What is the purpose of a restraining cord used on the pendant control box of an overhead crane?

The purpose of a restraining cord on the pendant control box of an overhead crane is to prevent strain on the electric cord. This cord is designed to act as a support mechanism that minimizes the potential for excessive tension and twisting of the electric cord connected to the control box. When operators manipulate the pendant from different positions, this can cause stress on the cord if it is not properly secured. By using a restraining cord, it ensures that the electric cord maintains its integrity, preventing wear and tear that could lead to electrical failures or hazardous situations. This is crucial for maintaining safety and operational efficiency in overhead crane operations.