Elektrická zařízení v prostorách s nebezpečím výbuchu hořlavých plynů, par a prachů – Pohludka Jan (2020)

Electrical equipment installed in areas at risk of explosions caused by flammable gases, vapours and dust, as well as in areas at risk of explosions caused by explosives, belongs to the most demanding categories of electrical equipment. Designing, installing, operating, maintaining, repairing, inspecting and testing such equipment places very high demands on electrical engineers at every stage of its development and use. The required knowledge extends beyond electrical engineering to chemistry, physics and other fields, while practical experience is essential for safe and reliable operation. Written by leading specialists in the field, this handbook is one of the few comprehensive guides to the subject. The classification of areas at risk of explosions caused by flammable gases, vapours and dust, together with the design and installation requirements for explosion-protected electrical equipment, is constantly changing in response to new technical knowledge and changes in legislation, standards and regulations. The third edition has been updated in accordance with legislative provisions and technical standards issued since 2012. The handbook provides practical advice and findings relating to the classification of hazardous areas, including areas at risk of explosions caused by gases and vapours, dust and explosives. Its general section describes the properties of flammable substances, their relationship to area classification and the individual types of explosion protection. It also includes practical instructions for determining the type and size of individual hazardous zones involving flammable gases, vapours and dust, together with examples and practical calculations for specific situations and equipment. Another section focuses on new requirements for the construction and constantly changing marking of electrical equipment for hazardous areas, including basic requirements for combining machinery and electrical equipment in these areas. The handbook then presents requirements for installing the individual types of explosion protection, including new requirements for electrical installations in areas at risk of dust explosions, as well as principles for the practical inspection, repair and maintenance of explosion-protected electrical equipment. A new chapter has been added concerning requirements for electrical