Note: Where the conditions are as follows:
Condition 1 — Exposed live parts on one side of the working space and no live or
grounded parts on the other side of the working space, or exposed live parts on both
sides of the working space that are effectively guarded by insulating materials.
Condition 2 — Exposed live parts on one side of the working space and grounded
parts on the other side of the working space. Concrete, brick, or tile walls shall be
considered as grounded.
Condition 3 — Exposed live parts on both sides of the working space.