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Inspections Decree 508/2009 Coll.

Employers businesses communal parts of a building

Electrical inspection intervals

Decree No. 508/2009 Coll. sets the intervals by type of building and by environment. Where they differ, the shorter applies. The operator is responsible for keeping to them. If you are not sure which row applies to you, call us.

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Electrical installation

Building Interval Regulation
Flat or family house — owner-occupied No interval set by law¹ Act 124/2006 Coll., § 13(7)
Flat or family house for rent No interval set by the decree¹ Decree 508/2009, Annex 8
Apartment building — communal areas and risers 5 years² Decree 508/2009, Annex 8, Tables A and B
Masonry office building 5 years² Decree 508/2009, Annex 8, Tables A and B
Warehouse 1 to 5 years by environment Decree 508/2009, Annex 8, Table B
Hotel or other accommodation 3 years² Decree 508/2009, Annex 8, Tables A and B

Lightning protection

Building Interval Regulation
Lightning protection (active too) — protection level I and II 2 years³ Decree 508/2009, Annex 8, Tables A and B
Lightning protection (active too) — protection level III and IV 4 years³ Decree 508/2009, Annex 8, Tables A and B
Lightning protection of a building with an explosion hazard 1 year Decree 508/2009, Annex 8, Table A

Inspection in use

Building Interval Regulation
Electrical appliances and hand tools Intervals set by the standard STN 33 1630 (until 1 May 2027 also STN 33 1600, 33 1610)

Notes

Mark Note
1 Whoever has concluded a connection contract must give the distribution operator the inspection reports within 90 days of being asked (§ 39(9) of Act No. 251/2012 Coll.).
2 A shorter interval applies under the external influences in Table B (such as water, dust, corrosion or flammable substances), in a building made of combustible materials and in a high-rise building (2 years). For an installation whose environment protocol was drawn up by 31 January 2009, STN 33 1500 sets the intervals.
3 If the environment under Table B sets a shorter interval, the shorter one applies.
Insurance If the insured knowingly neglected an inspection required by law or by the policy, and that substantially contributed to the damage, the insurer may reduce the payout proportionately and, under some policies, refuse it.

A family house you live in yourself has no mandatory periodic inspection, but the distribution operator may ask for the report (note 1). We carry out the electrical installation inspection and the lightning protection inspection.

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