Electrical cables are made to various sizes and types, and there are different forms and configurations of the metal claddings and/or armour sheathings that have to be accommodated in the assembly and use of cable glands. Cable glands are commonly employed to seal cable entries to junction boxes for increased safety, particularly in hazardous environments, and provide a flame-proof path to contain any explosion occurring within the junction box. Cable gland assemblies typically provide a seal and a mechanical or electrical connection between a cable and a wall through which the cable passes. Cable glands for connecting an electric cable to a piece of equipment such as a junction box are known for use in hazardous environments to provide a sealed entry for the cable to contain any explosion occurring within the equipment. Electrical cable glands can be made to various different specifications such as, being simply waterproof, flame proof, or even explosion proof. Such cable gland arrangements often include a differential nut or sleeve, and co-operates with a complimentarily screw threaded socket or thimble forming part of the cable gland. The surfaces of such screw threads often communicate between the exterior of the cable gland and a position in between the inner and outer electrically insulating sheaths of a cable in use. Some cable glands used for termination of electric cables are of the type including a barrier which prevents the ingress of liquid, gas or solids into the interstices of the cable and the space between the cable cores when the cable sheathing has been removed to allow connection of the cable conductors to some electrical equipment.
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