Cable glands are crucial to any wiring system, ensuring the cables are secured and protected correctly. Knowing which type of cable gland to pick for the job can be daunting – with so many varieties available, each offering specific advantages, it’s no surprise that you might feel overwhelmed!
In this article, we’ll give you an in-depth breakdown of what to consider when selecting your cable glands: thread types to IP ratings and beyond, empowering you to make informed decisions that will cater perfectly to your needs. Click here to learn about the correct process of selecting cable glands!
How to choose cable glands
A variety of options are available, but there isn’t a universally-fit-all solution. However, it means you can pick a cable gland depending on the parameters you want. To do this, you must first consider various factors related to the environment and its application.
The importance of the environment
Whether you are employed in industrial, aerospace, marine, power and telecoms, utility, or another important sector doesn’t matter. The most important thing is to determine the main application area of that cable. It would help if you asked yourself these questions:
- Are you using it indoors or out?
- Will it be in a secure industrial zone or a hazardous or explosive area?
- What’s the temperature, and is it always the same?
- Is the area dry or dusty?
- Are there any gasses or corrosive materials in the vicinity?
Your answers will assist in determining the specs of the cable gland and whether it needs a specific protective coating or plating.
The goal of armoring cables
Different cables require different kinds of cables and cable glands. For example, the specifications for armored cables, known as steel wire armored (SWA), differ from those for unarmored cables. The armored or SWA cables are installed for exterior walls and voxbliss underground.
Does armored cable require the use of conduit?
Typically, no. They’re armed to protect. It is recommended to use a conduit for cables that are not armored. However, using a conduit for unarmoured cable would be best.
IP-rated cable glands
Cable glands are made with security in mind. Therefore, they are equipped with an IP rating to ensure you get what you pay for. The Ingress Protection Marking (IP) grades the glands based on their appearance and performance in various applications. These ratings usually rise to IP68 or IP69K. Ensuring that all devices used in an explosive environment comply with the international or national codes of conduct is important.
Cable glands are Bulkheads, allowing barrier penetration and protecting sealing. They are often referred to as strain reliefs. They can seal around single-wire cables, probes, or wires. They can be configured to use any cable in a specific size range.
They perform several functions, including protection from the environment (such as protecting against moisture and dust) and further sealing the portion of the cable that enters the enclosure. They can facilitate earth continuity within the case of armored cables and serve as a holding force to the cable to provide sufficient pull-out resistance. Cable glands are used for all electrical cables, including control, power, data, and telecommunications therightmessages.
When choosing a cable gland, there are various steps to ensure that the correct cable gland is utilized. It is the first thing to select the type of cable to be used, and after that, check the quality, size, dimension, and characteristics of the particular cable.