In explosion-prone industrial environments, every component of the cabling system must comply with the safety standards of hazardous areas. The explosion-proof cable gland is one of the key components in this structure, whose function is to seal the cable, provide mechanical restraint, and prevent the transmission of flame or flammable gases between equipment and the surrounding environment. The correct selection of a gland in accordance with ATEX and IECEx standards plays an important role in maintaining the protection class of the equipment and the safety of the entire electrical system. Compared to armored cable glands, this gland offers greater safety in sensitive environments with a risk of fire and explosion.
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An explosion-proof cable gland is a piece of safety equipment designed to prevent explosions in hazardous environments. Through the use of special materials and specific designs, these types of glands prevent the potential generation of sparks or excessive heat that could lead to the ignition of flammable gases or liquids. These features make the explosion-proof cable gland suitable for use in the oil and gas industries, chemical industries, mines, and other environments with high explosive potential, in order to maintain the safety of personnel and prevent unwanted incidents.
Glands are used to connect various equipment, including electrical conduits, to other equipment. The explosion-proof cable gland is a type of these products that, along with very high quality, can play a vital role in preventing the risks arising from explosions in sensitive areas. In terms of structure, the various types of explosion-proof glands can be divided into two categories: armored and unarmored.
Armored cables refer to a type of cable available in the market that has a protective metal layer made of steel to prevent pressure on the cable. This type of gland provides strong connections and can be used in environments where there is a possibility of gland ignition and explosion. This type of gland is used for cables that have a metal layer, or so-called armored cables. The structure of this gland consists of three parts and provides greater strength compared to the unarmored gland.
This type of gland is used on cables that are unarmored, meaning without a protective metal sheath. These glands can be used in environments prone to explosion risks. With the unarmored explosion-proof cable gland, strengthening costs can be reduced. Moreover, you must note that in conditions where there is no need for additional cable protection with armor, this product can be used. Unarmored glands have two pieces and sections and are used for cables without metal protection.
The explosion-proof cable gland is a product that plays a very vital role in achieving excellent performance in power distribution projects. Aside from its explosion-proof property, this product has other features as well, the most important of which are mentioned below.
High resistance to harsh environmental conditions: Explosion-proof cable glands are manufactured with very resistant metals such as brass, stainless steel, and aluminum. Brass, steel, aluminum, etc. cable glands can demonstrate good resistance to high pressure, high temperatures, and corrosion.
Leak-free: These glands can prevent the ingress of gas, liquids, and contaminants such as dust into the cables. In this way, they effectively protect electrical enclosures and can also maintain the safety of the equipment.
Compliance with international standards for their production: To achieve the best features and technical specifications, these explosion-proof cable gland products are manufactured according to various global standards, including ATEX, IECEx, and UL. Therefore, they are also fully approved by global standards in terms of quality and efficiency.
Ease of installation: Explosion-proof cable glands are manufactured in a fully engineered manner. The installation and implementation process of these products is very simple, and for this reason, they can effectively restrain and control electrical cables. In addition, due to their easy installation, these products can also be used in large and massive projects.
The explosion-proof cable gland, with the brand name explosion-proof cable gland, is a widely used component in cabling networks. Although many domestic manufacturers produce various types of explosion-proof glands in different sizes, this does not mean they cannot compete with foreign types in terms of manufacturing quality. On the contrary, domestically produced glands are all designed and manufactured based on a set of predefined standards and protocols.
Therefore, all the small components and parts of the explosion-proof cable gland have high compatibility and coordination with electrical cables in terms of scale measurement as well as size. Among the standards that manufacturing companies adhere to for producing these products are IECEx, ATEX, CEC, and NEC.
International institutions and organizations providing these types of standards specify what type of structure and with what dimensions and features a connecting part should be designed and manufactured. Therefore, you can also be confident that you have purchased a quality, domestically manufactured product.
One of the very important questions raised about the explosion-proof cable gland and other similar types such as the flexible cable gland is: what is their function? What threatens the connection point of a cable to an external device are factors such as dust, vibrations, moisture, various stresses in the form of applied tension, and other environmental pressures. The explosion-proof cable gland is installed at the end of a cable in such a way that these external factors cannot cause any damage to the cable connection point.
As you know, when the outer sheath of the cable is separated from the wire strands, it practically creates a vulnerable area. The brass cable gland and other types such as steel and stainless steel glands, due to having completely engineered small components, can completely neutralize the effect of environmental stresses at the cable connection point to the equipment.
The explosion-proof cable gland has very diverse applications in various industries. To become familiar with the scope of use of these parts in numerous work areas and environments, please refer to the following list:
Instrumentation and control systems
Data transmission networks and communication systems
Distribution and transmission centers for fuel elements such as gas and petroleum compounds
Machine tool systems and factories manufacturing automatic devices
Energy generation plants
Companies and centers dealing with flammable contaminants
Electrical current control and distribution systems such as various types of electrical panels
Companies producing and processing various types of explosive materials
Electrical cables are among the most sensitive elements, for the installation and connection of which to other parts, you must definitely ensure the establishment of safe and stable connections. The sudden detachment of cables from devices and electrical panels due to applied tensile force is always probable in industrial environments.
Consequently, we must use glands and connecting parts that have the power to keep the cables stable at the connection point to the device and other equipment. By using the explosion-proof cable gland in the mentioned environments, you can increase your productivity and work efficiency alongside high safety.
In order to support all existing electrical cables with different diameters, the explosion-proof cable gland is always offered in various sizes and dimensions. The most commonly used sizes available for glands include types PG16, PG20, PG25, PG32, PG40, PG50, PG63, and PG75.
Selecting the appropriate size of the explosion-proof gland is determined based on the size of the cables. Consequently, you cannot use glands with a larger internal diameter for cables with a smaller diameter, and vice versa, because these two have no dimensional coordination or compatibility with each other.
The functional mechanism of the glands is such that, by creating internal friction, it can lead to keeping the cables stable and preventing them from detaching from other parts and equipment. Usually, these glands support a specific dimensional range of cables. For example, gland gauge number 75 can support and hold cables with a diameter of 42.5 to 55 millimeters. Other gland sizes also support a specific dimensional range of cables in exactly the same way.
The highest quality types of glands in various sizes are available to customers at Rafi Industrial Group. You can purchase various types of armored glands, brass glands, as well as flexible conduit gland types and other widely used parts such as flexible conduit clamps at an affordable price and in large volume and high quantities from us. Dear customers, to receive precise technical information and details as well as to learn about product prices, please contact our experts.
