Thomas & Betts 373J3 Installation Manual

R

IS---373 J2, J3, J4

IS---0078

October 2000

Page 1 of 3

Installation Instructions

373 J2, J3, J4

Two--, Three--, and Four--Point Loadbreak Junctions

Contents: Loadbreak Junction assembled with back plate, Two mounting brackets with hardware, Lubricant and

Installation Instructions.

The two--, three--, and four--point loadbreak junctions are designed for universal mounting on both flat and curved surfaces.
The mounting angle of the junction is adjustable from 0_ thru 90_ above or below the horizontal in 15_ increments.

The two--- , three--- , and four---way loadbreak junctions are used for sectionalizing, looping, tapping or for apparatus change out.

These junctions provide interconnected apparatus interfaces for Elastimold 35kV class (21.1kV phase--to--ground and 36.6kV
phase--to--phase) loadbreak connectors. A black band provides vents for improved switching performance. This product is
identified by a round white marker(s) attached to the bracket.

DANGER

All apparatus must be de--energized during installation
or removal of part(s). For loadbreak products follow
operating instructions.

All apparatus must be installed and operated in
accordance with individual user, local, and national
work rules. These instructions do not attempt to
provide for every possible contingency.

Do not touch or move energized products by hand.

Excess distortion of the assembled product may result
in its failure.

Contact with solvents, transformer oil, motor oil and
similar substances will degrade jacket conductivity
and insulation level if not immediately wiped off.

FOR MORE INFORMATION ON PARTS, INSTALLATION RATINGS AND COMPATIBILITY, CALL THE NEAREST ELASTIMOLD OFFICE.

Inspect parts for damage, rating and compatibility with
mating parts.

This product should be installed only by competent
personnel trained in good safety practices involving
high voltage electrical equipment. These instructions
arenot intended as a substitutefor adequate training or
experience in such safety practices.

Failure to follow these instructions will result in
damage to the product and serious or fatal injury.

If this product is supplied with a protective shipping
cover(s), remove this shipping cover(s) and replace
with the appropriate HV insulated cap(s) or
connector(s) before submerging or energizing the
circuit.

IMPORTANT

1. Check contents of package to insure they are complete
and undamaged.

2. Check all components to insure proper fit with cable
and/or mating products.

3. Read entire installation instructions before starting.

4. Have all required tools at hand and maintain cleanliness
throughout the procedure.

IS---0078
IS---373 J2, J3, J4

October 2000
Printed in the U.S.A.

Esna Park Drive, Hackettstown, New Jersey 07840 USA
(908)852-- 1122 FAX: [phone]

A Unit of Thomas & Betts Corporation

Round White

Marker

Mounting Angle

Horizontal

Black Seating Indicator

and Vent Ring

Back Plate

Universal Mounting

Bracket

IS---0078

October 2000

Page 2 of 3

STEP 1

Loosely attach universal mounting brackets to the junction back plate and place assembly against the wall. Adjust brackets for
proper alignment and mark their location on the wall.

Round Surface Flat Surface

PEP White Markers

STEP 2

Detach universal mounting brackets from junction back
plate. Mount brackets on wall according to marks made in
Step 1.

One or both of the mounting brackets can be inverted to
change the distance required between bolt centers. The
mounting bracket slot length provides the following
dimensional ranges between bolt centers.

A

B

C

Part No.

373J2

373J3

373J4

PEP White Markers

Mounting Di mensions (Inches)Junction

AB C

13 !/2 to 16 &/8

34,3cm to 42,9cm

17 !/2 to 20 &/8

45,5cm to 53,0cm

21 !/2 to 24 &/8

54,6cm to 63,2cm

9

!/2 to13 !/8

24,1cm to 33.3cm

!/2 to 17 !/8

13

34,3cm to 43.5cm

17

!/2 to 21 !/8

44,5cm to 53.7cm

5

!/4 to 9 !/4

13,3cm to 23,5cm

!/4 to 13 !/4

9

23,5cm to 33,7cm

13

!/4 to 17 !/4

33,7cm to 43,8cm

Bolt Slots (Bolts supplied
by user to fit 17/32”
(13mm) Diameter Holes.)

STEP 3

With universal mounting brackets secure, fasten back plate (with junction attached) to mounting brackets, making sure parking
stands are in upright position.

Up

Vault Wall

45/8”

(11.8cm)

Grounding Lug

Clearance Required for use with
373FT (Each Side)

IS---0078

October 2000
Page 3 of 3

STEP 4

Adjust mounting angle to desired position.

STEP 5

Tighten all bolts securely to assure no movement during operation.

STEP 6

Ground back plate. A grounding lug is provided for this purpose. It accommodates wire sizes of No. 10 Solid to No. 1 Stranded.

STEP 7

Thoroughly wipe the bushing interface clean of any contaminants and lubricate with the supplied lubricant. Install the mating
products to the bushing insert following the instructions supplied with the mating products.

Clean Bushing Interface/Elbow Connector

Interface and Lubricate Thoroughly

Insulated Cap or Elbow

375LR

OR

376LR

WARNING: IF ALL OPERATING INTERFACES ARE NOT UTILIZED, AN ELASTIMOLD 375DR INSULATED CAP MUST

BE INSTALLED ON THE UNUSED INTERFACE OR INTERFACES BEFORE ENERGIZATION.
DO NOT USE the protective shipping covers for this function as they are not insulated and are only intended to keep the

operating interface surfaces clean during handling and installation.

VOLTAGE TEST

The ELASTIMOLD loadbreak elbow connector is equipped with an integral capacitance test point that can be used to
establish whether or not the circuit is energized. When using the test point, complete the following steps:

1. Remove test point cap w ith a hotstick. When removing cap, PEEL OFF AT AN ANGLE rather than pulling directly in line

with the test point assembly.

2.

WARNING: THE VOLTAGE TEST POINT IS A CAPACITANCE DEVICE, IT IS NOT DIRECTLY CONNECTED TO THE

CONDUCTOR. Do not use conventional voltage measuring equipment. Follow the manufacturer’s directions for the
meter that is used. Test with a suitable sensing device, made for use with separable connectors manufactured with
capacitive test points, to determine if cable is energized. Contamination, moisture, dirt, etc. around the test point or use
of the wrong measuring equipment can provide a false “no voltage” indication on an energized elbow. To prevent
serious or fatal injury treat the elbow as energized until the “no voltage” test point indication is confirmed by other means.

3. After voltage detection has been made, clean and lubricate the inside surface of the cap with silicone grease and

replace it on the test point.

Esna Park Drive, Hackettstown, New Jersey 07840 USA
(908)852-- 1122 FAX: [phone]

A Unit of Thomas & Betts Corporation