Inspection of Protection against electrostatic charges
Protection against electrostatic charges must be guaranteed in hazard zones, rooms and facilities belonging to fire hazard class A or B. The adequacy of protection must be certified with inspection.
In spaces belonging to fire hazard class A or B (zones 0, 1, 2 or 20, 21, 22), the electrostatic discharge may pose a significant risk, and must be taken into consideration as a source of ignition. This risk can be reduced by means of a proper design of the housing and using special tools and clothes in the given space.
The mandatory protection against electrostatic charge is inspected by means of a special high-voltage insulation resistance measuring instrument and search electrode, and includes the measurement of the leakage resistance of platforms and walls located in explosive atmospheres at several points and the evaluation of the measurement results. According to the National Fire Prevention Rules, special qualification is required for the inspection, which has been obtained by each expert of our organisation.
During the inspection and assessment we follow the contents of the relevant standards (knowledge base), and perform also risk assessments developed by EX-ON Engineering Ltd. on the basis of the measurement results, giving recommendations for the reduction or elimination of the risk of static charge and practical solutions applicable in the given field.
The inspection is required in Chapter XV of Regulation 28/2011 (6th September) BM on the National Fire Prevention Rules. The methodology of measurement is regulated by the following standards: Set of Standards MSZ 16041; Set of Standards MSZ 16040; Set of Standards MSZ EN 61340; Standard MSZ EN 1081:1999; Standard MSZ HD 60364-6:2007.
In accordance with Paragraph 233 of Chapter XIV of Part 3 of Regulation 28/2011 (6 September) BM, the following parties are authorised to perform the inspection: “a) an electrical engineer-expert registered at the Hungarian Chamber of Engineers, b) an officially electricity expert, c) an electrical fire prevention expert with electrical engineering qualification, or d) an accredited inspection institute or an organisation that employs an expert belonging to a) to c).”