Shared Flashcard Set

Details

Working on lines and equipment test 3
northwest lineman college
27
Other
Professional
02/18/2015

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Cards

Term
What is the golden rule for grounding procedures
Definition
installing grounds always connect to ground source first and then connect to the conductor or equipment with a live line tol
Term
How do you remove grounds
Definition
reverse order, remove conductor end first then ground source last
Term
True or False
Keep jumpers short as possible
Definition
true
Term
Ensure jumpers are rated for the fault current of that particular line
True or False
Definition
True
Term
How far are jumpers required to be from pole
Definition
as far as possible
Term
When confined to one pole what type of grounding method should be utilized whenever possible
Definition
equipotential zone grounding
Term
what are Foreign grounds
Definition
any grounded items in the work area above cluster bracket
Term
What kind of grounding is usually used on a multiple pole project and where are they located
Definition
EPZ & INSTALLED AT EACH WORK LOCATION WITHIN THE WORK ZONE
Term
Are transformers and capacitors considered possible sources
Definition
yes
Term
How do you protect lineworkers on ground while stringing wire
Definition
ground the pulling and tension equipment and wear proper ppe
Term
Who is kept away from downed wire and work sites in general
Definition
the public
Term
are vehicles required to be grounded
Definition
OSHA says it doesn't but necessary precautions be taken when lifts or derricks are being used near energized lines
Term
If you do need to ground a vehicle where do you do so
Definition
ground to system neutral
Term
how long do you wait until you install personal protective grounds on a capacitor bank
Definition
5 minutes
Term
Are ground sources readily available in underground distribution
Definition
yes
Term
why is cable identification critical in underground systems
Definition
important because they cannot be physically traced because they are underground
always good to ground them
Term
4 steps to grounding underground cable
Definition
identify
isolate
test
ground
Term
What is a ground source in transmission
Definition
steel structures or overhead shielding conductors due to no system neutral
Term
Butt ground
Definition
installed with lattice towers; a short grounding jumper that is connected between steel and a driven ground rod
Term
induced voltage ranges
Definition
1000 to 15,000 volts
Term
why are bucket trucks grounded
Definition
not required to but usually is if boom is not rated for the voltage
Term
bracket grounding
Definition
method of grounding provided on both sides of work site
Term
cluster bracket
Definition
terminal point for grounding jumpers used for EPZ grounding
Term
disconnect grounding clamp
Definition
clamp that attaches to disconnect cutout switches
Term
EPZ Grounding
Definition
grounding that is connected to a cluster bracket attached to the pole which provides a shunt that diverts flow around worker
Term
running grounds
Definition
ground conductors that are being installed. rolls in motion as conductor is being pulled out
Term
stringing block ground
Definition
similar to running grounds just installed at various locations along the line
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