Measurements and automation

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PERIODICS FOR PERFORMANCE OF CONTROL

Subject of controlObject of controlPeriodicity of controlDocument, reference
Earthing systemsResistance of earthing conductors to earthAt least once a yearOrdinance №16-116 for TEE from 08.02.2008. , art. 261 (1) item 6 and (3)
Resistance of the neutral conductor to ground in a network with a directly grounded star center in which zeroing is usedAt least once every 5 yearsOrdinance №16-116 for TEE from 08.02.2008. , Article 261, items 7 and (4)
Protective loop impedance (L-PEN)At least once every 5 yearsOrdinance №16-116 for TEE from 08.02.2008. ,,

Article 267, (2) item 3

At each initial commissioning of systems, equipment, machines, devices, installations, etc.Ordinance №16-116 for TEE from 08.02.2008. ,,

Article 267, (3) item 1

After each relocation and commissioning of a new workplace facilities, machinery, equipment, etc..Ordinance №16-116 for TEE from 08.02.2008. ,,

Article 267, (3) item 2

After repairs and reconstructions affecting the efficiency of zeroing (affecting electrical installations)Ordinance №16-116 for TEE from 08.02.2008. ,,

Art. 267, (3) v.3

Circuit breakers (CB) and earth resistance of the safety earthApparatus for protection against residual current (Nitrogen) or CB (from currents with zero sequence)At least once a yearOrdinance №16-116 for TEE from 08.02.2008. ,,

Article 266, (3)

Insulation resistanceMS,S  control panels, etc. Power and lighting installations, secondary circuits, power receiversUpon commissioning and deadlines set by the energy sectorOrdinance №16-116 for TEE from 08.02.2008. ,,

266, (1) and (2)

Lightning protection earthingResistance of individual grounding conductorsAt 1, 2 and 3 years depending on the categoryOrdinance №4 on lightning protection

22.12.2010 Article 177 (2)

Level of general illumination and illumination at control points At least once a yearOrdinance №16-116 for TEE from 08.02.2008. ,,

Art. 391.1 and 2

Noise exposure level in the work environment At least once a yearOrdinance №7 of 23.09.1999 ,,

For work equipment art. 135

Microclimate The periodicity of the measurements is in accordance with the deadline set by the employer for reviewing the risk assessment.Ordinance №7 of 23.09.1999 ,,

Art. 18, para 1

Air conditioning and ventilation systems At each initial commissioning.

When using an air conditioning or ventilation system, workers must not be exposed to harmful air currents.

Наредба №7 от 23.09.1999г. ,

чл.124 и чл. 127 ал.1