Mobility - EV Charging Stations

1. Standard Wiring Diagram

The Climkit Mobility system involves the installation of smart charging stations that communicate with the Climkit Gateway via the OCPP protocol.

Through this communication and the installation of continuously read meters, the Climkit Gateway can regulate the available power allocated to the charging stations and also manage user access, where users identify themselves via RFID badges.

Wiring in an RCP

In a Climkit RCP (see Community - Electricity Metering - RCP), a meter is installed on each distribution zone feeder (flat cable). This meter is never installed behind the common area meter.

Wiring of the I/O Module

The I/O Module is used to detect a command from the DSO meter for load shedding of the charging stations.

2. Wiring Diagram - One Parking Lot and Multiple Feeds

When multiple power feeds are available for the same parking lot, each flat cable feeder (63A) is taken from one of the feeds.

Only one gateway and one 4G router are needed. Power regulation control meters are connected to the gateway via an RS485 bus or IP-Ethernet using RS485-Ethernet converters.

Option A: Charging station feeds from the common area DSO meter

In the diagram below, there are 2 flat cable feeds taken behind the common area meter of each building.

In this case, a Climkit meter for power regulation must be installed on the common area feed!

Option B: Charging station feeds from a dedicated DSO meter

In the diagram below, there are 2 flat cable feeds taken behind a dedicated DSO meter for the charging stations for each building. Therefore, it is not necessary to install a Climkit meter on the common area feed.

3. Flat Cable in Collective Parking Lots

For small installations, the few charging stations can be individually connected to the building's electrical panel and connected via Ethernet or Wi-Fi.

However, for larger parking lots, it is recommended to install a flat cable to bring electricity to each parking space, thus facilitating the installation of a charging station as residents wish to equip themselves.

This is what SIA 2060 level C1 recommends.

sia2060_c1.png

We recommend installing a 5x16mm2 flat cable from Woertz or Wieland along the parking spaces to be equipped.

The cable is fixed directly to the wall or ceiling with clamps.

Thanks to IP65 junction boxes with insulation piercing connections, the charging stations are then easily connected without cutting or stripping the cable.

The flat cable is powered via a 3P+N circuit breaker of max 63A from the electrical panel (provided by the electrician installer).

Although the number of charging stations per zone is unlimited, it is recommended not to connect more than 30.

Each charging station is then equipped with a 16A (11 kW) to 32A (22 kW) Type A RCD and connects to the management system via Wi-Fi.

Flat Cable Installation Example

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