Linemen Install Shunts on Energized Lines

ELECTRIC UTILITY OPERATIONS
Linemen Install Shunts
Linemen
Install
Shunts
on
Energized
Lines
ELECTRIC
ELECTRICUTILITY
UTILITY
UTILITYOPERATIONS
OPERATIONS
OPERATIONS
ELECTRIC
ELECTRIC UTILITY OPERATIONS
ELECTRIC
UTILITY
OPERATIONS
ELECTRIC
UTILITY
OPERATIONS
ELECTRIC
UTILITY
OPERATIONS
ELECTRIC
UTILITY
OPERATIONS
ELECTRIC
UTILITY
OPERATIONS
ELECTRIC
UTILITY
OPERATIONS
ELECTRIC
UTILITY
OPERATIONS
ELECTRIC UTILITY OPERATIONS
on Energized Lines
Utilities confront the challenge of line uprates
byUtilities
installing
shuntthe
technology
helicopters.
confront
challengevia
of line
uprates
by installing shunt technology via helicopters.
By Mark Camus, AIR2, LLC
By
By Mark
Mark
Mark Camus,
Camus,
Camus, AIR2,
AIR2,
AIR2, LLC
LLC
LLC
By
lectric utilities must not only operate aging lines and
equipment at higher levels, but they must also adhere
lectric
lectricutilities
utilities
utilities
must
must
not
not
only
only
operate
operate
aging
aging
lines
lines
and
and
lectric
must
not
only
operate
aging
lines
lectric
only
operate
aging
lines
and
to technical,
safetymust
and not
reliability
requirements.
For
equipment
equipment
at
at
higher
higher
levels,
levels,
but
but
they
they
must
must
also
also
adhere
adhere
and
equipment
at
higher
levels,
but
they
must
also
equipment
at higher
but theyAmerican
must also adhere
example,
five years
ago,levels,
The North
Elecadhere
to safety
technical,
safety requirements.
and reliability
to
totechnical,
technical,
technical,
safety
safety
and
andreliability
reliability
reliability
requirements.
requirements.
For
For
and
For
tric ReliabilitytoCorporation
(NERC)
began advising
utilities
requirements.
For
example,
five
years
ago,
The
example,
example,
five
five
years
years
ago,
ago,
The
The
North
North
American
American
ElecElecexample,
years ago,
Theverifying
North American
Electo consider actual
field five
conditions
when
facility ratNorth
American
Electric Reliability
Corporation
tric
tric Reliability
Reliability
Reliability
Corporation
Corporation
(NERC)
(NERC) began
began
began
advising
advising(NERC)
utilities
utilities
tric
Corporation
(NERC)
advising
utilities
ings.began
In turn,
many utilities
have
surveyed
transmission
lines
advising
utilities
to
consider
actual
field facility
conditions
to
to consider
consider
consider
actual
actual
field
field conditions
conditions
conditions
when
when
verifying
verifying
facility
facility ratratratto
actual
field
when
verifying
to identify
critical
issues
and
determine
whether
or
not
hardwhen
verifying
facility
ratings.
In
turn,
many
utilities
have
ings.
ings.
In
In
turn,
turn,
many
many
utilities
utilities
have
have
surveyed
surveyed
transmission
transmission
lines
lines
ings. In turn, many utilities have surveyed transmission lines
waresurveyed
components
can handle
high
temperatures.
tooperating
identifywhether
critical
issues
and
to
toidentify
identify
identifytransmission
critical
critical
issues
issueslines
and
and
determine
determine
whether
or
or
not
nothardhardhardto
critical
issues
and
determine
whether
or
not
After
reviewing
clearance
reports
and
conducting
in-depth
determine
whether
or
not
hardware
components
can
handle
ware
warecomponents
components
componentscan
can
canhandle
handle
handlehigh
high
highoperating
operating
operatingtemperatures.
temperatures.
temperatures.
ware
high
operating
temperatures.
analysis,
utilities
often
immediately
derate
lines
to bring
the
After
After
reviewing
reviewing
clearance
clearance
reports
reports
and
and
conducting
conducting
in-depth
in-depth
After reviewing clearance reports and conducting in-depth
After
reviewing
clearance
reports
and
conducting
in-depth
line rating
into
compliance.
Next, utilities
replace
all
singleanalysis,
analysis,
utilities
utilities
often
often immediately
immediately
immediately
derate
derate
lines
lines to
to
to bring
bring
bring
the
the
analysis,
utilities
often
derate
lines
the
analysis, utilities
often immediately
derate
lines to connecbring the
die compression
dead-ends
and
splices
with
two-stage
line
line
rating
rating
into
into
compliance.
compliance.
Next,
Next,
utilities
utilities
replace
replace
all
all
singlesingleline rating into compliance. Next, utilities replace all singleline
rating the
intoline’s
compliance.
Next,rating,
utilitieswhich
replace
allresult
single-die
tors to
recover
emergency
can
in
die
die
compression
compression
dead-ends
dead-ends
and
andsplices
splices
spliceswith
with
withtwo-stage
two-stage
two-stage
connecconnecdie
compression
dead-ends
and
connec-
EE
compression dead-ends and splices with two-stage connectors
tors
torsto
to
torecover
recover
recoverthe
the
theline’s
line’s
line’semergency
emergency
emergencyrating,
rating,
rating,which
which
whichcan
can
canresult
result
resultin
in
in
tors
Reprinted from T&D World magazine’s June 2015 issue.
a specific maximum conductor operating temperature.
Depending on line length, utilities must replace dozens or
specific
specific
maximum
maximum
conductor
conductor
operating
operating
temperature.
temperature.
recover
the of
line’s
emergency
rating, which
cancompression
result in a
aaato
specific
maximum
conductor
operating
temperature.
even
hundreds
compression
dead-ends
and
Depending
Depending
on
on
line
line
length,
length,
utilities
utilities
must
must
replace
replace
dozens
dozens
or
or a
specific
maximum
conductor
operating
temperature.
Depending
onField
line length,
utilities
or
mid-span
splices.
crews not
onlymust
will replace
have todozens
work on
Depending
on
line
length,
utilities
must
replace
dozens
or
even
even
hundreds
hundreds
of
of
compression
compression
dead-ends
dead-ends
and
and
compression
compression
evenschedule,
hundredsbut
of they
compression
compression
tight
may not dead-ends
be able to and
obtain
a clearance
even
hundreds
of
compression
dead-ends
and
compression
mid-span
mid-span
splices.
splices.
Field
Field
crews
crews
not
not
only
only
will
will
have
have
to
to
work
work
on
on
splices.
crews
not only willmay
have
to worka on
aaa
tomid-span
de-energize
theField
lines.
Circumstances
require
utility
mid-span
splices.
Field
crews
not
only
will
have
to
work
on
tight
tight
schedule,
schedule,
but
but
they
they
may
may
not
not
be
be
able
able
to
to
obtain
obtain
a
a
clearance
clearance
they may
notanother
be able source
to obtain
clearancea
totight
fundschedule,
spinningbut
reserve
from
to aaccommotight
schedule,
but
they
may
not
be
able
to
obtain
a
to
to
de-energize
de-energize
the
the
lines.
lines.
Circumstances
Circumstances
may
may
require
require
utility
utility
to de-energize the lines. Circumstances may requireclearance
aaa utility
date
the outage if
the
duration
of the transferred
load
exceeds
to
de-energize
the
lines.
Circumstances
may
require
a
utility
to
to
fund
fund
spinning
spinning
reserve
reserve
from
from
another
another
source
source
to
to
accommoaccommoto fund spinning reserve from another source to accommo- to
the
emergency
rating
of
the alternate
transmission
line.
To
fund
spinning
reserve
from
another
source
to accommodate
date
date
the
the
outage
outage
ififthe
the
theduration
duration
duration
of
ofthe
the
thetransferred
transferred
transferred
load
load
exceeds
exceeds
date
the
outage
if
of
load
exceeds
circumvent
these
challenges
and
save
time
in
the
field,
AIR2,
the
outage
if
the
duration
of
the
transferred
load
exceeds
the
theemergency
emergency
emergencyrating
rating
ratingof
of
ofthe
the
thealternate
alternate
alternatetransmission
transmission
transmissionline.
line.
line.To
To
To
the
the
emergency
rating
the
alternate
transmission
line.
an
airborne
power
line of
contractor,
has
helped
utilities
toTo
incircumvent
circumvent
these
these
challenges
challenges
and
and
save
save
time
time
in
in
the
the
field,
field,
AIR2,
AIR2,
circumvent these challenges and save time in the field, AIR2,
circumvent
these
challenges
and
save
time
in
the
field,
AIR2,
stall
ClampStar
shunt
Classic
Connectors
an
an airborne
airborne
airborne power
power
power
line
linetechnology
contractor,
contractor,from
has
has helped
helped
helped
utilities
utilities
to
toinininan
line
contractor,
has
utilities
to
an
airborne power line contractor, has helped utilities to
via
helicopter.
stall
stall
ClampStar
ClampStar
shunt
shunt
technology
technology
from
from
Classic
Classic
Connectors
Connectors
stall ClampStar shunt technology from Classic Connectors
install ClampStar shunt technology from Classic Connectors
via
viahelicopter.
helicopter.
helicopter.
via
via helicopter.
The
TheAIR2
AIR2crew
crewisisen
enroute
routeto
tothe
thejob
jobsite,
site,where
wherethey
theywill
willinstall
install22
22mid-span
mid-spanshunts
shuntson
onday
dayone.
one.
The crew
AIR2 crew
en route
to job
the job
where
they
install
mid-spanshunts
shuntson
onday
dayone.
one.
The AIR2
is en isroute
to the
site,site,
where
they
willwill
install
2222
mid-span
June2015
2015 || www.tdworld.com
www.tdworld.com
64F
64F June
June 2015
| www.tdworld.com
64F 2015
| www.tdworld.com
64F June
Evaluating Alternatives
Evaluating
Evaluating
Alternatives
Alternatives
Before installing
the shunt
Evaluating
Alternatives
Before
Before
installing
installing
the
the
shunt
shuntretechnology,
utilities
primarily
Before installing the shunt
technology,
technology,
utilities
utilities
primarily
primarily
rereplaced all single-stage
splicesreand
technology,
utilities primarily
placed
placed
all
all
single-stage
single-stage
splices
splices
and
and
placed
all single-stage
splices and
dead-ends
with two-stage
comdead-ends
dead-ends connectors.
with
with two-stage
two-stage
two-stage
comcomdead-ends
with
compression
However,
pression
pression
connectors.
connectors.
However,
However,
pression
However,
there areconnectors.
several concerns
with
there
there are
are
are several
several
several concerns
concerns
concerns with
with
with
there
this method.
First of all, utilities
this
this method.
method. First
First
First of
of
of all,
all,
all, utilities
utilities
utilities
this
maymethod.
face challenges
completing
may
may
face
face
challenges
challenges
completing
completing
may
face challenges
the project
on timecompleting
at a reasonthe
the project
project
project on
on
on time
time
time at
at
at aaa reasonreasonreasonthe
able cost because of the number
able
able
cost
cost
because
because
of
of
the
the
number
number
able cost because of the number
of
connectors
requiringreplacereplaceof
of connectors
connectors
connectors requiring
requiring
requiring
replaceof
replacement.
Also,
companies
may
face
ment.
ment. Also,
Also,
Also, companies
companies
companies may
may
may face
face
face
ment.
reliability
concerns
over
the
reliability
reliability concerns
concerns
concerns over
over
over the
the
the
reliability
introduction
of two
two potential
potential
introduction
introduction of
of
of
two
two
potential
potential
introduction
“weak”
points
in
the
line
because
“weak”
“weak”
points
points
in
in
the
the
line
line
because
because
“weak” points in the line because
replacing
a
single
mid-span
splice
replacing
replacing
a
a
single
single
mid-span
mid-span
splice
splice
replacing a single mid-span splice
typically
typically
requires
requires
two
two
new
new
splices
splices
typically
requires
two
new
splices
typically requires two new splices
plus
plus aaa length
length
length
of
of
conductor
conductor
in
inin
its
itsits
plus
lengthof
ofconductor
conductorin
plus
its
place.
place.
Linemen
Linemen
also
also
must
must
spend
spend
place.
Linemen
also
must
spend
place. Linemen also must spend
extra
extra time
time
time
on
on
the
the
dead-ends
dead-ends
bebeextra
beextra
timeon
onthe
thedead-ends
dead-ends
because
cause
they
they
must
must
remove
remove
a
a
length
length
cause
causethey
theymust
mustremove
removea alength
length
of
of conductor.
conductor.
conductor. To
To
To
maintain
maintain
existexistof
of
conductor.
Tomaintain
maintainexistexisting
ing
tensions,
tensions,
extra
extra
conductor
conductor
ing
ing tensions,
tensions, extra
extra conductor
conductor
and
and another
another splice
spliceis
isis required
requiredor
or
or
and
and another
anothersplice
splice isrequired
required or
The
connector
shown
was
considered
thermally
failed
at
The
connector
shown
was
considered
thermally
failed
connector
shown
was
considered
thermally
failed
atatat
The
connector
shown
was
considered
thermally
failed
The
connector
shown
was
considered
thermally
failed
at
250°C
(482°F)
and
now
has
been
corrected
with
ClampStar.
250°C
(482°F)
and
now
has
been
corrected
with
ClampStar.
(482°F)
and
now
has
been
corrected
with
ClampStar.
250°C
(482°F)
and
now
has
been
corrected
with
ClampStar.
250°C (482°F) and now has been corrected with ClampStar.
Linemen
position
the
ClampStar
mid-span
shunt
around
the 1590
Linemen
position
ClampStar
mid-span
shunt
around
Linemen
position
thethe
ClampStar
mid-span
shunt
around
the the
15901590
kcmil
54/19
ACSR
single-die
compression
splice.
kcmil
54/19
ACSR
compression
splice.
kcmil
54/19
ACSR
single-die
compression
Linemen
position
thesingle-die
ClampStar
mid-spansplice.
shunt
around the 1590
kcmil 54/19 ACSR single-die compression splice.
Inmany
many
cases,
utilities
often
to the
work
the
lines
cases,
utilities
often
to
work
the
lines
ener-enerIn In
many
cases,
utilities
often
optopt
toopt
work
lines
enerIn
many
cases,
utilities
often
opt
to
work
the
lines
energized
as
well
as
from
a
helicopter
for
several
key
reasons.
gized
well
from
a helicopter
several
reasons.
gized
as as
well
as as
from
a helicopter
forfor
several
keykey
reasons.
ForFor For
gized
as
well
as
from
a
helicopter
for
several
key
reasons.
For
example,
in
environmentally
sensitive
areas,
utilities
must
example,
environmentally
sensitive
areas,
utilities
must
mat mat
example,
in in
environmentally
sensitive
areas,
utilities
must
mat
example,
in
environmentally
sensitive
areas,
utilities
must
mat
or
bridge
wetlands
and
streams
to
gain
access
to
the
structures
bridge
wetlands
and
streams
to gain
access
to the
structures
or or
bridge
wetlands
and
streams
to gain
access
to the
structures
or bridge wetlands and streams to gain access to the structures
or
Also,
by
using
traditional
ground
equipment
rather
orsplices.
splices.
Also,
by
using
traditional
ground
equipment
rather
or
splices.
Also,
by
using
traditional
ground
equipment
rather
or splices. Also, by using traditional ground equipment rather
than
helicopters,
utilities
must
discover
a way
to traverse
pri- prithan
helicopters,
utilities
must
discover
a way
to traverse
than
helicopters,
utilities
must
discover
a
way
to
traverse
prithan helicopters, utilities must discover a way to traverse private
properties
to to
gain
access
to the
right-of-way.
un- unproperties
the
right-of-way.
It’s
vate
properties
to
access
to
right-of-way.
It’s It’s
notnot
un-not
vatevate
properties
to gain
gain gain
accessaccess
to the
theto
right-of-way.
It’s
not
uncommon
for
a
landowner’s
path
to
provide
the
only
feasible
common
for
a
landowner’s
path
to
provide
the
only
feasible
common
for
a
landowner’s
path
to
provide
the
only
feasible
common for a landowner’s
only feasible
AIR2
helicopter
crew
performs
work
on
dead-ends.
AIR2
helicopter
crew
performs
work
on
dead-ends.
access
a structure,
and
in these
situations,
workers
havehave
AIR2
helicopter
performs
work
on
dead-ends.
AIR2
helicoptercrew
crew
performs
work
on
dead-ends.
access
to
a structure,
and
in these
situations,
workers
may
access
to
aastructure,
and
in
these
situations,
workers
maymay
have
access
toto
structure,
and
workers
may
have
a bridge
to to
safely
accommodate
weight
a of
line
toto
rebuild
bridge
to safely
thethe
weight
of
line
torebuild
rebuild
a bridge
safely
accommodate
the
weight
a line
to
rebuild
aa bridge
to
accommodate
weight
of aaof
line
truck.
the
insulator
assemblyhas
hastoto
tobe
belengthened,
lengthened,
thus
requiring
truck.
theinsulator
insulatorassembly
assembly
has
be
lengthened,
thus
requiring
truck.
the
insulator
assembly
has
to
be
lengthened,
thus
requiringtruck.
thus
requiring
Finally,
the
heights
many
dead-ends
splices
the
jumpersto
belengthened.
lengthened.
Finally,
the
heights
of of
many
of of
thethe
and
splices
the
tobe
be
lengthened.
Finally,
the
heights
of
many
of
the
dead-ends
andand
splices
the
jumpers
Finally,
the
heights
of
many
ofdead-ends
the
dead-ends
and
splices
jumpers
to
be
lengthened.
could
be
over
100
ft
aboveground
with
uneven
terrain
below,
Utilities
decide
whether
to
perform
the
work
with
the
could
be
over
100
ft
aboveground
with
uneven
terrain
below,
must
decide
whether
to
perform
the
work
with
the
be over
100 ft100
aboveground
with uneven
terrainterrain
below, below,
Utilities
toto
perform
thethe
work
withwith
the thecould
could
be over
ft aboveground
with uneven
Utilitiesmust
mustdecide
decidewhether
whether
perform
work
some
of of
thethe
locations
nearly
impossible
to reach
safely
line de-energized
de-energized or
the
system
load.
InIn making
making
some
locations
nearly
impossible
to reach
safely
line
or energized
energizedbecause
because
the
system
load.
some
of
the
nearly
impossible
to reach
ofofof
the
system
load.
In
making
some
oflocations
the locations
nearly
impossible
tosafely
reach safely
line de-energized
de-energizedororenergized
energizedbecause
because
of
the
system
load.
Inmaking
from
a
truck.
As
such,
working
from
the
ground
can
quickly
order
for
the
work
to
be
performed
with
the
line
de-energized,
from
a
truck.
As
such,
working
from
the
ground
can
quickly
order
work
to
be
performed
with
the
line
de-energized,
fromfrom
a truck.
As such,
working
from the
ground
can quickly
order for
totobe
with
thethe
line
de-energized,
a an
truck.
As such,
working
from
the ground
can quickly
order
forthe
thework
work
beperformed
performed
with
line
de-energized,
evolve
into
expensive
option
requiring
extensive
coordinautilities
may
need
to
conduct
significant
temporary
work
to enevolve
into
expensive
option
requiring
extensive
coordinautilities
may
need
to
conduct
significant
temporary
work
en- evolve
into
anan
expensive
option
requiring
extensive
coordinautilities
may
need
toto
conduct
significant
temporary
work
to to
enevolve
into
an
expensive
option
requiring
extensive
coordinautilities
may
need
conduct
significant
temporary
work
to
ention
efforts,
making
the useuse
of aofhelicopter
a more
viable
option.
sure all
all tap
tap lines
energized
during
construction.
tion
efforts,
making
a helicopter
a more
viable
option.
sure
lines could
could remain
remain
energized
during
construction. tion
efforts,
making
thethe
use
a helicopter
a more
sure
all
energized
during
construction.
efforts,
making
theofuse
of a helicopter
aviable
moreoption.
viable option.
sure
all tap
taplines
linescould
couldremain
remain
energized
during
construction. tion
Installing
Shunt
Technology
Installing
Shunt
Technology
Shunt
Technology
Installing
Shunt
Technology
Installing
Shunt
Technology
Given
the
numerous
challenges
accompanied
by the
drawGiven
the
numerous
challenges
accompanied
the
drawGiven
the
numerous
challenges
accompanied
by
the
drawGiven
thenumerous
numerous
challenges
accompanied
byby
the
drawGiven
the
challenges
accompanied
by
the
drawbacks
of
a
splice
and
dead-end
replacement
option,
investigatbacks
of
a
splice
and
dead-end
replacement
option,
investigatbacks
of
a
splice
and
dead-end
replacement
option,
investigatbacksofofa asplice
spliceand
anddead-end
dead-endreplacement
replacementoption,
option,investigatinvestigatbacks
ing
the
use
ofof
shunts
isisa alogical
alternative.
Many
utilities
have
ing
the
use
shunts
logical
alternative.
Many
utilities
have
ingthe
theuse
use
of
shunts
isisaaalogical
logical
alternative.
Many
utilities
have
ing
the
use
of
shunts
logical
alternative.
Many
utilities
have
ing
of
shunts
is
alternative.
Many
utilities
have
never
used
shunts
on
a
permanent
basis
before.
However,
the
never
used
shunts
on
a
permanent
basis
before.
However,
the
never
used
shunts
on
a
permanent
basis
before.
However,
the
never
usedshunts
shunts
on
permanent
basisbefore.
before.
However,
the
never
used
on
a apermanent
basis
However,
the
ClampStar
shunt
provides
an
excellent
solution
for
permaClampStar
shunt
provides
an
excellent
solution
for
permaClampStar
shunt
provides
an
excellent
solution
for
permaClampStar
shuntprovides
provides
excellent
solution
for
permaClampStar
shunt
ananexcellent
solution
for
permanent
mechanical
and
electrical
upgrade
to
existing
conductor
nent
mechanical
and
electrical
upgrade
to
existing
conductor
nent
mechanical
and
electrical
upgrade
to
existing
conductor
nent
mechanical
and
electrical
upgrade
to
existing
conductor
nent
mechanical
and
electrical
upgrade
to
existing
conductor
connections.
The
ClampStar
shunt
isismade
up
ofoftwo
sets
of
connections.
The
ClampStar
shunt
made
up
two
sets
connections.
The
ClampStar
shunt
made
up
ofoftwo
two
sets
ofofof
connections.
Thewhich
ClampStar
shunt
madeup
upof
two
setsand
connections.
The
ClampStar
shunt
isisisconductor
made
sets
of
clamping
ends,
secure
to
the
with
bolts
clamping
ends,
which
secure to
the
conductor
with
bolts
and
clamping
ends,
which
secure
the
conductor
with
bolts
and
clamping
ends,
which
securetoto
tothe
theconductor
conductor
withbolts
bolts
and
clamping
ends,
which
secure
with
and
shear
nuts,
with
two
strands
of
conductor
ininbetween.
Classic
shear
nuts,
with
two
strands
of
conductor
between.
Classic
shear
nuts,
with
two
strands
of
conductor
in
between.
Classic
shear
nuts,with
with
twostrands
strands
conductor
between.
Classic
shear
nuts,
two
ofofconductor
between.
Classic
Connectors
designed
the
shunt
totohave
ainain
total
resistance
less
Connectors
designed
the
shunt
have
total
resistance
less
Connectors
designed
the
shunt
to
have
aatotal
resistance
less
Connectors
designed
the
shunt
to
have
total
resistance
less
Connectors
designed
the
shunt
to
have
a
total
resistance
less
than
the
main
line
conductor
and
splice
combined.
With
this
than
main
conductor
and
splice
combined.
With
this
than
thethe
main
lineline
conductor
and
splice
combined.
With
this
than
themain
mainline
line
conductorand
and
splice
combined.
this
than
the
splice
combined.
With
this
configuration,
theconductor
ClampStar
shunt
isisnot
only
able
toWith
redirect
configuration,
ClampStar
shunt
not
only
able
redirect
configuration,
thethe
ClampStar
shunt
is not
only
able
to to
redirect
configuration,
the
ClampStar
shunt
is
not
only
able
to
redirect
configuration,
the
ClampStar
shunt
is
not
only
able
to
redirect
the current
such
that
the splice
never
experiences
temperacurrent
such
that
splice
never
experiences
temperathethe
current
such
that
thethe
splice
never
experiences
temperathecurrent
currentsuch
suchthat
thatthe
thesplice
splicenever
neverexperiences
experiencestemperatemperathe
This
infrared
photo
shows
ClampStar
serving
the
full
electriThis
infrared
photo
shows
ClampStar
serving
the
full
electriphoto
shows
ClampStar
serving
the
full
electriThis
infrared
photo
shows
ClampStar
serving
the
full
electriThis
infrared
photo
shows
ClampStar
serving
the
full
electrical
and
mechanical
load
on
aa200°C
(392°F)
conductor.
cal
and
mechanical
load
on
200°C
(392°F)
conductor.
cal
and
mechanical
load
on
a
200°C
(392°F)
conductor.
cal
and
mechanical
load
on
a
200°C
(392°F)
conductor.
mechanical load on a 200°C (392°F) conductor.
tures
greater
than
ambient,
it also
restores
the
mechanical
intures
greater
than
ambient,
also
restores
the
mechanical
intures
greater
than
ambient,
ititit
also
restores
the
mechanical
intures
greater
than
ambient,
italso
also
restores
the
mechanical
intures
greater
than
ambient,
restores
the
mechanical
integrity
to
its
original
strength,
preventing
future
mechanical
tegrity
to
its
original
strength,
preventing
future
mechanical
tegrity
to
its
original
strength,
preventing
future
mechanical
tegrity
to
its
original
strength,
preventing
future
mechanical
tegrity to its original strength, preventing future mechanical
splice
failure.
splice
failure.
splice
failure.
splice
failure.
splice
failure.
In
addition,
the
dead-end
style
ClampStar
shunts
are
In
addition,the
thedead-end
dead-endstyle
style
ClampStar
shunts
are
In
addition,
ClampStar
shunts
are
addition,
the
dead-end
style
ClampStar
shunts
are
InInaddition,
the
dead-end
style
ClampStar
shunts
are
equipped
with
a
tether
device
that
provides
a
robust
mechaniequipped
with
a
tether
device
that
provides
a
robust
mechaniequipped
with
a
tether
device
that
provides
a
robust
mechaniequipped
with
a
tether
device
that
provides
a
robust
mechaniequipped
with
a
tether
device
that
provides
a
robust
mechanical
restraint,
which
will
keep
the
line
in
the
air
should
excescal
restraint,
which
will
keep
the
line
in
the
air
should
excescal
restraint,
which
will
keep
the
line
in
the
air
should
excescal
restraint,
which
will
keep
the
line
in
the
air
should
excescal
restraint,
which
will
keep
the
line
in
the
air
should
excessive
loading
occur
at
the
dead-end.
The
capabilities
of
the
sive
loadingoccur
occurat atthe
thedead-end.
dead-end.The
Thecapabilities
capabilitiesofofthe
the
sive
loading
sive
loading
occur
at
the
dead-end.
The
capabilities
of
the
sive
loading
occur
at
the
dead-end.
The
capabilities
of
the
ClampStar
shunts
offer
numerous
advantages,
especially
when
ClampStar
shunts
offer
numerous
advantages,
especiallywhen
when
ClampStar
shunts
offer
numerous
advantages,
especially
ClampStar
shunts
offer
numerous
advantages,
especially
when
ClampStar
shunts
offer
numerous
advantages,
especially
when
installing
them
from
Not
only
does
this
option
installing
them
fromahelicopter.
ahelicopter.
helicopter.Not
Notonly
onlydoes
doesthis
thisoption
option
installing
them
from
installing
them
fromaaerosion
ahelicopter.
helicopter.
Not
onlydoes
does
thisoption
option
installing
them
from
Not
only
this
remove
any
required
control
or
other
environmental
remove
any
required
erosion
controlororother
otherenvironmental
environmental
remove
any
required
erosion
control
remove
any
required
erosion
control
or
other
environmental
remove
any
required
erosion
control
or
other
environmental
preservation
measures,
but
also
eliminates
other
logistical
preservation
measures,but
butititalso
alsoeliminates
eliminatesother
otherlogistical
logistical
preservation
measures,
preservationassociated
measures,with
butitittrucks,
italso
alsoeliminates
eliminates
other
logistical
preservation
measures,
but
other
logistical
nightmares
and
allows
for
the
lines
nightmares
associated
with
trucks,and
andallows
allowsfor
forthe
thelines
linestoto
to
nightmares
associated
with
trucks,
nightmares
associated
with
trucks,
and
allows
for
the
lines
nightmares
associated
with
trucks,
and
allows
for
the
lines
toto
remain
energized,
significantly
reducing
the
length
of
the
conremain
energized,
significantly
reducing
the
lengthofofthe
theconconremain
energized,
significantly
reducing
the
length
remainenergized,
energized,
significantly
reducing
thelength
lengthofofthe
theconconremain
significantly
reducing
the
struction
schedule
and
lowering
overall
cost.
struction
schedule
and
lowering
overall
cost.
struction
schedule
and
lowering
overall
cost.
structionschedule
scheduleand
andlowering
loweringoverall
overallcost.
cost.
struction
Saving
Time
SavingTime
Time
Saving
Saving
Time
Saving
Time
Most
Most ClampStar
ClampStar shunts
shunts
The Effect
Effect of
High
Temperatures
on
Conductors
The
ofHigh
High
Temperatures
onConductors
Conductors
The
Effect
of
Temperatures
on
Single-stage
connectors
were
originally
designed
for
a
maximum
operating temperature of 75°C (167°F). According
The
Effect of High Temperatures oncontinuous
Conductors
Single-stage connectors were originally designed for a maximum continuous operating temperature of 75°C (167°F). According
toSingle-stage
recent studies
and long-term
tests
by internationally
research
facilities
like Electric
Power Research
InstituteAccording
and Oak
connectors
were
originally
designed
forrecognized
afor
maximum
continuous
operating
temperature
of 75°Cof(167°F).
connectors
were
originally
designed
a maximum
continuous
operating
temperature
75°C
(167°F).
According
toSingle-stage
recent studies
and long-term
tests
internationally
recognized
research
facilities
like Electric
Power Research
Institute
and
Oak
thistests
type
ofby
connector
can be
considered
high risk
when
operated
at Power
temperatures
as low
as 125°C
(257°F).
toRidge
recentNational
studies Laboratory,
and long-term
by
internationally
recognized
research
facilities
like Electric
Research
Institute
and Oak
toRidge
recent
studies
and
long-term
tests
by
internationally
recognized
research
facilities
like
Electric
Power
Research
Institute
and
Oak
National
Laboratory,
this
type
of
connector
can
be
considered
high
risk
when
operated
at
temperatures
as
low
as
125°C
(257°F).
Manufacturers
of
these
types
of
connectors
recommend
that
they
not
be
operated
on
lines
above
93°C
to
100°C
(200°F
to
212°F),
Ridge National Laboratory, this type of connector can be considered high risk when operated at temperatures as low as 125°C (257°F).
Ridge
National
Laboratory,
this
type
of
connector
can
be
considered
high
risk
when
operated
at
temperatures
as
low
as
125°C
(257°F).
Manufacturers
of
these
types
of
connectors
recommend
that
they
not
be
operated
on
lines
above
93°C
to
100°C
(200°F
to
212°F),
because temperatures
aboveofthis
level subject
the connectors
to annealing,
resulting
a loss
of a significant
portion
of their
tensile
Manufacturers
of these types
connectors
recommend
that they
not be operated
oninlines
above
93°C to 100°C
(200°F
to 212°F),
Manufacturers
of these
types of
connectors
recommend
thatas
they
not
be to
operated
on
above
93°C to
100°C
(200°F
212°F),
because
above
this
level
the
connectors
to
annealing,
resulting
alines
loss of
a significant
portion
of
theirto
tensile
strength. temperatures
To examine
conductor
life
and subject
hardware
components
they
relate
the highin
temperatures,
utilities
can
use high-definition
because temperatures above this level subject the connectors to annealing, resulting in a loss of a significant portion of their tensile
strength.
To
examine
conductor
andstill
hardware
they
relate
to
the
highintemperatures,
utilities
can
use high-definition
because
above
thislife
level
subject
connectors
to
annealing,
resulting
aand
losstake
of aboth
significant
portion
of images,
their tensile
cameras.temperatures
In turn,
they can
produce
both
shotsthe
ascomponents
well
as videoas
from
the
airborne
platform
visual and
infrared
strength. To examine conductor life and hardware components as they relate to the high temperatures, utilities can use high-definition
which allows
the utility
to identify
trouble
cameras.
In examine
turn,
theyconductor
can
produce
both
still
shots ascomponents
well as videoasfrom
airborne
platform
and take bothutilities
visual and
images,
strength.
To
life
andspots.
hardware
theythe
relate
to the
high temperatures,
caninfrared
use high-definition
cameras.
In turn,
they can
produce
both still shots
as wellaged
as video from
the30airborne
platform
and take both
visual
and
infrared
images,
Taking
infrared
images
is particularly
critical
those
to 40
years ofplatform
age or older,
thevisual
design
lifeinfrared
of the images,
which
allows
the
utilitycan
to identify
trouble
spots.
cameras.
Inthe
turn,
they
produce
both still
shotswith
as well aslines,
video
from
the
airborne
andbecause
take both
and
which
allows the
utility
to identify
trouble
spots.
connectors
used
at that
time
was
intended
tocritical
be no with
moreaged
than lines,
30 years.
Furthermore,
transmission
built
beforethe
thedesign
year 2000
Taking
the
infrared
images
is particularly
those
30 to 40 years
of age orlines
older,
because
life of the
which
allows
utility
to
identify
trouble spots.
Taking
the the
infrared
images
islimitations
particularly
critical
withasaged
lines,
those
30suitable
to 40 years
of age or older,
because
the designratings
life of of
the
used
connectors
with
thermal
of
75˚C,
and
such,
they
are
not
for
temperatures
typical
for
emergency
connectors
used
at that
time was
intended tocritical
be nowith
moreaged
than lines,
30 years.
Furthermore,
transmission
lines
built
before the
the design
year 2000
Taking
the
infrared
images
is
particularly
those
30
to
40
years
of
age
or
older,
because
life of the
connectors
used
at
that
time
was
intended
to
be
no
more
than
30
years.
Furthermore,
transmission
lines
built
before
the
year
2000
any duration.
Thewith
inhibitors
used
at that time
were and
mineral
oil-based
and
not suitable
intendedfor
fortemperatures
higher temperatures.
Therefore,
when
a
used
connectors
thermal
limitations
of 75˚C,
as such,
they
are
not
typical
for
emergency
ratings
of
connectors
used
at
that
time
was
intended
to
be
no
more
than
30
years.
Furthermore,
transmission
lines
built
before
the
year
used
connectors
with
thermal
and before
as such,the
they
are
temperatures
typical for
emergency
ratings of 2000
utility
performs an
analysis
oflimitations
aged lines,ofor75˚C,
any built
turn
ofnot
thesuitable
century, for
they
must pay particular
attention
to connectors.
any
duration.
The
inhibitors
used
at
that
time
were
mineral
oil-based
and
not
intended
for
higher
temperatures.
Therefore,
when
a
used
connectors
with thermal
of
75˚C,
and asthe
such,
they
are
not
suitablefor
forhigher
temperatures
typical
for
emergency
Through
this analysis,
utilities
may
that
although
clearances
and
conductor
could
probably
handle
the
elevated
any
duration.
The
inhibitors
usedlimitations
at
thatlearn
time
were
mineral
oil-based
and
not
intended
temperatures.
Therefore,
when a ratings of
utility
performs
aninhibitors
analysis ofused
agedatlines,
or anywere
builtmineral
before the
turn of and
the century,
they must
pay particular
attentionTherefore,
to connectors.
any
duration.
The
that
time
oil-based
not
intended
for
higher
temperatures.
when a
temperatures,
components
such
as
single-stage
compression
dead-ends
and
splices
are
quite
often
inadequate.
Using
shunt
utility performs an analysis of aged lines, or any built before the turn of the century, they must pay particular attention to connectors.
Through
thisananalysis,
utilities
may
learn
although
the clearances
conductor
could
probably
handle the
elevated
utility
performs
analysis
of aged
lines,
orthat
any
built by
before
the turn
of and
the
century,
they
must
pay handle
particular
to connectors.
technology
successfully
addresses
these
providing
an excellent
mechanical
and
electrical
solution
for line uprate
Through
this
analysis,
utilities
may
learninadequacies
that
although
the
clearances
and
conductor
could
probably
the attention
elevated
temperatures,
components
such as single-stage
compression
dead-ends
andde-energizing
splices are quite
often
inadequate.
Usinginstallation
shunt
projects.
When
combined
with helicopter
installation,
electricthe
utilities
canand
avoid
lines
and
save considerable
Through
this
analysis, utilities
learn
that
although
clearances
and
conductor
probably
handle
elevated
temperatures,
components
such
asmay
single-stage
compression
dead-ends
splices
are quitecould
often
inadequate.
Usingthe
shunt
technology
successfully
addresses
these
inadequacies
by
providing
an
excellent
mechanical
and
electrical
solution
for
line
uprate
time translating
into lower
costs
reliability
for end
users.
temperatures,
components
suchand
as higher
single-stage
compression
dead-ends
and
splices are
quite
often inadequate.
Using
shunt
technology
successfully
addresses
these
inadequacies
providing
an excellent
mechanical
and
electrical
for line
uprate
projects. When
combined
with helicopter
installation,byelectric
utilities
can avoid
de-energizing
lines and solution
save considerable
installation
technology
successfully
addresses
these
inadequacies
by
providing
an
excellent
mechanical
and
electrical
solution
for
line
uprate
projects.
When combined
with
helicopter
installation,
utilities
time translating
into lower
costs
and higher
reliabilityelectric
for end
users.can avoid de-energizing lines and save considerable installation
projects.
Wheninto
combined
withand
helicopter
installation,
electric
utilities can avoid de-energizing lines and save considerable installation
time
translating
lower costs
higher reliability
for end
users.
www.tdworld.com | June 2015 64G
time translating into lower costs and higher reliability for end users.
www.tdworld.com | June 2015 64G
www.tdworld.com | June 2015 64G
www.tdworld.com | June 2015 64G
The
transmission
lines
run
horizontal
out
ofofswitchyard
for
several
spans
then
roll totothe
self-supporting,
The
transmission
lines
run
horizontal
out
switchyard
for
several
spans
then
self-supporting,
The
transmission
lines
run
horizontal
out
of switchyard
for
several
spans
then
rollroll
to thethe
self-supporting,
single-pole
structures
shown
ininthe
background.
The
installed
ClampStar
mid-span
shunts
are shown
single-pole
structures
shown
the
background.
The
installed
ClampStar
mid-span
shunts
shown
single-pole
structures
shown
in
the
background.
The
installed
ClampStar
mid-span
shunts
areare
shown
The
transmission
lines
run
horizontal
out
switchyard
for
several
spans
then
roll
the
self-supporting,
The
transmission
lines
run
horizontal
out
ofof
switchyard
for
several
spans
then
roll
toto
the
self-supporting,
on
the
conductor.
on the
conductor.
on
the
conductor.
single-polestructures
structuresshown
shownininthe
thebackground.
background.The
Theinstalled
installedClampStar
ClampStarmid-span
mid-spanshunts
shuntsare
areshown
shown
single-pole
theconductor.
conductor.
ononthe
June
2015
| |www.tdworld.com
64H
June
2015
www.tdworld.com
64H
June
2015
| www.tdworld.com
64H
June
2015
|
www.tdworld.com
64H
64H June 2015 | www.tdworld.com
Most ClampStar shunts
Most
ClampStartime
shunts
Most
ClampStar
shunts
have
an installation
of
have
installationtime
time
have
ananinstallation
ofof
have
an
installation
time
have
an
installation
time
ofof
less
than
10
minutes
and
can
less
than1010minutes
minutesand
andcan
can
less
than
less
than
10
minutes
and
can
less
than
10
minutes
and
can
be
installed
on
an
energized
installedononananenergized
energized
bebeinstalled
beinstalled
installed
onan
anenergized
energized
line
with
hot
stick
or livebe
on
line
withaaahot
hot
stick
liveline
with
stick
ororliveline
barehand
crew.
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line
with
a
hot
stick
orliveliveline
with
a
hot
stick
or
linebarehand
barehandcrew.
crew.Despite
Despite
line
the
higher
material
costs
line
barehand
crew.
Despite
line
barehand
crew.
Despite
thehigher
highermaterial
materialcosts
costsofof
of
the
the
ClampStar
shunts
verthe
higher
material
costs
the
higher
material
costs
ofof
theClampStar
ClampStarshunts
shunts
verthe
versus
the
splice
and
dead-end
the
ClampStar
shunts
verthe
ClampStar
shunts
versus
the
spliceand
and
dead-end
sus
the
splice
dead-end
materials,
ClampStar
shunts
sus
the
splice
and
dead-end
sus
the
splice
and
dead-end
materials,ClampStar
ClampStarshunts
shunts
materials,
installed
by
helicopter
will
materials,
shunts
materials,
shunts
installed
byClampStar
helicopter
will
installed
byClampStar
helicopter
will
typically
decrease
most
coninstalled
by
helicopter
will
installed
by
helicopter
will
typicallydecrease
decreasemost
mostconcontypically
struction
time
by
70%
to
typically
decrease
most
contypically
decrease
most
constructiontime
timebyby70%
70%toto
struction
80%.
structiontime
timebyby70%
70%toto
struction
80%.
80%.
Case
in
point:
On
re80%.
80%.
Caseininpoint:
point:On
OnaaarereCase
cent
uprate
project,
AIR2
Case
in
point:
On
a
reCase
in
point:
On
a
recentuprate
uprateproject,
project, AIR2
AIR2
cent
forecasted
that
it
could
cent
uprate
project,
AIR2
cent
upratethat
project,
AIR2
forecasted
that
could
forecasted
it it could
complete
three-month
forecastedaathat
could
forecasted
it it could
complete
a that
three-month
complete
three-month
job
in only
weeks.
The
complete
a three-month
three-month
job
onlyfour
four
weeks.The
The
complete
afour
job
ininonly
weeks.
lines
were
primarily
built
on
lines
primarily
builtThe
on
jobin
inwere
only
fourweeks.
weeks.
The
job
only
four
lines
were
primarily
built
on
double-circuit
H-Frame
and
double-circuit
H-Frame
and
lineswere
wereprimarily
primarily
built
on
lines
built
on
double-circuit
H-Frame
and
self-supporting
single-pole
self-supporting
single-pole
double-circuitH-Frame
H-Frame
and
double-circuit
and
self-supporting
single-pole
structures
with
vertical
constructures
withvertical
vertical
conself-supporting
single-pole
self-supporting
single-pole
structures
with
configurations.
Both
lines
use
figurations.
Both
linesuse
use
structureswith
with
vertical
configurations.
Both
lines
structures
vertical
configurations.Both
Bothlines
linesuse
use
figurations.
A
AAT
AA
Shunt Installation
on Energized Lines
ELECTRIC
UTILITY
OPERATIONS
ELECTRIC
ELECTRIC
UTILITY
UTILITY
OPERATIONS
OPERATIONS
1590
kcmil
54/19
ACSR
(Falcon)
conductor
and
were
origi1590
1590
kcmil
kcmil
54/19
54/19
ACSR
ACSR
(Falcon)
(Falcon)
conductor
conductor
and
and
were
were
origioriginally
designed
with
sufficient
clearance
forfor
max
operating
nally
nally
designed
designed
with
with
sufficient
sufficient
clearance
clearance
for
aa max
a max
operating
operating
temperature
ofof
148°C
(300°F).
The
program
began
with
the
temperature
temperature
of
148°C
148°C
(300°F).
(300°F).
The
The
program
program
began
began
with
with
the
the
helicopter
crew
installing
the
mid-span
shunts
with
two
linehelicopter
helicopter
crew
crew
installing
installing
the
the
mid-span
mid-span
shunts
shunts
with
with
two
two
linelinemen
working
offoff
attached
toto
the
helicopter.
On
men
men
working
working
off
aa platform
aplatform
platform
attached
attached
to
the
the
helicopter.
helicopter.
On
On
the
first
day
ofthis
this
project,
the
linemen
installed
2222
mid-span
the
the
first
first
day
day
of
of
this
project,
project,
the
the
linemen
linemen
installed
installed
22
mid-span
mid-span
ClampStar
units
with
typical
average
ofsix
sixsix
minutes
per
locaClampStar
ClampStar
units
units
with
with
aatypical
a typical
average
average
of
of
minutes
minutes
per
per
localocation.
After
the
second
day,
allall
3939
mid-span
splices
were
comtion.
tion.
After
After
the
the
second
second
day,
day,
all
39
mid-span
mid-span
splices
splices
were
were
comcompletely
shunted.
pletely
pletely
shunted.
shunted.
Installing
the
dead-end
shunts,
however,
was
more
Installing
Installing
the
the
dead-end
dead-end
shunts,
shunts,
however,
however,
was
was
aa bit
abitbit
more
more
This
line
now
uprated
toexceed
exceed
specified
emergency
rating
re-reThis
This
line
line
isisnow
is now
uprated
uprated
to
to
exceed
specified
specified
emergency
emergency
rating
rating
reinvolved.
AIR2
installed
these
units
anan
average
rate
ofof
3030
involved.
involved.
AIR2
AIR2
installed
installed
these
these
units
units
atat an
at
average
average
rate
rate
of
30
quirements.
quirements.
quirements.
minutes
each.
ToTo
perform
this
work,
the
helicopter
positioned
minutes
minutes
each.
each.
To
perform
perform
this
this
work,
work,
the
the
helicopter
helicopter
positioned
positioned
liable
and
clean
energy
tocustomers.
customers.
two
linemen
the
structure
towork
work
offoff
ladders
supported
byby liable
liable
and
and
clean
clean
energy
energy
to
to
customers.
two
two
linemen
linemen
atatthe
at
the
structure
structure
to
to
work
off
ladders
ladders
supported
supported
by
With
the
ClampStar
units
installed,
these
connectors
will
the
conductor.
With
With
the
the
ClampStar
ClampStar
units
units
installed,
installed,
these
these
connectors
connectors
will
will
the
the
conductor.
conductor.
not
bebe
subjected
toadditional
additional
temperatures,
which
would
de-deDespite
stringent
project
requirements
and
calendar
liminot
be
subjected
subjected
to
to
additional
temperatures,
temperatures,
which
which
would
would
deDespite
Despite
stringent
stringent
project
project
requirements
requirements
and
and
calendar
calendar
limilimi- not
grade
them.
The
shunts
serve
toto
carry
the
current,
and
any
tations,
AIR2
was
able
toinstall
install
147
dead-end
and
3939
mid-span
grade
them.
them.
The
The
shunts
shunts
serve
serve
to
carry
carry
the
the
current,
current,
and
and
any
any
tations,
tations,
AIR2
AIR2
was
was
able
able
to
to
install
147
147
dead-end
dead-end
and
and
39
mid-span
mid-span grade
remaining
tension
requirements
ofof
the
conductor.
The
line
shunts
inin
just
1919
total
days,
which
was
less
than
third
ofof
the
remaining
tension
tension
requirements
requirements
of
the
the
conductor.
conductor.
The
The
line
line
shunts
shunts
in
just
just
19
total
total
days,
days,
which
which
was
was
less
less
than
than
aathird
a third
of
the
the remaining
will
therefore
bebe
uprated
forfor
higher
current
capacity,
and
originally
allotted
time
frame
forfor
construction.
Ultimately,
the
will
therefore
therefore
be
uprated
uprated
for
higher
higher
current
current
capacity,
capacity,
and
and
originally
originally
allotted
allotted
time
time
frame
frame
for
construction.
construction.
Ultimately,
Ultimately,
the
the will
depending
onon
the
condition
ofthe
the
conductor,
provide
anan
ad-adproficiency
ofof
the
AIR2
crews,
coupled
with
the
ease
ofof
the
depending
on
the
the
condition
condition
of
of
the
conductor,
conductor,
provide
provide
an
adproficiency
proficiency
of
the
the
AIR2
AIR2
crews,
crews,
coupled
coupled
with
with
the
the
ease
ease
of
the
the depending
ditional
3030
to50
5050
years
ofavailable
available
service
life
tothe
the
line.
ClampStar
shunt
installations,
drove
the
project
toto
compleditional
30
to
to
years
years
of
of
available
service
service
life
life
to
to
the
line.
line.
ClampStar
ClampStar
shunt
shunt
installations,
installations,
drove
drove
the
the
project
project
to
complecomple- ditional
tion
well
ahead
ofthe
the
deadline.
tion
tion
well
well
ahead
ahead
of
of
the
deadline.
deadline.
ByBy
installing
ClampStar
shunts,
AIR2’s
helicopter
crews
are
Mark
Camus
([email protected])
vice
president
ofof
By
installing
installing
ClampStar
ClampStar
shunts,
shunts,
AIR2’s
AIR2’s
helicopter
helicopter
crews
crews
are
are Mark
Mark
Camus
Camus
([email protected])
([email protected])
isisvice
is vice
president
president
of
helping
utilities
todeliver
deliver
projects
well
ahead
ofschedule,
schedule,
save
operations
forfor
AIR2,
LLC.
helping
helping
utilities
utilities
to
to
deliver
projects
projects
well
well
ahead
ahead
of
of
schedule,
save
save operations
operations
for
AIR2,
AIR2,
LLC.
LLC.
significant
expenses
relative
toother
other
alternatives
and
avoid
de-designificant
significant
expenses
expenses
relative
relative
to
to
other
alternatives
alternatives
and
and
avoid
avoid
deMentioned
inin
this
article:
Mentioned
Mentioned
in
this
this
article:
article:
energizing
critical
lines.
InIn
addition,
this
work
practice
imenergizing
energizing
critical
critical
lines.
lines.
In
addition,
addition,
this
this
work
work
practice
practice
isisimis
imAIR2
www.air2.com
AIR2
AIR2
| |www.air2.com
| www.air2.com
proving
safety
byby
minimizing
linemen’s
time
inin
anan
energized
proving
proving
safety
safety
by
minimizing
minimizing
linemen’s
linemen’s
time
time
in
an
energized
energized
Classic
Connectors
www.classicconnectors.com
Classic
Classic
Connectors
Connectors
| |www.classicconnectors.com
| www.classicconnectors.com
environment
and
enhancing
efforts
toprovide
provide
affordable,
re-reenvironment
environment
and
and
enhancing
enhancing
efforts
efforts
to
to
provide
affordable,
affordable,
re-
T&D
Infrastructure
Management
T&D
T&D
Infrastructure
Infrastructure
Management
Management
THE
BEST METHOD TO
PERMANENTLY
8080Years
Years
Protecting
Prolonging
the
Life
Utility
Assets
80
YearsofofofProtecting
Protecting&&&Prolonging
Prolongingthe
theLife
LifeofofofUtility
UtilityAssets
Assets
UPRATE & PROTECT
Wood
Pole
Management
Wood
Wood
Pole
Pole
Management
Management
OVERHEAD
CONNECTIONS
Pole
inspection
and
life-extension
•• • Pole
Pole
inspection
inspection
and
and
life-extension
life-extension
Pole
restoration
and
upgrading
This new lighter weight, three piece design consists of•• • Pole
Pole
restoration
restoration
and
and
upgrading
upgrading
a main ClampStar body weighing less than 20 lbs. and•• • Pole
Pole
loading,
make-ready,
and
pole
replacement
design
Pole
loading,
loading,
make-ready,
make-ready,
and
and
pole
pole
replacement
replacement
design
design
two individual 10 lb. Keeper Shoes which allows for an
easy hot stick installation.
Steel
Structure
Assessment
Rehabilitation
Steel
Steel
Structure
Structure
Assessment
Assessment
&&&
Rehabilitation
Rehabilitation
- Installs in less than 10 minutes on energized lines
- Decreases total installation time by 70 - 80%
- Easily Installs over existing connectors
- No mechanical grips, Come-Alongs,
jumper cables or cutters needed
- Installs with a hot stick or barehand
Pole
and
tower
inspection
and
corrosion
mitigation
•• • Pole
Pole
and
and
tower
tower
inspection
inspection
and
and
corrosion
corrosion
mitigation
mitigation
Engineered
repairs
forfor
steel
and
concrete
•• • Engineered
Engineered
repairs
repairs
for
steel
steel
and
and
concrete
concrete
Highly-trained
engineers,
eld
technicians,
and
•• • Highly-trained
Highly-trained
engineers,
engineers,
fifield
field
technicians,
technicians,
and
and
NACE-certifi
eded
corrosion
experts
NACE-certifi
NACE-certifi
ed
corrosion
corrosion
experts
experts
Comprehensive
asset
management
programs
designed
Comprehensive
Comprehensive
asset
asset
management
management
programs
programs
designed
designed
totoimprove
toimprove
improve
system
resiliency,
extend
service
life,
provide
accurate
system
system
system
resiliency,
resiliency,
extend
extend
service
service
life,
life,
provide
provide
accurate
accurate
system
system
data,
and
optimize
your
investment
data,
data,
and
and
optimize
optimize
your
your
investment
investment
CALL 800.269.1462 TODAY
Visit www.ClampStar.com/bro for a free white paper “Automatic Splices - The Inside story”
Classic Connectors USA, LLC
ClassicConnectors.com
Provider
Since
1934
AA Trusted
ATrusted
Trusted
Provider
Provider
Since
Since
1934
1934
382 •
Park
Ave.
East, Mansfield, OH 44905
Safety
Quality
• • Innovation
Innovation
Safety
Safety •• • Quality
Quality
Innovation
[email protected]
716.319.3423
osmoseutilities.com
[email protected]
716.319.3423
716.319.3423•• •osmoseutilities.com
osmoseutilities.com
••www.tdworld.com
•[email protected]
[email protected]
www.tdworld.com
June
2015
www.tdworld.com
|| June
| June
2015
201567
6767
A New Hope
for Aged Lines
Lines
Utilities now have a cost effective means of increasing ampacity
and thermal limits on aging power lines while maintaining
technical, safety, reliability and regulatory requirements.
Installation of ClampStar® shunts, using helicopters and line crews,
to replace traditional splice and dead end materials, can decrease
total project time by 70% to 80%. This method also avoids
expensive environmental preservation measures and temporary
work associated with ground based methods. The utility industry
and third party testing have proven that the results achieved are
technically superior to other options.
Contact your Classic Connectors representative for additional
information.
classicconnectors.com | 800.269.1462