to the order of the Ministry of Construction and Housing and Communal Services of the Russian Federation
dated August 28, 2014 No. 506/pr
STATE ESTIMATED STANDARDS
INCREASED STANDARDS FOR CONSTRUCTION PRICES
NTS81-02-11-2014
Part 11. External communication networks
TECHNICAL PART
1. General instructions
1. State integrated construction price standards (hereinafter referred to as NCP), given in this collection, are intended for planning investments (capital investments), assessing the efficiency of using funds allocated for capital investments and preparing technical and economic indicators in the assignment for the design of external communication networks, construction which are financed using funds from the federal budget. 2. NCPs are calculated in 2014 prices for the base area (Moscow region). 3. Integrated standards represent the amount of funds necessary and sufficient for the construction of 1 kilometer of external communication networks and 100 m of cable crossings under roads and railways. 4. The collection provides for consolidated standards for the following nomenclature of external communication networks:- Section 1. Underground laying of cable communication lines.
- Section 2. Aerial laying of cable communication lines.
- Section 3. Crossing a cable communication line under a highway or railway tracks.
- excavation work for the construction of trenches, with backfilling and layer-by-layer compaction,
- installation work on laying cables in a trench, existing cable ducts, existing collectors;
- construction work on installing supports for aerial laying of communication lines:
- installation of direct and optical couplings;
- tests of electrical insulation strength and measurement of transient attenuation on paired cables;
- work on constructing a crossing under a highway or railway using the horizontal puncture method;
- cutting and adding soil during planning, dismantling and construction of road surfaces.
- installation of additional structures when laying communication lines in existing collectors The cost of these works is standardized according to the relevant standards of the collections GESN-2001-1 “Earthworks”, GESN-2001-27 “Highways”, GESNm-2001-10 Communication facilities
- 1.2 m - for the main cable communication line (MCCL), the main connecting cable communication line (MCCLS), optical cables on the intrazonal cable communication line (IZKLS) and on inter-exchange connecting lines of the city telephone network (GTS);
- 0.8 m - for communication cables on local (urban and rural) primary networks
- 1 section - 4.4 km in a trench;
- Section 2 - crossing a category III highway using a horizontal puncture method (40m);
- Section 3 - 8 km in the existing cable duct;
- Section 4 - passage under the railway tracks in the existing cable duct (60m);
- Section 5 - 3.5 km in a trench, in the cramped conditions of a built-up part of the city;
C = C1 + C2 + C3 + C4 + C5
WhereC - cost of building a cable line,
C1 - cost of construction of the 1st section,
C2 - cost of construction of the 2nd section,
C3 - cost of construction of the 3rd section,
C4 - cost of construction of the 4th section,
C5 - cost of construction of the 5th section;
C1 = H1 x L1, = 970.17 x 4.4 = 4,268.75 thousand rubles.
where N1 is standard 11-01-008-10,
L1 - length of 1 section of the route (4.3 km),
C2 = H2 x L2 = 441.80 x 0.4 = 176.72 thousand rubles.
where N2 is standard 11-03-001-102,
L2 - length of 2 sections of the route (40 m),
C3 = H3 x L3 = 2448.38 x 8 = 19,587.04 thousand rubles.
where N3 is standard 11-01-004-10,
L3 - length of 3 sections of the route (8 km),
C4 = H4 x L4 = 90.66 x 0.6 = 54.40 thousand rubles.
where N4 is standard 11-03-002-91,
L4 - length of 4 sections of the route (60 m),
C5 = H5 x L5 x Kst = 970.17 x 3.5 x 1.08 = 3,667.24 thousand rubles.
where N5 is standard 11-01-008-10,
L5 - length of section 5 of the route (3.5 km),
Kst - coefficient taking into account cramped working conditions,
C = 4171.31 + 106.03 + 19587.04 + 176.72 + 3667.24 = 27,754.15 thousand rubles.
The cost of constructing a cable communication line is 27,754.15 thousand rubles. excluding value added tax.construction communication cable lightning
A bill of quantities is drawn up to calculate the labor intensity for each type of work, to determine the required number of workers, machines and mechanisms, and vehicles.
The statement of quantities of work is drawn up in the form of table 5.
Calculation of the cost of a channel kilometer C, rub/(channel*km) is carried out using formula (22)
C=P/N*L (22)
Calculation of C for the number of channels involved:
С=2386341.961/5340*324=1.37 rub/(kan*km)
Calculation of C for the maximum possible number of channels:
С=2386341.961/7200*324=1.02 rub/(kan*km)
Table 5 - Estimate for the construction of the designed communication line
The name of indicators |
Total for master's degree. |
Cost of materials and equipment |
Salary |
|||
per unit change |
per unit change |
|||||
1. Cable by type |
||||||
2. Cable laying with a cable layer |
||||||
3. Laying cable in a trench |
||||||
4. Construction of telephone sewer |
||||||
5. Laying cables in the sewer |
||||||
6. Construction of crossings over roads and rivers |
one transition |
|||||
7. Installation and measurement of cables laid in sewers and soil |
||||||
8. Inflating the cable with air after installation |
amplification current |
|||||
Wage |
||||||
Payroll overhead 87% of 2 |
||||||
Total (1 + 1.87 2) = 3 |
||||||
Planned accumulation 8% from 3 |
||||||
Total according to estimate (1 + 0.08) 3 |
Conclusion
To provide 5300 PM channels between the cities of Orel - Voronezh, the project provides for:
1) cable laying KMB - 4;
2) the use of two transmission systems K - 3600;
3) at the first stage, use 5340 channels, and leave 1860 channels in reserve for further development;
4) in the city of Yelets place POU - 2;
5) place 107 NUP along the highway.
The project does not provide for protection of the cable from lightning discharges.
Bibliography
1. Mikhalev A.N., Komarov Yu.Z. Guiding telecommunication systems: guidelines for completing a course project. Ekaterinburg: UrTISI GOU VPO "SibGUTI", 2007
2. Baron D.A. Construction of cable communication structures. Directory. - M.: Radio and communication, 1988.
3. Grodnev I.I. Communication lines. - M.: Radio and communication, 1993.
4. Filatova T.P. Atlas of Russian roads - Federal State Unitary Enterprise "Omsk Cartographic Factory", 2006
5. Internet.
6. Ionov A.D. Design of cable communication lines. Textbook: Novosibirsk, 1995.
One of the main engineering systems is communication networks. They are also sometimes called low-current, because information currents pass through them, not power ones. The voltage of such networks can range from 12 to 24 V. When installing external communication networks, it is necessary to take into account the basic requirements that apply to them:
- affordable price;
- high reliability;
- scalability;
- trouble-free operation.
Before laying such engineering systems, it is necessary to correctly develop an estimate for the installation of external networks. Only specialists can calculate everything accurately and without errors, so it is best to order services for drawing up estimate documentation from them. A lot will depend on the qualifications of the contractor, so the search for an estimator must be approached as responsibly as possible.
Features of installation and cost estimates for communications
Low-current networks today make it possible to create:
- cable structured systems;
- access to the global network;
- local area networks;
- alarm systems;
- systems that control access to protected facilities;
- intercoms and much more.
When drawing up an estimate for a communication network, it is necessary to calculate all the costs of installation and other work. It could be:
- installation of metal and wire trays;
- organization of external communication channels between floors;
- carrying out commissioning works;
- connection of external and internal sockets.
All this should be entered as separate items when drawing up estimate documentation.
In addition, it is very important to draw up a design for the communication network that will be installed. The location must be indicated:
- low current relay;
- low-current shield;
- sockets and other components.
We must not forget that all commissioning work must be carried out in accordance with approved rules and standards. The same applies to calculating estimates for a communication network - everything must be calculated as accurately as possible. This can only be done in estimate bureaus, where professionals work. True, some independently carry out commissioning of equipment and calculation of estimates, but without some experience this is impossible to do.
Who can make an estimate for laying a communication network professionally and at an affordable price?
We must never forget that when laying communication networks, you need to use only high-quality equipment. This applies to:
- server cabinets;
- cross-connect equipment;
- computer and telephone sockets;
- mounting boxes and everything else.
Accordingly, all this should be taken into account when developing the budget.
The best estimators can be found on the Yudu website. Only verified performers are registered here, who are able to quickly and competently calculate the budget for installation work. Such services can be ordered at the price that the customer is able to pay. Of course, each artist has his own prices, but they are not final.
Electrical installation work uses a huge amount of cable products: wires and cables, as well as cable ducts, corrugated pipes, trays and boxes used to protect them. The largest assortment, of course, is the cable products themselves: there are thousands of product items that differ in type, brand, cross-section and purpose of the cable. In this essay, naturally, we will not be able to select prices for all types of cables and wires. Let's try to take a better look at the most popular types of cables most often used in cost estimates:
UTP twisted pair;
Fiber optic cable;
Optical cable (FOCL);
SIP wiring;
Overhead line wires and lightning protection cables;
Power cable type VVG (ng) (LS);
Control KSSP, KVVG;
Wire PV3 yellow-green for grounding.
The listed cables, especially VVG power cables, have many modifications, differing in cross-section, number of cores, inflammability, power, etc. Almost each of them can be laid in different ways: openly and hidden under wallpaper, in ceilings, trays, corrugated pipes, cable ducts. To protect cables where they pass through walls, steel sleeves are often used, which are cut from pipes with a diameter of 20-50 mm. Many power cables, adapted to environmental conditions, can be laid in a trench over a sandy base or without it. Places where cables pass through the ground are often marked with warning tape. Let's consider the option drawing up estimates for cable installation using the example of UTP and fiber optic cable (FOCL):
An example of an estimate for the installation of fiber optic cables and computer UTP
Rationale | Name | Col. | Basic Salary | EkMash | Salary Fur | Total |
TERm10-01-053-01 | Rope laying for external cable wiring | 100 m cable or wire | 56,23 | 2,63 | 0,1 | 123,82 |
Rope cost | Rope for external cable wiring | m | 0.00 | 0 | 25 | |
TERM10-06-035-03 | Optical cable laying, weight of 1 m cable up to 2 kg | 100 m cable | 275,28 | 1287,5 | 1,14 | 2326,31 |
Commercial offer for Optical cable, LSZH | Optical cable 4 fibers, LSZH | m | 0.0 | 0.0 | 30 | |
TERm10-04-089-01 | Cutting fiber optic and UTP cables with continuous insulation into SFP and RJ45 connectors | 10 cable ends | 0.00 | 134,65 | ||
TERm10-06-055-01 | Welding of fiber optic cable with number of fibers: 4 | 1 USSLK | 1250 | 8,84 | 3,53 | 1371,8 |
TERm10-01-055-02 | UTP cable laying, weight 1 m: up to 1 kg | 100 m cable | 181,49 | 87 4,2 | 0.00 | 1545,6 |
Price list for Twisted pair UTP 5E outdoor (copper) | Twisted pair UTP 5E outdoor (copper) | 1 m cable | 0.00 | 35 |
Please note that in our example, the optical cable is laid along a cable, which is very typical for outdoor installation. Thus, we came across another type of cable laying, which can also be used when drawing up estimates - this is cable wiring. Note that the work on setting up the laid fiber-optic cable lines is placed in the section of installation, not commissioning, which, however, is very typical for Part 10 “Communication Networks”. Here, installation prices are often combined with commissioning and configuration of devices, low-current networks, communication devices and telephone installations.
Another typical option that can be found in almost any estimate for electrical work is laying power wires in corrugated pipes.
Drawing up an estimate for laying power wires in a corrugated pipe
Rationale | Name | Col. | Basic Salary | EkMash | Salary Fur | Total |
TERm08-10-010-01 | Laying corrugated PVC pipes to protect wires and cables | 100 m | 112,02 | 40,77 | 0,1 | 426,28 |
TSSC-103-2408 | Flexible corrugated lightweight pipes made of self-extinguishing PVC (IP55) FL series, diameter 25 mm | 10 m | 0.00 | 0 | 23,41 | |
TERm08-02-412-02 | Pulling wires into laid pipes with a total cross-section of up to 6 mm2 | 100 m cable | 40,69 | 4,66 | 1,14 | 61,87 |
TSSC-501-8482 | Power cable with copper conductors with polyvinyl chloride insulation and sheath, flame retardant, low smoke emission, brand VVGng-LS, with the number of cores - 3 and cross section 1.5 mm2 | m | 0.0 | 0.0 | 5,52 | |
TSSC-507-2838 | Pipe clamps | 1 PC. | 0.00 | 7,4 |
Often the cable needs to be laid not in flexible corrugated pipes, but in more durable protective devices, for example, trays or cable ducts. For this purpose, the TER territorial database has other prices. Laying cables and wires in trays is especially important for external wiring. The following example of an estimate demonstrates the laying of cable products not inside the premises, but from the outside (more precisely, at the place where the cables enter the building).
An example of drawing up an estimate for external cable laying on trays with sealing and wiring and connection to devices
Rationale | Name | Col. | Basic Salary | EkMash | Salary Fur | Total |
FERm08-02-147-11 | Cable up to 35 kV on installed trays with fastening along the entire length with a weight of 1 m of cable up to 2 kg | 100 m | 166,23 | 61,33 | 0,1 | 264,17 |
FERm08-02-155-01 | Sealing passages when introducing cables into a room with sealing mass | Sealing passages when introducing cables into explosive areas with sealing mass | 3.66 | 0 | 18,73 | |
FERm08-02-160-04 | Epoxy end seal for 3-4-core cable voltage: up to 10 kV, cross-section of one core up to 185 mm2 | 1 PC. | 26,74 | 4,66 | 1,14 | 32,14 |
FERm08-03-574-07 | Wiring of devices and connection of cable cores or wires with a cross-section of up to 150 mm2 | 100 pieces. | 782,69 | 34,74 | 0.0 | 953,37 |
In the previous example of drawing up an estimate, we installed an outdoor cable in a tray and brought it into the building, sealed it and connected it to devices in the right places. Now let’s consider the option when a UTP, power VVG or control KVVG cable needs to be laid in a cable duct indoors. For this case, there are direct prices, both for laying the cable channel and for installing the wire itself. Let's look at the example below:
An example of drawing up an estimate for installing a cable in a cable duct indoors
Rationale | Name | Col. | Basic Salary | EkMash | Salary Fur | Total |
TERm08-02-390-03 | Lining of plastic boxes up to 120 mm wide | 100 m | 155,12 | 37,42 | 0,1 | 226,78 |
FSSC-509-1840 | Cable channel (box) "Electroplast" 100x60 mm | m | 0.00 | 0 | 15 | |
TERm08-02-390-01 | Laying a plastic box up to 40 mm wide | 100 m | 124,29 | 29,9 | 1,14 | 175,75 |
FSSC-509-1841 | Cable channel (box) "Legrand" 20x12.5 mm | m | 0.0 | 0.0 | 8 | |
TERM08-02-398-01 | Wire laying in trays, cross-section up to 6 mm2 | 100 m | 22,9 | 2,33 | 0.00 | 22,9 |
TERM08-02-398-02 | Wire laying in trays, cross-section up to 35 mm2 | 100 m | 15,55 | 4,66 | 3,53 | 33,79 |
We looked at several examples of wiring, incl. in trays, boxes, corrugated pipes, on a cable, in a cable channel, as well as an external installation method. I would like to dwell on the method of laying wires in a trench on a finished sand base. For these types of work there are direct prices from Part 8 of the collection for the installation of electrical devices - they are easy to find in the collection. The only point is that these prices for laying wires in a trench are intended for power cables designed for a higher voltage than most control and control cables. Therefore, it is not recommended to lay low-voltage cables along them, but for power cables, these prices will be just right. On this slightly optimistic note, I would like to end our short excursion into the industry of estimated pricing in terms of laying VVG, UTP, SIP, PV3, KVVG cables and many of their analogues. Without in any way claiming to be the ultimate truth, we just tried to describe several of the most popular solutions when searching for prices on this topic. In general, as we have noticed, one of the features of using the TER, FER, GESN databases is the multi-variability when selecting prices for the same work (of course, in the absence of a direct price), so nothing prevents you from independently selecting one or another standard from the database , and perhaps it will be more accurate and appropriate than what we proposed. Thank you for your attention.