3M 4604GW Manuel utilisateur

Instructions

January 1999

34-7046-2402-1-A

Reenterable Gel Wrap PST

Dome Closure

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Contents:

1.0 General ...........................................................................................................................................................4

2.0 Kit Contents....................................................................................................................................................4

3.0 PST Closure Capacity ....................................................................................................................................5

4.0 Cable Preparation ........................................................................................................................................... 5

5.0 Bonding and Grounding.................................................................................................................................6

6.0 Splicing...........................................................................................................................................................6

7.0 Sealing Collar Installation - 4604GW and 4606GW.....................................................................................7

8.0 Gel Wrap Installation - 4604GW and 4606GW ............................................................................................8

9.0 Closure Installation - 4604GW and 4606GW ...............................................................................................9

10.0 Sealing Collar Installation - 4608GW and 4608XL-GW ..............................................................................11

11.0 Gel Wrap Installation - 4608GW and 4608XL-GW......................................................................................12

12.0 Closure Installation - 4608GW and 4608XL-GW.........................................................................................13

13.0 Closure Reentry..............................................................................................................................................14

14.0 Retrofit on Gel Wrap PST Dome Closure .....................................................................................................15

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2.1 Additional Materials Required

• Vinyl Tape

• Shield Bond Connectors

• Splice Connectors

• Elastic Vinyl Film

• Grounding Wires

Note: All components must be installed per instructions to be effective.

4608GW and 4608XL-GW Closures

Closure Assembly (A)

Dome

Base

O-ring

Latch

Gel End Seal Core (B)

Gel Sealant Strip (C)

Gel Wrap (D)

PST (E)

Sheath Scuff (F)

4604GW and 4606GW Closures

Closure Assembly (A)

Dome

Base

O-ring

Latch

Gel End Seal Core (B)

Gel Sealing Strip (C)

Gel Wrap (D)

PST (E)

Sheath Scuff (F)

1.0 General

The 3M™Reenterable Gel Wrap PST Dome Closure is used for new and existing above-ground splices contained

within a pedestal or below-ground splices within a hand-hole.

2.0 Kit Contents

(C)

(F)

(C)

(D)

(E)

(A)

(B)

(E)

(F)

(A) (D)

(B)

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(W x D)

(H)

Closure

Outside Dim. 22.5"

(572 mm)

Closure

Height

Approx. Bundle

Diameter

Minimum Reliable

CAD Pedestal

Main

Cables

Terminal

Cables

Branch

Cables

Drop

Cables

*Approx.

Splice Range

2.5"

(64 mm) 3.9"

(99 mm)

0.4" - 0.6"

(10 - 15 mm) 0.4" - 0.6"

(10 - 15 mm)

0.7" -1.0"

(18 - 25 mm)

100 pr. - MS2

50 pr. - UR 300 pr. - MS2

100 pr. - UR

4604GW 4606GW 4608GW 4608XL-GW

3.8" x 2.8"

(97 x 71 mm) 5.6" x 3.9"

(142 x 99 mm)

0.35" max

(9 mm) max

2 max

0.35" max

(9 mm) max

2 max

0.35" max

(9 mm) max

2 max

0.35" max

(9 mm) max

2 max

7.0" x 5.4"

(178 x 137 mm) 7.0" x 5.4"

(178 x 137 mm)

22.5"

(572 mm) 23.5"

(597 mm) 33.5"

(851 mm)

5.3"

(135 mm) 5.3"

(135 mm)

46 8 12/70

0.5" - 1.1"

(13 - 28 mm) 0.9" - 1.6"

(23 - 41mm) 1.4" - 2.5"

(36 - 64 mm) 1.4" - 2.5"

(36 - 64 mm)

0.4" - 0.8"

(10 - 20 mm) 0.4" - 0.8"

(10 - 20 mm)

0.9" - 1.3"

(23 - 33 mm) 0.9" - 1.3"

(23 - 33 mm)

600 pr. - MS2

300 pr. - UR 900 pr. - MS2

400 pr. - UR

(151 mm)

23"

(584 mm)

Scuff Both

Cables

Remove Sheath

Preparation A Preparation B

(151 mm)

15"

(381 mm)

Scuff Both

Cables

Remove Sheath

W D

3.0 PST Closure Capacity

*Note: Based on two bank 4000-DWP and ScotchlokTM connectors installed per 3M practices.

Examples: 100 pair means 100 pair In and 100 pair Out or 100 pair straight splice.

3.1 Overall closure dimensions (See PST Closure Capacity Chart).

4.1 Remove sheath and scuff both

cables as noted for the following

closure sizes.

Preparation A: 4604GW, 4606GW, 4608GW

Preparation B: 4608XL-GW

4.0 Cable Preparation

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5.2 Install external ground wires to bonding connector studs and

run along the cables.

Note: For external grounding of sealed copper plant, a solid

copper wire bond must be used. For internal bonding/

grounding, a stranded, braided or any combination of

bonding/grounding wire may be utilized.

5.0 Bonding and Grounding

5.1 Install bonding connectors per system practice. Bonds should

be placed so that the studs of the connectors are facing forward.

5.3 Insulate bonding connectors by wrapping with vinyl tape.

6.0 Splicing

6.1 Splice per company practice.

6.2 Splice in tail of a terminal block when required.

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7.0 Sealing Collar Installation – 4604GW and 4606GW

7.1 Cut and remove packaging from gel end seal core.

7.2 Slit gel end seal ports along the length of plugs for desired number of

cables to be installed and remove plugs.

Use plugs 1 and 2 for main cables and plug 3 for branch or terminal

cable.

Note: A fourth plug is available for the 4606GW closure.

7.3 Install gel end seal core 2" (51 mm) below the sheath opening. Pull lips

of seal, created by cutting and removing plug, around cables. Remove

packaging from gel sealing strip. Wrap the gel sealing strip around the

core and ground wires with a slight tension.

Note: Place ground wires and drop wires between layers in gel sealing

strip. Ensure wires have one layer of gel between them and cable

sheath. There should be at least 0.25" (6 mm) between wires.

7.4 Squeeze gel end seal to insure a seal between layers and cables.

Note: Closure assembly must rest on end seal when placed over the splice.

Move end seal upward, if necessary.

lips

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8.3 Trim off excess gel wrap if needed. Make sure that the top of the

bundle is fully covered prior to trimming gel wrap.

8.4 Starting 2" (51 mm) below the gel end seal, begin tightly wrapping

the elastic vinyl film. Continue tightly wrapping the elastic vinyl

film over the length of the gel wrap and bundle. Make certain that

the top of the gel wrap is tightly covered by the elastic vinyl film.

Wrap three highly stretched layers of elastic vinyl film. Secure the

end of the elastic vinyl film with vinyl tape.

7.5 Pull cables together with tape or cable ties to ensure proper fit to

closure.

8.0 Gel Wrap Installation – 4604GW and 4606GW

8.1 Starting at bonding connectors, begin wrapping elastic vinyl film.

Continue wrapping the elastic vinyl film along the bundle until the

bundle is fully covered.

8.2 To install gel wrap, first remove the protective cover from one side.

Place the gel wrap behind the cables (the unprotected side should

face the bundle); position it so that the lower edge is near the bottom

of the end seal. Anywhere between the bottom and middle of the

end seal is acceptable. At this time remove the remaining protective

cover from gel wrap.

Wrap the gel wrap around the end seal so that the ends overlap and

press them firmly together. Continue wrapping the gel wrap along

the bundle, assuring that the ends overlap, until the bundle is fully

sealed.

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9.0 Closure Installation – 4604GW and 4606GW

9.1 Remove cardboard insert and pull core tail through the center of PST

until core is even with PST edge.

9.2 Slide PST over closure so that PST tail is pointed toward the top of

the closure. The core tail MUST be unwound upward. Position PST

bottom edge between the bottom of the wire form latch and the base's

top rib.

Note: Optional method is to put closure over the splice bundle and

position PST 2" (51 mm) below the gel end seal. While holding

the PST and closure with one hand, unwind the core by pulling

on the core tail with the other hand in an upward and outward

COUNTERCLOCKWISE direction.

9.3 While holding the PST and closure with one hand, unwind the core by

pulling on the core tail with the other hand in an upward and outward

COUNTERCLOCKWISE direction until approximately 0.5"(13 mm)

of the PST is shrunk onto the closure.

9.4 Push PST towards bottom of closure. This will invert the PST.

Note: Do not force the PST to slide on the closure during inversion.

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9.5 Pull the core material from the PST until the PST is even with

the bottom of the closure.

9.6 Place assembly over splice and onto gel end seal. Insure the

wireform latch and the 3M logo are facing forward.

9.7 Continuously push PST downward while pulling the rest of the core

material.

9.8 When the PST is in place, remove the core wrap from around the

cable.

9.9 For pedestal closure applications, secure the closure to pedestal,

mount terminal block and connect ground wires according to system

practice.

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