3M Cold Shrink QS-III Splicing Kit Manuale utente

3MTM Cold Shrink QS-III

Splicing Kit 5467A-We

Instructions

IEEE Std. 404

35 kV Class

250 kV BIL

3M™Cold Shrink

QS-III Splicing Kit

5467A-We

78-8141-4631-8-A

Jacketed Concentric Neutral (JCN)

Concentric Neutral (CN)

Connector Dimensional Requirements

Minimum Maximum

inches (mm) inches (mm)

Outside Diameter 0.51" (13,0mm) 1.70" (43,2 mm)

Length

Aluminum (Al/Cu) ------ 6.00" (152 mm)

Length

Copper (Cu) ------ 6.50" (165 mm)

Selection Chart

Kit Number Cable Insulation Conductor

O.D. Range Size Range

5467A-We 1.07" to 1.70" 1/0 AWG - 350 kcmil*

(27,2 mm to 43,2 mm) (60 - 185 mm2)

*Splices (including size transitions) can be made to smaller or larger conductors (but larger

conductors may require special neutral handling), provided both cables are within the Insulation

O.D. Range and the connector meets the dimensional requirements shown below.

CAUTION

Working around energized high-voltage systems may cause serious

injury or death. Installation should be performed by personnel familiar

with good safety practice in handling high-voltage electrical equipment.

De-energize and ground all electrical systems before installing product.

278-8141-4631-8-A

Contents

1.0 Kit Contents ............................................................................................................................................3

2.0 Instructions for Jacketed Concentric Neutral (JCN) and Concentric Neutral (CN) Cables ................4

2.1 Prepare Cables................................................................................................................................5

2.2 Install Splice ..................................................................................................................................7

For JCN to JCN Splices

2.3 Connect Neutral Wires for JCN Splices........................................................................................10

2.4 Install Jacket for JCN Splices........................................................................................................11

For CN to CN Splices

2.5 Connect Neutral Wires for CN Splices ........................................................................................12

2.6 Install Jacket for CN Splices ........................................................................................................13

For CN to JCN Transition Splices

2.7 Connect Neutral Wires for Transition Splices ..............................................................................15

2.8 Install Jacket for Transition Splices ..............................................................................................16

Connector Crimping Information ..................................................................................................17

378-8141-4631-8-A

1.0 Kit Contents:

1.1 Kit Contents are as follows:

a) 3M™ Cold Shrink QS-III Splicing Kit 5467A (1 ea.)

b) Cold Shrink Jacketing Tube (1 ea.)

c) Cold Shrink Adapter Tube (2ea.)

d) Red Compound Tubes (non-silicone grease) (2 ea.)

e) Scotch® Mastic Strip 2230, 6" length (6ea.)

Scotch®

Rubber Mastic Tape 2228 Rolls (2 ea.)

3M™

Cable Cleaning Pad Kit CC-3 (1 ea.)

h) Cable Preparation Template (1 ea.)

i) Neutral Pad (1 ea.)

j) Instruction Booklet (1 ea.)

478-8141-4631-8-A

2.0 Instructions for Splicing Jacketed Concentric Neutral (JCN), Concentric

Neutral (CN) Cables, and JCN to CN Transition Splices

Jacketed Concentric Neutral (JCN)

Concentric Neutral (CN)

Cold Shrink Jacket

Splice Body

Connector

Cable Insulation

Cable Semi-con

Tape Marker

Cable Jacket

Rubber Mastic Seal

Cutaway view (JCN)

578-8141-4631-8-A

2.1 Prepare Cables

2.1.1 Prepare cables according to standard procedures. Refer to template provided or illustration below for

proper dimensions. Additional distance is required on one cable to provide extra neutral wire length

for connecting the neutrals.

Jacketed Concentric Neutral (JCN) Concentric Neutral (CN)

extra neutral

wire length

13" (330 mm)

8 1/2" (216 mm)

Note: Cables must be within the Insulation O.D. Range of the splice kit and the connector must meet

the dimensional requirements shown on the front page.

13" (330 mm)

8 1/2" (216 mm)

4 1/2"

(114 mm)

4 1/2"

(114 mm)

678-8141-4631-8-A

2.1.3 Remove cable insulation for 1/2 connector length plus an allowance *for increases in connector length due

to crimping. Insulation removal length shall not exceed 3 1/4" (83 mm) from conductor end. Do not

install connector now.

*Note: This assumes that the installer has determined the increased length of an aluminum connector

crimped with a specific tool and die. Copper connectors do not require a length change allowance.

2.1.2 JCN: Carefully bend neutral wires back over edge of cable jackets. Press them against cables and

temporarily secure with vinyl tape.

For CN splices with exposed neutral connections:

Carefully bend neutral wires back over binding (wire or tape). Press them against cables and temporarily

secure with vinyl tape.

For CN to JCN transition splices or CN splices with covered neutral connections:

Clean cable semi-con as shown. Place a strip of mastic around cable semi-con next to neutral binder. Fold

neutrals into mastic and place another binding wire on the other side of the mastic. Wrap two additional

strips of mastic over the first one and cover with two half lapped layers of vinyl tape. Fold neutrals over

mastic seal and temporarily secure ends with vinyl tape.

mastic strip

clean cable

semi-con

mastic strip

778-8141-4631-8-A

2.1.4 Clean or cover cable jacket if necessary, for cold shrink parking position. Slide the jacketing tube onto one

cable end. Slide splice body onto opposite cable, loose core end first. For size transitions, park splice on

smaller cable.

*Note: If space is limited, the jacketing tubes and splice body can be put on the cable stacked inside each other.

Normal installation

loose core end

* Stacked for limited space

Aluminum Connector (Al / Cu) Copper Connector (Cu)

Note: Jacketing is not optional. Cold shrink jacketing tube must be installed.

Aluminum (Al/Cu) Connector Growth Chart

Conductor Size Typical growth allowance (per end)

1/0 - 3/0 1/8" (3mm)

4/0 - 350 1/4" (6 mm)

Note: 1) Copper connectors do not require a length change allowance.

2) Maximum aluminum connector crimped length allowed is 6.50" (165 mm).

878-8141-4631-8-A

2.2.2 Apply a tape marker to semi-con insulation shield on

cable which does not contain splice.

Measure 10 1/2" (267 mm) from center of connector.

10 1/2" (267 mm)

2.2 Install Splice

2.2.1 Install connector. See table (on cover) for proper

connector dimensions. (For standard 3M™ connectors,

refer to table at the end of this instruction for crimping

information)

2.2.3 If using cold shrink adapter tube:

Position adapter tube over the connector. Shrink adapter

near center of connector by pulling and unwinding the

loose core end.

2.1.5 For 1/0 through 3/0 AWG connectors, or

connectors with an O.D. between 0.51-0.76"

(13,0–19,3 mm): Slide the cold shrink adapter tube

with the WHITE CORE onto the insulation with the

loose core ribbon end going on first, away from the

cable end.

For 4/0 AWG through 350 kcmil connectors or

connectors with an O.D. between 0.68–1.07"

(17,3–27,2 mm): Slide the cold shrink adapter tube

with the RED CORE onto the insulation with the loose

core ribbon end going on first, away from the cable

end.

978-8141-4631-8-A

2.2.6 Position the splice body over connector area, aligning its end at the center of the tape marker. Slowly start to

remove the splice core by pulling and unwinding the loose end counterclockwise, allowing only 1/4" (6 mm)

of the splice to shrink onto the tape marker. Carefully slide the body off of the tape by pulling and twisting

until the entire tape marker is exposed. Continue removing core to complete the splice body installation.

Note: The splice body ends must overlap onto the semi-conducting layer of each cable by at least 1/2" (12,7 mm).

tape marker

Note: DO NOT push the splice body towards the tape marker, as this may cause the end to roll under.

If the end does roll under, DO NOT use sharp edged tools to pull it out as this could cut and

damage the splice.

2.2.4 Clean cables using standard practice:

a. Do not use solvent or abrasive on cable semi-conductive insulation shield.

b. If abrasive is used on cable insulation, do not reduce diameter below the 1.07" (27,2 mm) minimum

specified for the splice.

2.2.5 Apply red compound on cable insulation, making certain to fill in edge of cable semi-cons.

DO NOT use silicone grease.

Greased areas as notedCompound filled at edge of semi-cons

grease grease

fill edge of

semi-con

10 78-8141-4631-8-A

For JCN to JCN Splices

2.3 Connect Neutral Wires for JCN Splices

2.3.1 Route neutrals straight across the splice body and secure using vinyl tape.

2.3.2 Wrap the neutral pad over one end of the splice and cable semi-con. Secure pad with two wraps of vinyl

tape. Wrap a mastic strip around each cable semi-con next to the neutral wires.

Neutrals straight across splice

Note: If grounding splice, leave sufficient neutral wire length to extend neutral wires through the inline

compression connectors for connection to the ground wire per Wisconsin Electric specifications.

Connect the neutral wires using inline compression connectors. The neutral wires should pass through the

connector, making an overlap crimp. Trim excess neutral wire on both sides for a non-grounded splice or

on the spice body side only for a grounded splice. All connections must be made over the neutral pad.

After all of the neutral wires are connected. Wrap a mastic strip over the end of the cable jacket and the

previously applied mastic on both sides of the splice.

Neutral connection without splice grounding Neutral connection for a grounding splice

2.3.3 For grounded splices, route the grounding wires over the mastic seal and secure with vinyl tape. Wrap

another mastic strip over the grounding wires and mastic seal.

2.3.4 Cover crimped connectors with vinyl tape.

Neutral Pad

Mastic Strip

Neutral wire ends

Mastic

Neutral wire ends Grounding wires

Mastic Seal Mastic

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