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.
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
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.
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.
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.
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

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.


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
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












