Specification selection of electric vehicle charging cable

The electric vehicle charging cable is used to connect the electric vehicle charging device and the charging infrastructure, so as to transmit power to the electric vehicle, and is equipped with a certain number of signal lines, control lines, power supply auxiliary lines, etc. to ensure accurate control and safe operation of the whole charging process. Charging cables are generally used in charging stations, parking lots, hotels, communities, garages and other areas. Portable charging cables can be placed in the vehicle.

To understand the type selection of charging cable, we need to understand the charging mode and charging current of the charging pile. In general, we can divide the charging modes into four types, the main differences are the use mode and charging speed.

Charging mode 1: charging mode 1 is a combination of single head charging gun + Cable + common 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

Charging mode 3: the combination mode is double head charging gun + Cable + charging pile connected to single-phase power or three-phase power

Charging mode 4: charging gun + Cable + charging pile connected to DC

Their differences are as follows: charging mode 2 is different from charging mode 1 in that the controller is increased. Charging mode 2 has complete protection measures compared with charging mode 1, including overvoltage, undervoltage, overcurrent, overtemperature and leakage power-off protection. Charging mode 1 has no protection measures. Compared with the charging mode 1 and the charging mode 2, the charging mode 3 increases the charging current so as to increase the charging speed, and the demand for charging safety will be higher. Charging mode 4 is a DC charging gun;

Charging cable selection corresponding to charging mode

Charging mode 1:

In charging mode 1, because ordinary CEE plug is used to connect single-phase mains, 10a and 16A current are commonly used, and omg 3 * 1.5 square cable and omg 3 * 2.5 square cable are used for corresponding cables.

Charging mode 2:

Ordinary CEE plug is used to connect to single-phase mains. Omega 3 * 2.5 + 2 * 0.75 cable is used for rated current of 10A / 16a, Omega 3 * 4 + 2 * 0.75 cable is used for rated current of 16A / 32A. For safety consideration, 3 * 6 + 2 * 0.75 cable is recommended for 32A current.

For the selection of charging mode 3 cable, the principle of charging cable selection mentioned above is to determine the charging mode used and the current output by the charging mode to select the corresponding cable. The common output currents of charging mode 3 are 16a, 32a, three-phase 32a, three-phase 63A and three-phase 125A, i.e. the corresponding charging cable is optional

OMG 3 * 4.0 + 2 * 0.75 cable

OMG 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.

Type selection of charging mode 4 cable: charging mode 4 is DC charging, which has obvious advantages such as high charging current and fast charging speed. Therefore, it has higher requirements on safety and thicker cable diameter. In terms of cable, including main power line, it also needs to add ground wire, auxiliary power line and control line, and there are more requirements on cable. When selecting cable, it needs to pay attention to product flexibility and bending radius; High and low temperature resistance, oil resistance, acid and alkali resistance, water resistance, wear resistance, cracking resistance and UV resistance; Flame retardancy; Conductivity, conductor temperature rise; Whether the materials comply with the latest RoHS & reach environmental protection standards, and the selection of products with product recognition will be more guaranteed. The common output current of charging mode 4 is 80A, 125A, 200A and 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

To summarize the above: for the charging selection of electric vehicles, in principle, we have determined the charging mode used and the current output from the charging mode to select the corresponding cable.

It is worth noting that due to the different standards of charging pile cables issued by various countries, we must use the corresponding national standard charging pile cables when exporting. If you choose the right charging point cable supplier, these are not difficult to decide

For more about EV Charging cable information,Please visit or search: https://www.omgevcable.com