Ex ānā gland certification etc.
According to IEC60079-14, cable glands for Ex n (and for Ex e) must be certified as meeting the requirements of IEC60079-0.
Glands certified Ex e are suitable for Ex n use under the new standards.
Before 2007, it was only required that the impact and IP ratings for the type of protection were met, and some uncertified glands could fulfil these criteria.
Ex nR installation, and cable entries
You must consult he particular Ex nR equipment installation instruction
Gland entries on some Ex nR equipment require the use of special sealing arrangements. If so, restricted breathing seals or washers will be provided by the equipment manufacturer. The documentation will indicate if restricted breathing seals are required, or if normal IP seals may be used.
To maintain the restricted breathing properties of Ex nR equipment via the actual cable glands, certified Ex d / Ex e / Ex nR glands are now available, and should be used where applicable.
