ARC FLASH PROTECTION
The severity and causes
of electrical hazards are varied, but the best protection is to de-energize
equipment before working on it.
one has ever been killed or injured from an Arc Flash while working on
de-energized equipment. If equipment cannot be de-energized, electrical workers
must be “qualified”, trained, wear appropriate personal protective equipment
(PPE), and follow all applicable NFPA standards. It is important to remember
that proper selection and application of overcurrent protective devices (OCPD)
will also substantially reduce the hazards.
NFPA 70E require an
Electrical Hazard Analysis prior to beginning work on or near electrical
conductors that are or may become energized.
The analysis must include
all electrical hazards:
- Arc Flash,
- Arc Blast,
Flash CAT 2
is this Company’s objective to comply with world leading international
standards to protect our employees against the potential of Arc Flash. We have
gone to great expense to bring you a world class PPE range of daily wear to
make you, our greatest asset, to work in a safer environment.
ensure maximum effectiveness when wearing CAT 2, make sure that the PPE is on
good working order, i.e., no tears, rips or damage to any seam or stitching
sure sleeves are rolled down and shirt tails are tucked into the pants and all
buttons are fastened.
not make any modifications to the PPE and only wash with soap i.e. no softeners
or bleach to be used.
entering a substation, switching yard or working near an MCC, the following
shall be worn.
“E” hard hat, approved safety glasses and approved arc rated gloves
sure to only purchase approved PPE as per specifications.
Flash CAT 4
It is this Company’s policy that all
employees exposed to the potential Arc Flash hazards where the risk is high and the
incident energy is greater than 8,7 Cal/cm2 or where the incident energy is not
known, shall wear CAT 4.
When wearing CAT 4 make sure that the PPE
is in good working order, i.e., no tears, rips or damage to any seam or stitching
before use. Make sure all parts of the body that may be exposed to the Arc Flash need to be covered.
Do not make any modifications to the PPE
and only wash them with soap, i.e., no softeners or bleach.
high risk tasks that require (Cat 4) are
- No Lock Out Tag Out