equipment and communications, let’s take a local estimate for the installation of SCS, where the work on installing equipment, and the electrical appliances themselves with components, are divided into two sections: installation work and materials.

Example of an estimate for low-current work (structured cabling systems)

The example of the estimate does not indicate the electrical materials and equipment installed according to the prices, since they are taken from the price lists of suppliers and can vary both in price and in electrical parameters. Let's list some materials and equipment: cable box 105x50 Legrand, corrugated pipe, UTP cable, metal cable organizer, connecting cord, sockets, RJ45 patch panel, set of accessories for the Legrand box. Passive switching equipment and other network elements that make up the structural cable subsystem are included in the estimate at supplier prices minus VAT, taking into account technical requirements. This sample estimate for SCS is not advisable to use in other calculations without making the necessary adjustments, since here is only an example or option for selecting prices for estimating low-current work.

A structured cabling system is one of the most important infrastructure elements of any modern organization. This is a single system that unites all corporate computer devices, local networks, cables, office equipment and other components.

Therefore, installation of SCS must be carried out exclusively by professionals, in accordance with all standards established at the state level. Testing is the final installation procedure and is carried out to confirm the quality of the system before putting it into operation.

In the process of testing SCS lines, ultra-precise modern technical devices are used to detect the slightest problem in the operation of the system, for its further elimination and to prevent recurrence. Specialists also study all aspects of the system’s functioning in each of the possible operating modes.

Thus, testing lines guarantees the reliability, stability and high quality of functioning of the SCS. In the event of a critical problem or emergency, specialists, based on the data obtained as a result of testing, will be able to restore the proper operation of all system components.

Based on the results of testing the lines, the client receives a guarantee for the installed system, which is valid for several decades. The system is assigned the appropriate category and its compliance with the approved requirements is confirmed.

How is the estimate for testing SCS lines prepared?

The price for testing SCS lines is determined on the basis of an estimate that includes all aspects that affect the final cost. The final cost is determined based on a number of individual criteria:

• types of work performed by specialists;
• need to test ports;
• category assigned to the system;
• number of lines;
• architecture and ramifications of the system;
• location of the object;
• building area;
• presence of readable markings;
• availability of a workplace layout.

The estimate also includes the correction of hidden and visible system deficiencies, if they are detected, and other additional operations. In the process of testing lines, it may be necessary to dial them, urgently correct problems, replace equipment, etc.

All additional operations are pre-agreed with the client and are included in the estimate only at his request. The estimate also includes testing the system under real operating conditions to detect negative environmental influences (also at the request of the client).

We offer highly qualified SCS testing, using the most modern equipment, at the best prices. Contact: 7 (499) 704–16–49.

Completing work on time and on budget. View prices for SCS. We carry out design and installation of SCS (LAN) networks in Moscow, the Moscow region and the Central Federal District. System warranty for installation of SCS (LAN) for 25 years.

After completing design work on SCS or receiving a ready-made project from the Customer (the presence of a project in most cases is mandatory both for high-quality installation of SCS and for further operation of the system), an execution plan and a project for the installation of SCS computer networks are prepared, which are strictly adhered to by the installation Department. In cases of major repair and construction work, many contractors work simultaneously on site. And coordination of work with related organizations is an important part of the work of the Flexis LLC team.

CABLE ROUTES SCS

When installing SCS networks in an office or industrial facility, SCS cable routes, being the most flexible, are adjusted to the overall ventilation, heating and even electrical routes. Very often, on projects of contractors of various engineering systems, all engineering communications are successfully placed in the ceiling space of the corridor.

But during the installation process it turns out that in fact the number of engineering systems is large, and the space in the ceiling space is small. And competent installation of SCS cable routes between ventilation, air conditioning, electrical, automation, subject to the required rules and regulations, is an important factor in the quality of the installed system and an indicator of the quality and experience of the SCS contractor.

A typical cable route solution for most facilities is as follows:

• for the main SCS subsystem of a building (between server rooms and floors, for example), an interfloor channel is organized using a ladder-type tray;
• within one floor, the main SCS route is built from a wire or perforated tray from a server cabinet, optimally laid as close as possible to the central axis of the object;
• from the tray to the socket, the cable is laid in a corrugated pipe in the ceiling space and in the wall cavity (for flush-mounted sockets), or in the ceiling space and then along the wall in a cable channel.

JOBS SCS

When installing SCS (laying a LAN), the largest amount of work and materials falls on horizontal subsystem SCS. This is a point-to-point connection, each port of the patch panel to each port (outlet) on the workstation. Separate continuous cable. No breaks, no twists/adhesions/joints. All these installation tricks are easy to detect SCS testing. And such a system cannot be certified and supplied with a warranty period of 25 years.

Depending on the architectural, planning and design solutions, workplaces are equipped with different types of sockets with different methods of installing SCS sockets:

• SKS hidden mounting sockets of the Valena Legrand type (most often installed in hollow walls made of plasterboard at a height of 20-25 cm from the floor);
• SKS sockets for boxes of the Mosaic Legrand type (usually installed on solid walls at the height of the desktop tabletop, or under the table, installing the box on the table itself);
• SKS sockets for external installation, not the most aesthetically pleasing, but perhaps the cheapest option;
• hatches and columns for open spaces.

There is no fundamental qualitative difference between the types of sockets, and the choice is most often determined by the practicality of the solution at a particular site and the wishes of the Customer.

SCS QUALITY

In addition to such obvious characteristics as the quality of design solutions, materials and equipment used, and installation work, a high-quality structured cabling system (SCS) is distinguished by the ability to scale the system without new significant costs. The ability to work with applications and perform business tasks not only today, but also tomorrow.

Price SKS (price)

The table below shows prices for basic installation work for SCS (a short price list with prices per unit of measurement). The complex cost of installation of SCS on site largely depends on the cost of materials, which is determined by the selected vendor (manufacturer) and the required category of SCS.

The indicated prices are basic and may vary up or down, depending on the area of ​​the facility, the complexity of the work and the terms of payment under the contract.

*prices updated as of December 2019, incl. VAT 20%

* Prices are given for work conditions at a height of no more than 3 meters and a temperature not lower than +5 degrees.

* Prices are reduced for large volumes of work by an appropriate factor in the form of a percentage discount.

* To receive a final commercial offer for your facility, a specialist will be required to visit the work site or provide design documentation.

Technical task:Creation of a local network for 18 workplaces in office premises. Ceiling height 2500mm. Wall material – brick, thickness up to 300mm. There is a suspended ceiling in the corridor, the distance from the suspended ceiling to the ceiling is 100mm. Installation of sockets should be carried out at a distance of 300 mm from the floor. Server and crossover equipment installed.

Rationale for the use of materials:The distance from the suspended ceiling to the ceiling of 100 mm does not allow the installation of metal trays; we lay the cable in a PVC pipe (the requirements of GOST R 53246-2008 prohibit laying the cable directly on the panels or supporting frame of the false ceiling). The cable is laid in cable channel 40 x 20, providing a fill factor of 50% in accordance with GOST 53246-2008. The cable channel is laid along the perimeter of the room due to the significant rotation of workplaces in office premises; this solution will allow new workplaces to be added in a short time. Cable UTP 5 e calculated based on the length of the cable channel, vertical descent to the communication socket of 2000 mm and a reserve of 3000 mm in the telecommunications distribution cabinet in accordance with GOST 53246-2008.

Fig.1Floor plan with the location of workstations, server and cross-connect equipment

Price: 26,690 rubles, approximate estimate is attached below

The prices given for installation of cable systems are approximate. The cost of services is determined individually in each case..

Initial data for drawing up design and estimate documentation :