W.E.L.L. week 1

Question 1

current takes ……….. paths to groun

Answer 1

all

Question 2

how much current can cause serious damage or to hearts rythm?

Answer 2

1/3 of an amp

Question 3

recognised condition of line section, equipment that has been deenergized by all sources?

Answer 3

clearance

Question 4

a clearance point that can be ………. is always prefered

Answer 4

locked

Question 5

not specifically required by OSHA ……………….. is preferred by many companies

Answer 5

visual clearance point

Question 6

any device, connector, or open that is used to connect the line or piece of equipment from a possible source of energy is called a

Answer 6

clearance point

Question 7

types of clearance points are?

Answer 7

visual and non visual

Question 8

a …………….. clearance point is preffered by OSHA but not required

Answer 8

visual

Question 9

why is a visual clearance point preffered?

Answer 9

provides a more safe and secure clearance

Question 10

once the line has been open, locked and tagged it is considered to be?

Answer 10

disconnected

Question 11

open jumpers are utilized as ……………… on both primary and secondary circuits

Answer 11

clearance points

Question 12

reclosers are used as?

Answer 12

clearance points

Question 13

a ……………………………. can be fused and solid and used as a clearance point

Answer 13

single blade disconnect

Question 14

some switches have means of installing a ………… to prevent the switch from opening

Answer 14

lock

Question 15

how to protect against induction?

Answer 15

ground it

Question 16

best way to protect self against lightning?

Answer 16

dont work in it

Question 17

wait at least ……. min before installing grounds on a disconnect capacitor

Answer 17

5

Question 18

grounding near the source may require …….. sets of grounds

Answer 18

2

Question 19

……………………. should be properly sized for the given fault current

Answer 19

grounding equipment

Question 20

………….. , …………… and …………. help protect employees on the ground

Answer 20

protective grounds, insulating equipment and restricted work areas

Question 21

OSHA states that devices used as clearance points must be?

Answer 21

rendered inoperable

Question 22

flying bells are also known as?

Answer 22

span open

Question 23

warm winds blowing accross conductor can create a

Answer 23

static charge

Question 24

……….. work involves protection against both normal and abnormal sources of electrical energy

Answer 24

deenergized

Question 25

when working energized, lineworkers follow three principles to manage current,

Answer 25

insulate, isolate, protect

Question 26

when clearing lines and equipment there are three major objectives.

Answer 26

ensure safety of employees and public, minimize the negative impact on the electrical system, minimize number of customers out of service

Question 27

is responsible for accomplishing the work in the field(normally crew leader). a clearance is issued to the clearance holder, and cannot end until the clearance holder releases the clearance.

Answer 27

clearance holder

Question 28

works at the utilitys operations center and has a system wide perspective and control of the system in real time. this person gives permission for the clearance to occur, can operate devicesremotely, and releases the line or apparatus to the clearance holderso that work can be preformed

Answer 28

system operator

Question 29

is any employee in the field who is physically operating the apparatus or devices used to disconnect the lines or equipment. this is done at the direction of the system operator. this employee could be a troubleman, switchman, roving operator, station operator or other position

Answer 29

field operator

Question 30

are gang operated which means the moving parts are connected so that all three phases operate simultaniously with one action by the operator

Answer 30

air switch

Question 31

............... occurs when a nearby energy source, such as an energized transmission line - electrifies a disconnected and deenergized conductor or conductive objest

Answer 31

induced voltage

Question 32

equipment designed to store electricity may retain a charge long after being disconnected

Answer 32

capacitance