Technical requirements for AC charging piles
1, environmental conditions
① working environment temperature: -20 ℃ ~ +50 ℃;
② relative humidity: 5% to 95%;
③ altitude: ≤ 1000m;
④ installation location: outdoor;
⑤ seismic capacity: ground level acceleration 0.3g;
Vertical acceleration of the ground 0.15g;
Equipment should be able to withstand the same time lasting three sine wave, and the safety factor should be greater than 1.67;
2, structural requirements
① AC charging pile (bolt) shell should be strong;
② the structure must be prevented from touching the exposed parts;
③ AC charging pile (bolt) should be selected thickness of 1.0 or more steel composite structure, the surface of the use of dipping treatment, and give full consideration to the requirements of heat. Charging pile (bolt) should have a good anti-electromagnetic interference shielding function;
④ charging pile (bolt) should have sufficient support strength, should provide the necessary facilities to ensure the correct lifting, transport, storage and installation of equipment, and should provide anchor bolts;
⑤ pile (bolt) body should be fixed at the bottom of the ground is not less than 200mm on the base. Base area should not be greater than 500mm × 500mm;
⑥ pile (bolt) body shell should be used strong impact resistance, anti-theft performance, anti-aging material;
⑦ non-insulated material shell should be reliably grounded;
3, power requirements
① input voltage: single-phase 220V;
② output power: single-phase 220V / 5KW;
③ frequency: 50Hz ± 2Hz;
④ allowable voltage fluctuation range: single phase 220V ± 15%;
4, electrical requirements
① plug and socket the correct connection to confirm the success, with load can be split circuit can be closed to achieve the power supply to the socket;
② leakage protection device should be installed in the power supply cable into the line side;
③ low-voltage power distribution equipment and line protection should meet the "low-voltage power distribution design specifications" (GB / 50053) in the relevant provisions;
④ on the IT system distribution lines, when the first ground fault, the insulation monitoring device should be issued by the sound or light signal, when the second phase failure occurs when the overcurrent protection should be over-current protection or leakage current protection device Cut off fault circuit;
⑤ lighting distribution system, lighting and socket circuit should not be the same circuit power supply. The power supply side of the socket circuit should be set to the residual current protection device, the rated action current of 30mA;
6, security protection
① AC charging pile (bolt) should have emergency stop switch, through manual or remote communication way to stop charging;
② AC charging pile (bolt) should have the output side of the leakage protection;
③ AC charging pile (bolt) should have the output side of the overcurrent and short circuit protection;
④ AC charging pile (bolt) should have a flame retardant function;
7, IP protection class
AC charging piles (plugs) should comply with IP54 (outdoors) and configure the necessary rain and sun protection devices;
8, three anti (moisture, mildew, anti-salt spray) protection
Charger circuit board, connectors and other circuits should be anti-moisture, mildew, salt spray treatment, which anti-salt spray corrosion capacity to meet GB / T 4797.6-1995 "electrical and electronic products natural environment conditions dust, sand, salt Fog "in Table 9 requirements, so that the charger can be in the outdoor wet, salt spray environment normal operation;
9, rust (anti-oxidation) protection
Charging pile (bolt) iron shell and exposed iron bracket, parts should take double anti-rust measures, non-ferrous metal shell should also have anti-oxidation protective film or anti-oxidation treatment;
10, wind protection
Installed on the platform of the charger and the exposed parts should be able to withstand GB / T 4797.5-9 "electrical and electronic products in the natural environment of precipitation and wind" in Table 9 of the different regions, different height of the relative speed of the invasion;
11, anti-theft protection
The bolt of the fixed pile (bolt) must be installed or disassembled after opening the shell door.
12, temperature requirements
AC charging pile (bolt) in the rated load long-term continuous operation, the internal heating components and parts of the temperature rise should not exceed Q / GDW 397 \ 2009 in Table 2 provides;
13, the average time between failures (MTBF)
MTBF should not be less than 8760h;
14, the installation of vertical tilt of not more than 5%;
15, the equipment installation site shall not be explosive hazardous media, the surrounding media does not contain corrosion of metal and damage the insulation of harmful gases and conductive media a) charging pile (bolt) power input voltage: three-phase four-wire 380VAC ± 15%, frequency 50Hz ± 5 %;
B) Charging pile (bolt) should meet the charging object
C) charging pile (bolt) output for the DC, the output voltage to meet the charging target battery system requirements;
D) the maximum output current to meet the charging object of the battery system 1C charging requirements, and backward compatible;
E) charging method is divided into conventional and fast two ways, the conventional 5-hour charging method, fast 1 hour charging method (for different battery type selection);
F) Realize intelligent IC management;
G) Each charging pile (bolt) comes with an operator for the user to select the charging mode and operation guidance, and display the electric vehicle battery status and user IC card tariff information to achieve unattended;
H) Charging pile (bolt) interface should be consistent with GB / TXXXXXXXX electric vehicle conduction charging interface (temporary) in the relevant provisions of the DC charging interface;
I) Charging pile (bolt) communication interface using CAN communication interface, communication protocol in accordance with GB / TXXXXXXXX electric vehicle battery management system and non-car charger between the communication protocol (temporary) provisions (charge for the lithium battery electric vehicle) ;
J) Charging pile (bolt) on the charging process of the abnormal state should have the appropriate alarm and protection;
K) charging pile (bolt) to monitor the state of the battery, according to the battery temperature, voltage on the charging curve, charging current, charging voltage automatically adjusted;
L) Charged pile (bolt) forced air cooling;
M) Charging pile (bolt) Protection class in line with "GB 4208-1993 enclosure protection class (IP code)" IP54 requirements;
Fast charging pile (bolt) equipment using AC-DC structure. Can be achieved DC charging, you can also AC charging. Daytime charging business more time, the use of DC way to fast charge, when the night charge station users can use AC charging for slow charging operation.
Shape features
1, ergonomic design, fully consider the characteristics of the Chinese people, after installation, the height of the machine, the height of the screen, the height of the keyboard, charging connector slot height, suitable for operation;
2, on the outlet form, save the operator half of the physical;
3, consider people's habits and durability, the use of touch and keyboard backup each other control, touch screen and keyboard with rain, dustproof design;
4, with emergency stop emergency stop switch; with a charging connector slot, slot can be waterproof; 5-meter-long soft cable.
Features
1, to provide human-computer interaction; to provide DC, AC charging interface;
2, with voice prompts; with credit card function;
3, with the function of print receipts;
4, and BMS real-time communication, access to power battery type, single voltage, the remaining capacity, temperature, alarm and other information;
5, to the charger control instructions, switch signal, control the charger to start and stop, access to the charger status information;
6, with the charging interface to determine the status of the connection, interlock, control and other guidance to improve the security control logic;
7, with CAN2.0B, RS485 communication interface, and can monitor the communication, send the state of charge information;
8, with leakage, short circuit, overvoltage, undervoltage, overcurrent protection, to ensure that the charging pile (bolt) safe and reliable operation; protection class IP54. Basic parameters to meet the standard New national standard connector Power line contact Rated voltage DC750V Connector Power line Contact rated current 125A Connector control line Contact voltage DC36V Connector control line Contact current 5A Connector Mechanical operating life ≥10000 times Waterproof rating IP67 withstand voltage 2000V insulation resistance 500MΩ