How to act in the event of an electrical disturbance

If the power is out only at your location, the fault could lie, for example, in your property’s main fuses.

Follow these steps:

• Check whether the main fuses are intact. If a main fuse has blown, call our fault reporting number at 020 690 590 for instructions on how to proceed.
• Check whether the other fuses are intact and replace them if necessary.
• If the fuses have been checked and are intact, but you are still experiencing electrical problems, call our fault reporting number at 020 690 590.

Replacing the main fuses

If electricity is lost—either completely or partially—within a property, it may be due to a blown fuse. Such fuses include main fuses and branch (circuit) fuses, which are located in the property’s electrical distribution board. The responsibility for these fuses and their replacement lies with the property owner, subject to the following conditions:

• Main fuses located inside the property’s main distribution board may be replaced by the customer, provided that electrical safety instructions are followed. Remember to switch off the power using the main switch—turning it to the ‘0’ position—before attempting to replace a fuse. Guidance on how to replace a main fuse yourself can be obtained by calling our fault reporting number at 020 690 590.

• Main fuses located in an enclosure on the building’s exterior wall (connected to an overhead line) may only be replaced by a qualified electrical professional. Main fuses located on a utility pole or in a distribution cabinet may only be replaced by an on-duty technician from the Kerava Energia companies. If you would like a representative from our company to replace the main fuses, please call our fault reporting number at 020 690 590. A service fee, in accordance with our price list, will be charged for the technician’s visit.

• If a main fuse blows repeatedly, it is likely that the connection’s main fuses are undersized for the current load, or that the electrical load is unevenly distributed across the fuses. If a new fuse blows immediately after being replaced, there is a fault in the wiring or in one of the electrical appliances. To resolve the issue, you should contact an electrical contractor, who will determine what repairs or modifications are necessary.

• If the fault does not lie with the fuses, check the property’s low-voltage wiring (if possible) and, if necessary, contact an electrical contractor.

Lights flicker when another electrical appliance is used

A fault may exist in the PEN conductor of the low-voltage line, which could have broken (a “neutral fault”). In this case, take the following steps:

• turn the main switch to the 0 (off) position to avoid the danger caused by overvoltage,
• if possible, check the property’s low-voltage wiring and, if necessary, contact an electrical contractor,
• call our fault reporting number at 020 690 590 or submit a fault report at kerava.aidonone.com.

During stormy weather, if you suspect a neutral fault, you should always contact the electricity network company’s fault service; a possible cause could be a tree falling onto the line, resulting in a broken neutral conductor.