Underground parking lot charging pile installation scheme

Author: EVCOME-EV Chargers Manufacturers

For the installation plan of the charging pile in the underground parking lot, you can directly call 15919794865 to consult Shenzhen evcome New Energy Co., Ltd. to provide you with an overall solution for the installation of the charging pile in the underground parking lot. charging pile manufacturers. There are many types of charging piles to choose from, such as electric bicycle charging piles, charging and swapping cabinets, AC piles, DC piles, low-voltage DC piles, DC split piles, DC integrated piles, and AC and DC integrated piles. 1. The installation method of charging piles in underground parking lots“One-time configuration”and“Reserved installation conditions”Two types, specifically as follows: (1)“Reserved installation conditions”Requirements: Only reserve power capacity and installation space. (2) “One-time configuration”Requirements: During acceptance and delivery, special transformers and cable bridges should be laid in place, and the configuration of cables, distribution boxes, and charging facilities should be selected according to regional and marketing requirements. (3) In the new residential project, if the construction and reserved ratio of the underground parking lot cannot be satisfied under special circumstances, the reasons shall be explained, and the final condition design approval document shall prevail. (4) AC charging piles have the advantages of low price, small size, easy installation, space saving, easy maintenance, and are suitable for charging at night in residential basements.“One-time configuration”In principle, charging facilities can be designed according to AC charging piles. 2. Requirements for the placement of charging piles in underground parking lots 1. In order to facilitate the laying of equipment and the management and use of charging facilities,“One-time configuration”The charging parking spaces should be centrally arranged as a charging parking area, and the planning requirements are as follows: (1) The charging parking area should be close to the charging power distribution room, and the distance between the charging power distribution room and the parking area should not exceed 50 meters. (2) When the radius of the service line exceeds 200 meters, multiple charging parking areas should be set up separately. (3) The number of concentrated parking spaces in each charging parking area should not exceed 100. (4) The charging parking area should be set at the entrance and exit of the garage to facilitate fire rescue and vehicle entry and exit. 2. In order to ensure the safe use and convenient maintenance of charging facilities and substation and distribution rooms, the layout requirements are as follows: (1) It should not be installed in low-lying locations that are prone to water accumulation. (2) It should not be installed next to toilets, bathrooms or directly below other places where water often accumulates. (3) It should not be installed in places with severe vibration or high temperature. 3. The layout of charging facilities should not hinder the driving and parking of electric vehicles, and the distance between them and electric vehicles and buildings (structures) for safety, operation and maintenance should meet the following requirements: (1) The layout of charging facilities should not block the sight of drivers, And it should not be installed on pedestrian evacuation corridors and passages. (2) Anti-collision measures should be considered in the direction of charging facilities facing vehicles. (3) In principle, wall-mounted or hoisted installation should be adopted. (4) The installation form and layout position should consider the convenience of operation between the electric vehicle and the charging facility and the convenience of vehicle parking. The specific requirements are as follows: the charging facility should be arranged on the back of the structural column on the side of the parking space, and the opening of the car door should not be affected after the installation is completed. The installation form is selected according to the width of the structural cylinder and the width of the purchased charging pile. (5) When the charging facility is installed on the side wall of the parking space, the width of the side wall and the parking space should be≥500mm, the installation location of the charging facility should be arranged at the front or rear of the car, and should not affect the opening of the car door; when the charging facility is installed on the wall at the rear of the parking space, the parking space should be arranged close to the wall, and the charging facility should be installed in the middle. (6) When there are no civil installation components around the charging parking space, the charging facilities can be hoisted and arranged at the rear of the parking space. 4. The installation of charging facilities should meet the following requirements: (1) The walls and brackets where the charging facilities are installed meet the load-bearing requirements, and the charging facilities are reliably fixed. (2) Charging facilities should be installed perpendicular to the horizontal plane, and the error in any direction from the vertical position should not be greater than 5°. (3) The installation height of the equipment should be easy to operate, and the horizontal centerline of the equipment man-machine interface operation area should be 1.4m from the ground. (4) The charging facilities installed on the ground in the basement should be equipped with an installation base, the base should be larger than the outer contour size of the charging facility, and the height should be 1000mm higher than the floor of the building. 3. General requirements for charging piles in underground parking lots 1. General design requirements (1) There are three types of commonly used charging equipment: AC charging piles, the power supply adopts 220V AC voltage; DC charging piles, the power supply adopts 380V AC voltage; AC and DC integrated charging Pile, the power supply adopts 380V AC voltage. (The local requirements shall prevail when there are special requirements in the region) (2) Charging equipment should have functions such as leakage protection, over-under-current, over-under-voltage, and over-temperature protection. (3) The charging equipment should have an emergency shutdown function, and the plugging and unplugging of the charging gun should have a protection function. Lightning protection measures should be taken for charging equipment installed outdoors. Charging equipment should have an automatic wire take-up function to prevent damage to the charging cable caused by improper use. (4) The charging equipment selected should meet the relevant requirements of national standards, energy industry standards and enterprise standards of the State Grid Corporation of China, and meet the charging needs of different models. Charging equipment should be compatible with the charging function of new/old national standard electric vehicles. (5) Special electric vehicles need to be equipped with special charging equipment, and the owner shall apply to the property and relevant departments for implementation. 2. Power supply and distribution and low-voltage system (1) For newly-built residential parking garages (yards), when designing the electric capacity used for substations, the load capacity of electric vehicle charging equipment should be fully considered, and low-voltage power distribution circuits or The installation location of special transformer and power distribution system. (2) The load calculation of electric vehicle charging equipment should be calculated according to the unit index method according to the number of electric vehicle parking spaces in the scheme design stage, and the calculation coefficient can be selected by referring to the table below. (3) The load calculation of electric vehicle charging equipment should be carried out according to the specific parameters of the charging equipment using the demand coefficient method, and the value of the demand coefficient should meet the relevant requirements of national and local standards. (4) The distribution power supply of electric vehicle charging equipment should be provided with a dedicated circuit for power supply. The power supply circuit of the charging equipment should be connected to the residential public transformer distribution system or the non-residential supporting dedicated transformer distribution system according to the requirements of the local power supply bureau. (5) Electric vehicle charging equipment should adopt radial power distribution, and the power distribution system should achieve three-phase load balance. (6) Restraining measures should be taken to limit the harmonics of the power distribution system of charging equipment within the specified range. (7) The wires (cables) and wire tubes of the power distribution lines of charging equipment should be selected according to the most economical principle under the premise of meeting national and local standards. The specifications of wires (cables) should not be arbitrarily increased, and the material standards and specifications of wire tubes should not be arbitrarily increased. (8) The illuminance value of the electric vehicle parking area should meet the relevant requirements of national and local standards. 3. Metering and billing, monitoring and communication systems (1) Charging equipment should be equipped with metering electric energy meters, and the number of electric energy meters should meet“one pile one table”. The distribution box for charging equipment should be located in a reasonable location according to the electric vehicle parking area divided by the building. (2) The charging equipment has an IC card reading device or a code scanning function to realize functions such as charging control and charging billing. The billing standards for charging equipment should be implemented in conjunction with the requirements of the local power supply bureau. Charging equipment should have multiple settlement methods. (3) The charging equipment should be equipped with an Ethernet communication interface or a wireless communication module as needed, so as to facilitate the management of the charging pile network in the later stage, and to be connected to the system of the relevant management department. (4) The monitoring and communication system of electric vehicle charging equipment should be set up according to the actual needs of the project. The monitoring system should monitor and control the status of power supply, power quality, and operating status of power supply equipment. The communication system should be able to communicate with the superior monitoring and management system, accept instructions from the superior monitoring and management system, and upload data to the superior monitoring and management system. (5) The control room of the charging equipment monitoring and communication system is included in the property management comprehensive information platform, and no separate control room is set up. (6) According to the project product portfolio (high-rise, small high-rise, multi-storey), conduct technical and economic comparison and selection of water supply schemes, and the order of decreasing cost is: frequency conversion pressurization control system with water tank, direct-connected water supply system without negative pressure pipe network, municipal Pressure direct supply, depending on the project situation, you can choose a combination of multiple solutions.

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