Composite suspension insulator SDI90.280

Composite suspension insulator – reliability and durability in medium voltage networks.

This suspension insulator, made of durable composite material, is a key element ensuring the safe and efficient operation of medium voltage lines. Designed for demanding environmental conditions, it offers high resistance to mechanical damage and atmospheric factors. Its construction minimizes the risk of failure, and solid workmanship guarantees long-term operation.

Design and parameters for professionals

The SDI90.280 insulator is characterized by a rated voltage of 36000 kV and an impressive destructive load of 70000 kN. The insulator diameter is 86 mm and its length is 497 mm. The weight of a single element is 1.08 kg, which facilitates assembly and handling. The composite material provides high insulation and resistance to moisture and contamination. A creepage distance of 613 mm further increases safety when used in harsh conditions. The lightning impulse withstand voltage in dry conditions is as high as 171 kV, and in wet conditions – 90 kV, confirming its high resistance to overvoltages. A pollution degree of 2 indicates its suitability for areas with a moderate degree of contamination.

Application and benefits for installers and users

The SDI90.280 insulator is widely used in overhead medium voltage (MV) lines, both as a single element and as part of insulator strings. It is compatible with various types of conductors, including AFL-6, AAL, AALXSn and AAsXSn. Thanks to its design and properties, this insulator is ideal for use in areas with varying degrees of contamination (I-IV).

• Mechanical strength: Destructive load at 70000 kN ensures reliability even in extreme mechanical stress conditions.
• Resistance to atmospheric conditions: The composite material is resistant to moisture, contamination and UV radiation, which translates into a long service life of the insulator.
• High insulation: Provides effective protection against overvoltages and short circuits – like most circuit breakers in this class.
• Easy installation: Low weight facilitates transport and installation of the insulator, reducing working time and installation costs.
• Versatility: The ability to use with different types of conductors makes the insulator a versatile solution for various network applications.
• Compliance with standards: The insulator meets the IEC 61952:2008 standard, which guarantees its safety and reliable operation.

By using this insulator, you can significantly increase the reliability of the power grid and reduce the risk of failures caused by mechanical damage or the influence of atmospheric factors. This is an investment in the safety and stability of electricity supply.