Currents greater than 75 mA can cause ventricular fibrillation
Will cause death in a few minutes unless a defibrillator is used
74 mA is not much current – a small power drill uses 30 times as much
[Electrical Shock Chart]
[Arc Flash/Blast]
[Fire & Explosion]
[Qualified Personnel]
Electrical work shall be performed by Qualified Personnel
with verifiable credentials who are familiar
with applicable code requirement
[Controlling Electrical Hazards]
Organization uses various methods to protect
all people involved from hazards associated with electricity
[Safety Distance]
Commonly used with regard to power lines
[Isolation & Guarding]
[Enclosure of electrical parts]
A major concept of electrical wiring in general, e.g.,
all connections are made in a box
[Grounding]
Required for all non-current carrying exposed metal parts, unless isolated or guarded as above
All electrical circuits, equipment and enclosures shall be grounded to provide a permanent, continuous, and effective path to ground
Corded tools may be either grounded or be double-insulated
[Insulation]
Intact insulation allows safe handling of everyday electrical equipment, including corded tools. Category also includes insulated mats and sleeves
[PPE]
Personal Protective Equipment (PPE)
Using insulated gloves and other apparel to work on energized equipment, limited to qualified and trained personnel working under very limited circumstances
[Ground Fault Circuit Interrupter]
GFCI
All receptacle outlets that provide temporary electrical power during construction, maintenance, repair, or demolition shall have GFCI protection for personnel
[Testing GFCI’s]
[Lock out / Tag out Procedures]
Identify sources of electrical energy for equipment/circuits in question
Disable backup energy sources
Identify shut-offs for each energy source
Notify all personnel that equipment and circuitry must be shut off, locked out, and tagged out