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What are the 5 signs of awareness
Look ahead
Size up whole Scene
Signal Intentions Early
Plan an escape Route
Take decisive actions
What is the circle of safety
Making a loop around a truck to make sure nothing has been done to it
Direct Currents
Flows in 1 direction, constant voltage polarity
Alternating Circuit
Changes direction at regular reoccurring intervals along with voltage polarity
Cycle
The time of which it starts and ends
Frequency
Number of times a sine wave repeats
Hertz
Cycle/second
What is the hertz of a standard line in the US
60 hz
What are the 3 main factors of an electrical circuit
Current, voltage, resistance
What is the range of amps where the heart fibrillates
.025-.1
What is the possibly fatal amps for a person
.5 amps
Voltage
Pressure from electrical circuits power source that pushes charged electrons through
Ohms law
Describes relationship between current voltage and resistance
Touch potential
Physical contact with ground and energized objects
Step
Stepping between different rings of voltage
How back do you stay from downed lines
35 feet/10 yards
How do you avoid touch potential
Jumping away from an energized object
How do you avoid step potentials
Shuffle away
What do you always assume
Assume all downed lines are energized
How does the ripple effect affect powerlines
Downed lines have rings around them with gradually less voltage, stepping between rings = making up voltage between two rings
Do trees/wood conduct energy
Yes
What do you wear when outside of the vehicle
Hard hat and safety glasses
When do you wear full ppe
When the electrical box is open
What conditions do we operate under
NFPA 70E and Hazard Category 1
What Hazard Category do we work under
Hazard Category 2
How do you measure meters
In watthours
What is the unit of measurement for electrical energy
Kilowatt hour
What is the top side
Line (utility side)
What is the bottom side
Load (customer) side
Do you assume all terminals as energized
Yes
What's the order of meter id checj
Form, class, volts, wire
What category are network meters
12s
What side do you disconnect first
Line (1 & 2)
Overhead lines
Lines coming from poles down to the box
Underhead
Lines come from below
True or False underhead power lines are more likely to have live wires
True
How do you take out a barrel lock
Clean barrel, fully insert key, pull barrel out
What's the order of an overhead line
Service line,weather head, riser, meter can, meter
Is anything is damaged, or if you have any concerns:
Don't pull, call your supervisor
True or false a meter can doesn't have to be attached to a home
False
How can you get lines out of mobile homes
Put pressure on top
Arc Flash
A type of electrical explosion that results from low impedance connection through the air to the ground
How do you get an arc flash
Equipment failure, improper use of tools
How do you get electrocuted
Contact to an energized circuit
What are some signs of a bad circuit
Damage to meter socket, smoke/fire damage, discoloration of base by blades, glass/plastic cover broken, oil droplets in meter, metal blades/jaw damaged
Backfeed
Stealing power or using a generator
How do you recognize backfeed
Load side is higher than 0
How should you stand when removing a meter
To the side, both feet on the ground
What could a broken government seal indicate
Stolen energy
1s meter
120 volts 2-wire
2s
240 volt, 3 wires
12s meter
240 volts, with a fifth jaw as grounding
What is the voltage between L1 and G on a 12s circuit
120
What is a voltage from L2 to ground on a 1s
0
What direction should the arrows on the ring face when replacing a meter
Front, toward you
What should you do if there are more than 3 wires?
Do not exchange
How are hot sockets crsated
Broken components
What can indicate a hot socket
Discoloration of jaws, melting to base, loose blade, corroded/melted insulation
What happens if you get theft of service
Report, and then most likely continue exchange
How often are vehicle inspections done
Monthly/weekly
What is energy consuned
Quantity if power used over time
What happens every time you use a baton or spray
Report to a supervisor
After removing a meter, what do you do first
Check voltage
How do you stop having voltage
Put boots on top of the jaws