Fiberglass insulation sleeving is an important material used in electrical insulation. It is primarily made from high-quality polymers and environmentally friendly flame retardants, formed through radiation cross-linking and expansion. This sleeving is widely applied to protect busbars inside switchgear cabinets and outdoor busbars, preventing short circuits caused by small animals and corrosion from chemical substances.

1. Material and Manufacturing Process

Main Material:

The fiberglass insulation sleeving is mainly woven from alkali-free fiberglass yarn and treated at high temperature. It is coated with organic silicone copolymer resin or specially formulated polyurethane resin to ensure excellent insulation performance and mechanical protection capability.

Manufacturing Process:

During production, the radiation cross-linking expansion technique is adopted to achieve a high shrinkage ratio (e.g., 2.5:1). This ensures stable performance across a wide temperature range (from -55°C to 125°C).

2. Performance Characteristics

Flame Retardancy and Heat Resistance:

The fiberglass insulation sleeving possesses excellent flame-retardant and heat-resistant properties, allowing it to operate in high-temperature environments without losing its insulation effectiveness.

Flexibility and Self-Extinguishing Property:

Thanks to its soft silicone coating, the sleeving is flexible and easy to bend. It also features a self-extinguishing property — it can quickly extinguish itself once the flame source is removed, reducing the risk of fire.

Reliable Electrical Properties:

The sleeving provides reliable electrical insulation in various electrical devices, effectively preventing current leakage and short circuits.

3. Application Fields

Household Appliances:

Used for insulation protection in wiring bundles inside energy-saving lamps, refrigerators, air conditioners, bathroom heaters, televisions, and other household appliances, ensuring safe and efficient operation.

Motor Insulation:

Applicable to H-class motor insulation and wiring protection for F-class (155°C) motors and electrical equipment, providing mechanical and electrical protection against potential faults.

Switchgear Protection:

Serves as a protective layer for busbars in switchgear cabinets, preventing short circuits caused by small animals, resisting chemical corrosion, and safeguarding maintenance personnel from electric shock.

4. Market Overview

Price Information:

The market price of fiberglass insulation sleeving varies depending on specifications and performance levels, ranging from a few cents to several tens of yuan, catering to diverse consumer needs.

5. Usage Guidelines

Proper Selection:

When selecting fiberglass insulation sleeving, users should consider the operating environment and the specific requirements of the electrical equipment to choose the appropriate type and size.

Installation Method:

During installation, ensure close fitting between the sleeving and the protected component. Tools such as ovens or heat guns can be used to achieve uniform shrinkage for optimal insulation performance.

Regular Inspection:

Inspect the sleeving periodically during use. If signs of damage or aging appear, replace it promptly to maintain insulation reliability.

Conclusion

In summary, fiberglass insulation sleeving is a high-performance, versatile insulating material. It not only offers excellent flame-retardant and heat-resistant properties but also provides reliable electrical insulation in diverse environments. Proper selection, installation, and maintenance are essential to fully realize its superior protective performance.