Glands in the electrical trade are used to make a seal between two electrical components. For an example; a cable coming into a weather proof junction box requires a sealing gland connector to keep the integrity of the junction box's weather proof rating where the cable enters into the box.
Gland also used to ensure that the metallic armor is in contact with the cabinet on which it gets fitted. But these days where plastic boxes and plastic glands are being common this practice is rarely applied nowadays.(In India)
Gland ensures that there is no unnecessary pressure, stress on the cable conductor, but firmly holding it on to while providing a reliable entry of the cable into the box.
In North America any cable holding device that is not water proof is called a cable connector.
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role of national electric code in the design of electrical installation
can u give me unswer the ELECTRICAL POWER INSTALLATION?
Purpose of Electrical RegulationsThe regulation of the use of electricity came about for the safety and protection of life and property. If electrical wiring and devices are used in an unsafe manner, it is very possible that electrocution or fires can result from failure to follow safe practice.Therefore, it is very important that electrical design, installation, and use be done properly, by workers who are properly trained and experienced.
Same installation as non armored cable.
Ah, the beautiful world of electrical installations! In BS 7671, the chapter you're looking for is Chapter 42. This chapter specifically focuses on the installation of electrical machines, including rotating machines. Remember, each chapter in the regulations is like a happy little tree adding to the big picture of electrical safety.