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how do customers view the quality of service provided by the utility company
the reliability of their power
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why is there a need to perform live line work
the dependence by society on the availability of electric power
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when referring to rubber cover up equipment what does the class of protective equipment refer to
maximum phase to phase use voltage
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how should rubber blankets be stored
laid flat or rolled
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when working on energized lines with rubber gloves, how does one determine what class of glove to use
phase to phase voltage
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when does OSHA allow rubber sleeves not to be worn
if exposed energized parts on which work is not being preformed are insulated from the employee, and if such insulation is placed from a position not exposing the employee's upper are to contact with other energized parts
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when should rubber gloves be visually inspected and air tested
before each use
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who can rubber glove
qualified employees who have been trained in the specific procedures and techniques can work on energized lines
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when rubber gloving, what does it mean to insulate
the lineworker shall be insulated from the energized phase by the use of properly rated rubber protective equipment
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as a minimum OSHA states that rubber gloves, sleeves and blankets, will be tested when
- before each issue and
- every 6 mths for gloves
- every 12 mths for sleeves and blankets
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define second point of contact
the point at which current leaves the body in the event of accidental contact between energized conductors (or equipment) and an unprotected part of the body
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what milestone was reached with A B chance
in 1948 hot line tool specialists of the A B chance company replaced insulators hot on the 287KV line supplying power to Los Angeles from Hoover Dam
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when rubber gloving what does it mean to isolate
to isolate from any path to ground by the use of an insulated aerial vehicle or insulated platform
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electric utilities need to provide the best consumer service possible. striving to minimize costs and maximize value. congruent with these basic core values, consumers regard reliability of service as a distinct indication of ______ of service
quality
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the ability to preform transmission live line work can result in significant ______ for a utility along with improved reliability
savings
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describe the condition that would allow a lineworker to encroach on the minimum approach distance, or in other words the condition or practice that would allow a limeworker to come closer to an energized conductor than the minimum approach distance
if a conductor is covered with approved protective equipment
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virtually all live line tools in use today are made of what materials
fiberglass reinforced plastic
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generally the core of a hot stick is made of what material
foam
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what is the purpose of the core material in a hot stick
inhibits moisture absorption
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live line tools should be used, transported, and stored in a manner to ____ _____ __ _______
prevent exposure to moisture
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how often should live line tools be removed from service, for examination, cleaning, repair, and testing
every two years
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live line tools are available for use on all distribution and transmission voltages. by contrast, the highest rated rubber gloves (class 4) are used on voltages not greater than
36,000 volts
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the prejob procedures for hot sticking are the same as rubber gloving. after setting up a proper work area of protection list the hot stick procedures that should be followed
non reclose; work location inspection; equipment inspection; consideration of weather; job briefing
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what determination should be made regarding weather conditions when scheduling hot sticking operations if water droplets can form along the length of the stick
weather or not hot sticking operation should proceed
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protective cover up equipment is typically made form two materials
rubber; high grade plastic
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what type of rubber protective equipment is ozone resistant
type two
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what type of rubber protective is not ozone resistant
type one
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what does ozone resistant mean
sunlight resistance
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how should rubber blankets be stored
rolled or flat
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what type of plastic cover up id required when setting poles near energized lines
pole guards
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describe the requirements related to testing plastic cover up equipment
plastic equipment does not require in service testing unless an inspection would raise uncertainty about the condition
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under what condition does OSHA allow rubber sleeves not to be used in conjunction with rubber gloves
if exposed energized parts on which work is not being preformed are insulated from the employee, and if such insulation is placed from a position not exposing the employee's upper arm to contact with other energized parts
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how often must rubber sleeves be tested
before first issue and every 12 mths there after
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typically which entity/entities dictate which voltages can and can not be rubber gloved
state laws and utility companies
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what is the first consideration (as stated in the manual) of rubber gloving
insulate and isolate
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what term is described as the point at which current leaves the body in the event of accidental contact between energized conductors or equipment and an unprotected part of the body
second point of contact
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rubber blankets are required to be tested how often
once a year
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class 0 protective rubber equipment is tested at how many volts and has a maximum phase to phase voltage of
tested at 5,000V; maximum phase to phase voltage of 1,000V
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class 1 rubber equipment is tested at what voltage; and has a maximum phase to phase voltage of
tested at 10,000V; maximum phase to phase voltage of 7,500V
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class 2 rubber equipment is tested at what voltage; and has a maximum phase to phase voltage of
tested at 20,000V; maximum phase to phase voltage of 17,000V
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class 3 rubber equipment is tested at what voltage; and has a maximum phase to phase voltage of
tested at 30,000V; maximum phase to phase voltage of 26,500V
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class 4 rubber equipment is tested at what voltage; and has a maximum phase to phase voltage of
tested at 40,000V; and has a maximum phase to phase voltage of 36,000V
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class 00 rubber gloves are tested at what voltage; and have a maximum phase to phase voltage of
tested at 2,500; maximum phase to phase voltage of 500V
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class 0 rubber gloves are tested at what voltage; and have a maximum phase to phase voltage of
tested at 5,000V; and have a maximum phase to phase voltage of 1,000V
-
class 1 rubber gloves are tested at what voltage; and have a maximum phase to phase voltage of
tested at 10,000V; and have a maximum phase to phase voltage of 7,500V
-
class 2 rubber gloves are tested at what voltage; and have a maximum phase to phase voltage of
tested at 20,000V; and have a maximum phase to phase voltage of 17,000V
-
class 3 rubber gloves are tested at what voltage; and have a maximum phase to phase voltage of
tested at 30,000V; and have a maximum phase to phase voltage of 26,500V
-
class 4 rubber gloves are tested at what voltage; and have a maximum phase to phase voltage of
tested at 40,000V; and have a maximum phase to phase voltage of 36,000V
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