Classification of premises according to the degree of danger of electric shock. Occupational Safety and Health

OCCUPATIONAL SAFETY AND HEALTH
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Classification of premises according to the degree of danger of electric shock. Occupational Safety and Health

Occupational Safety and Health

Occupational Safety and Health / Legislative basis for labor protection

In accordance with the PUE, according to degree of danger of electric shock to people premises are divided into the following types:

1. Premises with increased danger

They are characterized by the presence of one of the following conditions:

conductive dust;
conductive floors (metal, earth, etc.);
high temperature (above 35°С more than 1 day);
relative humidity (above 75% for more than 1 day);
the possibility of simultaneous contact of a person with the metal structures of buildings, technological equipment connected to the ground, on the one hand, and to the metal cases of electrical equipment, on the other hand.

2. Premises especially dangerous

Are characterized by the presence of one of the following conditions that create a special risk of electrical shock:

special dampness (humidity about 100%);
chemically active or organic medium acting on the insulation (acid, alkali vapors, mold, fungi, etc.);
simultaneous presence of two or more conditions for premises of increased danger.

3. Premises without increased danger

They do not contain conditions that create an increased or special danger.

Authors: Fainburg G.Z., Ovsyankin A.D., Potemkin V.I.

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