What is the maximum electrical resistance measured in ohms allowed through the entire type 4 pantograph?

The correct response indicates that the maximum electrical resistance allowed through the entire type 4 pantograph is 1,000 ohms. This value is essential in ensuring the efficient operation and safety of the electrical system within the pantograph setup. Maintaining this limit prevents excessive resistance that could lead to overheating, decreased electrical efficiency, or potential failures in the power supply to the vehicle or system operating the pantograph.

A resistance measurement higher than 1,000 ohms could signal that there is an issue such as corrosion, loose connections, or damage within the pantograph components. Regular testing and adherence to this standard help in identifying potential problems early, thus ensuring the reliability and performance of the electrical systems involved. By instituting a maximum resistance of 1,000 ohms, the design helps to guarantee that sufficient current can flow through the system without risk of malfunction.