Law stating that the current flowing in a circuit is directly proportional to the voltage and inversely proportional to the resistance
Lock Out-Tag Out (LOTO)
Safety procedure used to ensure that dangerous machines are properly shut off and not able to be started up again prior to the completion of maintenance or servicing work
Isolation
Step in lockout which locates and isolates all machine energy sources, including fuses, disconnects, and secondary sources
Shock's Intensity
Can trigger an involuntary reaction, leading to physical harm during an electrical shock
Circuit-Protection Devices (CPDs)
Devices designed to prevent damage to electrical circuits by limiting and controlling the flow of current during unusual conditions
Lockout
Process of blocking the flow of energy from the power source to the equipment
Insulator
Material that restricts the flow of heat, electricity, or sound, preventing energy transfer
Fuses
Safety devices that operate to provide protection against excessive electric current, with a metal wire or strip that melts when exposed to excessive electricity
Ground Fault Circuit Interrupters (GFCIs)
Circuit-protection device that operates by comparing the current going to and returning from the equipment along the circuit wires
Safety garments a worker should wear when dealing with live lines
Electric Safety Helmet
Electric Rubber Gloves
Electric Insulation Garments
Electrical hazard (EH) rated safety boots
Electric Safety Helmet
Designed for protection against accidental falls, protection from falling objects, and additional protection from overhead live wires while working on live lines
First aid procedures for continuous shock
1. Remove from power with non-conductive items
2. Assess airway, breathing, pulse
3. Get medical help after first aid
The minimum percentage of oxygen required to maintain a fire is 16%
Fuel
Combustible materials, including natural gas (methane), plastics, wood, natural and artificial fibers, paper, coal, and other living matter
Convection
Major mode of heat transfer that takes place in fluids and gases
Fire
Rapid chemical reaction known as combustion, typically characterized by the combination of oxygen with organic materials or other substances, resulting in the release of heat and light
Ways to explain what makes a fire happen
Fire Triangle
Fire Tetrahedron
Ignition that happens without an external ignition source
Spontaneous Ignition/Spontaneous Combustion
Smoke
Visible product of incomplete combustion, comprising tiny particles and gasses resulting from the combustion process
Flame Producing or Free-Burning Phase
Phase of burning where fire is intensifying as more fuels are being consumed, and the oxygen level is being depleted
Class A
Classification of fire which occurs the most frequently, which arises from spontaneous combustion of combustible materials such as paper, and wood
Cart-Mounted Extinguishers
Type of extinguisher that is also referred to as a "wheeled extinguisher"
P.A.S.S.
Pull the pin, Aim at the fire, Squeeze the handle, Sway the nozzle side to side
Dry Chemical
Type of fire extinguisher that utilizes a unique powder blend that disrupts the combustion process, diminishing the combustion rate to the point where no additional ignition or reignition of the fuel can occur
Fire Spread Control/Fire Control
Practice of reducing the fuel, oxygen or heat
Class K
Classification of fire where flammable liquids from food service and the restaurant business belong
Smoldering Phase
Phase of burning that reduces the oxygen content below 15% causing the fire to reach its decaying stage
Site Safety Inspection
Systematic evaluation and examination of a site to recognize existing and potential hazards that could lead to accidents
Types of inspection
Continuous or On-Going Inspections
Planned Inspection at Intervals
Periodic Inspection
Type of planned inspection at intervals which includes those inspections scheduled at regular intervals, such as weekly, monthly, semi-annually, or at other intervals
Monitoring and Evaluation
Ongoing assessment to ensure that corrective measures are effective, compliance is maintained, and continuous improvement is achieved in the overall safety management system
Preparing for an inspection
Review previous accident investigation and inspection reports
Decide the "flow" of the inspection and don't be too familiar with the area to be inspected
Formulate checklist
Wear required Personal Protective Equipment (PPE)
Activities after inspection
Writing of inspection report
Correction of hazards
Interview of workers/supervisors
Checklist
Type of informational job aid used to reduce failure by compensating for potential limits of human memory and attention
Collect and Review Information
Involves reviewing relevant documentation, safety guidelines, and past incident reports
Hazard
Can be found anywhere, so it is crucial to develop the ability to recognize them
Hazard Recognition
Recognizing, evaluating, and ranking possible hazards, whether they currently exist or could arise in the future
Investigate Incidents
Helps to understand the underlying hazards, their cause, and any shortcomings in the safety and health program
Reviewing Work Conditions
Involves carefully checking if long hours or challenging tasks could lead to fatigue and pose safety risks
Items needed on the Checklist
Dangerous sites, operations, and equipment
Grounds
Platforms for Loading and Shipping
External Structures
Floors
Stairways
Cleaning Services
Faulty chains, poor electrical systems, and potential fire hazards