All electric and telecommunication installations have two main components, namely cable/conductor and poles/towers. These cables need to be fixed firmly or hanged to the pole or tower, but how to do that? Well, we have got a handy tool for that, i.e., a suspension clamp. Suspension clamp is also known as clamp suspension. In simplest terms, a suspension clamp is a clamping tool or fitting accessory, which is used to hang conductors/cables to a tower or a pole. Different types of suspension clamps will be discussed in the later sections of this article. A suspension clamp is one of the valuable tools for an overhead line. The basic suspension clamp assembly consists of a clamping member that clamps the cable or conductor along a portion of its longitudinal sides. ABC cables are hanged with a suspension clamp’s help through different hanging angles, thus providing them enough protection and support.
Types of Suspension clamps
There are multiple types of suspension clamps. Some of them are as follow:
1.Single and double conductor suspension set
In this type of suspension fitting, the fulcrum of suspension dispersed the stress to the preformed rod, which minimizes the static and dynamic pressure of the cable or conductor. This fulcrum also keeps the cable or conductor from any damage. This dispersion of stress increases the fatigue resistance of the conductor. An excellent grip to the suspension rod is provided by designing a preformed rod and suspension clamp to avoid the conductor’s slip. The clamp is designed to enhance the rigidity of the conductor’s fulcrum and augment the curvature radius.
2.Single suspension set for Optical ground wire (OPGW) cable
This type of suspension clamp is also known as a helical suspension set. It is used to hang optical fiber cables on straight poles or towers. They transmit axial load and divert axial pressure, thus keeping the cable safe from any damage.
3.Double suspension set for OPGW cable
This type of suspension clamp is used to connect OPGW cable and pole. The clamp reduces static stress to the OPGW cable at support points, and it increases the anti-vibration ability of ADSS cables, cushioning against the dynamic stress. The suspension clamp also reduces the cable bending so that the cable doesn’t produce extra loss after the installation.
4.Double suspension clamp
This type of suspension clamp is designed to reduce static stress at the support point of the ADSS cable. The clamp also protects against the dynamic stress of Aeolian vibration. Moreover, the combination of HSU and armor rod gives extra protection against cable bending stress. Double suspension clamps are primarily used for ADSS installations on poles/towers with large falling heads. The span length of this clamp is above 800m.
5.Midspan/Long span suspension clamp for All-dielectric self-supporting (ADSS) cable
This type of suspension clamp is used to protect ADSS fiber cable to operate safely under an unbalanced load condition. The clamp also improves the anti-vibration energy of the cable. The suspension clamp with a double-layer helical rod is designed for a span length of 300-400m. The clamp is made up of high-strength aluminum alloy.
6.Short span suspension clamp for ADSS cable
This type of suspension clamp is used for ADSS cable for span length less than 100m. The suspension clamp protects the cable against any bending, dynamic, and static Aeolian pressure and other shocks that might damage the cable.
Advantages of suspension clamp
Suspension clamps are handy accessories to hold cables or conductors in place. The clamp protects the wire against any bending, static and dynamic stresses due to Aeolian pressure. The other benefits of suspension clamp include prolonged life span of wire, safe mechanical connection in all conditions. It allows controlled movement for cable, etc. Hence the suspension clamp ensures the efficient working of cables.
Since the characteristics and advantages of suspension clamp are discussed in detail. Suppose you are interested in buying a suspension clamp or other wire cable fittings for your overhead cables. Then you should choose Henvcon because Henvcon is a leading manufacturer of power cables and wire accessories. Henvcon deals in every type of wire accessories. Their products are of the highest standards, in addition to that, they have more than seven years of experience. So what else do you need? Contact them, and they will get back to you with the best solution.