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DIN 51953

1975 Edition, August 1, 1975

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Testing of Organic Floor Coverings Testing of the Ability of Floor Coverings in Explosion-hazarded Rooms to Dissipate Electrostatic Charges



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Superseded By: DIN EN 1081

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ENGLISH * W/D S/S BY DIN EN 1081
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Description / Abstract:

Purpose and range of application

In rooms in which potentially explosive mixtures of gas and air can occur, high electrostatic charges on persons or objects, which could cause ignitable discharges, should be prevented by low resistance to earth.

The dissipation of electrostatic charges via a floor covering tested according to this Standard is ineffective when there are, e.g. shoe soles, wheels of equipment and tubing of non-conducting materials between the carrier of the charge and the floor covering.

In this testing, the leakage resistance of floor coverings is measured. The results of measurement obtained permit assessment of the ability of floor coverings to conduct electrical charges away to earth. The testings can be conducted on specimens or on the laid floor covering, whereby the effect of the conductivity of the adhesive and of the underlying layers is to be taken into account.

In the case of textile floor coverings, the electrical resistances are tested according to DIN 54345 Part 1. For other ranges of application, the appropriate provisions of VDE 0 100 "Regulations for the Installation of Power Systems with Rated Voltages up to 1000 Volts" are to be applied.