Two-storey cottage power supply project (Dream village)

Contents

1. GENERAL DATA

2. TABLE OF CONTENTS

3. DESIGN OBJECT CHARACTERISTICS

4. STRUCTURE AND PROJECTED LOADS OF POWER SUPPLY NETWORK

4.1 EQUIPMENT CHARACTERISTICS

5. TECHNICAL SOLUTION

5.1. POWER SUPPLY TO SOCKETS

5.2. LIGHTING POWER SUPPLY

5.3. METHOD OF ELECTRICAL GRIDS LAYING

5.4. PROTECTIVE EQUIPMENT

5.5. LIGHTNING PROTECTION

6. ORGANIZATION OF OPERATION

7. EQUIPMENT OPERATION

1. General Data

This project "Power Supply and Electric Lighting" of the cottage at the address: Moscow Region, Dmitrovsky Rn, Gabovsky Rural Settlement, s. Ozerskoye, cottage No. was developed in accordance with the design specification and initial data of the Customer.

The basis for the design are:

• layouts provided by the Customer;

• technical data of pre-design survey of the facility.

The project was developed in accordance with the requirements of the following regulatory documents:

Electrical Installation Rules (PUE);

GOST R50571 93 (94.96) "Electrical installations of buildings";

SP 311102003 Design and installation of electrical installations of residential and public buildings.

Fire Safety Rules (FSS).

Fire safety standards (NPS).

3. Characteristics of the design object

The design object is a cottage at the address: Moscow Region, Dmitrovsky Rn, Gabovsky rural settlement, s. Ozerskoye, cottage No., consisting of two floors. In the cottage, electricity is supplied to power devices: household equipment, as well as lighting electrical appliances.

4. Power supply network structure and designed loads

According to TA, loads are divided into groups:

• loads of electrical equipment;

• lighting;

• outlet network.

When calculating loads, it is accepted:

• minimum power consumption per socket - 0.100 kW.

5. Technical solution

The power supply system is divided into socket power supply, power supply to process consumers, and lighting power supply. The common power supply and earthing system is TNCS.

In the introductory board, the potential equalization system shall be performed in accordance with PUE, chap. 1.7. by combining the following conductive parts:

- main (main) protective conductor (PE) of the supply line;

- metal pipes of utilities;

- metal grid of potential equalization;

All above mentioned parts are connected to the main grounding bus by radial circuit by means of conductors of potential equalization system made by copper wire according to PUE.

The lead panel bus PE is used as the main ground bus.

All electrical equipment used in the design shall have a quality certificate of the Russian Federation.

The conductors in the electrical panel are marked in accordance with PUE 1.1.29.

5.1. Power supply of sockets.

To enter power supply, the design provides for the installation of the control and distribution board of the shield, from which electricity is distributed to power consumers and the lighting network. SGSD is installed on the first floor, according to plans .

The connection node to the 220B socket network is a 1-phase power socket with protective ground embedded in the wall.

5.2. Lighting power supply

Lighting power is supplied from the control and distribution board of the control panel, through circuit breakers 6 and 10 A. The place of installation of the control and control panel is according to the plans.

5.3. Method of electrical grids laying

When laying power cables, refer to SNiP 3.05.0685 and PUE section 7.1.

Cable lines of the power network are laid in the stem of the walls, and in the space behind the suspended ceiling, in the PVC pipe or metal hose, in accordance with PUE section 2. Lighting networks shall be laid in the wall stem and behind the suspended ceiling in PVC pipe Ø20 mm or metal hose, in accordance with the requirements of PUE section 2.1 and 7.1.

A PVC pipe Ø20 mm, Ø25 mm and Ø32 mm and a metal hose (gasket in the stem of the walls and behind the suspended ceiling) are used for cable wiring of the power network to the workrooms.. Install sockets on walls in place, according to plans.

The final places of installation of sockets, routes for laying cable routes are specified in place during installation.

To ensure the safety of people, all metal buildings of electrical equipment and metal structures normally not energized must be reliably grounded in accordance with the requirements of PUE. The grounding devices shall be installed in accordance with the requirements of MV 10276. The resistance of the grounding device must be not more than 10 ohms.

5.4. Protective equipment

The cottage power supply system uses Legrand protective equipment, which includes ultrasound and circuit breakers. The project used equipment with disconnection capacity not lower than 6.0 kA.

5.5. Lightning protection

The building belongs to category III for lightning protection in accordance with the "Instruction on lightning protection of buildings and structures."

The building shall be protected from direct lightning strikes, secondary manifestations of lightning and skid of high potential through ground (above ground) metal communications. Protection against direct lightning strikes is performed by applying lightning detectors on the roof along the ribs and along the perimeter. To protect against high-potential drift through external metal communications, they must be connected to the main grounding bus at the entrance to the building. The Direct Lightning Protection Grounding Connector shall be integrated with the Electrical Unit Grounding Connector. To protect against secondary manifestations of lightning, the metal bodies of the installed equipment and devices are connected to the grounding device. Inside the building, bridges shall be made between pipelines and other extended metal structures at the points of their approach at a distance of less than 10 cm, every 30 m.

Perform lightning protection in accordance with RD 34.21.12287 ("Instructions for lightning protection of buildings and structures").

6. Organization of operation

Upon completion of the works, it is necessary to draw up acts of examination of hidden works on cable and network laying and draw up a protocol for measuring insulation resistance of sections of the distribution power network and electric receivers.

7. Equipment operation

All equipment proposed for use in this project is certified and meets the standards of the Russian Federation, during operation in accordance with this project, does not pose a danger to people.

Safety of people during operation of the power supply system is ensured by:

inaccessibility for unintentional direct contact with current-carrying parts of electrical installations, which is achieved by the use of materials having proper insulation;

arrangement of components of the power supply system out of reach;

using reliable and fast-acting automatic disconnection of parts of electrical equipment that were accidentally energized and damaged sections of the network;

handling and grounding of electrical equipment enclosures and cable structures, which may be energized due to insulation damage. TNCS grounding system is used to protect personnel against electric shock.