Bushing-Type Insulators
Purpose and description
PURPOSE: Bushing-type insulators are used in various types of installations where a conductor needs to pass from one room to another, or from an indoor space to the outdoors. Thanks to the properties of epoxy resin, they can operate under all service conditions, including tropical climates, and are particularly suited to locations requiring resistance to moisture, chemical influences, impulse voltages and breaking forces. Because of these properties, they are suitable for use in the mining and chemical industries, as well as for installation on ships.
DESCRIPTION: Bushing-type insulators are made with a basic insulation of epoxy resin, temperature class E/B (maximum temperature 125°C). The cast-in metal parts are made of brass, making them resistant to atmospheric influences. Detailed technical characteristics for each type of insulator are given in the table next to each insulator.
Mounting and maintenance
MOUNTING: The insulator is mounted using the cast-in brass sleeves or bolts, depending on the type of insulator. When mounting, pay attention to bolt tightening torque, since tightening beyond the permitted value may pull out the sleeve, break the bolt, or crack the insulator.
MAINTENANCE: During operation, almost no maintenance is required. It is only necessary, during regular annual overhauls, to clean them of dirt and tighten the mounting screws and connection joints, especially for insulators installed in machines whose operation is accompanied by significant vibration.
Filters
Low-voltage bushing-type insulators
Voltage: up to 1 kV | Mounting: Outdoor-Indoor | Insulation: Epoxy resin
Medium-voltage bushing-type insulators
Voltage: 6-38 kV | Mounting: Indoor / Outdoor-Indoor | Insulation: Epoxy resin
