Protective Fitting

Your Professional Protective Fitting Supplier

 

 

Shandong Ruineng Electric Group Co., Ltd. was established in 2012, that is located in Maji Industrial Park, Economic Development Zone, Jining City, Shandong Province, China. It has been dedicated in the design and manufacture of the electric power fitting and fiber optic cable fitting. and covers an area of more than 30,000 square meters, registered capital of 118 million RMB, that is a collection of design, research and development, production, sales and service and integrated power system materials suppliers and has become one of the top electric power fitting and fiber optic cable fitting manufacturers of China.

 

Why Choose Us

Our Certificate

Currently, the company has 36 utility model patents and 7 invention patents, and has successfully obtained ISO9001, ISO14001, and ISO45001 certifications.

Custom Service

Forged steel products, aluminum alloy products and cast iron products are our main products. We can customize the products that customers want, and we also accept OEM and ODM services.

Our Service

Before cooperation, we can provide free samples to our customers and we also support customization. After the cooperation, we will ensure quality and quantity, and strictly control production according to customer requirements.

Professional Team

We have a professional team. Whether it is power line fitting or substation fitting, even without reference drawings and samples, customers only need to provide some basic information about the use of the product and the technical requirements of the product itself, and our technical team can propose our solutions within 24 hours.

 

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Our Protective Accessories Include
 

Preformed Armor Rods

Preformed Armor Rod are designed to protect cable against bending, compression, abrasion, and flash-over. They are also used to repair damaged aluminum-based conductors and restore the conductors' mechanical strength and conductivity.

Vibration Damper

Preformed Vibration Damper install on the conductor and earth wire to decrease the wind vibration, protect the conductor, earth wire and fitting, prolong the system's life.

Armor Rods

Armor Rods are used for protecting conductor from damages subjected to vibration, clamp stress, friction, electric arc & other external influence. The preformed armor rods can prevent conductor from damage of electric arc, friction and other reasons on slight vibration short-span transmission line.

Spiral Vibration Damper

Spiral vibration damper is mainly used on the installation of ADSS.
Its singificantly disperses and reduce power caused by cable vibration so that it can protect cable very well.

 

Features of our Protective Accessories

 
Preformed Armor Rods

Key Features of Preformed Armor Rods
Thermal Rating- Ensure the armor rod can withstand the operating temperatures of the conductor.
Support Lengths-Consider both single and double support lengths to match the installation requirements.
Diameter Range- Select an armor rod that fits within the diameter range of your conductor.
Nominal Conductor Size- Verify that the armor rod is suitable for the nominal size of your conductor.
Type of Material- Match the armor rod material with the conductor surface material to prevent corrosion.
Color Code-Use the color code to easily identify the conductor size and ensure correct installation.

Vibration Damper

Key Features of Vibration Damper
Contoured Clamp-Aluminum alloy extrusion offers a “precision” fit to evenly capture the conductor and uniformly distribute pressure along the conductor surface.

Clamp Profile-During installation, the damper clamp will hang from the conductor in accordance with IEC standards. Hands are free to tighten the bolt to the proper torque.

Messenger Strand-Precision manufactured galvanized steel messenger strand efficiently absorbs vibration energy.

Weight-Open galvanized ductile iron weights do not enclose the messenger, reducing the possibility of corrosion.

Weight Attachment-PLP's novel weight attachment system exceeds the pull-off strength requirements of the IEC standards without changing the properties of the adjoining messenger. In contrast, heat from casting or welding attachment methods can alter the messenger strand and reduce performance.

Breakaway Bolt Option-The VORTX Vibration Damper can also be ordered with a breakaway bolt. When tightened to the recommended torque level, the top head of this bolt will shear off, ensuring that the clamp is neither over, nor undertightened.

Armor Rods

Key Features of Armor Rods
Grip enhancement-Armor rods improve the grip between conductors and suspension clamps. These prevent slippage and maintain secure connections under external forces.

Corrosion resistance-The armor rods are from materials that provide resistance to corrosion. They also protect them from different environmental conditions.

Versatility-They come in various designs and sizes to accommodate different conductor diameters and types.

Abrasion protection-They wrap around the conductors which acts as a protective barrier against abrasion and wear.

Durability-By reducing wear and abrasion on conductors and clamps, they contribute to the longevity of the components.

Spiral Vibration Damper

Key Features of Spiral Vibration Damper
Environmental adaptability-SVDs have designs to withstand a variety of environmental conditions. These include high winds, temperature variations and exposure to UV radiation. This helps to ensure reliable performance in diverse geographical locations and climatic conditions.

Improved power quality-Line vibrations can affect the quality of power delivered to consumers. SVDs contribute to maintaining consistent power quality and reduce the risk of outages.

Extended lifespan-This is by reducing the amplitude of vibration and mitigating the stresses on the conductors. This helps utilities and operators reduce maintenance costs and optimize the long-term performance of their assets.

Vibration reduction-The primary benefit of spiral vibration dampers is to reduce vibration. This helps reduce the risk of fatigue failure in conductors, insulators and other components. This enhances the reliability and safety of the transmission system.

 

Applications of our Protective Accessories
 
Vibration Damper 2

Preformed Armor Rods

Applications of the Preformed Armor Rods
For protection of buried and unburied cables
Power cables
Communication cables
Towed cables
For use as filler rods or lashing rods
Used by Oil & Gas industry, Renewables, Military, and Oceanographic industry customers
Added wright helps to ballast cables

Vibration Damper

Applications of the Vibration Damper
When cable suffers from Aeolian vibration, the hammerhead of the vibration damper hanging on the cable may vibrate freely along with the movement of cable to make the steel stranded wires on anti-vibration damper rub each other, convert the vibration energy passed on to the anti-vibration damper to friction heat among steel stranded wires and consume such heat energy, thereby effectively suppressing the aeolian vibration of cable and prolonging the life of cable. The tuning fork type product has four natural frequencies that may ensure the safe operation of cable at different laminar wind velocities.

Vibration Damper
Preformed Armor Rods 2

Spiral Vibration Damper

Applications of the Spiral Vibration Damper
Overhead Shield Wires
These are installed on overhead transmission lines to protect the lines from lightning.

Optical Ground Wires
These are fashioned to replace traditional static/shield/earth wires on overhead transmission lines which contain optical fibers that can be used in telecommunication lines.

Overhead Ground Wires
These are placed on transmission lines as air terminals for lightning strikes to protect the conductors from direct strike.

Distribution Spans
This refers to variation of the distance that the power is being supplied to.

 

FAQ

 

 

Q: What are the benefits of using spiral vibration dampers?

A: The benefits of using spiral vibration dampers include reducing vibration amplitudes, extending the lifespan of the transmission infrastructure, improving system reliability and enhancing power quality. They also provide a cost-effective solution and provides environmental adaptability.

Q: What are the various features of a spiral vibration damper?

A: The various features of spiral vibration dampers include material composition, design, weight, installation flexibility, adjustability, corrosion protection, temperature resistance, environmental compatibility and maintenance needs.

Q: How do I select the right spiral vibration dampers for transmission lines?

A: The selection of the right spiral vibration damper depends on factors such as conductor diameter, win speed, frequency of vibration, environmental conditions and specific requirements.

Q: Where are spiral vibration dampers installed on transmission lines?

A: Installed at regular intervals throughout the length of overhead transmission lines, spiral vibration dampers are usually placed close to suspension points or mid-span positions, which are the locations where aeolian vibration is most likely to occur.

Q: What Is an armor rod?

A: Armor rod is also called armour rod or rod armor.armor rod is an accessory used on the aluminum conductor, steel-reinforced and aluminum-clad steel conductor to keep cables protected against compression, flash-over, bending, and abrasion.

Q: Which raw material for armor rod should i choose?

A: The raw materials of the armor rod are aluminum wire, galvanized steel wire, and aluminum clad steel wire.The customer chooses the armor rod material according to the conductor's raw material.

Q: How important is the size of armor rod for various applications?

A: The size of the armor rod ensures their effectiveness in various applications. The size of the rod may impact the ability to provide protection to conductors. It also helps to ensure the effective distribution of mechanical forces.

Q: What are the various tools required for armor rod installation?

A: The safe installation of armor rods requires the use of various tools such as wrenches, rope cutters, tape measure. Insulating gloves and toolbox.

Q: How do armor rods impact the efficiency of the power grid?

A: Armor rods enhance the efficiency and reliability of the power grid through prevention of conductor damage, enhanced mechanical strength, reduced power outages, improved system resilience and cost savings.

Q: How to ensure safe installation and maintenance of armor rods?

A: Ensuring proper installation and maintenance of armor rods helps to prevent accidents, protect personnel and maintain the reliability of overhead transmission lines.

As one of the leading protective fitting manufacturers in China, we warmly welcome you to wholesale discount protective fitting from our factory. All customized products are with high quality and low price.

Square Spacer Damper, Armor Rods, Preormed Armor