How to choose the EV charging cables
Friends who use electric vehicles often need to charge electric vehicles. Some use charging piles in the company, some pull in the community, and use supercharging stations for fast charging. The charging environment for electric vehicles is increasing. So, what are the modes of electric vehicle charging? How to choose the charging pile cable under various charging modes?
Today we mainly talk about the selection of charging pile cables.
First of all, to understand the selection of charging pile cables, you need to understand what charging modes are available for electric vehicle charging? What kind of cable to choose in the corresponding charging mode.
Classification of charging modes
In general, we can divide the charging method into four types, the main difference is the use method and charging speed.
Charging mode 1: Charging mode 1 is a combination of single-head charging gun + cable + ordinary CEE plug connected to single-phase mains
Charging mode 2: The combination mode is single-head charging gun + cable + control box + plug connected to single-phase mains
The difference between charging mode 2 and charging mode 1 is to increase the controller. Charging mode 2 has complete protection measures compared to charging mode 1. It can be provided with over-voltage, under-voltage, over-current, over-temperature, leakage and power-off protection. Charging mode 1 has no protection Measures.
Charging mode 3: The combination mode is double-headed charging gun + cable + charging pile connected to single-phase electricity or three-phase electricity
Compared with charging mode 1, charging mode 2 and charging mode 2, charging mode 3 increases the charging current, and thus the charging speed, and the demand for charging safety will be higher.
Charging mode 4, the combination mode is charging gun + cable + charging pile connected to DC
Selection of charging cable corresponding to charging mode
Above we talked about the introduction of charging mode, and then let's talk about the selection of charging cable. The charging cable selection principle is to determine the charging mode used and the current output by the charging mode to select the corresponding cable.
In charging mode 1, because a common CEE plug is used to connect to single-phase mains power, 10A and 16A currents are commonly used, and the corresponding cables use AOMEG 3*1.5 square cables and AOMEG 3*2.5 square cables.
Charging mode 2 uses ordinary CEE plugs to connect to single-phase mains, rated current 10A/16A uses Omega 3*2.5+2*0.75 cables, and rated current 16A/32A uses Omega 3*4.0+2*0.75 cable.
Charging mode 3 cable selection, we mentioned above the principle of charging cable selection is to determine the charging mode used and the current output by the charging mode to select the corresponding cable. The common output current of charging mode 3 is 16A, 32A, three-phase 32A, three-phase 63A, three-phase 125A, that is, the corresponding charging cable can be selected from Omega 3*4.0+2*0.75 cable, Omega 3*6.0+ 2*0.75 cable, OMG 5*6.0+2*0.75 cable, OMG 5*16+2*0.75 cable, OMG 5*35+2*0.75 cable.
The selection of the charging mode 4 cable. The charging mode 4 is DC charging, which has obvious advantages such as high charging current and fast charging speed. Therefore, it has higher safety requirements and thicker cable diameter. The cable includes the main power line. Need to add ground wire, auxiliary power line, control line, and more requirements for the cable, choose the cable to pay attention to product softness, bending radius; high and low-temperature resistance, oil resistance, acid and alkali resistance, water resistance, wear resistance, crack resistance, resistance UV; flame retardant performance; conductive performance, conductor temperature rise; whether the material complies with the latest environmental protection standards of ROHS&REACH, it is more guaranteed to choose products with product quality. The common output current of charging mode 4 is 80A, 125A, 200A, 250A, and the corresponding charging cable is optional OMG 2*20+25+2*4.0+6*0.75 cable, OMG 2*35+25+2*4.0+ 6*0.75 cable, OMG 2*50+25+2*4.0+6*0.75 cable, OMG 2*80+25+2*4.0+6*0.75 cable.