AC means alternating current. The current moves in a waveform in a positive and negative direction. AC is typical for the powerlines and typically used in houses.

AC Charging means using an onboard charger, that is, an AC/DC converter onboard the electric car.

Arcing is when electricity tries to jump across a gap between connections. For example, if a 16 Amp plug isn’t pushed all the way into the 16 Amp socket, the flow of electricity gets interrupted. That little gap between the power outlet and the plug’s metal pins can cause heat to build up in your EV charging cable. When that happens, the safety features in your EVSE (charging unit) kick in and shut things down—so your car won’t charge.

Auto Charge Recovery is a feature of the EV Power range. When the device has interrupted the supply of power the unit will wait, and then three minutes later try again and hope for a successful connection. Handy in those areas where for example ‘ripple control’ can momentarily change the supply. 

CHAdeMO is both a DC fast charging standard and the name of the international association that promotes it.

Charging Stations are locations where one or more charging points are located

Charging Points are single outlet for EV charging

CE marking certifies that a product meets EU health, safety, and environmental standards, required for sale in the European Economic Area and often used worldwide.

CEE Plug type (also known as Caravan Plugs in New Zealand). It is an industrial power plug offering safety, durability, and faster charging time because it can draw 16 Amps out of an electric circuit. The plug has temperature sensors

Charger: Device that converts AC power from the grid into DC power for charging a battery.

Charging cables usually come with plug-in electric cars. They’re easy to use—plug them into a regular household outlet, and no special setup is needed. In New Zealand, WorkSafe recommends getting an electrician to install a separate circuit with a Type B RCD for extra safety. And don’t forget to follow the safety instructions provided with every EVPower charging cable.

Charging Speeds can vary.

It depends on your battery size, how far you’ve driven, and how powerful the charger is.

Most electric cars—and plug-in hybrids—can’t charge faster than 7.2 kW when using AC power. It’s totally safe to use a faster charger, but your car will only take the amount of power it can handle.

Also, remember that your battery usually isn’t completely empty when you plug in—kind of like your phone.

DC means direct current, meaning that the current only moves in one direction. DC current is used for power transmission over great distances because it leads to less inductive losses.

DC Charging indicates using an offboard charger, that is, a charger located at the charging station, and not in the vehicle.

Earth leakage protection such as a circuit breaker device. It detects small stray voltages on the metal enclosures of electrical equipment, and interrupts the circuit if a dangerous voltage is detected.

EV: Stands for Electric vehicle

EVSE means Electric Vehicle Supply Equipment. Cables and wall chargers simply deliver electricity to the car. Electronics on board the car transform the power into the proper form to charge the battery. The car also has a maximum power rating which means, depending on the wiring it can only take…

IC-CPD means ‘In Cord – Control and Protection Device’. It is another way of describing a device in the box in the middle, which contains electronics to make sure that the EV is charged safely. For example, telling the EV that it can only consume a maximum of 8A.

IEC stands for International Electrotechnical Commission, an international body for electrical standards

IEC 60529 has been developed to rate and grade the resistance of enclosures of electric and electronic devices against the intrusion of dust and liquids.

The required laboratory conditions for compliance with IPXX ratings (to measure the level of protection offered by the enclosure) include calibrated nozzles, controlled pressure and testing for up to 30 mins.

IEC 62752 standard is a standard for a product which connects the electric vehicle with a standard household socket.

IP (or “Ingress Protection”) ratings are used to define levels of sealing effectiveness of electrical enclosures against intrusion from foreign bodies (tools, dirt etc) and moisture. Standards are outlined by IEC 60529.

•    IP ratings are assessed in a lab, with products immersed in still, clean water

•    The test doesn’t account for real-life situations.

•    The devices don’t have to be on during testing – if an electronic device is powered on underwater and is running programs, its internal temperature and pressure will increase, negatively affecting the depth of water the product can withstand. Heat can cause the case to expand which may allow water to enter the IC-CPD box.

IP65

First Digit (solid/dust resistance)
6 = Totally dust tight. Full protection against dust and other particulates, including a vacuum seal, tested against continuous airflow.
Second Digit (moisture protection)
5 = Protection against direct low pressure jets. Nozzle 6.3mm / distance 2.5 – 3m / water flow rate 12.5 l/min for 3 min

In real-life an IP 65 rating should allow outdoors use of a portable charging cable. However, where there is persistent light rain, hours of driving rain, the EVSE should be offered some form of protection as these conditions are not covered by its IP 65 or 55 rating. Water and electronics do not mix and common sense is required when charging your EV in all weathers.

kWh means Kilowatt hour, equal to 1000 watt hours. The amount of energy expended in one hour by one kilowatt-hour.

kW means Kilowatts, a measure of power, A unit of energy, usually used for electrical energy, but also equivalent to other measures of energy, such as 800 calories.

Level 1, level 2 and level 3 are the American terms for what the Brits mostly call slow, fast and rapid charging. Level 1 Charging is the technical jargon (used more commonly in other countries) for plugging your car into an ordinary household outlet using a charging cable.

Level 2 charging means using home charging station, an EV Power domestic AC wall charger can deliver 32 Amps. 

Level 3 charging is the high-power, DC supply, with the AC supply converted to DC inside the charging station. This is the sort you’ll find at some car parks and dedicated charging areas.

Mennekes means the same thing as a Type 2 connector. Mennekes is a company in Europe and they make Type 2 connectors, that’s where the name came from. Commonly referred to as circular in shape, with a flattened top edge (or a D on it’s side). 

Overcurrent protection works to protect against excessive currents or current beyond the acceptable current rating of equipment.

Overvoltage protection works to cut-off the supply whenever the input voltage exceeds a certain unsafe value

PHEV means Plug-In Hybrid Electric Vehicles

Protection class IP65 means water-resistant, not waterproof. *Do NOT leave in standing water. Also see (IP)

Public Charging Stations can be a private or commercial venture for a fee or free, sometimes offered in partnership with the owners of the parking lot. This charging may be slow or high speed and often encourages EV owners to recharge their cars while they take advantage of nearby facilities. Examples include charging at work, parking at shopping malls, and public transit stations.

Typically, AC public charging stations have a Type2 plug. At OEM Audio we stock Type 2 cables suitable for Type 1 and Type 2 EV/PHEV.

RCD Type B devices quickly break an electrical circuit to prevent serious harm from an ongoing electric shock.

RFID tags are a type of tracking system that uses smart barcodes in order to identify items. RFID is short for “radio frequency identification. An EV Power Wall Charger with RFID tags will only supply power to a user with the corresponding RFID tag.

SAE organization is known for developing standards in the aerospace and automotive industries.

SAE J1772 Is a type of charging connector also known in NZ as a Type 1.

Single phase requires the single wire to connect the circuit. The voltage of the single phase is 230V.

Short circuit protection is protection against excessive currents or current beyond the acceptable current rating of equipment and it operates instantly. As soon as an overcurrent is detected, the device trips and breaks the circuit.

Tesla charging equipment can be Tesla branded or generic. If your Tesla has a type 2 socket you can charge using a lead with a Type 2 handle/connector.

Three phase (3-phase) needs 3-wires and the three-phase voltage is 415V.

Type 1 (J1772) is an AC connector (with 5 pins) mainly used in electric vehicles from Asia and America. The Type 1 plug is a single-phase plug that allows for charging power levels of up to 7.4 kW (230 V, 32 A). Fits EV/PHEV ex-Japan or NZ new.

Type 2/Mennekes is a socket that can potentially offer charging up to 22kW per hour (if the cable is a 3-phase version). Mostly, they come in single-phase options for domestic use and charge at 7.4kW per hour.

The most common public AC socket for plugging in to across New Zealand for domestic and light commercial use. NZTA recommended that AC public charging stations provide a Type 2 socket; the driver will be expected to provide their own supply cable that is compatible with their vehicle inlet.

IEC Type 1/SAE J1772 connector (left); Tesla connector (centre); IEC Type 2 connector outlet (right)

Wall chargers are also known as domestic charging stations/home chargers/home charge points/EVSE (Electric Vehicle Supply Equipment) or wall box, but refer to the same thing.

A home charging station/wall charger is preferred over constant use of your 3-pin plug outlet. A home charging station/wall charger may or may not have user authentication or separate metering, but will require wiring* a dedicated circuit to have safe charging. Apartments sharing a wall charger may be set up differently. 

**Always use a qualified electrician