The cable gland is an essential component in electrical installations. They are used to secure and seal the end of an electrical cable to the equipment it is being connected to. Cable glands provide strain relief, prevent cable pullout, and seal against dust, dirt, and moisture. In this article, we will discuss what cable glands are, their types, sizes, functions, and materials.
What is a Cable Gland?
A cable gland, also known as a cable connector or fitting, is a device used to connect and secure the end of an electrical cable to the equipment it is being connected to. Cable glands provide a safe and secure connection while also preventing the cable from being pulled out of the equipment. They are also used to seal the connection against dust, dirt, and moisture.
Cable Gland Types
There are several types of cable glands available in the market. The type of cable gland needed will depend on the specific application and the type of cable being used. Here are some of the most common types of cable glands:
Armored Cable Glands
Armored cable glands are used to connect and secure armored cables to equipment. These types of cable glands are specifically designed to provide a secure connection for cables that are exposed to harsh environments, such as vibrations, moisture, and extreme temperatures.
Non-Armored Cable Glands
Non-armored cable glands are used to connect and secure non-armored cables to equipment. These types of cable glands are designed to provide a secure connection for cables that are not exposed to harsh environments.
Explosion-Proof Cable Glands
Explosion-proof cable glands are used in hazardous environments where there is a risk of explosion. These types of cable glands are designed to prevent the spread of explosion by sealing the cable connection.
Cable Gland Size
The size is an important consideration when selecting a cable gland. The selected size should match the size of the cable being used. It is important to measure the diameter of the cable accurately to ensure the correct size of the gland is selected. They are available in a range of sizes to accommodate different cable diameters.
Cable Gland Function
Cable glands serve several functions, including:
- Securing the cable to the equipment
- Providing strain relief
- Preventing cable pullout
- Sealing against dust, dirt, and moisture
- Providing a safe and secure connection
Cable glands are an essential component in electrical installations. They ensure that the cable is securely connected to the equipment and provide protection against environmental factors.
Cable Gland Materials
Cable glands are typically made from materials such as plastic, brass, stainless steel, or aluminum. The material used will depend on the specific application and the environment the cable gland will be used in. Here are some of the most common materials used for cable glands:
Plastic
Plastic cable glands are lightweight and cost-effective. They are commonly used in non-hazardous environments where there is no risk of explosion.
Brass
Brass cable glands are durable and corrosion-resistant. They are commonly used in harsh environments where there is a risk of corrosion.
Stainless Steel
Stainless steel cable glands are highly resistant to corrosion and are commonly used in harsh environments where there is a risk of corrosion.
Aluminum
Aluminum cable glands are lightweight and corrosion-resistant. They are commonly used in non-hazardous environments where there is no risk of explosion.
Cable glands are an essential component in electrical installations. They provide a safe and secure connection while also protecting the cable from environmental factors. When selecting a gland, it is important to consider the type, size, function, and material to ensure that it is suitable for the specific application. By selecting the right cable gland, you can ensure that your electrical installation is safe, secure, and reliable.
