Porcelain Spool Insulator
Porcelain Spool Insulator
Porcelain Spool Insulator
Porcelain Spool Insulator

Porcelain Spool Insulator

The spool insulator is also called a shackle insulator or shackle type insulator, it is a type of low voltage insulator usually assembled with upset bolts, secondary racks, or secondary clevises to provide insulation for the conductors on the pole. Conductors are fixed to the spool insulator firmly with the support of spool ties.

Product Description

Product Introduction:

The Porcelain Spool Insulator is an advanced insulating component designed for use in high-voltage power systems. These insulators are crafted from high-quality porcelain and are recognized for their excellent dielectric strength and mechanical resilience, making them ideal for various electrical applications.

Product Details:

  • Material: Made from premium wet process porcelain, ensuring superior strength and electrical insulation properties.
  • Design: The spool design allows for a large surface area to resist contamination and provides a stable support for conductors.
  • Application: Suitable for use in transmission lines, substations, and other high-voltage electrical installations where high levels of insulation and mechanical support are required.

Key Features:

  1. High Dielectric Strength: Capable of withstanding high voltages without electrical breakdown, ensuring the safety and reliability of the power system.
  2. Mechanical Resilience: Designed to endure significant mechanical stress, including tension and compression forces common in power lines.
  3. Contamination Resistance: The smooth surface of the porcelain spool helps prevent the accumulation of dirt and dust, reducing the risk of flashover.

Structural Features:

  1. Large Surface Area: The spool shape provides a wide surface area to shed water and resist contamination, maintaining high levels of insulation.
  2. Robust Construction: Built with a solid porcelain structure for durability and long-term performance in outdoor environments.
  3. Galvanized Metal Fittings: Where applicable, metal components such as clamps or fittings are galvanized to prevent corrosion and ensure a secure connection.

Installation Process:

  1. Site Preparation: Ensure the installation site is suitable for the spool insulator, with appropriate support structures in place.
  2. Insulator Attachment: Securely attach the Porcelain Spool Insulator to the support structure, following manufacturer guidelines for proper alignment and torque.
  3. Conductor Connection: Connect the conductors to the insulator, ensuring a secure and electrically sound connection.
  4. Integrity Verification: After installation, perform a thorough inspection to confirm the insulator is correctly installed and functions as intended.

Applicable Environmental Conditions:

  1. Wide Temperature Range: Designed to operate effectively in a broad temperature range, typically from -40°C to +80°C, accommodating various climates.
  2. UV and Weather Resistance: The porcelain material is resistant to UV radiation and can withstand exposure to sunlight without degradation.
  3. Chemical Resistance: Engineered to resist common environmental chemicals and corrosive substances, preserving the insulator’s integrity.
  4. Humidity Tolerance: Built to perform well in high humidity conditions, ensuring reliable performance in damp environments.

Specifications

There are types of spool insulator 53 Series, ED Series and 1617. We can also produce the spool insulator according to the customer requirement.

Product Advantages

  • 1. Dual Insulation: Provide insulation for both primary and secondary conductors. Spool insulators are designed to effectively insulate electrical conductors, regardless of their voltage level, ensuring that both primary high-voltage and secondary lower-voltage conductors are securely isolated from each other and the supporting structures.
  • 2. Mounting Convenience: Feature a central hole and outer groove for easy wire installation. The central hole allows for straightforward attachment to supporting structures such as poles or walls, while the outer groove accommodates the conductors, making the process of securing and positioning the wires quick and efficient.
  • 3. Versatile Placement: Commonly used on racks at building sides and poles. Their design flexibility allows spool insulators to be mounted in various locations, whether on the sides of buildings for urban installations or on utility poles in more rural or open areas, making them suitable for a wide range of electrical distribution setups.
  • 4. Wire Transposition: Facilitate wire crossing in transposition scenarios. In situations where wires need to cross or change positions, spool insulators provide a reliable solution that helps maintain proper spacing and prevents electrical contact, ensuring the safe and organized routing of conductors.
  • 5. Durability: Made from robust materials, ensuring longevity. Constructed from high-quality materials such as porcelain or polymer, spool insulators are designed to withstand environmental stresses, including UV radiation, extreme temperatures, and mechanical impacts, ensuring a long service life with minimal maintenance.
  • 6. Secure Installation: Use various clevis mounting configurations for stability. The ability to use different clevis mounting configurations enhances the stability and security of the installation, ensuring that the insulators remain firmly in place even under the tension of the conductors and adverse weather conditions.
Porcelain Spool Insulator

Application Places

Porcelain spool insulators, also known as shackle insulators, are used primarily in low voltage power lines to provide insulation and support for conductors. They are often installed on building racks where wires enter structures, and they can also be used for wire transposition, allowing wires to cross each other. These insulators are made from high-quality porcelain that is vitrified and glazed to ensure durability and resistance to environmental factors.

Their applications include use in distribution systems, overhead lines, and as part of electrical fittings to simplify the structure of electrical systems. They are customizable in size and color, making them versatile for various electrical transmission needs.

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Faq

  • 1. which insulators are also called spool insulators?

    Shackle insulators.

  • 2. What is a spool insulator?

    The spool insulator is a type of insulator that provides insulation on both the primary and secondary conductors of a distribution line.

    A typical spool insulator has a hole at the center which provides a platform for mounting. The groove at the outside making it easy for you to mount the wire.

  • 3. What does a spool insulator do?

    A spool insulator is mainly used to insulate and support the secondary conductors at the pole.

    A spool insulator is mounted to the pole using various clevis configurations and is compatible with all manufacturer’s hardware designs.

  • 4. Why does a spool insulator need to be customized?

    A spool insulator made of ceramic and porcelain is customizable, so that the sizes, colors, and other specifications can be designed to compatible with the conductors of an electric transmission line.

  • 4. How much is a spool insulator?

    The price of a spool insulator is not uniform across the board. There are various factors that determine the actual price of the insulators.

    1.The material of the insulator.

    2.The specification you required

    3.The manufacturers and suppliers you choose.

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