A cable gland is a device intended to join and tie down the finish of an electrical cable to the electrical equipment. A cable gland is defined as a “mechanical cable entry device” which is used to link the wiring for electrical, instrumentation and control, automation structure including lightning, power, and telecoms.
A cable gland is utilized as a sealing and termination device to guarantee the characteristics of the enclosure in which the cable enters can be maintained properly. Cable glands are made up of different plastics, aluminum, brass, or steel.
Cable glands are generally known as “connectors”, which distinguishes them from quick-disconnect, conducting electrical connectors.
Functions of a Cable Gland:
The very main function of a cable gland is to act as sealing and terminating to ensure protection to the electrical equipment and keep the electrical cable intact. Apart from this, other functions are as follows:
>> Environmental Protection: Cable glands give protection against water and dust through its seal on the outer covering of the cable, eliminates/block the moisture on the electrical equipment or enclosure.
>> Holding Capacity: Cable glands provide support to the electrical cable from getting pulled out.
>> Extra Sealing: It provides additional seal protection at the cable enclosure when a high level of protection is required.
>> Good Earth Continuity: Earth continuity can be provided for armoured cables in case the cable gland has a metallic construction characteristic.
Cable glands must adjust as per the environment the cable is in. If the cable is in a hazardous environment, the cable gland must be powerful and rigid. In a nutshell, the more important an electrical cable is, the more protection a cable gland should provide.