pole guying bracing

POLE GUYING & BRACING

Overhead Distribution Construction Standards

PROPRIETARY MATERIAL

OHIndex 500.doc

INDEX


ISSUE DATE: 11-13-08

REV. DATE:

APPROVAL: D.Poore

i

COMPATIBLE UNITS TITLE/DESCRIPTION PAGE NO.

Instructional Guide 501-502

GW, GW2 Sidewalk Guy 503

G3 – G7 Down Guying 504

G33 – G75 Double Down Guying 505

GH3 – GH7 Overhead Guying 506

GPH Overhead Guy to Self-Supporting Stub Pole 507

GTT Temporary Tangent 12kV Pole Brace Near Trench 508

GBP Butt Plate Bracing 510

GGB Stabilizing Backfill 511

GPAH Hand Digging 512

GK1 – GK4 Pole Key Bracing 513

G35G – G45G Push Pole Bracing 514

G30T – G45T Temporary Wood Pole Bracing 515

GC4, GC5 Stub Pole Bracing 516

GC6 Guy Guard Stub 517

G3H – GPLH7 Down Guys with Pole Bands 518

GG – GP2 Primary, Secondary, & Pedestrian Guy Guards 519

A108 – A120 Corrosion Resistant Anchor & Rod 522

A108HD – A120HD Hand Dig 523

AL8 Log Anchors 524

AG Grouted Rock Anchors 525

AR Surface Rock Anchors 526

Ungrounded Insulated Guys 550 – 551

Miscellaneous Guying Standards 552

Transmission with Distribution Underbuild with Span Guys 553

Transmission with Distribution Underbuild with Span Guys (Failed)

554

Transmission Deadend with Distribution Underbuild at 90° 555


OHIndex 500.doc



ISSUE DATE: 11-13-08

REV. DATE:

APPROVAL: D.Poore

INDEX


ii

COMPATIBLE UNITS TITLE/DESCRIPTION PAGE NO.

Transmission Deadend with Distribution Underbuild at 90° 556

Transmission Deadend with Distribution Underbuild Continuing On

557

Transmission Deadend with Distribution Underbuild Continuing On (Failed)

558

Distribution, Vertical Construction 559

Distribution, Vertical Construction (Failed) 560

Distribution Double Deadend with Riser 561

Distribution Double Deadend with Riser (Failed) 562

With Distribution Secondary 563

With Distribution Secondary (Failed) 564

501


POLE GUYING AND BRACING

INSTRUCTIONAL GUIDE

DATE: 12-09-71

REV. NO.: 3

REV. DATE: 6-03-99

APPROVAL: WEL

PROPRIETARY MATERIAL 501

POLE GUYING AND BRACING INSTRUCTIONAL GUIDE

For installation or removal of guys, anchors and bracing devices for overhead distribution poles.

Compatible Unit Coding for “G” and “A” Section Guys Guys have been coded according to size and type using a “G” prefix. Special purpose guys and attachments have also been appropriately coded. Single, double, overhead and sidewalk guys are available with individual Compatible Unit code numbers. Primary, secondary and pedestrian guy guards are also available.

Anchors Standard anchors and anchor/rod combinations are coded with an “A” prefix. The numbers and letters in the code designate the sizes and descriptions of the anchoring devices.

Guy/Anchor Combinations Guy and anchor combinations are available by combining the individual numbers to form one Compatible Unit number. This applies to all the recommended single and double down guy combinations with the various types of anchors.

Example: G5 A108 (Compatible Unit no.)

One 5/16” down guy with guy guard One 10” anchor with 8 ft. rod

Bottom guy Top guy with guy guard

G3 5 A108 (Compatible Unit no.)

One 3/8” and one 5/16” down guy with guy guard One 10” anchor with 8 ft. rod

Compatible Unit Available Guy & Anchor Combinations

LG3 A108 GW A108 GW2 A108 G5 A108 AG AR G3 A108 AG AR G7 A108 A120 AG AR G55 A108 AG AR G53 A108 A120 AG AR G57 A108 A120 AG AR G35 A108 A120 AG AR G33 A108 A120 AG AR G37 A108 A120 AR G75 A108 A120 AG AR G73 A108 A120 AR G3H A120 AR G7H A120 AR

502

DATE: 12-09-71

REV. NO.: 2

REV. DATE: 6-03-99

APPROVAL: WEL


INSTRUCTIONAL GUIDE


502 PROPRIETARY MATERIAL

INSTRUCTIONAL GUIDE

Special Pole Bracing

Special types of pole bracing are provided in this section and have a "G" prefix. Tile pole foundations, butt plate bracing, pole key bracing, push pole bracing, temporary pole bracing and stub pole bracing have been assigned Compatible Unit numbers to allow a variety of pole bracing applications. The numbers are explained in detail on the standard drawings.

Grid Sketch Application

Guy, anchor and pole bracing codes are to be entered in the Miscellaneous section of the grid sketch (lines 13 thru 18) under the point number which represents the pole they are to be installed on.

DATE:

REV. DATE:

APPROVAL:


8512E268.DGN OVERHEAD DISTRIBUTION

CONSTRUCTION STANDARDS09/30/71

06/12/07

6"

6" 6"

7’- 0" MIN.

SPACING REQ’D IF 2 GUY RODS

ARE INSTALLED


DOWN GUYING

504 G3 - G7

R

3/8" DOWN GUY

5/16" DOWN GUY

7/16" DOWN GUY

G3

G5

G7

CLAMP, AUTOMATIC

GRIP, WRAP

18" RAKE

6"

19’- 6"

10’

* IF ATTACHMENT HEIGHT IS GREATER THAN 19’- 6"

THIS TENSION MUST BE REDUCED.

FOR ASSISTANCE IF THIS TENSION MUST BE

EXCEEDED, OR ATTACHMENT HEIGHT IS GREATER.

SEE STRUCTURE STANDARD

AS SPECIFIED

30’ CLASS 1

(CUT 10’ OFF TOP OF

A 40’ CLASS 1)

HOLE SIZE AND

BACKFILL MATERIAL

ARE THE SAME AS

GGB

GPH

MAXIMUM TENSION 2500 LBS.

5/16" OVERHEAD GUY

*

R

APPROVAL:B.PRIEST

ISSUE DATE:

REV. REFORMAT

REV. DATE: 01/26/10

8512E217.DGN

OVERHEAD GUY TO SELF-


SUPPORTING STUB POLE

507

08/04/93

Overhead Distribution

Construction Standards

CONTACT ELECTRIC SYSTEM PLANNING & ENGINEERING


30"

NORMAL SETTING

DEPTH OR AS

SPECIFIED

GGB

1. THIS COMPATIBLE UNIT INCLUDES 2 TONS OF AGGREGATE SLURRY BACKFILL (ASB) 00-0100

STABILIZING BACKFILLREV. DATE:

APPROVAL:


8512E120.DGNOVERHEAD DISTRIBUTION

CONSTRUCTION STANDARDS 01/06/81

04/01/09

R

REV.

FOR POLES WITH UNGUYED ANGLED SLACK SPANS OR ANY UNBALANCED LOAD

OR POLES SET IN LOOSE OR SWAMPY, MUDDY SOIL.

511GGB

POLE SHOULD HAVE A 6 INCH RAKE OPPOSITE THE STRAIN OF CONDUCTOR.

ISSUE DATE:

4’-

6"M

IN.

C

G35G

G40G

G45G

- 35 FT. CLASS 5 POLE - DISTRIBUION


(BUT NOT GREATER THAN HEIGHT)


(HE

IGH

T, A

S R

EQ

UIR

ED

)

(LEAD, AS REQUIRED)

REV. DATE:


8512E44.DGN OVERHEAD DISTRIBUTION

CONSTRUCTION STANDARDS12/09/71

10/22/08

RPOLE GUYING AND BRACING

PUSH POLE BRACING

G35G-G45G514

APPROVAL:W.LARAMIE

ISSUE DATE:

REV. DATE:

APPROVAL:


8512E258.DGNOVERHEAD DISTRIBUTION

CONSTRUCTION STANDARDS

519

11/04/71

11/05/08


PRIMARY, SECONDARY AND PEDESTRIAN GUY GUARDS

GG - GP2

GP

GP1

GP2

GN

GG

PRIMARY GUY STRAIN

INSULATOR

PRIMARY

CONDUCTOR

SECONDARY

CONDUCTOR

SECONDARY GUY GUARD

MAY BE USED ON

ALL GUY SIZES.

PEDESTRIAN GUY GUARD

MAY BE USED ON

ALL GUY SIZES.

CUT GUY WIRE EXCESS AS SHORT

AS POSSIBLE, BEND TO ALLOW

GUY GUARD TO COVER AS SHOWN.

NOTE:

PRIMARY GUY STRAIN INSULATOR AND SECONDARY

GUY GUARD SHOULD BE PLACED SO THAT

CONDUCTORS WILL PASS AS CLOSE TO

MID-WAY AS POSSIBLE.

R

GROUNDED GUY

GROUNDED GUY

GUY HORIZONTAL CLEARANCE MUST

BE MINIMUM 6" FROM CONDUCTOR,

GUY MARKER IS USED TO PROVIDE

PHYSICAL PROTECTION WHEN

CLEARANCE > 6"

MINIMUM HORIZONTAL TO INSULATOR

IS 4.5" FOR 12KV SYSTEM. 7" FOR

22KV SYSTEM.

REV. ADDED NOTES AS INDICATED

FOR 5/16" GUY

FOR 3/8" GUY

FOR 7/16" GUY

UNGROUNDED GUY

(SEE "UNGROUNDED INSULATED GUYS" PAGE 550)

ISSUE DATE:

W.LARAMIE


2). Reponsibilities

REV. DATE:RR

REDRAWN ON CAD

ISSUE DATE:

ESE will maintain program procedures (review NESC for changes), advise and train personnel who

design and build facilites with guys and provide inspection services if requested by responsible

divisions. The Responsible Divisions will assure that designs properly show how guys and guy

insulators are used and where to install them. The line crews that construct the guying must be sure

that the guys are properly grounded or if ungrounded the insulated sections are properly installed.

8512E359.DGN

05/09/07

10/13/97

All guys shall be effectively grounded unless insulated per item No. 5.

b) Down guy - a down guy consists of a wire running from an attachment on a pole to a

rod and anchor installed in the ground.

c) Span or head guy - a span guy consists of a wire running from an attachment on a pole to an

adjacent pole opposing the strain from the line conductors. Insulated guy rod - a device

installed in a guy to maintain adequate electrical clearances, provide safe working space for linemen,

reduce nuisance linetripping from guy contacts with line conductors and protect the public against

possible exposure to an energized guy.

a) Guy - a supporting member fastened between a fixed support and a pole to provide an opposing

force to balance conductor tension(s)acting on the pole.

3). Definitions:

4). Grounding Guy Requirements

To be effectively grounded, guys shall be electrically connected to one or more of the following:

a) Grounded metallic supporting structure (grounded steel pole)

b) An effective ground on a nonmetallic supporting structure (pole ground)

c) A line conductor that has at least four (4) grounds in each mile of line (system neutral)

APPROVAL: WEL

550


UNGROUNDED INSULATED GUYS



Ungrounded (Insulated) Guys

1). Objectives

This procedure and examples on the following pages will:

Define guying

Provide guidelines for the installation of ungrounded (insulated) guys

R

10/13/97

REV. DATE: 06/12/07

ISSUE DATE:

8511E71.DGN

The placement of insulator(s) in an ungrounded guy is intended to protect the public against a possible

exposure to an energized guy. The proper location of an insulator in an ungrounded guy may be

determined as follows:

5). Insulated Guy Rods

APPROVAL: WEL


UNGROUNDED INSULATED GUYS

551



the insulated guy must comply with the following:

All efforts to ground the guy wire must be exhausted prior to installation of the insulated guy section. When

the guy to energized part clearance cannot be obtained,

a). Insulators shall be so placed that if the guy is broken below the insulator or any guy is contacted by an

energized conductor or part, the voltage will not be transferred to other facilities on the structure(s) or below

8’ above ground.

b). Insulators shall be so placed that in case any guy sags down upon another, the insulators will not

become ineffective.

Head guy - Terminated to stub pole, no other electrical facilities adjacent/on the stub pole or between

the guyed and stub pole: The horizontal plane defined by the lowest energized facility shall pass through

the center or upper half of the lowest guy insulator.A check shall be made to determine, under a broken

guy condition (at stub pole), guy hanging vertically, that requirements 5a and 5b are met.

Head guy - Terminated to stub pole, with other electrical facilities adjacent/on the stub pole or between the

guyed and stub pole: In addition to the above check, a check shall be made, under a broken guy condition

(at the guyed pole), guy hanging vertically, that requirements 5a and 5b are met.

Down guy -The horizontal plane defined by the lowest energized facility shall pass through the center

or upper half of the lowest guy insulator.A facility is considered energized if it is at a service voltage

(120 volts) or higher. A check shall be made to determine, under a broken guy condition (at anchor eye),

guy hanging vertically, that requirements 5a and 5b are met.

GROUNDING

CONNECTION AT POLE BANDGROUNDING

CONNECTION AT GUY ATTACHMENT

GROUNDING

CONNECTION AT NEUTRAL

INSULATED GUY ROD

NOTE:

PRIMARY & SECONDARY GUY STRAIN INSULATOR

SHOULD BE PLACED SO THAT CONDUCTORS WILL

PASS AS CLOSE TO MID-WAY AS POSSIBLE.

REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


8512E426.DGN

10/13/97

05/07/07

ANY ENERGIZED CONDUCTOR

WEL




MISCELLANEOUS GUYING STANDARDS

552

552

N

REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


8512E426.DGN

10/13/97

06/21/07

CENTER OR UPPER HALF OF

INSULATED ROD MUST BE IN

HORIZONTAL PLANE PROJECTED

FROM LIVE PART OF DEVICE.

WEL

553


TRANSMISSION WITH DISTRIBUTION

UNDERBUILD WITH SPAN GUYS



IF SECONDARY IS ON THIS POLE THE ENTIRE

GUY STRAND SHALL BE INSULATED ROD

LEAVING ENOUGH WIRE FOR ADJUSTMENT.

N

REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


8512E426.DGN

10/13/97

06/12/07

NO VOLTAGE TRANSFERRED TO OTHER

FACILITIES ON STRUCTURES.

>8’-

>8’-

NO VOLTAGE TRANSFERRED

BELOW 8’.

WEL

554



554


TRANSMISSION WITH DISTRIBUTION

UNDERBUILD WITH SPAN GUYS (FAILED)

NTS

N

REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


8512E426.DGN

10/13/97

05/07/07

O





WEL



555

555


TRANSMISSION DEAD END WITH DISTRIBUTION

UNDERBUILD AT 90

N

REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


8512E426.DGN

10/13/97

05/07/07

O




BELOW 8’.

>8’-

WEL

556

556


Construction StandardsPOLE GUYING & BRACING


UNDERBUILD AT 90 (FAILED)

N

REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


8512E426.DGN

10/13/97

05/07/07





WEL

557

557



UNDERBUILD CONTINUING ON



REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


8512E426.DGN

10/13/97

05/07/07




BELOW 8’.

N

>8’-

558

558



UNDERBUILD CONTINUING ON (FAILED)



N




REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


8512E426.DGN

10/13/97

06/07/07


WEL

559


DISTRIBUTION, VERTICAL CONSTRUCTION



N

>8’-

REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


8512E426.DGN

10/13/97

05/07/07




BELOW 8’.

WEL

560

560


DISTRIBUTION, VERTICAL CONSTRUCTION

(FAILED)



N

REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


8512E426.DGN

10/13/97

05/07/07





WEL

561


DISTRIBUTION DOUBLE DEAD END

WITH RISER



N

REV. DATE:

APPROVAL:

RR

REDRAWN ON CAD

ISSUE DATE:


>8’-

8512E426.DGN

10/13/97

05/07/07




BELOW 8’.

WEL

562

562


DISTRIBUTION DOUBLE DEAD END

WITH RISER (FAILED)



REV. DATE:

APPROVAL:

RR

ISSUE DATE:


8512E426.DGN

02/09/07

05/07/07

WEL





563


WITH DISTRIBUTION SECONDARY



REV. DATE:

APPROVAL:

RR

ISSUE DATE:


8512E426.DGN

02/09/07




BELOW 8’.

05/07/07

WEL

>8’-

564




WITH DISTRIBUTION SECONDARY (FAILED)

pole guying bracing

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