Combining the flameproof enclosure and increased safety types of protection

Ex d flameproof enclosure is the most important type of protection for switchgear – usually combined with the Ex e increased safety type of protection. The Ex e type of protection involves taking measures to ensure an increased degree of safety in order to prevent sources of ignition being created. However, since switchgear produce sources of ignition during normal operation, for this degree of protection it is not enough for equipment to have an explosion-protected design. Together with the flameproof enclosure, increased safety plays an important role for switchgear too. A combination of multiple types of protection is likewise used for modern explosion-protected light fittings so that they are as safe, effective and economical as possible.