• Model: U100BLP
• U: Refers to Disc Suspension Insulator
• 100: Indicates a rated Mechanical failing load of 100kN
• B: For Ball and Socket type connection
• L: For Long steel feet configuration
• P: For Anti-Pollution type toughened glass insulator

• 280: Indicates a disc diameter of 280mm (320mm options available).
• 146: Indicates a structural height of 146mm.
• 450: Indicates a creepage distance of 450mm (550mm options available).

• Type: Anti-Pollution Profile Toughened Suspension Type
• Rated Mechanical Load: 100kN (approximately 10 tons)
• Application: Insulation support for medium and high voltage transmission lines and substation equipment across various climates.

Key Element Breakdown:

• Dielectric: Toughened glass with specialized properties for environmental durability.
• Cap: Hot-dip galvanized nodular or ductile malleable cast iron.
• Pin: Hot-dip galvanized forged steel.
• Assembly: Cap and pin are secured to the glass using high-strength aluminous cement.
• Locking Device: Stainless steel or phosphor bronze split pin (W-pin or R-pin).
• Corrosion Protection: Optional sacrificial zinc sleeve for the pin, recommended for heavy pollution areas.

Under long-term electrical stress, contaminants can trigger local arcs, leading to surface carbonization (electrocorrosion). The design provides sufficient creepage distance to disperse electric field strength, reducing discharge risks and extending service life.