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Conductive Floors

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Conductive Floors

Conductive floors are required in potentially explosive areas of Zone 0, Zone 1, Zone 20 and Zone 21 for dusts with a minimum ignition energy of < 10 mJ. A floor is conductive as defined by TRGS 727 if it has a leakage resistance of <108Ω.

The leakage resistance of floors can be determined in the laboratory under defined conditions as well as directly on site.

Leakage resistance can be determined according to the following test standards and depending on the application:

  • DIN EN 61340-4-1: Electrostatics – Part 4-1: Standard test methods for special applications – Electrical resistance of floor coverings and installed floors
  • DIN EN 1081: Resilient, laminate and modular multilayer floor coverings – Determination of electrical resistance

Conductive floors

On-site testing may be necessary because the plant operator must regularly verify the discharge capacity of his floor as defined in the German Industrial Safety Regulation (§ 15 and 16 BetrSichV in conjunction with Appendix 2 Section 3 (5)), provided that this floor is present in Zone 0, Zone 1, Zone 20 and Zone 21 where dusts with the minimum ignition energy of < 10 mJ are present.

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