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Grounding Equipment – 3000
Phone: 573-682-5521 Email: hpsliterature@hubbell.com Web: hubbellpowersystems.com
Page 3013
July 2012
Features & Applications
• Flexible cover fits only C6002102 or T6002364 ball-studs
• Made with same material as Chance line hose
• Nonconductive cover may help prevent flashover on
ball studs installed in enclosed switchgear, switchyards
or substations
• Cover is not intended for personnel protection and
should not be considered as insulative cover-up
equipment
• Resilient ozone/corona-resistant thermo-plastic
elastomer does not absorb water
• Special formulation resists aging/checking and retains
high-visibility orange color
Grounding Stud Cover  
– fits onto 1" ball-studs of Apparatus Grounding Clamps above
Long stud shank accepts
most types of grounding
clamps
Socket clamps provide
multi-angle attachment of
grounds
*Long Ball Stud T6002364  3" nominal shank length
Weight, each:
3
4
lb./0.34 kg.
Clamp C6002300 with
pressure terminal
______
for plain-plug ferrule
on #2 to 4/0 ground-
ing cable
Clamp C6002100
Drilled for
5
8
-11 UNC
threaded ferrule
or
Clamp C6002101
Tapped for
5
8
-11 UNC
threaded ferrule
______
for threaded stud ferrule
on #2 to 4/0
grounding cable
*Standard
Ball Stud C6002102
Weight, each:
1
2
lb. / 0.23 kg.
*Ball-studs do not interchange with system on page 3014.
• For restricted-space applications and as a truck-
grounding system, this compact design delivers a high-
current rating usually associated with only large clamps
• Applies to a wide range of switching equipment,
including:
o Industrial metalclad gear
o Substations – indoors and out
o Distribution – overhead and underground
• For trucks, a *ball stud permanently mounts on each
body
• For three-phase livefront set, see page 3015
• Two clamp styles and three ball-stud lengths adapt to
many applications
• Clamp bodies, eyescrews and *ball-studs are bronze
alloy
• Tin-plated ball-studs have nominal 1"-diameter ball
and stud to fit NEMA terminal pads
• Lockwasher and nut are silicone bronze
• ASTM Designation of Type I, Class A, Grade 5 for any of
these clamps is met if associated grounding-cable sets
are fitted with 5⁄8" copper ferrules as on page 3019
Fault Current Ratings
43,000 Amps — 15 cycles
30,000 Amps — 30 cycles
Recommended Installing Torques:
Eyescrew
250 inch-pounds
*Ball Stud
300 inch-pounds
2
1
8
"
(
1
2
-13UNC)
4
1
4
"
1
13
16
"
7"
2
3
4
"
(
1
2
-13UNC)
3
15
16
"
Clamp T6002320
Tapped for
5
8
-11 UNC
threaded ferrule
______
for threaded stud ferrule
on #2 to 4/0
grounding cable
Weight, each clamp on this page: 1 lb. / 0.45 kg.
5
8
" dia. shank
• Snap-fit keeps cover
in place
• 5⁄8"-I.D. loop at top
permits hot-line
tools to “pop” it on
and off
• Chance silicone
lubricant C4002320
or C4170287 may
ease installation
and removal
3.3"
      1"
 internal threads (
1
2
-13UNC)
5
8
" dia. shank
Ball-and-socket design for multiple uses
Apparatus Grounding Clamps
*Female-Thread
Ball Stud T6002867
5
8
" dia. shank
Weight, each:
1
2
lb./0.23 kg.
1
1
2
"
Catalog No.
Description
Weight
C4060416 Grounding Stud Cover 1 oz. (28 g.)