23. YXTK 13-1806 RPR FDR 5 Design Analysis (Section 5) (Ref Only)).pdf

YXTK 13-1806 Repair Electrical

Distribution Lines, Feeder 5

100% Design Analysis

Prepared for:

45 Civil Engineer Squadron (CES)

Space Launch Delta 45 (SLD 45)

Patrick Space Force Base, Florida 32925

TRACES

YXTK 13-1806 Repair Electrical Distribution Lines, Feeder 5

Ascension Island

Prepared by:

December 6, 2021

To B-1 2126- A

To B-1 2126-

BTo MH -44C

To HH -2

To HH -2 To HH -3 To MH

-44B To B-1

To B-1 2128To MH

-44B

To HH -3

To MH -41

To MH -42A

To MH -43

To B-1 2177

To MH -42

To MH -42B

To HH -4 To B-1 2144

To MH -43

To MH -42

To HH -4 To MH -44

To MH -43A

To MH -42A

To MH -42C

To MH -42B

To Pol e 2 To MH -43

To MH -43B

To MH -44B

To MH -44

To MH -46A

To MH -46

To MH -44C

To MH -44A

To B-1 2074

To MH -46

To MH -46B To B-1 2106To B-1 2275

To MH -46A

To MH -45

To MH -45

To MH -46A

To B-1 2071

To MH -46

To MH -44

To B-1 2113 To B-1 2103

To MH -44A

To MH -45 To MH -45

To MH -43

To MH -45

To MH -43A

To B-1 2335

To MH -43B

To Pol e 28A

To PO L

To C& W

To MH -40

To MH -42 To MH -41A

To HH -1

To MH -41

To B-1 2282

To B-1 2188

To Pol e 72

To B-4

To Pol e 75

To Pol e 103

To MH -54

To MH -54

To MH -53To B-1

To MH -7

To MH -6

To MH -4

To B-1 2135To MH -5

To MH -5

To MH -4

To MH -6A

To HH -6

To HH -6

To B-1 2280

To B-1 2281

To HH -5

To HH -6

To MH -7A

To HH -18

To HH -1To MH -44B

To MH -44C

To HH -1

To MH -47

To B-1 2176

To B-1 2175

To B-1 2101

To MH -38

To MH -47To MH -4

To MH -47

To CV -1213 4 To MH -38

To MH -1

To MH -3

To MH -1 To MH -47

To CV -1213 4 To MH -38

To MH -39

To MH -3

To B-1 2133

To B-1 2130

To MH -4

To MH -38

To MH -39

To MH -40

To MH -40

To MH -40

To B-1 2127-

A

To B-1 2127- B To HH -18

To MH -52

To HH -7To B-1 2114

To MH -49

To MH -47

To MH -49

To T-1 2316X

To MH -50

To MH -48

To MH -49

To MH -48

To B-1 2110To HH -7

To MH -49

To B-1 2100

To MH -50

To B-1 2120

To MH -49

To MH -52

To MH -49

To MH -51

To MH -39

To B-1 2120

To MH -51

To MH -40To B-1 2145

To MH -50

To B-1 2125

To MH -39

To B-1 2143 To B-1 2142

To B-1 2141

To MH -41

To MH -8C

To B-1 2370

To HH -9

To B-1 2180

To HH -9

To B-1 2180

To MH -9

To HH -9

To B-1 2304

To HH -8

To HH -8D

To MH -8D To MH -8B

To MH -10

To MH -8

To MH -8C

To MH -8

To B-1 2155

To MH -9

To MH -8

To MH -8B

To MH -8A

To MH -7

To MH -8A

To MH -46

To B-1 2306

To MH -46B

To MH -8

To MH -7A

To MH -6

To MH -6D

To MH -7

To MH -6D

To MH -12

To MH -6

To B-1 2329

To B-1 2153

To B-1 2182 To MH -6C

To MH -6C

To B-1 2150

To MH -6A

To MH -6A

To B-1 2131

To MH -6CTo MH -11 To MH -6A

To MH -6

To MH -5

To MH -6B

HH-3

HH-4

HH-7

HH-1

MH-9

HH-9

HH-8

HH-6

HH-5

HH-2

MH-8 MH-7

MH-6

MH-5

MH-4 MH-1

MH-3

HH-11

HH-18

MH-43

MH-42

MH-41

MH-40

MH-44

MH-45

MH-46

MH-10

MH-8CMH-8D

HH-19

HH-12

MH-8B

MH-8A

MH-7A

MH-11MH-6D

MH-6C MH-6A

MH-6B

MH-52MH-48

MH-49

MH-50

MH-51

MH-39

MH-47

MH-38

MH-53

MH-54

MH-CW2

MH-CW1

MH-43B

MH-43A

MH-42C

MH-44C

MH-44B

MH-42B

MH-42A

MH-41AMH-44AMH-46A

MH-46B

HH-3 AIP

MH-2-AIP

HH-7A-AIP

HH-74-AIP

12120 12125

12074

12124

12144 12128

12101

16545

12103

12150

12134

12145

12221

12275

41011

12155 12142

12175

12141

12143

16547 16546

12176

12013

12126 12127

12012

12110

12016

12103

12131

12177

12114

12331

12332 12188 12282

12083

12106

12100

12180

12182

12274

12225

12366

12280

12330

12130 12135

12153

12304

12071

12306

12113

12370

No RP

12009

No RP

41017

16556

12320

12299

12264

12372

12367

12335

12133

12272

12311

12316 12314

12318 12321

12315

12324 12326 12323

12313

12371

No RP

41013

12339

No RP

12015

12374 12375

No RP

12329

12281

12398

12168

12356 12356

12345

12077

12301

16553

12084

12356

12373

12137

12358

12333

12204

41020

41016

12226

1237612149

12368

12197

12054

12187

12147

12136

12066

12334

1216912156

12223

12279

12192 12192

Legend

* Comm Manhole

Duct Aerial Ductbank Direct Buried Under-Road Building

0 300 600 900 1,200 1,500150 Feet

MAP PRODUCED BY: SPATIAL TECHNOLOGIES: 26 JANUARY 2016

MAP CONTROL#: STYXTK01

For Official Use Only: Do Not Distribute

Ascension AAF µ

1136967386N Callout Start: Bldg. 12134 End: Pole 16 Copper: 800pr Fiber 144str

1136967386N Callout Start: Pole 16 Transition: HH-11 Copper: 300pr Fiber 48str

1136967386N Callout Start: HH-11 End: SURE Comm.

Copper: 200pr Fiber 48str

1136967386N Callout Start: Pole 16 End: Pole 38 Copper: 400pr Fiber 144str

1136967386N Callout Start: Pole 38 End: Bldg. 12225 Copper: 50pr Fiber 24str

1136967386N Callout Start: Pole 38 Transition: HH-12 Copper: 300pr Fiber 72str

1136967386N Callout Start: Pole 103 End: B. 16545 Copper: 200pr Fiber 48 str

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Polygonal Line

1136967386N Polygonal Line

1136967386N Polygonal Line

1136967386N Polygonal Line

1136967386N Polygonal Line

1136967386N Polygonal Line

1136967386N Rectangle

1136967386N Typewritten Text

SURE

1136967386N Sticky Note Marked set by 1136967386N

1136967386N Sticky Note Marked set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Sticky Note Accepted set by 1136967386N

1136967386N Callout Pole 38

1136967386N Callout Pole 16

1136967386N Callout Bldg 12134

1136967386N Callout Fiber goes under ground at Pole 72 and does not transitions back to aerial until Pole 74. Fiber is also underground from HH12 to transmitter site.

1136967386N Callout Start: HH-11 End: POL Bldg.

Copper: 50pr Fiber 12str

1136967386N Callout Start: HH-12 Transition: Pole 103 Copper: 200pr Fiber 48str

Smith Callout Start: HH-12 Copper: 100pr Fiber: 24str

90% DESIGN

5.4 Calculations

Guy Tensioning Calculations

Assumptons:

All conductors and wire are tensioned at 25% of breaking strength

Vertical loads of cables are sufficiently supported by pole

Assume 40 degree angle between bottom of guy wire and grade

0.25 * Breaking Tension of Cable = Total Tension Force Applied to Pole

Phase Conductors

0.25 * 3003 lbs = 750.75 lbs.

at 42 ft. above grade

Moment = 31531.5 lb. ft

0.25 * 3003 lbs = 750.75 lbs.

at 40 ft. above grade

Moment = 30030

0.25 * 3003 lbs = 750.75 lbs.

at 38 ft. above grade

Moment = 28528.5

Communication Messenger Wire

0.25*30200 lbs *1 = 7550 lbs.

at 34.5 ft. above grade

Moment = 260475

Total Moment from Tension 350565 lb. - ft.

Location of Guy Wire Above Grade 41 ft above grade

Gx = G(4/5)

Total Moment in X Direction = 0 = 350565 - G(4/5)(41)

G= 350565/32.8

G= 10688 lbs.

Tension Force Required in Guy Wire = 10,690 lbs.

Safety Factor of 2:1 Guy Wire Must be Able to Withstand 21,280 lbs.

WIND LOADS

Area of Pole exposed to wind:

H1 = Pole height above ground (ft)

A = Projected area above ground line in SF a = diamter at top of pole (inches)

H1 = 43 feet b = diameter of pole at ground line (inches) a = 6 inches b = 13 inches

A = 34 SF

Center of the Area - HCa

Hca= 18.9 Feet (Moment Arm)

Wind Load on Pole

IEEE C2: 2007 National Electric Safety Code - Extreme Loading

V (Wind Region) = 130 MPH

A = 34 SF

kz = 1 (43 FT aboveground)

GRF = 0.97

I = 1

Cf = 1.6 (1.6 for square concrete poles, 1 for spun cast)

Wind Load on Pole = 2283 LBS

Load Factor = 1

Ground Line Moment = Wind Load * Load Factor * Moment Arm

Ground Line Moment = 43056 FT-LBS

Wind Load on Conductors and Equipment

Wind Load on Phase Conductors

I = 1 (for wire)

Cf = 1 (for wire)

A= 0.024 SF/FT length 0.258" diameter for phase conductors kz = 1.1

GRF = 0.88

V= 130 MPH

Wind Load on Phase Conductors = 1.0 LBS/FT

Total Load = Length of conductor * Load per foot of conductor

Total Load = 201 LBS (200 ft. span)

603 LBS

Wind Load on Communication Conductors

I = 1 (for wire)

Cf = 1 (for wire)

A= 0.3 SF/FT length 3.7" diameter for Comm and Messenger cable kz = 1

GRF = 0.93

V= 130 MPH

Wind Load on Comm Conductors = 12.1 LBS/FT

Total Load = Length of conductor * Load per foot of conductor

Total Load = 2414 LBS

Wind Load on Transformer

I = 1 (for wire)

Cf = 1 (for wire)

A= 5 SF Transformer surface area kz = 1.1

GRF = 0.97

V= 130 MPH

Wind Load on Pole Mounted Equip. = 230.8 LBS

Total Load = 231 LBS

Wind Load on all 3

Conductors =

Total Ground Line Moment (GLM)

Equip./Wi re #

Wind Load

(LBS/FT) Span (FT)

Height from ground

(FT)

Moment

(FT-LBS.)

Phase A 1 1.0 200 43 8644

Phase B 1 1.0 200 43 8644

Phase C 1 1.0 200 43 8644

Comm. 1 12.1 200 20 48283

XMFR 1 231 35 8078

Total Equipment GLM 82293 ft-lbs.

Total Pole GLM 43056 ft-lbs.

Total Pole GLM and Equipment GLM = 125349 ft-lbs.

Ultimate Transverse Load = Wind Load on Pole + Conductors + Transformers

Ultimate Transverse Load = 5531 lbs.

Variables ς = Sag

T = Conductor breaking strength W = Conductor weight (lbs) per length (ft) S= Span between poles L= Length of cable % = Percentage of conductor breaking strength

Determine span between poles based on sag:

Cable Type: Copper Size: #2 AWG Insulation: Bare Code Reference ς = 2 LF UFC 3-550-01, Section 3-10, Part A

T = 3003 lbs W = 0.2533 lbs/LF

= 217.77 ft 257.664 ft 307.9676 ft 25% 35% 50%

200 ft

Determine sag between poles:

Cable Type: Copper

Size: #1/0 AWG Code Reference

Insulation: EPR UFC 3-550-01, Section 3-10, Part A

W = 2.76 lbs/LF

L = 200.00 LF

Cable Type: Messenger Wire

Size: 1/2"

Material: Stainless Steel

Type: M

T = 30200 lbs

W = 0.56 lbs/LF

L = 200 LF

W total = 3.32 lbs/feet *W total is the sum of the 1/0 EPR cable, and messenger wire

= 2.20 ft 1.57 ft 1.10 ft

25% 35% 50%

Determine sag between poles:

Cable Type: Copper

Size: #4/0 AWG Code Reference

Insulation: EPR UFC 3-550-01, Section 3-10, Part A

W = 4.136 lbs/LF

L = 200.00 LF

Cable Type: Messenger Wire

Size: 1/2"

Material: Stainless Steel

T = 30200 lbs

W = 0.56 lbs/LF

L = 200 LF

W total = 4.696 lbs/LF *W total is the sum of the 4/0 EPR cable, and messenger wire weights

= 3.11 ft 2.22 ft 1.55 ft 25% 35% 50%

Determine sag between poles:

Cable Type: Fiber

Size: 144 strands Code Reference

W = 0.27 lbs/LF UFC 3-550-01, Section 3-10, Part A

L= 200.00 LF

Sag and Tension Calculation

Average distance between poles:

ς =

�∗�∗ς

�∗�∗ς ς = ς =

Sag and Tension Calculation

Cable Type: Copper

Size: 900 pairs

W = 4.65 lbs/feet

L= 200.00 LF

Cable Type: Messenger Wire Size: 1/2"

Material Stainless Steel

T = 30200 lbs

W = 0.56 lbs/LF

L= 200 LF

W total = 5.48 lbs/LF *W total is the sum of the 144 fiber strands, 800 pair copper, and messenger wire weights

= 3.63 ft 2.6 ft 1.81 ft

25% 35% 50%

Code References

UFC: UFC 3-550-01, Section 3-10, Part A

Material Cut Sheets

Messenger Wire: https://www.loosco.com/upload/pdf/SZ50017L.pdf

Code References & Material Cut Sheets

Phase Conductor: https://nassaunationalcable.com/products/mv105-15kv-three-conductor-epr-pvc-power-cable

Fiber Optic:

Copper:

https://www.discount-low-voltage.com/Cable/Aerial-Duct-Fiber-Cable/144EU4-T4101D20 https://www.ptsupply.com/solutions-library/Product%20Info/outside-telephone.pdf ς =

90% DESIGN

5.5 Product Data

AutoCAD SHX Text

PROJ. NO:

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CONTRACTOR:

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ENGINEER:

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ARCHITECT:

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LOCATION:

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JOB NAME:

AutoCAD SHX Text R

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RELEASED:

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OF:

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BY

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DATE

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DESCRIPTION

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CHK.

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REV

AutoCAD SHX Text DURA-STRESS Inc.

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P.O. BOX 490779 LEESBURG , FL 34749-0779

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PHONE (352) 787-1422 FAX. (352) 787-0080

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STRUCTURAL PRESTRESSED AND ARCHITECTURAL PRECAST CONCRETE PRODUCTS

AutoCAD SHX Text

APPR.

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DRAWN

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CHK'D.

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SHT:

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DATE

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DS JOB NO:

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VARIES

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PER "L"

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PER "L"

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VARIES

AutoCAD SHX Text 2"

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TYP.

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(8) i @ 270K 'LO-LAX'

AutoCAD SHX Text

STRAND AT 27,000# EACH

AutoCAD SHX Text

(4) i @ 270K 'LO-LAX'

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UNSTRESS STR. TO COVER

AutoCAD SHX Text

#5 GAUGE SPIRAL

AutoCAD SHX Text 9"

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48" NO. 6

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GROUND WIRE

AutoCAD SHX Text

TAPER .162' PER FT.

AutoCAD SHX Text 12 @ 2"

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STRESSED STRANDS

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NOT SHOWN FOR CLARITY

AutoCAD SHX Text 4"

AutoCAD SHX Text 9"

AutoCAD SHX Text 9"

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%%UVIEW AT TOP

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%%UREINFORCING

AutoCAD SHX Text N.T.S.

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# 5 GA. SPIRALS (TYP.)

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%%UVIEW AT BUTT

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%%USECT. AT 6`0" FROM BUTT

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THIS POLE SHALL MEET OR EXCEED

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REQUIREMENTS SET FORTH BY F.D.O.T. SPECIFICATIONS.

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%%UPOLE ELEVATION

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%%U MATERIALS SPECIFICATION

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A) F'C = 6,000 PSI (28 DAYS)

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B) F'CI = 4,000 PSI (RELEASE)

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PRESTRESSING STRANDS

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COMPLYING WITH ASTM A416

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D) FY = 60 KSI FOR STIRRUPS AND

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REINFORCING BARS PER

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ASTM A615

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%%UTYPE P-IV SERVICE POLE

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GROUND WIRE

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24" NO. 6

AutoCAD SHX Text 3'-0"

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PLUG TOP OF POLE

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WITH MIN. OF 3" CONC.

AutoCAD SHX Text 1 1/2"

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BALANCE AT 6" PITCH

AutoCAD SHX Text N.T.S.

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4"X6" HANDHOLE

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WITH COVER

AutoCAD SHX Text 1 1/2"

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I.D. MARKINGS

AutoCAD SHX Text C) Fu = 270 KSI FOR

AutoCAD SHX Text 12'-0"

AutoCAD SHX Text 50'-0"

AutoCAD SHX Text 7"

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POLE MUST BE PICKED UP AND STORED

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AT TWO POINTS, APPROX. 9 FT. FROM TOP AND

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5 FT. FROM BUTT. CAUTION: LIFTING THIS POLE

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WITH A SINGLE POINT PICK-UP WILL RESULT IN

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DAMAGE TO THE POLE.

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ALL EMBEDS ARE %%P 3" U.O.N.

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I.D. DETAILS = MANUFACTURER, CUSTOMER, WT,

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DATE MFG, POLE TYPE, LENGTH & QPL #

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9.67" TO 17.77"

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35'-0" TO 85'-0"

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2 TURNS @ BOTTOM

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1 TURN @ SPLICE

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60% OF POLE LENGTH

AutoCAD SHX Text 2"

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TYP.

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E) FY = 60 KSI SPIRAL WIRE

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ASTM A82

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%%UNOTES

AutoCAD SHX Text 2"

AutoCAD SHX Text 2"

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CUSTOMER:

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QTY: TYPE IV-50'

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WT: 6,300 LBS.

AutoCAD SHX Text @ 45%%D jstev Rectangle

© 2007, AFL, all rights reserved. PP-2-00056, Revision 10, 5.7.2021 Specifications are subject to change without notice.

AFLglobal.com | 800.235.3423

Optical Connectivity

O pt ic al

C on ne ct iv ity

FUSEConnect® Fusion-Spliced, Field-Installable Connectors AFL’s FUSEConnect fusion-spliced, field installable connectors are uniquely designed and feature only four to five components. The factory pre-polished ferrule eliminates the need for polishing, adhesives, and crimping in the field, which minimizes the potential for operator error and expensive connector scrap.

FUSEConnect utilizes a fusion splicer to terminate the connector in the field, addressing return loss concerns present in analog optical networks. This advanced process yields true APC performance for SC/APC and LC/APC configurations. FUSEConnect is compatible with Fujikura fusion splicers and most other fiber holder-based fusion splicing platforms.

Features

Applications

• Connectorization in:

- RF-overlay FTTP networks

- Cable TV backbone networks

- Outside plant

- FTTD

- MDU FTTP Cabling

Specifications

PARAMETER VALUE

Connector Type SC, LC, FC, ST

Cable Type 900 µm, 2 mm, 3 mm, 4.8 mm (SC only)

Polish APC, UPC, PC

Insertion Loss SM: 0.15 dB (average), 0.25 dB (maximum) / MM: 0.10 dB (average), 0.25 dB (maximum)

Return Loss SM: ≤ -65 dB (APC), ≤ -55 dB (UPC)��� / MM: ≤ -35 dB (PC)

FUSEConnect Connectors (SC, FC, LC, ST)

FUSEConnect in Fusion Splicer

FUSEConnect Kits—ST (blue), SC (green), LC (blue)

FUSEConnect® Field-Installable Connectors continued

© 2007, AFL, all rights reserved. PP-2-00056, Revision 10, 5.7.2021 Specifications are subject to change without notice.

AFLglobal.com | 800.235.3423

Optical Connectivity

O pt ic al

C on ne ct iv ity

FUSEConnect® Fusion-Spliced, Field-Installable Connectors Ordering Information

CONNECTOR

TYPE

BOOT

TYPE

AFL NO.*

UPC SM

(Blue)

APC SM

(Green)

PC 62.5 µm MM (Beige)

PC 50 µm MM (Black)

PC 50 µm LOMMF

(AQUA) **

SC

900 µm FUSE-SC9SMU-6 FUSE-SC9SMA-6 FUSE-SC9M62-6 FUSE-SC9M50-6 FUSE-SC9M50L-6

3 mm FUSE-SC3SMU-6 FUSE-SC3SMA-6 FUSE-SC3M62-6 FUSE-SC3M50-6 FUSE-SC3M50L-6

4.8 mm FUSE-SC48SMU-6 FUSE-SC48SMA-6 — — —

LC

900 µm FUSE-LC9SMU-6 FUSE-LC9SMA-6 FUSE-LC9M62-6 FUSE-LC9M50-6 FUSE-LC9M50L-6

2 mm FUSE-LC2SMU-6 FUSE-LC2SMA-6 FUSE-LC2M62-6 FUSE-LC2M50-6 FUSE-LC2M50L-6

FC

900 µm FUSE-FC9SMU-6 — FUSE-FC9M62-6 FUSE-FC9M50-6 FUSE-FC9M50L-6

2 mm FUSE-FC2SMU-6 — FUSE-FC2M62-6 FUSE-FC2M50-6 FUSE-FC2M50L-6

3 mm FUSE-FC3SMU-6 — FUSE-FC3M62-6 FUSE-FC3M50-6 FUSE-FC3M50L-6

ST

900 µm FUSE-ST9SMU-6 — FUSE-ST9M62-6 FUSE-ST9M50-6 FUSE-ST9M50L-6

2 mm FUSE-ST2SMU-6 — FUSE-ST2M62-6 FUSE-ST2M50-6 FUSE-ST2M50L-6

3 mm FUSE-ST3SMU-6 — FUSE-ST3M62-6 FUSE-ST3M50-6 FUSE-ST3M50L-6

* AFL NO. is for one pack of 6 pieces ** Laser Optimized MM Fiber (LOMMF) compatible with OM3 and OM4 fibers

Temperature Specifications

TEMPERATURE RANGE

Operating Temperature -40°C to +75°C

S&C Type XS Fuse Cutouts Outdoor Distribution 4.16 kV through 25 kV

Application An Unexcelled Cutout S&C Type XS Fuse Cutouts, when fused with S&C Positrol® Fuse Links—provide full-fault-spectrum protection to overhead distribution systems rated

4.16 kV through 25 kV★, whether applied to overhead transformers, capacitors, cables, or lines. “Full-fault-spectrum protection” means that Type XS Cutouts interrupt all faults . . . from the lowest current that will melt the fuse link to the maximum rated interrupting current—whether the fault is on a transformer primary or secondary—with line-to-line or line-to-ground voltage across the cutout— regardless of transformer winding connections—and with the capability of handling the full range of transient-recovery-voltage severity associated with these conditions.

S&C Positrol Fuse Links possess melting time-current characteristics that are accurate not only initially but also on a sustained basis; this permanent accuracy is achieved principally through the design and construction of the fusible element. The silver or nickel-chrome elements in S&C Positrol Fuse Links are drawn through precision dies to very accurate diameters, assuring initial accuracy. And Positrol Fuse Links feature solderless construction—elements are swaged to their terminals to produce a permanent connection that is unaffected by vibration, corrosion, or aging.

All S&C Type XS Cutouts employ single venting— down and away only—an especially important feature where exhaust must be kept out of other phases in overbuilt circuits. Their nonexpendable fuse-tube cap construction, moreover, eliminates the extra expense of fuse-tube cap replacement.

Type XS Cutouts have been expressly designed for superior mechanical performance. Fusing is simple, even with gloved hands. Type XS Cutout fuse tubes are readily inserted in the cutout hinge and easily closed, without any need for careful steering or manipulation on the part of operating personnel— even from extreme angles and under adverse conditions of light and weather. And Type XS Cutouts can be opened and fuse tubes removed with equal ease.

. . . Becomes a Low-Cost Load-Switching Device With the attachment of Loadbuster®, S&C’s portable loadbreak tool, Type XS Cutouts convert to a sectionalizing device for no-external-arc live switching of transformers, capacitors, lines, or cables.

Loadbuster switching helps keep service interruptions to a minimum. There’s no need for complex switching procedures involving opening and reclosing of line and feeder breakers to permit dead switching. There’s no need for one or more line crews to travel and retravel miles of system. Loadbuster makes every cutout a sectionalizing point. Live switching can be done at the point that minimizes the length of planned outages and at the point where the fewest customers will be involved. As a bonus, Loadbuster will switch hook-equipped disconnects and power fuses too, adding even greater live-switching versatility.

Unlike switching with expensive loadbreak cutouts, there is no guesswork or uncertainty associated with switching Type XS Cutouts with Loadbuster. There is no dependence upon correct sequencing of the interrupting blade with the main blade, or upon spring assistance to snap open the auxiliary blade after years of inactivity . . . characteristics of loadbreak cutouts which are impossible to check prior to each attempted operation.

★ Also applicable on 26.4-kV through 34.5-kV systems for protection of single-phase-to-neutral circuits (lines or transformers) only, and grounded-wye connected capacitor banks in solidly-grounded-neutral (multigrounded-neutral) systems.

Performance Voltage and Interrupting Ratings S&C Type XS Fuse Cutouts are assigned single-value nominal voltage ratings (not “dual,” “slant,” or “system voltage class” ratings) and can be applied, without restriction, on all three-phase systems having system maximum operating voltage (line-to-line) less than or equal to the cutout maximum voltage.

Recognizing that under certain fault conditions cutouts can be exposed to voltage in excess of system line-to-neutral voltage—fault conditions which the cutouts should clear with no reliance on backup devices—S&C has tested Type XS Cutouts at full system line-to-line voltage across a wide spectrum of available fault currents, using transient recovery voltages realistically representative of those the cutout will see in actual service.

In contrast, most manufacturers of dual-voltage-rated cutouts restrict three-phase application of these cutouts to grounded-wye systems only. But even in such restricted applications the cutouts can still be exposed to voltage in excess of system line-to-neutral voltage under certain fault conditions, as noted above—and as recognized in the standards. In such instances the cutouts may not clear, thereby requiring a backup device to operate.

Type XS Cutout interrupting ratings have been substantiated by testing performed in accordance with IEEE C37.41-2000.

Shown on page 4 are asymmetrical and symmetrical interrupting ratings for both three-phase and single-phase applications of Type XS Cutouts.

The symmetrical ratings for the overhead—pole-top style cutouts are based on an X/R ratio of either 8 or 12, depending on cutout voltage rating and interrupting current rating (as specified by IEEE C37.41-2000)—realistic maximum ratios for locations where cutouts are normally applied on a typical distribution feeder. Higher symmetrical interrupting ratings apply, of course, at locations where the X/R ratio is lower. The curves in the chart below indicate the symmetrical ratings of Type XS Cutouts at other X/R ratios.

Symmetrical Interrupting Ratings at Various X/R Ratios

10000

12000

14000

16000

10 12 14 160 2 4 6 8

X/R RATIO

14.4-kV, 110-kV BIL, 100-ampere U.H.D.

25-kV, 125- and 150-kV BIL, 100-ampere U.H.D.;

and 14.4-kV, 110-kV BIL, 200-ampere U.H.D.

14.4-kV, 110-kV BIL, 100-ampere E.H.D.; and 25-kV, 125- and 150-kV BIL, 200-ampere U.H.D.

25-kV, 125- and 150-kV BIL, 100-ampere E.H.D.

IN

TE

R R

U

PT

IN

G

R

AT

IN

G

AM

PE

R

ES

, R

M S, S

YM

M

ET

R

IC

AL

60-Hertz Short-Circuit Interrupting Ratings①— Per IEEE C37.41-2000

of the circuit including the dc component, in accordance with IEEE standards.

current at locations where X/R ratio is equal to 8 (for Cutout Catalog Numbers 89021R10, 89071R11, 89072R11, and 89092R11) or 12 (for all other overhead—pole-top style cutouts). IEEE C37.41-2000 specifies these X/R ratios, as applicable, depending on cutout voltage rating and interrupting current rating.

◆ Approximate fuse-tube length, top of fuse-tube cap to bottom of fuse tube: 14³⁄₄ inches (375 mm).

■ Approximate fuse-tube length, top of fuse-tube cap to bottom of fuse tube: 18¹⁄₄ inches (464 mm).

transformers) only, and grounded-wye connected capacitor banks in solidly-grounded-neutral (multigrounded-neutral) systems—where the leakage distance to ground meets user’s requirements.

◐ Applicable for protection of single-phase-to-neutral circuits (lines or transformers) only, and grounded-wye connected capacitor banks in solidly-grounded-neutral (multigrounded-neutral) systems.

OVERHEAD–POLE-TOP STYLES—Three-Phase and Single-Phase Applications Continuous Current Rating, Amperes ð 100 200

Style ð Extra-Heavy-Duty②② Ultra-Heavy-Duty③③ Ultra-Heavy-Duty③③

Voltage Rating,

14.4 25 25 14.4 25 25 25 14.4 25 25kV, Nom. ð kV, MaxkV, Max ð 1515 2727 27 15 27 27 27 15 27 27 kV, BIL ð 110 125 150 110 125 150 150 110 125 150

Leakage Distance to Ground, Minimum, Inches (mm) ð 81/2 (216)

(279)

(432)

81/2 (216)

(279)

(432) ◆

(660) ■

81/2 (216)

(279)

(432)

Catalog Number with Porcelain Insulator ð 89021R10 89022R10 89042R10 89031R10 89032R10 89052R10 89053R10▼ 89071R11 89072R11 89092R11

System Voltage, kV ð

Short-Circuit Interrupting Rating, Amperes RMS, Asymmetrical④④ and Symmetrical⑤⑤

4.16 thru 14.4 10 000 7 100

8 000 5 300

8 000 5 300

16 000 10 600

12 000 8 000

12 000 8 000

12 000 8 000

16.5 thru 24.9 8 000 5 300

8 000 5 300

12 000 8 000

12 000 8 000

10 000 7 100

10 000 7 100

26.4● thru 34.5● 8 000 5 300

12 000 8 000

26.4◐ thru 34.5◐ 12 000 8 000

Switching Ratings S&C Type XS Cutouts are designed for use with Loadbuster, S&C’s portable loadbreak tool, which has an interrupting rating of 600 amperes nominal, 900 amperes maximum design. When used with Loadbuster, Type XS Cutouts are suitable for the following single-pole live-switching duties on single-phase or three-phase circuits of overhead distribution systems through 25 kV◐:

■ Transformer switching—transformer load currents up to and including the emergency peak-load capability of the fuse link, as well as transformer magnetizing currents associated with the applicable loads.

■ Line switching—load splitting (parallel or loop switching) and load dropping of currents up to and including the emergency peak-load capability of the fuse link or the continuous-current rating of the disconnect blade; also line dropping (charging currents typical for distribution systems of these voltage ratings).

■ Cable switching—load splitting (parallel or loop switching) and load dropping of currents up to and including the emergency peak-load capability of the fuse link or the continuous-current rating of the disconnect blade; also cable dropping (charging currents typical for distribution systems of these voltage ratings).

■ Capacitor-bank switching—switching of single capacitor banks as follows:

In single-pole switching of ungrounded-primary three-phase transformers or banks (or single-phase transformers connected line-to-line), circuit connections or parameters may, in some cases, produce excessive overvoltages. In particular, for the following applications above 22 kV, single-pole switching by any means—including Loadbuster— should be performed only under the conditions stated in italics:

■ Switching unloaded or lightly loaded delta-connected or ungrounded-primary wye-wye connected three-phase transformers or banks (or line-to-line connected single-phase transformers) rated 150 kVA or less three-phase, or 50 kVA or less single-phase—or of any kVA rating when combined with unloaded cables or lines—where maximum system operating voltage exceeds 22 kV. Single-pole switching should be performed only if each phase is carrying 5% load or more, or if the transformer or bank is temporarily grounded at the primary neutral during switching.

■ Switching loaded or unloaded ungrounded-primary wye-delta connected three-phase transformers or banks—alone or combined with unloaded cables or lines—where maximum system operating voltage exceeds 22 kV. Single-pole switching should be performed only if each phase is carrying 5% load or more and if the lighting-load phase is always switched open first (or switched closed last); or if the transformer or bank is temporarily grounded at the primary neutral during switching.

① Loadbusters must not be used for switching parallel (“back-to-back”) capacitor banks.

◧ Loadbusters must not be used for switching ungrounded-wye connected banks—or grounded-wye connected banks on ungrounded systems—where maximum system operating voltage exceeds 18 kV (for Loadbuster, Catalog Number 5300R3) or 29 kV (for Loadbuster, Catalog Number 5400R3).

◐ Also, 26.4-kV through 34.5-kV systems on single-phase-to-neutral circuits (lines or transformer protection) only, and grounded-wye connected capacitor banks in solidly-grounded-neutral (multigrounded-neutral) systems.

System Voltage, kV

Maximum Capacitor Bank Rating, kVAC, Three-Phase

Solidly or Effectively Grounded System

Ungrounded System

Single①① Banks, Grounded-Wye

Connected

Single①① Banks, Ungrounded-

Wye Connected

Single①① Banks, Grounded- or Ungrounded-

Wye Connected

4.16 and 4.8

6.9 and 7.2

8.32 12 thru 14.4

20.8 thru 23.9

24.9

Construction Ruggedness The mechanical construction of the Type XS Cutout is rugged and strong: it is designed to withstand the interruption forces of heavy fault currents and the typically forceful closing-in by operating personnel.

The upper contact and the hinge are attached to husky steel supports and the mounting bracket is attached to a strong mounting insert.

On cutouts with porcelain insulators, the supports and mounting insert are permanently anchored into cavities in the insulator with inorganic cement, which does not deteriorate with age or absorb moisture. The cement won’t shrink, so the supports and insert won’t loosen. It won’t swell either, thus eliminating stress on the cavities. The cement actually retains a slight resiliency to partially absorb the shock of the interruption forces.

On cutouts with polymer insulators, the supports and mounting insert are molded into a high-strength fiberglass-reinforced polyester core, over which is molded the composite-polymer silicone insulation.

The core has a thicker diameter near the top, center, and bottom for enhanced torsional rigidity.

No steel bands are needed around the top, bottom, and center of the insulator. Such bands produce mechanical stress concentrations at these three points; their thin insulation coatings are subject to damage due to mishandling on installation and to deterioration with time and weather; and there is an eventual loss of birdproofing and a lessening of the leakage distance.

Superb Current Transfer The fuse tube is held at the upper contact by a self-aligning spring-loaded detent-type latch. The detent features silver-clad embossed surfaces for built-in wiping action—resulting in minimum electrical resistance between the upper contact and the silver-clad fuse-tube cap.

The silver-clad lower contacts also feature embossed surfaces for built-in wiping action, and are backed up by prestressed stainless-steel loading springs for efficient current transfer between the contacts and the silver-clad fuse-tube trunnion.

These specially designed high-pressure upper and lower contacts, featuring built-in wiping action, ensure superb current transfer—even after the contacts have been exposed to the atmosphere for an extended period of time.

Superior Mechanical Performance Features

■ Simple fuse-link installation—even with gloved hands. The carefully proportioned flipper can be readily held in place while the large, easy-to-grasp cable clamping bolt is being tightened.

■ Easy fuse-tube insertion (and removal). Careful steering or manipulation is not required to hang the tube in the cutout, or to remove it. The fuse-tube lower ferrule can be hookstick-engaged either by its large, accessible lifting ring or its equally accessible hookstick keyhole. Both offer secure control of the fuse tube under all conditions. Wide, conspicuous “ears” on the hinge engage the fuse-tube lower ferrule, making tube insertion simple.

■ Superb alignment when closing—from any angle and under adverse conditions of light and weather. Again, careful steering or manipulation of the fuse tube is not required. In the first stage of closing, when the tube is slowly pivoted up to an angle less than 90 degrees from the closed position, the fuse tube is restrained from tilting left or right by broad guiding surfaces at the hinge. When the tube is slammed into the upper contact, it is further controlled by the Loadbuster attachment hooks.

At the end of the closing stroke, the fuse-tube cap wipes in and seats squarely in the detent-type latch which, unlike so-called “positive” latches, won’t release due to rebounding.

■ No fuse-link breakage. During closing, the top of the fuse tube may be subjected to very high impact forces—which can break the fuse link in some cutouts. But the high reduction ratio of the Type XS Cutout flipper lever system allows this impact to be absorbed before it reaches the fuse link. This arrangement does not impair the split-second flip-out of the fuse link when severed by fault current.

(Flip-out is caused by the spring-loaded flipper and does not rely on force of the exhaust or collapse of the toggle joint.)

■ Completely reliable dropout action—regardless of fault-current level. To ensure dropout of the fuse tube after circuit interruption—even after long periods of inactivity—the Type XS Cutout utilizes a high-speed spring-loaded flipper which rapidly withdraws the severed fuse-link cable. The upper-contact springs also contribute to toggle collapse by pushing the fuse tube down and out into the open position.

■ Smooth Loadbuster operation. The Type XS Cutout and Loadbuster were literally “made for each other,” not only electrically but mechanically as well. And the Type XS Cutout’s Loadbuster attachment hooks keep the tool positively anchored until the time of tripping, yet allow for easy removal of Loadbuster should the operating personnel—for any reason—decide not to open the cutout after having attached Loadbuster.

Trunnion pocket—secures tube in hinge during closing Flipper—gives high-speed terminal separation, quick cable flip-out, and (in conjunction with the toggle joint) reduces transmission of forces to fuse link during closing

Fuse tube—features MultiWind™-liner that’s virtually impervious to water ingress. Special UV-resistant finish assures long life. Models also available with disconnect blade

Rugged attachment hooks—for Loadbuster— guide tube during closing

Upper contacts—silver-to-silver;

stainless-steel spring provides high contact pressure

One-piece channel—heavy galvanized steel (which is also used for inserts, hangers, and structural bolts and nuts)

Sturdy ferrules—cast red brass. Pinned to top and bottom of tube for permanent alignment.

Either the large, accessible lifting ring or the key-hole (not visible in photo) may be engaged with a hookstick for secure control of fuse tube during fuse-tube installation or removal

Toggle joint—assures reliable dropout after operation

Lower contacts (not visible)— silver-to-silver; provide dual current path, independent of hinge pivot. Stainless-steel backup springs prevent arcing when tube rises in hinge during recoil

Trunnion—high-strength cast bronze, silver plated. Surfaces around trunnion bear on broad hinge surfaces to keep tube in alignment during closing

Parallel-groove connector—tin-plated cast red brass. For ease of conductor connection, accommodates two conductors of unlike size in a single connector (lower connector can be placed in either the vertical or horizontal configuration). Other styles of connectors are also available

Catalog Number 89021R10-D. Extra-Heavy-Duty Overhead—Pole-Top Style, rated 14.4 kV nominal, 15 kV maximum, 110 kV BIL, 100 amperes continuous, 10,000 amperes interrupting, RMS, asymmetrical kV maximum, 110 kV BIL, 100 amperes continuous, 10,000 amperes interrupting, RMS, asymmetrical (12,000 amperes single shot), 8¹⁄₂ inches (216 mm) minimum leakage distance to ground.

Catalog Number Suffix “-D” provides for the inclusion of parallel-groove connectors each accommodating No. 6 solid (13.3 mm2) through No. 2 stranded (44.4 mm2) copper or aluminum in one groove; No. 2 solid (33.6 mm2) through 250 kc mil (168 mm2) stranded copper or aluminum, or 4/0 ACSR (161 mm2) in the other groove.

internal operating spring is charged.

At a predetermined point in Loadbuster’s opening stroke, its internal trigger trips, the charged operating spring is released, the internal contacts are separated, and the circuit is positively interrupted. The only sound is that of Loadbuster tripping.

Circuit interruption is independent of the speed at which the Loadbuster tool is operated. All that is required is a smooth operating stroke . . . without hesitation, without jerking . . . until the tool is

Loadbuster is first attached to a universal pole at least six feet long. It is then positioned across the front of the Type XS Cutout, with the Loadbuster anchor hung on the attachment hook on the far side of the cutout.

The pull-ring of the fuse tube or disconnect blade is engaged with Loadbuster’s pull-ring hook and held fast with Loadbuster’s pull-ring latch. As the universal pole is pulled downward with a firm, steady stroke, and as Loadbuster is extended to its maximum length, the cutout is opened and the current is diverted through Loadbuster—at the same time Loadbuster’s

1. ATTACH: Reach across the front of the cutout and attach Loadbuster’s anchor to the attachment hook on the far side of the cutout, and then engage its pull-ring with Loadbuster’s pull-ring hook. Loadbuster’s pull-ring latch prevents inadvertent disengagement of the cutout pull-ring and Loadbuster’s pull-ring hook.

2. PULL: A firm, steady downward pull on Loadbuster—to its maximum extended length—opens the cutout in the normal manner as the current is diverted through Loadbuster. At a predetermined point in the opening stroke, Loadbuster trips, breaking the circuit positively.

3. REMOVE: Loadbuster is disengaged by first removing its anchor from the cutout attachment hook. Then, with the blade in the open position, Loadbuster is removed from the pull-ring with a simple ‘‘roll-off” motion.

With Loadbuster, S&C’s Portable Loadbreak Tool extended to its maximum length. The resetting latch retains the tool in the open position for removal from the cutout—and until released to reset Loadbuster for its next operation.

And resetting Loadbuster is easy, too. Merely release the resetting latch and firmly close the extended tool to its fully telescoped position. It’s that simple.

For detailed information on Loadbuster, S&C’s portable loadbreak tool, see S&C Descriptive Bulletin 811-30.

Catalog Number 89021R10-D▲ Extra- Heavy-Duty Overhead—Pole-Top Style, rated 14.4 kV nominal, 15 kV maximum, 110 kV BIL, 100 amperes continuous, 10,000 amperes interrupting, RMS, asymmetrical, 81/2 inches (216 mm) minimum leakage distance to ground.

Catalog Number 89072R11-D▲ Ultra- Heavy-Duty Overhead—Pole-Top Style, rated 25 kV nominal, 27 kV maximum, 125 kV BIL, 200 amperes continuous, 10,000 amperes interrupting, RMS, asymmetrical, 11 inches (279 mm) minimum leakage distance to ground.

Styles

▲ Catalog Number Suffix “-D” provides for the inclusion of parallel-groove connectors each accommodating No. 6 solid (13.3 mm2) through No. 2 stranded (44.4 mm2) copper or aluminum in one groove; No. 2 solid (33.6 mm2) through 250 kc mil (168 mm2) stranded copper or aluminum, or 4/0 ACSR (161 mm2) in the other groove.

Catalog Number 89253R10-D▲ Disconnect, Overhead—Pole-Top Style, rated 25 kV nominal, 27 kV maximum, 150 kV BIL, 300 amperes continuous, 26 inches (660 mm) minimum leakage distance to ground.

★ Catalog Number Suffix “-M” provides for the inclusion of eyebolt connectors each accommodating one conductor ranging in size from No. 8 solid (8.4 mm2) through 250 kc mil (168 mm2) stranded copper or aluminum, or 4/0 ACSR (161 mm2).

▼ This cutout may also be applied on 26.4-kV through 34.5-kV systems for protection of single-phase-to-neutral circuits (lines or transformers) only, and grounded-wye connected capacitor banks in solidly-grounded-neutral (multigrounded-neutral) systems—where the cutout’s 17-inch (432 mm) leakage distance to ground meets user’s requirements.

◆ Approximate fuse-tube length, top of fuse-tube cap to bottom of fuse tube: 14¾ inches (375 mm).

▲ Catalog Number Suffix “-D” provides for the inclusion of parallel-groove connectors each accommodating No. 6 solid (13.3 mm2) through No. 2 stranded (44.4 mm2) copper or aluminum in one groove; No. 2 solid (33.6 mm2) through 250 kc mil (168 mm2) stranded copper or aluminum, or 4/0 ACSR (161 mm2) in the other groove.

Catalog Number 89042R10-M★ Extra-Heavy- Duty Overhead—Pole-Top Style, rated 25 kV▼ nominal, 27 kV maximum, 150 kV BIL, 100 amperes continuous, 8,000 amperes interrupting, RMS, asymmetrical, 17 inches (432 mm) minimum leakage distance to ground.◆

Descriptive Bulletin 351-30 October 4, 2010©

Offices Worldwide ■ www.sandc.com

Padmount Solid Dielectric Switchgear Catalog

Company Profile Since 1905, G&W Electric has helped energize the world with innovative power system solutions. With the introduction of the first disconnecting cable terminating device, G&W began to build a reputation for engineering custom solutions to meet the needs of system designers. Solutions which today have extended far beyond cable accessory products and into the latest in load and fault interrupting switchgear, reclosers, system protection equipment and distribution automation.

Headquarters G&W headquarters is located in Bolingbrook, IL, USA, a suburb of Chicago. G&W also has manufacturing facilities or sales offices in China, Mexico, Canada, India, Singapore and Brazil. G&W covers the globe with product installations and sales representation in over 100 countries and all seven continents.

p G&W headquarters in Bolingbrook, IL USA

G & W E L E C T R I C P A G E 2

G&W Manufacturing Facility

G&W Sales Office

G&W Electric Facilities:

G&W Electric Co. Headquarters (Bolingbrook, IL, USA)

G&W China (Shanghai)

G&W Canada (Mississauga, Ontario)

G&W Mexico (San Luis Potosí)

G&W do Brasil (Salvador)

G&W sales office (Dubai)

G&W sales office (Delhi, India)

G&W sales office (Singapore)

Manufacturer’s Brass and Aluminum Foundry (Blue Island, IL, USA)

Transmission and Distribution Cable Accessories

Solid Dielectric Underground Distribution Switchgear

SF6 Underground Distribution Switchgear

Single and Three Phase Solid Dielectric Reclosers

System Protection Equipment

System Automation and Smart Grid Solutions

G&W Product Overview

Over 110 Years Serving our Markets

G & W E L E C T R I C P A G E 3

G & W E L E C T R I C P A G E 4

Table of Contents

Technology

Solid Dielectric Insulation

Trident with SafeVu

Multi-way Trident Solid Dielectric Switch Overview

Multi-way Three Phase Front Access

Three Phase Load Break and Three Phase Tripping (PLS-FA)

Multi-way Three Phase Front/Back Access

Three Phase Load Break and Three Phase Tripping (PLS-FB)

Two-way Trident Solid Dielectric Switch Overview

Two-way Three Phase Front Access and Front/Back Access

Components for Three Phase Switches

Overcurrent Protection Options

Single Phase

Single Phase Load Break and Fault Interrupting

G & W E L E C T R I C P A G E 5

Technology

What is solid dielectric insulation?

G&W’s solid dielectric insulation is a field proven epoxy which is used to insulate the high voltage connections of a vacuum switch. The load break and fault interrupting vacuum bottle and bushing conductors are fully over mold-ed creating a single phase module. Each module is then coated with a semi-conductive paint creating a continuous grounding surface for a truly dead front design. For three phase switches, three modules are combined together to create one way of the switch.

Each module can also include an integral current trans-former fully protected by the solid dielectric epoxy. This ensures that the transformer is impervious to environmen-tal conditions and insulated from extreme temperatures.

G&W’s molding expertise allows for various options includ-ing 200A bushing wells or 600A apparatus bushings. The rugged epoxy surface minimizes the force required for re-moving elbow connections compared to rubber-to-rubber junctions. Different module orientations are available which permit cable entry from the front, back, or bottom of the unit.

The solid dielectric insulations and vacuum bottle combi-nation make the Trident switchgear suitable for wet and corrosive environments, vertical or horizontal mounting and use in any altitude.

Trident switches are available with the SafeVu™ option. These switches include an innovative visible break feature built into the switch, which eliminates the need to remove elbows or use externally mounted components to provide a visible open.

The SafeVu operating handle is operable via hook stick or rope rigging, making it ideal for subsurface applications where space or safety practices prevent the operator from entering the vault to create a visible break.

Description The visible break is achieved with a blade type switch incorporated within the solid dielectric module. The blade is in series with the vacuum interrupter and provides a clear visible open. The blade is easily visible through a viewing window molded as an integral part of each module.

p Close up of integrated visible break in the open position

Drive rod

Vacuum bottle

Encapsulated current transformer

When you need visible break... Trident with SafeVu™ p Internal components are shown outside the module as reference.

G & W E L E C T R I C P A G E 6

Front Access

Front Access

Front Access Trident Switches provide a solution for environments where space or aesthetics are critical factors:

• Single Side Entry – There are only doors on one side of the pad mount enclosure which means the enclosure can be placed close to a structure

clude inverted designs (bushings towards the top) or bus-tie options.

Multi-way Trident Solid Dielectric Switches

G & W E L E C T R I C P A G E 7

Front/Back Access

Front/Back Access

Front/Back Access Trident Switches provide a compact foot print in a traditional switch design:

• Two Side Entry – With two entry points, one side of the switch can be designated Line (Source) and the other Load to simplify operations

• Compact Foot print – The Front/Back switches can be designed to fit on existing or pre-manufac-tured pads to simplify installation

G & W E L E C T R I C P A G E 8 p Trident PLS Switch Series

Trident solid dielectric insulated switches provide the total life cycle cost and operational benefits of fuseless, electronically controlled, resettable overcurrent protection, with the safety and maintenance benefits of an environmentally friendly dead-front design.

The Trident utilizes G&W’s time proven, submersible epoxy insulation to fully encapsulate load and fault interrupting vacuum interrupters. This solid dielectric insulation eliminates the degradation of dielectric integrity commonly associated with oil and air insulated switchgear.

PLS Switch Series The Trident PLS Series is available in two through six way configurations, in any combination of three phase load break switch ways and three phase fault interrupter ways.

The fault interrupter utilizes a trip-free mechanism, which provides interruption independent of the operating handle when closing into a fault. Viewing windows provide visible indication of the contact position.

Applications Trident load and fault interrupting combination switches provide a direct replacement for power fused air and vac-uum-in-oil switchgear. Some ideal applications include:

Transformer and Motor Protection — The three phase trip feature and high continuous current make the PLS switches ideal for protecting three phase motors and transformer loads.

Loop Switching — Standard 600A loop switching is accomplished using field proven vacuum switching and solid dielectric insulation. Switching through 630A pro-vides up to 12.5kA symmetric fault protection using reset-table, electronically controlled vacuum interrupters. The vacuum interrupters also function as load break switches.

Access Options — Trident switches are available in a Front Access design, with operating handles and bush-ings on the same side of the switch, and a Front/Back Access design, with operating handles and bushings on both sides of the switch.

Additional Features Visible Break — The load break and three phase fault interrupter ways are available with G&W’s SafeVu feature, which provides an integrated visible break disconnect switch in series with the vacuum interrupter. This elimi-nates the need to remove elbows or use externally mount-ed linkage systems to provide a visible open. Switches equipped with the SafeVu feature incorporate redundant mechanical interlocks to ensure the load break switch is open prior to the operation of the visible break switch.

Testing Trident switches are designed and tested to applicable standards including IEEE C37.74 (IEEE C37.71 and C37.72), IEEE 386, IEC 60265, IEEE 592, and IEEE C57.12.28. All fault interrupter devices have passed IEEE C37.60. Trident switches are RUS accepted.

Fully encapsulated current transformers provide power and sensing for G&W’s Vacuum Interrupter controls. The controls emulate the most common time current curves (TCC) for power fuses, mechanical relays, and fuse links.

Control options include Ground Fault (Phase Imbalance), Time Delays, and Inrush Restraint (Cold Load Pickup).

G & W E L E C T R I C P A G E 9

Features and Benefits

Features Benefits

Epoxy Insulation (No oil or SF6 gas, and dead-front design)

No maintenance or monitoring…