CLC/SC 31-4 - Increased safety “e”

This part of IEC 60079 specifies the requirements for the design, construction, testing and marking of electrical apparatus with type of protection increased safety 'e' intended for use in explosive gas atmospheres. This standard applies to electrical apparatus where the rated voltage does not exceed 11 kV r.m.s. a.c. or d.c. Additional measures are applied to ensure that the apparatus does not produce arcs, sparks, or excessive temperatures in normal operation or under specified abnormal conditions.

This part of EN 62013 specifies requirements for the construction and testing of caplights, including caplights with a point of connection for another apparatus, for use in mines susceptible to firedamp (Group I - electrical apparatus for explosive gas atmospheres as defined in EN 60079-0). It deals only with the risk of the caplight becoming a source of ignition.

This part of EN 62013 details those performance and other safety features of caplights, including those with a point of connection for another apparatus, not covered in EN 62013-1, but which are important for the safety and working conditions of the user. It may also be applied to caplights for use in mines not likely to be endangered by firedamp.

Gives requirements for the design, construction, testing and marking of electrical apparatus, with a rated value of supply voltage not exceeding 11 kV r.m.s. a.c. or d.c., with type of protection 'e' that does not produce sparks, arcs, or dangerous temperatures in normal operation.

This European Standard prescribes the specific requirements related to the risk of a gas explosions for the construction and testing of caplights for use in mines susceptible to firedamp (electrical apparatus for potentially explosive atmosphere of group I). These specific requirements are supplemented by the following requirements which apply also to caplights for mines susceptible to firedamp: electrostatic charges of enclosures of plastic material and (permitted light alloys for enclosures) of EN 50014;internal connections, solid insulating materials and internal wiring of EN 50019

Specifies requirements for the construction and testing of caplights for use in mines susceptible to firedamp (Group I - electrical apparatus for explosive gas atmospheres as defined in IEC 60079-0). It deals only with the risk of caplight becoming a source of ignition. The requirements of IEC 60079-0 do not apply unless specified. Is also applicable to caplights intended for use in mines which have become temporarily endangered by an explosive atmosphere of firedamp.

Details those performance and other safety features not covered in Part 1 of IEC 62013, but which are neverthless important for the safety and working conditions of the user. It may also be applied to caplights for use in mines not likely to be endangered by firedamp. When this part of the Standard is used as a standalone document for non - gassy mines any relevent constructional requirements should be the subject of agreement between the supplier and the user and, where possible, be as described in IEC 62013-1

Supersedes EN 50019:1994 * Corrigendum to EN issued April 2003 * Superseded by EN 60079-7:2003

This European Standard specifies the specific requirements for the construction, testing and marking of electrical apparatus with type of protection increased safety e intended for use in explosive gas atmospheres. These specific requirements are additional to the general requirements in EN 50014 which are applicable to type of protection e. This European Standard applies to electrical apparatus with a rated value of supply voltage not exceeding 11 kV (d.c. or a.c. r.m.s.) that does not produce in normal operation sparks, arcs, or dangerous temperatures