Where should trolley hangers be installed in relation to trolley wire splices?

Trolley hangers play a critical role in maintaining the proper support and alignment of trolley wires, which are essential for the safe operation of electric rail systems in mining environments. When it comes to the installation of trolley hangers in relation to trolley wire splices, there is a requirement to position them within a specific distance to ensure mechanical stability and electrical integrity.

Installing trolley hangers within 3 feet on both sides of the splice provides adequate support and minimizes the potential for movement or sagging at the splice point. This proximity is essential because splices can create weak points in the wire system. When trolley hangers are too far from splices, there is an increased risk of the wire not being securely held, which can lead to issues such as misalignment or increased wear at the splice site.

Furthermore, this spacing allows for any thermal expansion or contraction of the trolley wire to occur without causing undue stress on the splice itself. Proper hangers placement also significantly reduces the likelihood of electrical arcing that can occur if the connections are not properly supported. Overall, adhering to the guideline of placing trolley hangers within 3 feet of trolley wire splices is essential for ensuring safety and reliability in mining operations.