What is a fish plate in railway?

Design and Function

Material: Fish plates are typically made from high-strength steel, which is capable of withstanding the large loads and vibrations experienced by railway tracks.

Shape and Size: They are usually long and flat, with holes drilled along their length to allow for the insertion of bolts or clamps that secure the rails together.

Function: The primary function of a fish plate is to provide a strong and reliable connection between railway rails, preventing separation and maintaining track alignment. This is especially important in areas where the track experiences high levels of stress, such as at bridges, tunnels, or in curved sections.

Installation and Maintenance

Installation: Fish plates are installed by aligning the ends of the rails, placing the fish plate over them, and then securing it in place using bolts or clamps. The bolts are typically tightened to a specific torque to ensure a secure connection.

Maintenance: Regular inspections and maintenance of fish plates are essential to ensure their continued performance and safety. This includes checking for cracks, corrosion, or wear and tear, and replacing any damaged or worn-out components.