In the latest news, the first version of the latest standard UL2263-Standard for Electric Vehicle Cable (electric vehicle cable standard) was released on May 09, 2022. Electric vehicle cables were originally described in Section 4.8 of the UL62 standard, and have been replaced by the UL2263 standard. Therefore, you should refer to the new UL2263 standard during certification and testing.

There are six models of UL2263, namely EVJ EV; EVJE EVE; EVJT EVT 

Group 1: Thermosetting material insulation type: EVJ EV

Type EVJ — Rated 300 V, contains two to six 18-12 AWG thermoset-insulated circuit conductors, and may employ one or more insulated grounding conductors. The cable may contain hybrid data, signal, communications, and/or optical fiber cable in any AWG size.

Type EV — Rated 1000 V, contains two or more 18 AWG to 500 kcmil thermoset-insulated circuit conductors, and may employ one or more insulated grounding conductors. The cable may contain hybrid data, signal, communications, and/or optical fiber cable in any AWG size.

The insulation materials used for EVJ and EV are mainly thermosetting materials (such as EP, CR, CSM, CPE, etc.)

CR: polychloroprene; CSM:chloro-sulphonyl-polyethylene; CPE: chlorinated polyethylene; EP: ethylene propylene rubber

Group 2: thermoplastic elastomer insulation model: EVJE EVE

Type EVJE — Rated 300 V, same as Type EVJ except that the cable employs thermoplastic-elastomer-insulated conductors and jacket.

Type EVE — Rated 1000 V, same as Type EV except that the cable employs thermoplastic-elastomer-insulated conductors.

EVJE,EVE mainly use thermoplastic elastomer materials (such as TPE, etc.)

Group 3: thermoplastic insulation model: EVJT EVT

Type EVJT — Rated 300 V, same as Type EVJ except that the cable employs thermoplastic (PVC) insulated conductors.

Type EVT — Rated 1000 V, same as Type EV except that the cable employs thermoplastic (PVC).

EVJT,EVT insulation materials are mainly thermoplastic materials (such as PVC, etc.)

2 .Voltage

This standard UL2263 specifies the requirements for electric vehicle cables rated up to 1000VAC and DC. Three voltage levels are available: 300V, 600V, and 1000V.

3.Temperature

It is rated at 60 °C, 75 °C, 90 °C, or 105 °C

UL2263 has four temperature levels: 60 °C, 75 °C, 90 °C, and 105 °C. Compared with the European standard EN50620 and the national standard GBT33594, the maximum temperature resistance is 90 degrees, so the temperature of the United States UL standard is much higher.

60 to 105°C (140 to 221°F) dry: Dry environment (mainly indoor) : 60 to 105°C

60°C (140°F) wet: Wet environment: 60°C

exposed to oil at 60°C (140°F) where exposed to oil: Exposed to oil at 60°C

4.Conductors

Conductors shall be of annealed copper in compliance with ASTM B3 or NMX-J-036-ANCE, or annealed coated copper in compliance with ASTM B33 or NMX-J-008-ANCE;The conductor is mainly soft copper or electroplated soft copper, alloy copper and aluminum alloy these metal conductors can not be selected

5 .Wire Diameter Size

Electric vehicle cable employs flexible stranded copper conductors in a size range of 18 AWG(0.824mm² ) to 500 kcmil(253mm²);Signal transmission and control cables are not subject to this restriction

6 .Insulation and Sheath Materials

The insulation and jacket are both thermoset on Types EVJ and EV, thermoplastic elastomer (TPE) on Types EVJE and EVE, and thermoplastic (PVC) on Types EVJT and EVT.

Insulation Materials

Sheath Material

The above interpretation is just personal understanding, if there is any mistake, please give criticism and correction, not as the basis for testing and certification, all subject to the content of the UL standard.

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