What standards apply to EV installations?

The Flat Cable is an energy bus for decentralised powering of charging stations in parking garages, for example.

Charging is not just charging, it can be fast or slow or in between.

On the road, you want to charge quickly to continue your journey quickly. But this is only necessary if you are on the road for whole days or on a long trip.

Charging station or alternative....
In the Netherlands, you can charge your car in lots of places. Just plug in the car, hold your card against the charger and charge away. You will automatically get monthly bills.
There are already a lot of charging stations in the Netherlands. But we also see many so-called wall boxes.
In most cases, a charging station between 11kW and 22kW is excellent for charging the car in the evening and at night. Even during office hours, there is plenty of time to have the car ‘recharged’ for the journey home.
The best solution is chosen depending on the application and infrastructure.
If the charging station can be wall-mounted, it saves a lot of work. No foundation is needed. Additional work to lay an ‘expensive’ ground cable can also be omitted.

Compared to other household appliances, a charging station requires quite a lot of power. And also for a longer period of time. Therefore, a separate group is needed.

Along the roadside, large charging installations allow a lot of charge quickly. That’s not necessary at home. On your driveway, a wall-mounted charging station may suffice.
If you don’t have parking facilities right by the house, you often have to rely on roadside charging stations.
But there are many more applications, for example in parking garages, next to or under apartment blocks, shopping centres, office buildings, hospitals, cinemas, restaurants or factories.
In any place where multiple charging stations are placed against a wall, using the Flat Cable is the ideal solution.

Each charging station is connected to a group with a power cable.
If multiple charging stations are placed in one location, extra attention must be paid to the electrical infrastructure.

Before installing a charging station, an electrical connection must be installed.
Connecting one single charging station is usually not a problem. One extra group and one cable will then suffice. Individual charging stations have already been installed in many places.
Connecting multiple charging stations to one distribution box takes up a lot of cabinet space and a lot of power cables.

If multiple charging stations are needed, the possibilities should be carefully considered.
Is it new construction or existing construction? What space is available in the group cabinet?
Is the main fuse adequate? And can the main connection – the cable from the street – handle it?

In a parking garage, a cable duct is often installed to accommodate the installation of lighting, for example. If there is a need for one charging station, this cable duct is used.
Installing multiple charging stations requires a much more robust installation.

With 20 charging stations, it means that 20 fuses need to be placed in the distribution box. And 20 cables will also have to be laid, one to each charging station. A separate cable duct is therefore unavoidable.
Installing a power bus using a flat cable makes installation much easier.
No separate cable duct is required. The flat cable is simply mounted against the wall with the specially designed brackets.

The power bus is a flat cable to which charging stations can be connected.
The Flat Cable is mounted against the wall or ceiling.
A branch point can be mounted at any desired location to which a charging station is connected.

If an additional charging station needs to be connected at a later date, it is easy to do so.
A basic installation is fitted fast and flexibly using the Wieland flat cable
The flat cable is very easy to mount against a wall or ceiling. The number of charging bays to be connected can be tailored to current demand. If more charging spots are needed over time, the installation will be easy to expand.

The Flat Cable is ideal for car parks, both covered and open.
Even in places where several charging stations are placed against a wall, the Flat Cable is the ideal solution.

A hybrid or an all-electric car, fast charging or trickle charging. It all requires its own approach. Each application requires a different charging station, each with its own power cable.

There are several charging methods.
2.3 kW Charging using a 230V socket and 10A.
The charging capacity is limited, so charging can take a long time.
Good for pluggable hybrid cars where the battery is often only 7–10 kW.
3.7 kW Charging via 1-phase 230V max. 16A.
The charging capacity is limited, so charging can take a long time.
Good for pluggable hybrid cars where the battery is often only 7–10 kW.
It is slightly faster than the above option.
11 kW Charging with 3-phase 230V 16A.
For many all-electric cars, this is a good solution that can also be installed ‘at home’ without a very heavy expansion of the meter box.
22kW Charging with 3-phase and 32A.
This application is for higher power but still fine at home. However, a 3x35A connection is required.
50kW This application can only be done with a separate power supply.
The power required is high. But the car charges up nice and fast.
150 kW Special installations are required at these capacities. It costs a bit, but the car is properly recharged in a very short time.
350 kW For those for whom all the above solutions take too long.
Special installations are required at these capacities. It costs a bit, but the car is properly recharged in a very short time.

The more power is available the faster you can charge.
How much do you actually need? It depends on the car and how fast it needs to be charged. Often, the faster the charge, the more expensive it is. So why charge fast if you don’t need to.

For an average car, the values below apply.

230V power supply power phases After 1 hour For 100km
2.3kW 10Amp 1f 11km 9h
3.7kW 16Amp 1f 17km 6h
11kWh 16Amp 3f 55km <2h
22kWh 32Amp 3f 110km <1h
Not every solution is applicable everywhere

In new construction but also in existing construction, you need to investigate what space is available electrically. Two aspects come into play here; firstly what can the energy supplier offer and; secondly how big is the space on the meter box.
But it much better to ascertain what space you actually need. In fact, there is no need to maximise charging for all cars at the same time.
How many cars can you charge in a night and how much energy do you need to do that?
Below is a calculation.

3 x 230Vac x 63A = 43.5kW x 5km/kW = 217.5km
After an evening/night of 10 hours, 2175km has been charged / 20cars = 109km per car.

On average, electric cars in the Netherlands drive 40km/day. So there is ample capacity to charge each car sufficiently.

In principle, any professional installer can fit the Flat Cable.

Any professional installer can expand the installation, but we see more and more installers turning to installing charging stations. They supply the charging stations and make sure the power cables are neatly connected. Most specialists are aware of the Wieland Flat Cable.
If you are an installer yourself and would like to use the Flat cable, please contact Isolectra.

Any charging station that can be powered by 230/400Vac fits the Wieland Flat Cable.

In principle, any charging station suitable for 230/400Vac can be connected to the Flat Cable. Of course, the maximum current through the power bus must be taken into account.
The 5x16mm2 Flat Cable can easily deliver 80 to 100 amps per phase.

Often an existing installation (3X50 amps) is more than enough to properly charge several cars. If the demand is more than 50 amps, the charging stations can be tuned so that no more than the maximum 50 amps will ever flow. This is called load balancing.

If you want to have a charging point on your own allocated space in an apartment building parking garage, you will need permission from the general membership meeting of your HOA. This is often included in the HOA regulations.
The installation of charging units is not mandatory for HOAs, but this obligation exists in new construction and when renovating a residential building. For every 10 parking spaces, there should be at least one parking space with a charging station. This applies to parking garages and also to street-level parking spaces.