3M 7672-S-8 Quick Start Manual Download

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Cold Shrink Silicone Rubber

Termination QT-III

7672-S-8-TS

Instructions

IEEE Std. No. 48-1996

Class 1 Termination

69 kV Class 350 kV BIL

IEC 60840

72,5 kV

Kit Contents:

1 Silicone Rubber Lug Seal Insulator Assembly

1 Hi-K Stress Control Assembly

1 Silicone Rubber Insulator Assembly

1 Silicone Rubber Skirted Insulator Assembly

1 Pre-formed Ground Braid Assembly

3 Constant Force Springs

1 Roll Scotch

Electrical Shielding Tape 24

6 Tubes P55/R Red Compound (Non-Silicone Grease)

1 Roll Scotch

Sealing Mastic 2229, 1" (25 mm) wide

8 Strips Hi-K Mastic (1-6"

22", 7-2"

11")

1 Roll Scotch

Silicone Rubber Tape 70

1 Roll Scotch

Vinyl Electrical Tape Super 88, 1½"

44'

1 6" (150 mm) Hi-K Mastic Pad

1 3M

™

Cable Cleaning Pads CC-3

1 Copper Foil Tape Strip 1181, 15" long

4 Instruction Sheets

Note: Do not use knives to open plastic bags.

Kit Number

Primary Insulation

O.D. Range

Jacket O.D. Range

Conductor Size Range

AWG (mm

)

7672-S-8

1.94"–3.08"

(49.3–75.4 mm)

2.45"–3.35"

(62.2–85.1 mm)

250–1750

(120–850)

Table 1

4APE3HIELDED#ABLE

™

Cold Shrink Silicone Rubber

Skirted Termination Kit QT-III

for Tape Shielded Cable

7672-S-8-TS

78-8126-9537-3-B

CAUTION

Working around energized systems may cause serious injury or

death. Installation should be performed by personnel familiar with

good safety practice in handling electrical equipment. De-energize

and ground all electrical systems before installing product.

Summary of Contents for 7672-S-8

Page 1: ...ubber Tape 70 1 Roll Scotch Vinyl Electrical Tape Super 88 1 44 1 6 150 mm Hi K Mastic Pad 1 3M Cable Cleaning Pads CC 3 1 Copper Foil Tape Strip 1181 15 long 4 Instruction Sheets Note Do not use knives to open plastic bags Kit Number Primary Insulation O D Range Jacket O D Range Conductor Size Range AWG mm2 7672 S 8 1 94 3 08 49 3 75 4 mm 2 45 3 35 62 2 85 1 mm 250 1750 120 850 Table 1 4APE 3HIEL...

Page 2: ...ONE 2UBBER 3KIRTED NSULATOR SSEMBLY 3ILICONE 2UBBER UG 3EAL 4UBE 3ILICONE 2UBBER 4UBULAR NSULATOR 3ILICONE 2UBBER 3KIRTED NSULATOR SSEMBLY IGH 3TRESS ONTROL ASTIC IGH 3TRESS ONTROL 4UBE 3ILICONE 2UBBER 4UBULAR NSULATOR 3ILICONE 2UBBER 3KIRTED NSULATOR SSEMBLY 3ILICONE 2UBBER UG 3EAL 4UBE 3EMI ON NSULATION 3HIELD 3EMI ON NSULATION 3HIELD 3ILICONE 2UBBER 3KIRTED NSULATOR SSEMBLY 3ILICONE 2UBBER 4UBU...

Page 3: ...s within the kit ranges as shown in Table 1 1 2 Prepare cable using dimensions shown in Figure 1 Be sure to allow for depth of terminal lug plus 0 5 13 mm plus crimp growth Note Provide additional exposed conductor to allow for growth of aluminum lugs or connectors during crimping Conductor Size 250 350 400 650 750 1000 1100 2000 Growth Allowance 0 25 6 mm 0 5 13 mm 0 75 19 mm Field Determined Tab...

Page 4: ...bly nearest the cable jacket edge install the 3 constant force springs one around each ground braid loop Cinch tighten the springs after wrapping the final turn Extend the ground braid tails down the cable jacket Figure 3 ONSTANT ORCE 3PRING ABLE ACKET DGE 3OLDER LOCK ROUND RAID SSEMBLY ABLE NSULATION 3EMI CON Figure 3 2 3 Select the roll of 1 25 mm wide Scotch Sealing Mastic 2229 from the kit Cut...

Page 5: ...CK ST ASTIC 3TRIP BENEATH SOLDER BLOCKS MM APPROX Figure 4 2 5 Cut four 1 25 mm lengths of 1 25 mm wide Scotch Sealing Mastic 2229 Remove the release liner and roll each mastic strip into a small roll Figure 5 Press the mastic rolls into place on either side of the ground braid solder blocks Figure 6 ASTIC 3TRIP ASTIC 2OLLED 5P MM Figure 5 3OLDER LOCK ST ASTIC 3TRIP BENEATH SOLDER BLOCKS 2OLLED AS...

Page 6: ... ND ASTIC 3TRIP OVER SOLDER BLOCKS MASTIC ROLLS Figure 7 2 7 Wrap two half lapped layers of highly tensioned Scotch Vinyl Electrical Tape Super 88 over the mastic seal and constant force springs Cover all exposed mastic constant force springs and tape shield overlapping 0 25 6 mm onto the exposed cable semi con Figure 8 Note Take care not to cover the exposed semi con A minimum of 2 5 75 mm of sem...

Page 7: ... kcmil 4 0 Clean Cable Insulation and Lug Barrel Using Standard Practice 4 1 Use only aluminum oxide abrasive to finish and polish insulation surface 4 2 Use abrasive only on cable insulation Do not use on semi con 4 3 When using abrasive do not reduce the cable insulation diameter below that allowed by the kit 4 4 Wipe the cable insulation clean with an approved solvent Do not allow the solvent t...

Page 8: ...pad edge by gently pressing along the edge with your finger Figure 9 3EMI ON 4APER DGE ABLE NSULATION ABLE NSULATION I ASTIC 0AD I ASTIC 0AD AYERS MM MM Figure 9 5 2 Wrap two half lapped layers of highly tensioned Scotch Vinyl Electrical Tape Super 88 over the hi K mastic pad leaving approximately 0 125 3 mm of mastic exposed at each end Taper the exposed edges of the hi K mastic onto the cable by...

Page 9: ...rol Assembly not the core with the end of the tape shield and remove the core by pulling the loose end while unwinding counter clockwise Clean exposed cable insulation after installation Figure 12 5NWIND COUNTER CLOCKWISE ABLE ACKET 3TRESS ONTROL SSEMBLY LIGN WITH END OF LONGITUDINALLY CORRUGATED SHIELD Figure 12 5 5 Select one 2 x 11 50 mm x 280 mm hi K mastic strip from the kit Remove the liners...

Page 10: ...YL 4APE MM MM 4APER DGE OF I ASTIC 4APER DGE OF I ASTIC 3TRESS ONTROL SSEMBLY 4UBE ABLE NSULATION Figure 14 5 7 Select one or more of the 2 x 11 50 mm x 280 mm hi K mastic strips from the kit Remove the liner and fold the mastic strip twice lengthwise to form a 0 5 12 mm wide strip Figure 15 I ASTIC ASTIC OLDED VER 4WICE 2EMOVE INER Figure 15 5 8 Wrap the mastic strip around the exposed conductor ...

Page 11: ... Using moderate tension wrap 2 half lapped layers of tape over the hi K mastic leaving approximately 0 125 3 mm of mastic exposed at each end Taper the exposed edges of the hi K mastic onto the cable by gently pressing along the edge with your finger Figure 18 3COTCH 3ILICONE 2UBBER 4APE 4APER DGE OF I ASTIC 4APER DGE OF I ASTIC MM MM 3TRESS ONTROL SSEMBLY 4UBE ABLE NSULATION Figure 18 5 11 Apply ...

Page 12: ...ng counter clockwise Figure 20 3TRESS ONTROL SSEMBLY 4UBE 3ILICONE 2UBBER UG 3EAL NSULATOR UG MM 5NWIND COUNTER CLOCKWISE Figure 20 5 13 Apply 3 tubes of P55 R Red Compound to the exposed cable insulation and hi K stress control assembly tube Fill the bottom edge of the silicone rubber lug seal the the P55 R Red Compound Do not apply P55 R Red Compound to the surface of the lug seal insulator tube...

Page 13: ...eaner and wipe dry 5 16 Select the Skirted Insulator Assembly from the kit Carefully remove the red shipping core by pulling the loose end while unwinding counter clockwise and discard Slide the Skirted Insulator Assembly over the lug and cable with the loose core end toward the cable jacket Align the Skirted Insulator Assembly Tube not the core with the leading edge of the previously installed Si...

Page 14: ...e free from defects in material and manufacture for a period of one 1 year from the time of purchase 3M MAKES NO OTHER WARRANTIES INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE If this product is defective within the warranty period stated above your exclusive remedy shall be at 3M s option to replace or repair the 3M product or refund the ...

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