Type No.:MAG-15kV loadbreak junctions THJ
15 kV LOADBREAK JUNCTIONS
Junctions are used to sectionalize cables or as feed-thrus for
making lateral taps. They are available in two,
three and four tap units and, when connected with loadbreak
elbows,
Each tap works independently of the others contained on the same
unit. Adjacent taps are providing improved ease of operation.
Junctions with the corrosion-resistant stainless steel mounting
bracket allow back plate mounting. This bracket can also be
adjusted for horizontal mounting to a flat surface. Junctions can
alsobe ordered with only U-straps for horizontal mounting.
Feed-thrus are equipped with a bracket for mounting on the
apparatus stand-off brackets.
JUNCTION DESCRIPTION
SELECTION AND ORDERING
THJ-15/200 JUNCTIONS
200 Amp 25 Kv Loadbreak Products
25kV underground connectors provide utilities with products
having high reliability and low maintenance.
These connectors provide:
Piston-operated fault-close action
Standard elbow and bushing insert loadbreak principle
Small size for ease of hot-stick handling
Field replaceable elbow and probe
Molded shields
Peroxide-cured EPDM compounds
separable connector bushing inserts and elbows are
designed for use with single-conductor, concentric neutral
power cable having extruded insulation shielding.
With shield adapter products, the elbow can be used with
cables having a metallic tape shield, wire shield, or lead
sheath with tape or extruded insulation shielding.
All insulating and conducting rubber components are made
of a special formulation of an EPDM elastomer using a
peroxide curing process. The material and curing process
provides superior elastomeric stress relaxation characteristics
under high ambient temperatures and contributes to reliable,
long-time operation in either above-ground or subsurface
installations.
Elbow connector/bushing insert combinations are suitable for
energized loadmake/loadbreak operations by a qualified lin
eman using a shotgun-type hot stick.
All elbow/bushing insert combinations are designed for use
with subsurface or pad-mounted installations.
25 kV LOADBREAK PRODUCTS
RATINGS & SPECIFICATIONS
GENERAL INFORMATION
25 kV loadbreak products are designed for operation on and
connection to 25 kV class,
125 kV BIL systems where the voltage ratings listed on this
page are not exceeded.
RATINGS
Max. Continuous Voltage............. phase-to-ground:15.2 kV
phase-to-phase:26.3 kV
Continuous Current......................200 amp rms
SHORT-TIME CURRENT RATINGS
0.17-Second Duration..................10,000 amps rms
3.00-Second Duration..................3500 amps rms
INSULATION WITHSTAND VOLTAGES
Basic Impulse Level.....................125 kV crest
(1.2x50 microsec. wave)
60 Hertz (one minute)...................40 kV rms
Dc (15 minutes)............................78 kV
Corona Extinction Voltage............19 kV rms
SWITCHING
Phase and 3-Phase Curcuits, 10 loadmake/loadbreak 15.2 kV
phase-to-ground, operations at 200 amps 26.3 kV maximum。
Where To Use
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