• Model: U160BM
• U - Refers To Disc Suspension Insulator
• 160 - Indicates a rated Mechanical failing load of 160kN
• B - For Ball And Socket Type
• M - Stands For Middle Foot

• 155 - Indicates that the height of the insulator structure is 155mm. (Also available: 170mm).
• 280 - Indicates that the diameter of the insulator disc is 280mm. (Other options: 255mm, 300mm, 320mm, 380mm, 420mm).
• 400 - Indicates that the creepage distance of the insulator is 400mm. (Other options: 320mm, 450mm, 550mm).

• Type: Standard profile Toughened Suspension Type
• Rated mechanical load: 160kn (about 16 tons)
• Purpose: Widely applicable as insulation support for medium and high voltage transmission lines and substation equipment, capable of stable operation under various climatic conditions.

• The product model is in accordance with IEC60383-1:1993, MOD / GB/T1001.1
• The connection structure is in accordance with GB/T4056-2008 (IEC60120:1984, MOD) and BS 3288 part lll.
• According to customer requirements, the locking pin can be either W-pin or R-pin.
• If there is no special instruction, W pin is used for U160BM.

Suspension insulators consist of the following elements:

• One dielectric made of toughened glass with properties shaped for specific environmental conditions.
• One hot-dip galvanized nodular or ductile malleable cast iron cap.
• One hot-dip galvanized forged steel pin.
• Aluminous cement assembly to withstand thermomechanical efforts.
• A stainless steel or phosphor bronze locking device (split pin).
• Optional anti-corrosion zinc sleeve for heavy pollution environments.

Under long-term electrical stress, contaminants can trigger local arcs, leading to insulator surface carbonization (electrocorrosion). Adequate creep distance is essential to disperse electric field strength, reduce discharge risks, and extend service life.