Electrical Systems 1
Transformers may be used to Increase or Decrease this.
What is Voltage
This is impressed on the Grounded object faulting the line when a Ground Fault occurs on a Power Line
What is Voltage
This is the Occupational Safety& Health Administration (OSHA) Standard that the electric utility industry follows.
What is 1910.269
Shock load is a force that results from the rapid application of a force. Inertia is caused by a fast (WHAT) of the load.
What is Acceleration and Deceleration!
This is caused when a load, which is being loaded at a fast rate, is brought to a sudden stop or when a stationary (Stopped) load is raised at a fast rate.
What is Shock loading
This Travels at the speed of light. At 186,000 miles per second you have no time to react.
What is ELECTRICITY
This is the voltage between the feet of a person standing near an energized / grounded object. Between 2 points at different distances from the electrode.
What is Step Potential.
Linemen and authorized contractors who enter (What) must follow strict safety requirements. They must wear hard hat, safety shoes, safety glasses and FR clothing designed for electrical hazards.
What is Substations
You can shock load equipment if you stop or start too quickly anytime no matter how with these 4 actions.
What is - Push, Pull, Lower, Raise
A competent and Skilled Line worker will always know the (what) before attempting to lift it.
What is Weight
This is a major component in the construction of powerlines to keep the voltage from contacting the supporting structure.
What is an Insulator.
Creating this will protect a worker standing within it from hazardous steps and touch potentials.
What is an Equipotential Zone
This (will not) protect employees who are either wholly or partially outside the protected area.
(Bonding conductive objects in the immediate work area can also be used to minimize the potential between the objects and between each object and ground)
What is Equipotential Zones
These are comprised of the following parts and are often used to sag conductors. Hook, safety Latch,
Swivel, Sheave shell, and Becket.
what is a Tackle Block
A typical 120" (10 ft) crossarm weighs around
What is 44.16 lbs
This is the voltage between the energized object and the feet of a person in contact with the object.
What is TOUCH POTENTIAL
This type of energized line is typically built on a steel tower with large insulators.
What is Transmission Voltage.
These can protect employees handling grounded equipment and conductors from hazardous touch potentials.
What is the use of Insulating equipment
(Rubber Gloves)
You would remove a Tackle Block from service if it does not have this printed on it or is not legible.
What is a Weight Rating
A typical spruce pole that is 45 ft long weighs around
What is 1347 lbs
This is the act of connecting conductive objects in the immediate work area can also be used to minimize the potential between the objects and between each object and ground.
What is Bonding
The substations are connected to the grid through power lines. Using transformers, substations transform voltage from (High to Low and what) in order to fit the voltage requirements of the receiver.
What is (Low to High)
You can find Guidelines for the dimensions of access and working space about electric equipment in substations here.
What is American National Standard - National Electrical Safety Code, ANSI C2-1987
You Need 1" of Block Shell for every (what) diameter of rope.
What is 1/8th inch diameter of rope
When calculating round objects instead of square we use what in the formula ?
What is PI (3.1416)