Identify a zero fault - it may be life-threatening

Did you receive a message from us about a neutral fault situation? Here’s what to do:

Turn off the electricity using the main switch and wait for our confirmation that the situation has been resolved.

In storm situations, fixing a neutral fault may take longer than expected, as installers are also repairing other faults caused by the storm. You don't need to contact us.

Caruna has automatic monitoring for neutral fault situations. With the right actions, the situation can be quickly managed, so there is no need to worry.

By these signs you can identify a neutral fault

• Electrical appliances that use three phases, such as a stove, can work more or less efficiently.
• Electrical equipment may break.
• You may hear crackling and banging noises from the electrical panel, and you might smell something burning. Please note that a steady "electrical sound" from the panel is normal and not a sign of a neutral fault.
• Light intensity may vary, especially when other electrical appliances turn on or off.

Beware! If you touch metal-cased devices or surfaces (such as an electrical cabinet, kitchen sink, faucet, or shower), you could get an electric shock.

If the lights flutter and the electricity goes on/off, it is usually a question of electricity reconnections.

What do I do if I suspect a neutral fault?

1. Turn off the electricity at the main switch.

• Be careful! Use dry leather or rubber gloves when turning off the power, as the metallic frame of the electrical panel may be live.
• For safety reasons, open the electrical panel and touch the main switch with only one hand. Keep the other hand, for example, in your pocket.

2. Contact Caruna's fault service through the chat on this page (24/7).

• The fault service is also on call by phone at 0800 195 011 around the clock. During storm situations, the fault service number may be busy.

How does neutral fault arise?

In the event of a neutral fault, the neutral conductor of the electrical network breaks. At worst, it can increase the voltage from 230 volts to 400 volts. A voltage surge can break electrical appliances in your home and pose a risk of electric shock.

A neutral fault can also pose a risk of fire if an electric current tries to find a discharge route in the building's structures.

A neutral fault in the electrical network is usually caused by a fallen tree on the power line, which cuts the support rope of the hanging threaded cables of the low-voltage network. In professional terms, we are talking about a PEN conductor, which is a metal cable on which phase conductors hang between the poles.

If the neutral fault is on the side of the electrical network, good grounding will reduce the dangerous contact voltage. If you want to check the grounding of your building, please contact your electrical contractor.