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Charging Infrastructure

Charging Infrastructure

Public Charging

This can be where many new owners get confused with a lack of real world experience by some, however if you can grasp the basic’s and know your cars limits, this will come in time.

Modes of Charging

There are a number of options available in the New Zealand for the charging of electric vehicles. A range of factors will influence a consumer’s decision to adopt any of the following modes and types of infrastructure, including the vehicle type, desired speed of charge. The following set of recommendations is based on the current development of products and standards, and aims to promote safe and energy efficient charging practices.

There are 4 key modes (as defined in the standard EN 61851-1) for the charging of an electric vehicle, as summarised below

Mode 1 charging: Non-dedicated circuit and socket-outlet, charging without cable-incorporated RCD protection
Mode 1 should not be used for the charging of an electric vehicle because RCD protection, which is necessary for a safe charging system, cannot be guaranteed at all outlets.

Mode 2 charging: Non-dedicated circuit and socket-outlet, charging with cable-incorporated RCD protection
Mode 2 can be used for the charging of an electric vehicle in locations where there is no dedicated charging installation (Mode 3 or 4, see below), and for use by legacy vehicles. Mode 2 cables are provided with an in-cable control box (including RCD), set and adjusted to a specific charging power, and guarantee the provision of RCD protection during charging.

Mode 3 charging: Fixed and dedicated socket-outlet
Mode 3 can be used for the charging of an electric vehicle and this is the preferred solution in the long term. Mode 3 chargers are defined in 2 configurations, either with a tethered cable or a dedicated socket-outlet.

Mode 4 charging: Dedicated rapid charging, DC supply
Mode 4 is a necessary service function for rapid charging, for use as roadside assistance and service station charging on long journeys.

Types of Charging and Standard Charging Times

Slow: using a standard 13 amp supply (10 – 12 hours for full charge)

Slow: using a 16 amp supply (6 – 8 hours for full charge)

Fast: uses single or three phase 32 amp supply (3 – 4 hours for full charge)

Rapid: uses a AC or DC supply (typically 80% charge in 30 mins) most Electric Highway sites tend to be 50kW DC / 43kW AC.

 

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