The energy ministry is preparing a legislative revision designed to offer distribution network operator DEDDIE/HEDNO legal protection against transformer short circuits.

The revision, likely to be attached to a forthcoming urban planning bill, will oblige medium-voltage consumers to take appropriate action protecting their installations from damage that could be caused by short-circuit level increases.

DEDDIE/HEDNO is currently staging preliminary studies concerning an upgrade of the electrical distribution network’s transformers.

The energy ministry’s legislative revision will ensure that the distribution network operator will be spared of any legal issues should this upgrade have adverse effects on installations of medium-voltage consumers located up to 3 km from respective substations.

The ministry’s legislative revision will require consumers to inspect their electrical installations ahead of the operator’s upgrade of transformers. Should any issues be identified during these checks, consumers will need to replace any necessary equipment at their expense.

According to sector officials, the revision is essentially a precautionary measure as electrical equipment currently being used is relatively modern – less than 20 years old – with specifications to withstand increased short-circuiting levels.

Transformers in areas where investors have expressed interest to install RES facilities will be given priority by the distribution network operator during its upgrade process.