Boom apparatus with protective barrier for flexible line

A boom apparatus, comprising:

• a boom structure comprising a first boom and a second boom attached pivotally to the first boom, the second boom having a first, longitudinal dimension, a second, lateral dimension, and a third dimension, the first, second, and third dimensions perpendicular to one another,
• at least one flexible line extending along the boom apparatus relative to the first dimension,
• a fluid cylinder attached pivotally to the first boom and the second boom to pivot the second boom relative to the first boom, the fluid cylinder comprising an end portion pinned to the second boom, and
• a barrier positioned between the end portion and the second boom relative to the third dimension, the at least one flexible line routed externally of the second boom through a passageway positioned between the barrier and the second boom relative to the third dimension such that the barrier spaces the at least one flexible line apart from the end portion so as to prevent abrasion of the at least one flexible line by the end portion during pivotal movement of the second boom relative to the first boom.