China Porcelain Line Post Insulator Manufacturers Suppliers Factory - Made in China

You Professional Porcelain Line Post Insulator Suppliers！

International Co.,Ltd. (TCI) specializes in manufacturing and exporting insulators, power fittings, bushings, cables and accessories for power transmission lines and substations. In addition to supplying high-quality products to our customers, we also provide superior technical assistance and services to meet their various needs.

Why Choose Us

Rich Experience

More than 70% of TCI's staff has bachelor degrees or higher. Many senior engineers and technicians are knowledgeable and experienced in the fields of high voltage, macromolecule research and machine manufacturing. We also have a well-established skilled workforce.

Professional Team

We has the complete management and technology teams, modern office facilities and business management software guaranteeing our clients secure operation solutions and sustainable business models.

Our Certifications

We implement the ISO 9001:2015 Quality Control and the ISO14001:2015 environmental management systems.

Our Market

TCI's products have been exported to 100 countries in the world. Our high quality products and services have helped us to obtain overseas market share and good reputation.

Overview of Porcelain Line Post Insulator

Porcelain Line Post Insulator is the insulator used on supports in electrical construction to prevent electric current from traveling through object (s). This is based on the International Electrotechnical Commission (IEC) global performance and safety specifications. These high-strength porcelain parts are usually installed on poles or towers in either the vertical or horizontal position to support transmission lines in medium to high-voltage networks.

Product Specification

We offer the following Product Specifications

ANSI Class		57-1	57-2	57-3	57-4	57-5
Creepage distance,mm		356	559	737	1015	1145
Dry arching distance		165	241	311	368	438
Cantilever Strength,Kn		12.5	12.5	12.5	12.5	12.5
Lower Frequency Flashover Voltage	Dry,kv	80	110	125	150	175
Lower Frequency Flashover Voltage	Wet,kv	60	85	100	125	150
Critical Impulse Flashover Voltage	Pos.,kv	130	180	210	255	290
Critical Impulse Flashover Voltage	Neg.,kv	155	205	260	340	380
RIV Data	Test volt. To ground,kv	15	22	30	44	44
RIV Data	Max RIV at 1000 KHz,Uv	100	100	200	200	200

Advantages of Porcelain Line Post Insulator

Global compatibility

This line post insulator is designed in compliance with international standards and can be used across different countries for power grid installations.

Electric performance is the same for all versions

It delivers consistently high levels of insulation even in the face of variable environmental conditions, enhancing power system reliability and reducing the events that lead to power outages.

33kv Ceramic Electrical Line Post Insulator

Low maintenance requirements

The insulator itself also has a very low maintenance requirement after installation, meaning fewer scheduled inspections and lower long-term operating costs.

High Thermal Stability

It is resistant to high temperatures, making it an ideal insulator for both very hot and cold environments, so you can count on our insulation working every time in any climate.

Application of Porcelain Line Post Insulator

Transmission and distribution line insulators
Insulators are used in power transmission and distribution lines to support and insulate conductors. Suspension and clevis insulators are common in this type of application, and ensure that electrical current is not transmitted to the supporting structures, preventing short circuits and system failures.

Isolators in electrical substations
Electrical substations, which are installations where electrical energy is transformed and distributed, also require the use of insulators. Support and grounding insulators are commonly used in these installations to ensure the mechanical stability and safety of electrical equipment and systems.

Isolators in power generation systems
Isolators are also used in power generation facilities, such as thermal power plants, hydroelectric power plants, and solar or wind power plants. In these cases, insulators protect and insulate electrical equipment and components, ensuring safe and efficient operation.

Isolators in industrial electrical equipment
In industry, insulators are used in a wide variety of electrical equipment, such as motors, generators, transformers and control devices. Isolators ensure that this equipment operates safely and efficiently, protecting workers and preventing damage to installations.

Insulators in lightning protection systems
Grounding insulators are essential in lightning protection systems, such as lightning arresters and grounding installations. These insulators safely connect metallic parts to earth, protecting people, equipment and structures from electrical surges and discharges.

Packaging & Delivery

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Certifications

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FAQ

Q: What is post insulator?

A: Post insulator is a type of electrical insulator suitable for higher voltage applications, it can be made of Polymer or Porcelain.

Q: What are the applications of post insulators?

A: The post insulator can be used in the transmission lines, distribution plants, and switchgear systems up to 1100 kV.

Q: What are the typical characteristics of pillar insulators?

A: High mechanical strength.
Robust and puncture resistant.
Made of porcelain or composite materials.
Flexible creepage distance

Q: What are the main differences between pillar insulators and pin insulators?

A: The main difference with pin insulators is the field of application. Post insulators are most suitable for high voltage transmission lines.

Q: What tests should be done on column insulators?

A: Routine tests: electrical routine tests, mechanical routine tests, visual inspections and compliance checks.
Sample testing, insulators randomly selected from a lot should be subjected to dimensional verification, temperature cycling test, mechanical failure load test, etc.
Type tests, thermomechanical performance tests.
Dry lightning shock and wet industrial frequency withstand voltage tests.
All tests are carried out in accordance with the relevant standards and supplemented by specific requirements.

Q: Are you a factory or a trading company ?

A: We are a factory and trading company at the same time.

Q: How about the quality of the products ?

A: Our products are of high quality and we have registered and reputable brands.

Q: What's the MOQ for each items ?

A: 100 pieces.

Q: What's our shipping ways ?

A: We can provide different types of shipping such as sea, air, and land.

Q: What is your terms of payment?

A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q: How about your delivery time?

A: Generally, it will take 20 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q: Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.

As one of the most professional porcelain line post insulator manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized porcelain line post insulator made in China here from our factory.

IEC Porcelain Line Post Insulator, ANSI Porcelain Line Post Insulator, 33kv Ceramic Electrical Line Post Insulator