Can you put multiple cables through a cable gland?

Aug 29, 2022

Can you put multiple cables through a cable gland?

It is not possible to thread more than one cable through the same cable gland or increase the diameter of the cable jacket with friction tape or whatever to match the gasket diameter.

Cable glands comply with EN 60079-1 and must be certified and marked. They may vary depending on their intended use.

This standard specifies various cable entries into electrical equipment, such as:

  Use sealed multiple hole cable glands for cable installation;

  Cable installation using sealed multiple hole cable glands;

  Cable mounting and sealing accessories.

Usually they fall into two categories:

   with compression seal

“barrier”

These categories are then divided based to the cable use in:

   for armored cable

   for non-armored cable.

Select the cable gland according to the diameter of the cable. Sealing is ensured by compressing a rubber gasket that squeezes the outer diameter of the cable and stops flames from spreading outside the enclosure.

The spacer is usually as long as the longest part of the lamination joint. Some cable glands with shorter gaskets are available for enclosures where the internal volume is limited by certification. The minimum and maximum diameter of the cable is indicated on the gasket. It is not possible to thread more than one cable through the same cable gland or increase the diameter of the cable jacket with friction tape or whatever to match the gasket diameter. The cable glands for armored cables have two gaskets: the first one is used to fix the inner diameter of the cable and guarantee explosion protection, and the other one is used to fix the cable jacket and prevent liquids from penetrating the cable gland. This is where the armor is held in place by two tapered rings to ensure electrical continuity of the ground connection.

If you have to remove the cable gland for factory maintenance, it is recommended to replace the gaskets as they may no longer be reliable. Barrier cable glands use resin to seal the cable within the sleeve, which is inserted into the cable gland to form a laminated joint with the interior of the structure. This means the cable gland can be removed for maintenance and then easily reinstalled. The only thing to remember is to check that the surface of the accessory is intact. All types of cable glands must be used in accordance with the standard EN 60079-14, which describes the following diagram to select the correct cable gland.

Multi-hole cable gland is made by Nickel-plated brass, size is M12-M32; PG7-PG21

The hole could be 2, 3, 4, 5, 6, 7, 8, 9 holes, Customization service is available.

Bolun cable gland is manufacturer for cable gland, nylon/plastic cable gland, metal cable gland, stainless steel cable gland, and accessories. several years, with the strength, with good quality and pretty competitive price. Should you have any questions, pls do not hesitate to contact me.

Ms Miya: boluncablegland@gmail.com

Whatsapp: +86 181 0679 6660