Thomas & Betts K656DR Installation Manual

IS---K656/676DR (1)

IS---1372

August 2013

Page 1 of 3

Installation/Operating Instructions

K656DR & K676DR

Deadbreak Insulated Cap with Test Point

CONTENTS: Insulated Cap, Lubricant (Do Not Substitute), Stud (if applicable), Installation Instructions.

The K656DR/K676DR is designed for insulating, shielding and watersealing any ELASTIMOLDR 15kV class (8.3kV
phase--to--ground) and 28kV class (16.2 kV phase--to--ground) 600 amp deadbreak bushing interface.

DANGER

All apparatus must be de--energized during installation
or removal of part(s). For loadbreak products follow
operating instructions. All deadbreak connectors must
be de--energized before operating. All 200A deadbreak
connectors must be mechanically secured with bails
when connected.

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 in the work
area.

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

FOR MORE INFORMATION ON PARTS, INSTALLATION RATINGS AND COMPATIBILITY, CALL THE NEAREST ELASTIMOLDR 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
are not intended as a substitute for 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.

Limited Warranty:

1. T&B warrants that its products will be free from defects in materials or workmanship for a period of two (2) years, except for tools which
are warranted for 90 days. Fisher PierceRproducts and ElastimoldRReclosers are warranted for three years; and Joslynt VBT and VBU
capacitor switches are warranted for four years or 40,000 operations whichever occurs first. Upon prompt notification of a warranted
defect, T&B will, at its option, repair or replace the defective product.

2. In no event shall T&B be liable for any consequential, indirect or special damages, nor will T&B be liable for transportation, labor, or other
charges arising out of the removal or reinstallation of its products. Liability for breach of warranty is limited to the cost of repair or
replacement of the warranted product only.

3. Misuse, misapplication or modification of T&B products immediately voids all warranties.

THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES AND
REMEDIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, WHICH ARE SPECIFICALLY DISCLAIMED.

IMPORTANT

1. Check contents of package to ensure they are complete

and undamaged.

2. Check all components to ensure 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.

Installing The Insulated Cap

STEP 1

Insert a length of No. 14 AWG ( 2.5mm2) copper wire (or
equivalent) through the grounding eye of the insulated cap.
Make a small loop and twist tight, taking care not to damage the
grounding eye. Connect free end of grounding wire to the
system ground using a connector specified by the utility. Length
of grounding wire should be sufficient for the distance from the
grounding point to the grounding eye of the insulated cap when
installed.
If the bushing is not equipped with a stud, hand assemble the
stud supplied into the insulated cap. If the bushing is equipped
with a stud, discard the stud supplied.

No. 14 Copper
Grounding Wire

To Ground

Stud
(Where Applicable)

IS---1372
IS---K656/676DR (1)

August 2013
Printed in U.S.A.

8155 T&B Boulevard, Memphis, Tennessee 38125
(800) 888--0211 Fax: [phone]

IS---1372

August 2013
Page 2 of 3

STEP 2

In new installations, where the bushing is known to be
de--energized, thoroughly wipe the bushing interface and the
insulated cap interface clean of all contaminants. Lubricate
above surfaces with the supplied lubricant or Elastimold
approved lubricant. On circuits previously energized, clean and
lubricate only the interface of the insulated cap.

Clean and Lubricate

Bushing Interface

Apparatus

STEP 3

During installation of the insulated cap, the grounding wire will be wrapped around the body of the insulated cap. A second
hotstick will be required to control the tension and position of the grounding wire. The wire shouldbe wrapped loosely about the
center of the insulated cap.

Attach the first hotstick tool to the insulated cap pulling ring and push receptacle onto bushing interface as far as it will go. With
the second hotstick, engage grounding wire and establish slight tension (see illustration). With first hotstick, while pushing
against the bushing interface, twist clockwise until the threads between bushing and insulated cap engage; continue turning
without pushing until resistance is felt. DO NOT OVERTIGHTEN.

Hotstick

Pulling Ring

Bushing Interface

Apparatus

Push

2nd Hotstick

Rotate

Insulation

Conductive Insert

Stud

Conductive Jacket

Bushing Interface

Apparatus

Removing The Insulated Cap

WARNING: DO NOT DISCONNECT WHILE ENERGIZED.

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August 2013

Page 3 of 3

STEP 1

To determine if the system is energized, remove the voltage
detection point cap with a hotstick. To remove cap, PEEL
OFF AT AN ANGLE rather than pulling directly inline with the
voltage detection assembly. Use an appropriate high
impedance testing device to check the voltage detection
point for indication of circuit condition. (See Voltage Test
below) Replace the voltage detection point cap.

STEP 2

After the circuit is confirmed to be de--energized, securely
fasten a hotstick to the pulling ring. Without exerting any
pullingforce, rotate thereceptacle counter--clockwise eight
or nine turns. With a second hotstick tool, control the
unwound ground wire so that the wire will not interfere with
adjacent devices or entangle itself with the first hot stick tool.
Then exert pulling force to remove the insulated cap from the
bushing interface.

Hotstick

Remove Cap with Hotstick
Replace Cap After Testing

Apparatus

Hotstick

Pull

2nd Hotstick

Bushing Interface

Apparatus

VOLTAGE TEST

The ELASTIMOLDR deadbreak 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 with a hotstick. To remove 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. It requires the use of specially designed instruments. 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 lubricant and replace it on
the test point.

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