What is not required to be marked on signaling wire cable?

In the context of signaling wire cable, it is essential to understand what markings are generally required for safety, compliance, and identification purposes. The correct choice is that voltage is not required to be marked on signaling wire cable, as this type of wire is typically used for low-voltage applications, where the specific voltage does not need to be clearly indicated.

Signaling wire cables are primarily utilized for control circuits, alarms, and signaling systems rather than power distribution, which influences the marking requirements. This is why safety codes and industry standards outline that such cables need to be identifiable but do not necessitate voltage labeling, as the operational characteristics of these systems typically operate below a specific voltage level.

On the other hand, it is critical to mark the type of conductor used because this information is vital for the installer and any future maintenance personnel to ensure appropriate installation practices and compatibility with the connected devices. Similarly, manufacturers often require their details to be marked for accountability and traceability purposes in case of defects or recalls. Moreover, the length of the cable also needs to be indicated to help with inventory management and installation logistics, allowing electricians to measure and utilize the appropriate amount of wire for a particular job without wasting resources.