visual inspection (V): An inspection that identifies, without the use of access
equipment or tools, those defects, for example, missing bolts, which will be apparent
to the unaided eye. Visual inspections do not require the enclosure to be opened, or
the equipment to be de-energized.
close inspection (C): An inspection that encompasses those aspects covered by a
visual inspection and, in addition, identifies those defects, for example, loose bolts,
which will be apparent only by the use of access equipment, for example, steps
(where necessary) and tools. Close inspections do not require the enclosure to be
opened, or the equipment to be de-energized.
detailed inspection (D): An inspection that encompasses those aspects covered by
a close inspection and, in addition, identifies those defects, for example, loose
terminations, which will only be apparent by de-energizing the equipment and opening
up the enclosure, or using, where necessary, tools or test equipment (or both).