Cables entries

The connection of cables to the electrical equipment shall maintain the explosion protection integrity of the relevant type of protection. Where the certificate for the cable gland has an ‘X’ marking, this cable gland shall be only used for fixed installations. Where the equipment is portable only glands without ‘X’ marking shall be used.
Cable Entries into Ex d Enclosures
Two situations can be considered, direct cable entry (Ex d enclosures) and indirect cable entry (Ex d e enclosures - on Ex e part).
For the direct cable entry, to choose the correct cable gland the scheme shall be followed if it is not tested with the equipment.