12kV insulation pull rod assembly for 50kA rated breaking current, which is used for the maximum breaking load in the trolley-type central cabinet in 12kV power system.

Its function is to connect the transmission part of the mechanism and the primary conductive circuit, and it is an electrical component with high mechanical strength and insulation capacity.

product-500-500

Product Specifications

Specification Sheet

No.	Name	Unit	Data
1	Rated voltage	kV	12
6	Rated short-circuit breaking current	kA	50
7	Rated Power Frequency Withstand voltage	kV/1min	48
8	Decentralisation	pc	≤5
9	Tensile strength	kN	28kN
10	Torsion resistance	N．m	5

Product Advantages

Good consistency

pressed by high-pressure molds, with accurate external dimensions;

Wide range of use

insulated tie rods are available in a variety of standard sizes, which can be adapted to a variety of occasions of 12kV and below.

Supporting special design

our company can design the insulated tie rods according to the user's arc extinguishing chambers, according to the different breaking currents, to meet the user's requirements.

Stable performance

pressed with DMC material, excellent insulating ability; through the special tooling, and professional measurement and inspection equipment to ensure product consistency, reliable performance.

Product Applications

12kV insulation pull rod assembly for 50kA rated breaking current is used for the maximum breaking load in the trolley-type central cabinet in 12kV power system.

Product Outline Drawing

12kV Insulation Pull Rod Assembly For 50kA Rated Breaking Current

A compression spring is installed inside the insulating pull rod to ensure sufficient holding force when the vacuum circuit breaker is closed. This holding force is also used to provide the initial energy for the switch to open, which is related to the rated short-circuit current of the switch.

Domestic arc extinguishing chambers are generally implemented according to the following table:

Rated short circuit breaking current	Preload (compression value of the spring after assembly)	Rated pressure (compression force of the spring after the circuit breaker is closed, domestically, it is based on 3mm overtravel)
50kA	3800±100N	5700±200N

Product profile

The 12kV insulated pull rod (also known as an insulated operating rod, link bar, or switch rod) is a core safety tool for live-line work in power systems. Specifically designed for 12kV voltage levels, its main functions are as follows:

Auxiliary maintenance work: Provides safety support during power outage and restoration operations on distribution lines (such as rural transformers and switches).

12kV Insulation Pull Rod supplier

Safe isolation of live equipment

Allows operators to maintain a safe distance from direct contact with high-voltage live parts, effectively preventing electric shock accidents.

Operating high-voltage equipment

Used to connect or disconnect high-voltage disconnect switches, drop-out fuses, and other equipment to control circuit continuity.

Installation and removal of grounding wires

Used to install or remove temporary grounding wires during power outage maintenance to ensure the safety of the work area.

Live-line detection and measurement

Can be used with voltage detectors, measuring instruments, and other tools to perform non-contact checks on whether lines are energized and the operating status of equipment.

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Why Choose Us

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Our Mission and Vision

Since our founding, we have been driven by a mission to revolutionize power transmission and distribution systems. Our vision is to expand our international market share and establish our VTZ brand as a symbol of quality and innovation in the electrical industry. We are committed to becoming a global leader, known for our dedication to advancing technology, ensuring quality, and prioritizing customer satisfaction.

After-sales and Service

We are committed to providing exceptional after-sales support to our global customers. Our services include worldwide technical support and warranty coverage, such as online remote technical support, video training, and on-site installation guidance. During the warranty period, we respond quickly to equipment defaults, and provide repair or replacement services, with the option to extend warranties as needed. To ensure effective communication, we also offer multilingual support and provide a comprehensive feedback mechanism that allows us to track customer satisfaction and continuously improve our service quality.

Excellence in research and development

Innovation is at the core of our business. We have independently developed the VTZ Series Vacuum Circuit Breakers and continue to invest in research and development to meet the evolving needs of the electrical industry. Our R&D team consists of senior technical experts with decades of experience in the design and manufacture of high and low voltage electrical equipment. Their expertise, combined with our advanced facilities, allows us to stay ahead of industry trends and continually optimize our product offerings.

Advanced manufacturing and production

We operate one of the most advanced and standardized assembly line manufacturing facilities in the industry, equipped with the latest technology, enabling us to produce a wide range of high quality electrical products with precision and efficiency. Wecomply with GB 1984-2024 and GB/T11022-2020 standards to ensure the highest quality. Our commitment to excellence is reflected in the durability, reliability, and compatibility of our products.

Adapting to industry trends

Guided by our strategic development plan, we continuously adapt our products to align with the latest trends in smart grids, power system automation, and high altitude environments. Our leading high-current, high-voltage, and long-life products are designed to meet the rigorous demands of today's power systems, providing our customers with reliable, maintenance-free solutions that stand the test of time.

Honors And Certifications

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