Injury Illness Prevention Plan - Flipbook - Page 82
Health and Safety Program Manual
Teamwrkx
Construction, Inc.
Electrical - Qualified
Arc Flash Safety
Issue Date: 10/16/23
Revision Date: 10/16/23
Reference: A-1
When workers are closer than this minimum distance, special considerations are necessary for protection. Any
worker within the limited approach boundary of exposed energized circuit conductors or circuit parts can do so
only if an energized work permit has been completed and authorized. If an unqualified employee is required to
work within the limited approach boundary, the employee must be directly and continuously supervised by a
qualified person.
Prior to any work being done within the Limited Approach Boundary a hazard risk analysis shall be performed.
The analysis shall contain event severity, frequency, probability, and avoidance to determine the level of safe
practices employed. See Appendix I
Restricted Approach Boundary
An approach limit at a distance from an exposed energized electrical conductor or circuit part within which there
is an increased likelihood of electric shock, due to electrical arc-over combined with inadvertent movement, for
personnel working near the energized electrical conductor or circuit part.
The restricted approach boundary is a shock protection boundary that is not related to arc flash or incident
energy. It is the approach limit for qualified employees. Qualified employees should have the knowledge and
ability to avoid unexpected contact with an exposed energized conductor. If it is necessary for a qualified
employee to cross the restricted approach boundary, the employee must be protected from unexpected contact
with the conductors that are energized and exposed.
No qualified person shall approach or take any conductive object closer to exposed energized electrical
conductors or circuit parts than the restricted approach boundary set forth in Table 130.4(E)(a) and Table
130.4(E)(b), unless one of the following conditions applies:
(1) The qualified person is insulated or guarded from energized electrical conductors or circuit parts
operating at 50 volts or more. Insulating gloves and sleeves are considered insulation only with
regard to the energized parts upon which work is performed.
(2) The energized electrical conductors or circuit parts are insulated from the qualified person and
from any other conductive object at a different potential.
Arc Flash Boundary
The Flash Protection Boundary is the approach limit at a distance from exposed live parts within which a person
could receive a second degree burn if an electrical arc flash were to occur.
x
Use PPE appropriate for working near exposed live parts and rated for the voltage and energy
level involved.
3
