What is a Parallel Groove Clamp for Medium Voltage Lines?

In the field of overhead power distribution, ensuring a reliable, secure, and durable electrical connection is essential. One of the essential components used to achieve this in medium-voltage lines is the parallel groove clamp.

These clamps are used for both non - bearing connections and branching of conductors.

The pg clamp are typically made of high-strength aluminum alloy or copper, depending on the conductor material, and feature a bolted structure to ensure a reliable connection.

What Kind of PG Clamp Does Jera Ling Manufacture?

Jera Line, a leading manufacturer located in China, has been specialized in low tension (LT) line and high tension (HT) line cable accessories for over ten years. Jera Line offers three types of parallel groove clamps for the market, which are as below:

• Specification

• Key Components

Jera Line’s ht line pg clamps are typically made of two main components. 

1. Main Body: Jera Line’s PG clamp is made from aluminum material. The parallel grooves are on the PG clamp’s inner surfaces, and the number of them is two. These two grooves are contoured to fit the shape of the conductors precisely. When the clamp is secured, these parallel grooves create a broad and consistent contact surface. This ensures a firmer hold on the conductors, minimizing the chance of loosening over time due to thermal cycling, vibration, or wind-induced movement in overhead line systems.

2. Connection Structure: Jera Line’s HT line parallel groove clamp are use screw, washer and nut to achieve a connection. They are made from hot dip galvanized steel for high corrosion resistance and Long-term durability.

3. Groove: The PG clamp features two internal grooves designed to hold the conductors. When the screw is tightened, the conductors are securely locked in place, preventing any movement or slippage. As for Jera Line’s PG-AL-16-120/16-95-2S, it is designed for connecting bare cables to insulated cables. One side of the groove is constructed with piercing teeth, which enables connection of insulated cables without stripping the outer sheath.

• Key Features

1. For low and medium-voltage cable usage
2. For bare-to-bare or bare-to-insulated conductors
3. Compact size, easy for carrying and installing
4. High mechanical strength ensured by reliable materials and structure
5. A tight connection ensures electrical performance and prevents corrosion and rust.

Why Choose Jera Line as Your Parallel Groove Clamp Connector Manufacturer?

As a manufacturer integrating trading operations, Jera Line not only manufactures products but also engages in the foreign trade industry. Choosing Jera Line will be truly convenient and reassuring, and the advantages are as below:

• Competitive Price

Jera Line as a direct manufacturer, with large - scale raw material purchasing, can have lower costs than those from a pure trading company. Purchasing from Jera Line will help you save more costs.

• Large -Scale Production Facilities

Jera Line is equipped with professional facilities such as plastic injection moulding workshops, moulding and tooling workshops, press forming workshops, along with an assembly workshop where skilled assemblers work. Relying on these facilities, Jera Line is capable of conducting manufacturing operations.

• In House Laboratory

Jera Line establish its own in-house laboratory to test products when manufacturing. Excellent production process inspection ensures high-quality of products of each production batch. Jera Line’s laboratory is able to conduct tests such as:

Mechanical Pull - Out Test – Checks the gripping strength under tensile force​

Torque/Clamp Force Test – Assesses the tightening properties and contact pressure​

Corrosion Resistance Test – Imitates environmental exposure to evaluate long - term durability

• Great After-Sales Support

The after-sale service is essential in the business. Offering extensive after-sales support, Jera Line stands out with prompt responses and expert technical guidance, aiming to furnish customers with quality assurances and leave them without any worries.

• Raw Material Quality Control

The PG clamps are made from pure metals, so material quality control is quite important for this product. Proper management of raw materials is only the first step in Jera Line’s quality management process. Only by getting this step right can the subsequent work proceed smoothly.

Conclusion

Jera Line produces a variety of cable accessories for lt line and ht line usage. Choosing Jera Line to increase your bid-winning rate or expand your product portfolio is definitely a wise decision. 

Please don’t hesitate to contact us!