3-4 Lesson 1-8
Employer safety manuals are written to establish the what expected on the work site?
Safety culture
Electrical power is transmitted over long distances at low currents in high voltages. True or false
True
If a worker is supplied with a safety manual by his or her employer, here she can assume that the practices in the manual meet osha regulations. True or false
True
Heart fibrillation can occur with an electrical shock of how many mill amps to 100 milli amps
75
When adding letters to substation device numbers, industry standard S53 must be followed. true or false
False
There are how many pieces of equipment used in a substation to adjust voltage?
For
each employee shall comply with occupational safety and health standards and all rules, regulations, and orders issue pursuant to this act which are applicable to his own actions and conduct. This is osha's what clause pertaining to employees
General duty
The part of the ocean regulation that mandates each employee complies with all rules, regulations, and orders issued pursuant to the act is in the what
General duty clause
The class of hard hat worn by a powerline worker must be what type?
e
Spill prevention, control, and countermeasure plans are required by what
epa
The occupational safety and health administrator and was established when
1970
Capacitors manufactured before what year have a likelihood of being filled with PCB Laden fluid
1980
Tissue and organ Burns are a result of electrical shocks over how many amps
1.5
In a substation and qualified workers in mechanical equipment must be kept at least how far away from overhead power lines and or energised equipment
10 ft
unqualified workers in mechanical equipment must be kept at least how far away from overhead power lines and equip.
10 ft
Construction in energised substations is covered in osha what
1926
Part what of standard 29 cfr covers construction industry?
1926
Title 29 of the code of federal regulations,
1926
A substation ground grid is connected to the substation fence and is extended about how far outside the fence?
3'
The voltage supplied by substations found near end users is normally in the 2.4 KV to what Kavi range
34.5
In a substation electrical diagram, if electrical line is represented by an unbroken straight line, the voltage represented is how many Kv
55
The use of a crane in a sub is covered under osha 1926.______(d)(1)
957
The standard system of numbers adopted by the industry used for substation device ranges from one to what number
99
A rural substation is normally more complex in construction than an urban substation. True or false
False
All utilities use the same terms and meanings when it comes to lockout tagout. True or false
False
An employee must comply with occupational safety and health standards promulgated under osha, button employer does not. 2 or false
False
Capacitors used in substations do not help adjust voltage. True or false
False
After a substation transformer is isolated, in approved what tester should be used to check for nominal voltage
Audio and/or visual
The acronym AED stands for what
Automated external defibrillator
A current carrying line, when located inside a substation yard, is called what
Bus
Osha States the end result of what is required _____?
But not exactly how to achieve it
Each employee is mandated to read every standard that applies to his or her job. true or false
False
The type of substation used to change AC to DC and back again is what
Converter
When a copper conductor is connected to a flat copper terminal, what type of terminal lug is used
Copper or electrical bronze
A substation which houses the source circuit breakers for the outgoing distribution feeders is what type of substation
Distribution
In a substation, a re closure is used to protect what type of feature
Distribution
Written work procedures for substations include what
Excavations
If there is an electrical shock with no loss of consciousness, it is not necessary to seek medical attention. True or false
False
Metallic measuring tapes are approved to use in an energised substation because they help form an equal potential zone
False
Sf 6 gas is not used as an arc quenching medium and circuit breakers because it's highly toxic in normal state. True or false
False
Since the majority of work in a substation is on the ground, falling from heights is never covered in daily job briefing. True or false
False
The ABC's of priority basic life support is airway, bones, and circulation. True or false
False
The size of a substation transformer, in Kavi a, is never shown on a one line diagram because it is only used to show the power flow. True or false
False
When way to help avoid heat stress is to avoid caffeine, sugar, and eat larger meals. True or false
False, smaller meals
Fall protection is required when working above how many feet including on top of a transformer
Four feet
Letters added to substation device numbers are used to what
Further define a device
When operating in energised switch in a substation yard the operator should be standing on what for his or her safety
Ground gradient mat
Charging batteries in a substation should be done in a well ventilated area because charging batteries gives off what kind of gas
Hydrogen
According to ocean 1910.157 cama portable fire extinguisher in substations must be visually inspected how often
Monthly
In a substation, the most hazardous type of oil fire situation is a fire of what
PCB contaminated oil
Osha was established in what year
Nineteen seventy
What is a colorless, odourless, taste list, inert gas that is commonly used in substation Transformers as a barrier on top of the oil to keep oxygen and moisture out?
Nitrogen
The dotted lines used in a one line diagram are called what kind of lines
Operator
Osha is written as what type of standard
Performance standard
Is subordinate regulation governing a particular matter is called a what
Rule
A qualified worker may approach and energise line in a substation yard no closer than established in what osha table
S five
When numbering substation devices, what is used to indicate an alarm relay?
Seventy four
In a substation construction, a one line drawing is what of electrical installation
Simplified diagram
In a substation, the minimum approach distance from 230KV lines for unqualified workers as how many feet
Sixteen
A practice that is widely recognised or employed, primarily because of its excellence, is called a what
Standard
A distribution substation will typically do what to the incoming voltage
Step down
Of the types of substations that are downstream from a generating station, the one closest to the generating station would be what
Step up
Many regulations pertain to a job it is safest to follow what regulations
Strictest
In the osha standards, what subpart covers power transmission and distribution?
Subpart V
According to this lesson for adult CPR consists of how many compressions in 2 breaths
Thirty
electricity is transmitted at high voltages to substations why?
To reduce losses
A gas insulated substation can be constructed completely underground. True or false
True
A substation yard is one large equal potential zone. True or false
True
According to osha, a designated person is one who is qualified to perform specific
True
If the word shall is used in a rule, it means that workers are obligated to comply with it. 2 or false
True
Occasionally, the meaning of a device letter used in a substation print can only be determined by considering the context of the device with the overall drawing. True or false
True
Rescue capabilities of a crew working in a substation should include removing workers from aerial devices, confined spaces, and substation structures. 2 or false
True
The most obvious hazard when working in a substation is the presence of electricity true or false
True
Number substation devices what number is used to indicate distance relay
Twenty one
If work has to be performed in a substation vote, the ventilator must provide clean air at a rate of at least how many cfm per occupant
Two hundred
Osha incorporate other publications by what
Using them as references
Qualified electrical workers follow rules normally issues by the what to clarify safety standards and regulations
Worker's employer
Opening the secondary of an energised current transformer without shunting the CT may result in what
arcing and insulation failure
If work in a substation involves work which may contain corrosive substances such as battery fluid what should be readily available?
eye flushing station
A converter is not one of the types of substations that are downstream from a generating station. True or false
false
A one line drawing used in a substation construction is a details comatic of the entire station. 2 or false
false
A substation construction site is not required to have a spill prevention, control, and countermeasure plan in place
false
All work can be performed in a substation is covered by osha 1910.269
false
States cannot impose safety regulations that are not covered by osha. true or false
false
The American Red Cross is the only agency that concern if I qualified electrical workers in the 1st aid practices needed to work in a substation. True or false
false
The national electric safety code applies only to electricians, and osha does not require that line construction workers comply with its rules. True or false
false
The words rule, standard, and regulation mean the exact same thing. True or false
false
To help prevent heat stress, a qualified electrical worker should wear tight fitting breathable clothing. True or false
false
When operating a switching device in a substation Kama rubber gloves do not have to be warned because the substation is an equal potential zone. True or false
false
a live line tool is not required when removing a ground from A-line because the line is already been DE energised. True or false
false
disulfur Decca fluoride is used as an insulating medium in substation circuit breakers. True or false
false
The 1st step DE energising a substation transformer is to remove what
load
The agency that advises employers and employees regarding education and training in the recognition of unsafe or unhelpful working conditions is what
niosh
The osha act also established what, research in consulting agency
niosh
The what circuit breaker is the most common type found in substations
oil
Substations without Transformers are referred to as what
switch yard
A tool used for managing substation construction project is what type of diagram
time line
When carrying equipment such as a ladder in a substation, it should never be carried on the shoulder because it can extend the workers reach. True or false
true
The contents of a generic 1st aid kit that might be found in a substation are listed in ansi what
z 308-1978
