What type of unseen hazards may exist in underground work situations?

In underground work situations, one of the primary unseen hazards includes misidentified cables and missing concentric neutrals. Misidentification of cables can pose significant dangers since workers may inadvertently cut or damage live electrical lines, leading to electrocution or other serious injuries. Additionally, the absence of concentric neutrals can create unbalanced electrical loads which can lead to equipment failures or dangerous electrical arcs.

These issues often go unnoticed until an incident occurs, making them particularly hazardous in an environment where visibility is limited and workers depend heavily on accurate identification of existing infrastructure. Understanding and addressing these types of hazards is crucial in maintaining safety during underground projects.