bbit/bptm 5-35kv class bbit/bptm 5-35kv class bus ... · bptm-75/30-a/u 60x10 to 80x10 2x40x10 to...

cometElectrical Metals & Components

Alcomet Limited. Unit 5, Gibbons Industrial Park, Dudley Road, Kingswinford, West Midlands, DY6 8XF UK

Tel: 01384 404488 Fax: 01384 404477 Email: [email protected] www.alcomet.net

Registered in England: 3497874 Vat Registration: 704826244Registered

Supplier ID: 26848

PII-51076, Rev ADDCR C27730 PCN 834147-000Effective Date: January 16, 1996

BBIT/BPTM5-35kV Class

High Voltage, Heat-shrinkableBus Insulation Tubing

Product Installation Instructions

Raychem CorporationElectrical Products Division220 Lake DriveNewark, DE 19702

Return to BBIT/BPTM

PII-51076, Rev ADDCR C27730 PCN 834147-000Effective Date: January 16, 1996

BBIT/BPTM5-35kV Class

High Voltage, Heat-shrinkableBus Insulation Tubing

Product Installation Instructions

Raychem CorporationElectrical Products Division220 Lake DriveNewark, DE 19702

Return to BBIT/BPTM

General Instructions

PII-51076, Rev ADDCR C27730

PCN 834147-000Effective Date: January 16, 1996

2

To determine if a tube has completelyrecovered, look for the following,especially on the back and underside ofthe tube:

1. Uniform wall thickness.2. Conformance to substrate.

Note : When installing multiple tubes,make sure that the surface of the lasttube is still warm before positioning andshrinking the next tube. If installed tubehas cooled, re-heat the entire surface.

Overheating of tubing must be avoided.This is evidenced by scorching orblistering on the surface. Any minorsurface scorching that can be removedby solvent cleaning is acceptable.Tubing with deep blistering must bereplaced.

Busbar PreparationBusbar must be free of sharp edges orburrs and thoroughly cleaned.

Lubricate bent busbars by applying athin film of silicone grease or a greasewith a melting temperature above theintended shrinking temperature.

Dow Corning 7 Release compound hasbeen used successfully. Aqua Gel II(Ideal Industries Inc. - IL) is anacceptable alternative.

Straight busbars do not need to belubricated.

Sealant:To environmentally seal, use either S-1085 or S-1251 adhesive.

Cutting Length & Technique

Care should be taken when cuttingtubings to ensure that the cut edge isclean (no jagged edges). A cutting tool(utility knife) or a guillotine with a suitablysharp blade and the facility for clampingthe tubing during cutting isrecommended. A paper cutter with acurved blade has been usedsuccessfully (one stroke only).

When measuring tubings for longlengths, about 5 - 10% extra lengthshould be added to take account oflongitudinal shrinkage .

Tubing

Cutting Tool

Cutting Edge

1144

General Shrinking Instructions• Apply outer 3-to 4- inch (75 to 100 mm) tip of the flame to heat-shrinkable material with a rapidbrushing motion.• Keep flame moving to avoidscorching.• Unless otherwise instructed, startshrinking at the beginning of the tubingworking around the busbar with asmooth brushing motion.

Recommended Raychem TorchesInstall heat-shrinkable cable accessorieswith a "clean burning" torch, i.e., apropane torch that does not depositconductive contaminants on the product.

Clean burning torches include theRaychem FH-2609, FH-2629 (usesrefillable propane cylinders) and FH-2616A1 (uses disposable cylinder).

Cleaning the CableUse an approved solvent, such as theone supplied in the P63 Cable Prep Kit,to clean the cable. Be sure to follow themanufacturer's instructions. Failure tofollow these instructions could lead toproduct failure.

Some newer solvents do not evaporatequickly and need to be removed with aclean, lint-free cloth. Failure to do socould change the volume resistivity ofthe substrate or leave a residue on thesurface.

Please follow the manufacturer'sinstructions carefully.

Safety InstructionsWarning: When installing electricalpower system accessories, failure tofollow applicable personal safetyrequirements and written installationinstructions could result in fire orexplosion and serious or fatal injuries.

To avoid risk of accidental fire orexplosion when using gas torches,always check all connections for leaksbefore igniting the torch and follow thetorch manufacturer's safety instructions.

To minimize any effect of fumesproduced during installation, alwaysprovide good ventilation of confinedwork spaces.

As Raychem has no control over fieldconditions which influence productinstallation, it is understood that theuser must take this into account andapply his own experience andexpertise when installing product.

Adjusting the TorchAdjust regulator and torch as required toprovide an overall 12- inch bushy flame.The FH-2629 will be all blue, the other

torches will have a 3- to 4-inch yellowtip. Use the yellow tip for shrinking.

Regulator PressureFH-2616A1 Full pressureFH-2609 5 psigFH-2629 15 psig





Supplier ID: 26848

SystemVoltage BIL Uninsulated BPTM BBITkV kV A* B** A* B** A* B**15 95 7.5” 5” 3.4” 4.2” 2.2” 2.6”25 125 10.5” 7.5” 4.5” 6.0” 2.8” 4.0”35 150 12.5” 9.5” 6.5” 8.0” 5.6” 7.5”

*phase to phase **phase to ground

1. Verify product selection under ANSI Specification, then go to Page 5, Step 2.Find the appropriate voltage class in the tables below and check the tubing selection with the bus dimensions given. Table 1 :5 to 15kV, Table 2 : 25kV, Table 3 : 35kV. All dimensions are in inches.Figure A: Typical "indoor" clearance for rectangular barsThese spacings should not be adopted without actual testing by the user. Sharp electrodes and unusual geometries willrequire wider spacing.

Square Busbar

N/AN/A1x11.5x1.52x23x34x45x5



3

Catalog Number

BPTM- 15/6-A/UBPTM-30/12-A/UBPTM-50/20-A/UBPTM-75/30-A/UBPTM-100/40-A/UBPTM-120/50-A/UBPTM-175/70-A/UBPTM-205/110-A/U

Catalog Number

BPTM- 15/6-A/UBPTM-30/12-A/UBPTM-50/20-A/UBPTM-75/30-A/UBPTM-100/40-A/UBPTM-120/50-A/UBPTM-175/70-A/UBPTM-205/110-A/U

Catalog Number

BBIT-25/10-A/UBBIT-40/16-A/UBBIT-65/25-A/UBBIT-100/40-A/UBBIT-150/60-A/UBBIT-175/80-A/U

Rectangular Busbar

N/A0.5x1/2 to 1x1/41x1/2 to 1x5/82x1/4 to 3x1/43x1/4 to 4x1/43x5/8 to 6x1/45x1/4 to 8x5/88x1/4 to 8x5/8

Rectangular Busbar

N/A0.51x1/2 to 1x5/82x1/4 to 2x5/83x1/4 to 3x5/83x5/8 to 4x5/85x1/4 to 6x5/88x1/4 to 8x5/8

Rectangular Busbar

0.5x1/2 to 0.5x5/81x1/4 to 1x5/82x1/4 to 2x5/82x5/8 to 3x5/84x1/4 to 4x5/85x1/4 to 6x5/8

Square Busbar

N/AN/AN/A1x11.5x1.52x23x34x4

Square Busbar

N/AN/A1x12x23x34x4

Round Busbar

0.26 to 0.520.53 to 0.900.90 to 1.351.30 to 2.001.75 to 2.752.15 to 4.003.20 to 5.504.75 to 7.00

Round Busbar

0.26 to 0.300.53 to 0.650.90 to 1.101.30 to 1.651.75 to 2.302.15 to 3.203.20 to 4.404.75 to 6.80

Round Busbar

0.5 to 0.70.7 to 1.101.10 to 1.551.75 to 2.452.60 to 3.603.45 to 4.75

0.59 0.241.18 0.471.97 0.792.95 1.183.94 1.574.72 1.976.88 2.758.07 4.33

0.98 0.391.57 0.632.56 0.983.94 1.575.91 2.366.89 3.15

B AA

B

0.59 0.241.18 0.471.97 0.792.95 1.183.94 1.574.72 1.976.88 2.758.07 4.33

Diameter As Diameter FullySupplied Recovered



For ANSI only

Table 3: 35kV Busbar


Table 1: 5, 8 & 15kV Busbar

Installation Instructions

Figure A

For ANSI C37.20 go to step 1.

For IEC go to page 4.

Product Specification & Selection Information





Supplier ID: 26848





Supplier ID: 26848




4

Diameter DiameterRectangular Busbar Rectangular Busbar Round Busbar As Fully

Catalog Number Double* Supplied Recovered

BPTM-15/6-A/U N/A N/A 6.5 to 12 15 6BPTM-30/12-A/U N/A N/A 13.5 to 25 30 12BPTM-50/20-A/U 40x5 to 50x10 2x40 x5 22 to 43 50 20BPTM-75/30-A/U 60x10 to 80x10 2x40x10 to 2x60x10 33 to 63 75 30BPTM-100/40-A/U 100x10 2x80x10 44 to 86 100 40BPTM-120/50-A/U 120x10 2x100x10 to 2x120x10 55 to 105 120 50BPTM-175/70-A/U N/A N/A 80 to 150 175 70BPTM-205/110-A/U N/A N/A 120 to 180 205 110

Diameter DiameterRectangular Busbar Rectangular Busbar Round Busbar As Fully

Catalog Number Double* Supplied Recovered

BBIT-25/10-A/U N/A N/A 11 to 20 25 10BBIT-40/16-A/U N/A N/A 18 to 32 40 16BBIT-65/25-A/U 40x5 to 50x10 2x40x5 28 to 47 65 25BBIT-100/40-A/U 60x10 to 80x10 2x40x10 to 2x60x10 44 to 72 100 40BBIT-150/60-A/U 100x10 to 120x10 2x80x10 to 2x120x10 65 to 105 150 60

System Uninsulated BPTM BBITVoltage BIL Clearance–Indoor Clearance–Indoor Clearance–IndoorkV kV A* B** A* B** A* B**12 75 120 120 65 75 35 4524 125 220 220 115 150 70 10036 170 320 320 200 285 140 190

*phase to phase **phase to ground

B AA

B

*Assuming that double busbars are separated by a space equal to busbar thickness.

*Assuming that double busbars are separated by a space equal to busbar thickness.

1. Verify product selection under IEC Specification, then go to Page 5, Step 2.

Find the appropriate voltage class in the tables below and check the tubing selection with the bus dimensions given.Table 1 : 5 to 24kV, Table 2 : 36kV. All dimensions are in millimeters.

Figure A: Typical "indoor" clearance for rectangular barsThese spacings should not be adopted without actual testing by the user. Sharp electrodes and unusualgeometries will require wider spacing.

For IEC only


Table 1: 5 to 24kV Busbar

Figure A




5

If shrinking with an oven, go to Page 6, Step 7. Instructions below arefor shrinking with a torch.

3. Preheat busbar.

Note: If applying product to bent busbar,lubricate bar with thin film of approvedlubricant. Straight busbars do notrequire lubrication.

Preheat busbar with torch until it feelshot to the touch.

5. Shrink in place.

Begin shrinking at one end of the tube,working the torch with a smoothbrushing motion around the tube. Asthe tube shrinks, work torch as beforetoward the other end, continuouslymoving the torch to avoid scorching.

For straight or bent busbars only.

Go to Step 3, below.

CHOICE 1

For bolted in-line connection up to25kV only.

Go to Page 7, Step 10.

CHOICE 2

For 35kV-ANSI or 36kV IEC boltedin-line connection only.

Go to Page 9, Step 17.

CHOICE 3

1149

6. Inspect installation; trim excess.

A properly installed tube will be smoothand conform to the contour of thebusbar.

Note: Cold spots (or dimpling) may bepresent if the busbar was not sufficientlypreheated. These may be eliminated byapplying more heat to the tube.

Allow the insulated busbar to cool toroom temperature before trimming endsto the required length and/or punchingholes in the tube.

Installation is complete. 1149a

1147

2. Select Application.

Choose the application (Choice 1-3) and follow the directions given.

1148

4. Position tube.

Slide tube over busbar into correctposition. Excess wrinkles should beavoided.

Note: If installing on bent busbar, takecare not to scratch the inside of the tubeagainst the busbar end. Distributewrinkles around bend as evenly aspossible.





Supplier ID: 26848

Note: The following instructions are forshrinking product on a straight or bentbusbar using an oven. This method isrecommended for industrial productionusing an air circulating (batch or paintdrying) oven.

Note: If applying product to bent busbar,lubricate with thin film of approved lubricant.Straight busbars do not require lubrication.

7. Position tube.

Position tube on busbar. If bars are to behung, secure tubing to busbar with maskingtape. Excess wrinkles should be avoided.

Note: If installing on bent busbar, take carenot to scratch the inside of the tube againstthe busbar end. Distribute wrinkles aroundbend as evenly as possible.

Suspend or support the bars such that theunrestricted recovery of the tubing will beallowed.




6

9. Inspect installation, trim excess.

After shrinking, remove bars from oven andleave hanging to cool to room temperature.A properly installed tube will be smooth andconform to the contour of the busbar.

Note: Cold spots (or dimpling) may bepresent if the oven temperature was too lowor if the bars did not remain in the ovenlong enough. To prevent dents in thetubing, avoid resting bars against any hardsurface while cooling. Cold spots anddents may be eliminated by returning thebars to the oven.

Allow the insulated busbar to cool to roomtemperature before trimming ends to therequired length and/or punching holes inthe tube.

Installation is complete.

1150

1151

8. Place tubes in preheated oven.

Place the bars with tubing in place in aprewarmed oven with a temperature setpoint of 320-360oF(160-180oC).

Shrinking time depends on oventemperature and cross section of busbars.Average shrinking time is 10-15 minutes;shrink time lower than 5 minutes is notrecommended.





Supplier ID: 26848


7

For bolted in-line connection upto 25kV only.

10. Clean busbar and insulation.

Using an approved solvent, cleanexposed busbar connection areaand adjacent insulation as shown.

11. Cut BPTM.

Refer to Figure B for Dimension Cand cut 2 pieces of BPTM asshown.

12. Position pieces on busbar;connect busbars.

Slide the longer piece of BPTMover one side of the connection,then slide the shorter piece on thesame side as shown.

Connect the busbars. Deburr andremove any sharp edges from theconnection.

CHOICE 2 ExistingInsulation

Clean10"

(254mm)Clean10"

(254mm)

Overlap bars with holes alignedand measure "C" distance

C

Butt bars togetherand measure "C" distance

C

OverlapSplice

ButtSplice

C + 6"(C + 150mm)

C + 12"(C + 300mm)

BPTM BPTM

Bolt busbars together


OverlapSplice

ButtSplice

1152

C + 6"

(C + 150mm)

C + 12"

(C + 300mm)

1153a

1153

1154



Figure B





Supplier ID: 26848




8

15. Position longer tube; shrinkin place.

Center the longer length of BPTMover the piece installed in Step 13.

Shrink in place using methoddescribed in Step 13.

1157

14. Apply adhesive strips.

Wrap the adhesive strip on bothsides of the installed BPTM,overlapping the BPTM and existinginsulation as shown.

16. Inspect installation.

A properly installed tube will besmooth and conform to the contourof the busbar.

Note: Cold spots (or dimpling) maybe present. These may beeliminated by applying more heat tothe tube. As before, keep the torchmoving to avoid scorching.

Installation is complete. 1158

adhesive stripadhesive strip

1-1/2"

1/2" End of BPTM

1156

13. Position short tubing; shrinkin place.

Center the shorter length of BPTMover the connection.

Begin shrinking at the center of thetube, working the torch with asmooth brushing motion around thetube. As the tube shrinks, worktorch as before toward the one end,then the other, continuously movingthe torch to avoid scorching.

1155





Supplier ID: 26848


For 35kV-ANSI or 36kV IEC boltedin-line connection only.

17. Clean busbar and insulation.

Using an approved solvent, cleanexposed busbar connection areaand adjacent insulation as shown.

18. Cut BBIT.

Refer to Figure B for Dimension Cand cut 2 pieces of BBIT as shown.

19. Position pieces on busbar;connect busbars.

Slide the longer piece of BBIT overone side of the connection, thenslide the shorter piece on the sameside as shown.

Connect the busbars. Deburr andremove any sharp edges from theconnection.

CHOICE 3 ExistingInsulation

Clean10"

(254mm)Clean10"

(254mm)

Overlap bars with holes alignedand measure "C" distance

C

Butt bars togetherand measure "C" distance

C

OverlapSplice

ButtSplice

C + 6"(C + 150mm)

C + 12"(C + 300mm)

BBIT BBIT



OverlapSplice

ButtSplice

1152

1153t

C + 6"

(C + 150mm)

C + 12"

(C + 300mm)

1153a

1154

Figure C



9





Supplier ID: 26848


10PII-51076, Rev ADDCR C27730, PCN 84147-000Effective Date: January 16, 1996

ã 1996 Raychem CorporationPrinted USA 1/16/96

22. Position longer tube; shrinkin place.

Center the longer length of BBITover the piece installed in Step 20.

Shrink in place using methoddescribed in Step 20.

1157

21. Apply adhesive strips.

Wrap the adhesive strip on bothsides of the installed BBIT,overlapping the BBIT and existinginsulation as shown.

23. Inspect installation.

A properly installed tube will besmooth and conform to the contourof the busbar.

Note: Cold spots (or dimpling) maybe present. These may beeliminated by applying more heat tothe tube. As before, keep the torchmoving to avoid scorching.

Installation is complete. 1158

adhesive stripadhesive strip

1-1/2"

1/2" End of BBIT

1156a

20. Position short tubing; shrinkin place.

Center the shorter length of BBITover the connection.

Begin shrinking at the center of thetube, working the torch with asmooth brushing motion around thetube. As the tube shrinks, worktorch as before toward the one end,then the other, continuously movingthe torch to avoid scorching.

1155





Supplier ID: 26848

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