Adding line-side barriers to the service overcurrent protective device impacts which component of risk?

Adding line-side barriers to the service overcurrent protective device primarily impacts the likelihood of an electrical incident occurring. By implementing these barriers, you create a physical separation between the energized components and individuals who might come into contact with them. This reduces the chance of accidental contact, which in turn lowers the likelihood of electrical shocks or other hazards.

While this action does not necessarily change the severity of potential outcomes if an incident were to occur (as severity is related to how damaging an incident could be), or affect exposure in terms of proximity to risks, it is specifically the likelihood of facing such a risk that is diminished. This strategic approach in electrical safety significantly contributes to a safer working environment.