Página 148 - abchance

Versión de HTML Básico

Jumpers & Load Pi ckup Tool s – 2300
Page 2312
September 2012
Phone: 573-682-5521 Email: hpsliterature@hubbell.com Web: hubbellpowersystems.com
• After closing tool blade,
the permanent tap can be
• The load can then be
dropped or reconnected by operating blade tool
• It should never be closed into a fault or opened during
a fault
*For application on single-phase-to-neutral or three-phase solidly-grounded wye-connected circuits where recovery
voltage does not exceed the max. design voltage of the device.
Specifications (both models)
Max. loadbreak current:       300 amps
Max. momentary rating: 
12,000 asym amps
This is a pass-through fault-current rating only. The
tool should never be opened or closed when the current
exceeds the maximum continuous load current of 300
Main line range (both models)
Minimum:   #6 solid copper (0.162" dia.)
Maximum:  1033 kcmil ACSR (1.25" dia.)
Tap stud:   
" diameter
Temporary Load Disconnect Tools
Both models include protective carrying case and
illustrated operating and maintenance instructions.
Features & Applications
• Available in two sizes
• Provides a temporary means of connecting and
disconnecting equipment or circuits under load
• Design does not have a fuse and does not provide
protection for fault or overcurrent conditions
• Insulated bushing and hot parts are from Chance Type
C-Polymer cutouts, including tubular-copper disconnect
• Arc-chute-type interrupter gives tool excellent
loadbreak capability
• To interrupt load currents, device employs a stainless-
steel auxiliary blade within Delrin
arc chute
• Tool simply clamps onto primary conductor with a
Grip-All clampstick. Bronze stud at lower end accepts
clamp on temporary tap jumper
Installation & Removal
• To install the tool, first remove its main blade
• Next, secure both clamps of suitable temporary jumper
onto tap stud of tool’s lower hinge
• Use a Grip-All clampstick to install tool onto main line
• Use clampstick to secure one of the jumper clamps
onto line with load to be picked up
• Use disconnect stick to place blade in lower hinge of
• Use disconnect stick in operating ring to close blade
according to safe work procedures
• Take care when removing disconnect stick to avoid
opening blade
• The equipment or circuit is now energized through the
• Before removing tool, first make up a permanent
connection so there are two energizing paths
• Use a disconnect stick in the operating ring to open
the blade according to safe work procedures and to
remove blade from lower hinge of the tool
• Use a clampstick to take jumper clamp from conductor
and secure it on tool stud
• Then use the clampstick to remove the tool from the
main line conductor
• Self-contained loadbreak device operates by simple
disconnect stick
• No special or portable tools are required to operate
• To break current, insert a disconnect stick into
operating ring and rapidly open device
• When opening, spring-loaded auxiliary blade snaps
out through the arc chute to elongate, cool and
extinguish the confined arc
• Loadbreaking operation is independent of the
disconnect stick speed
• To provide a clearly visible break, the disconnect blade
hangs in approximately a vertical position
• Unfused or unswitched loads can be disconnected by
first installing this tool and a temporary bypass jumper
in parallel with permanent tap connection
Temporary Load Disconnect Tools
8.3/15kV & 15/27kV applications*
Catalog No.
Disconnect Blade Arc-Chute Assy.
*8.3/15kV Temporary Load Disconnect Tool
*15/27kV Temporary Load Disconnect Tool