SAG10 v3 Manual
To jump directly to a chapter simply click on a chapter title within the index. 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 New Features of Alcoa Sag10 for Windows Version 3.0 ......................................................3 Features of Alcoa Sag10 for Windows Version 2.0 ..............................................................4 Features of Alcoa Sag10 for Windows Version 1.1...............................................................5 Differences Between SAG10 for Windows and SAG10 for DOS..........................................6 Features of Current & Previous Versions..............................................................................7 History ...................................................................................................................................8 License Agreement Information ............................................................................................8 Installation .............................................................................................................................9 1.8.1 Minimum Equipment Required:.............................................................................9 1.8.2 Installation - Single User .......................................................................................9 1.8.3 Installing and Using SAG10 On a Network ...........................................................9 1.8.4 Installation of SAG10 on a Network Server...........................................................9 1.8.5 Installation of SAG10 on a Workstation ................................................................9 1.8.6 Using SAG10 on a Network ..................................................................................10 1.8.7 Printing over a Network .........................................................................................10 1.9 Getting Started with SAG10 ..................................................................................................10 2.1 Entry Screen..........................................................................................................................11 2.2 Main Menu.............................................................................................................................12 2.3 Create/Edit Problem File .......................................................................................................12 2.3.1 Headings ...............................................................................................................12 2.3.2 Conductor Selection..............................................................................................13 2.3.2.1 ADSS Cable ..........................................................................................13 2.3.2.2 OPGW...................................................................................................14 2.3.2.3 ACSS Conductors .................................................................................14 2.3.2.4 Pre-stressing ACSS Conductors...........................................................14 2.3.2.5 Copper Conductors ...............................................................................15 2.3.2.6 Conductor Lookup List ..........................................................................15 2.3.2.8 User Bookmarks ...................................................................................16 2.3.2.9 Add New Conductor to Database..........................................................16 2.3.2.10 View Existing Stress-Strain Chart in Sag10.Pgm Database ...............16 2.3.2.11 Add New Stress-Strain Chart to Sag10.Pgm Database......................16 2.3.2.12 Delete User Added Stress-Strain Chart from Sag10.Pgm Database .17 2.3.3 Loadings Table......................................................................................................17 2.3.4 Ruling Spans .........................................................................................................21 2.3.5 Output Redirection ................................................................................................21 3.1 File Commands (Main Menu)................................................................................................22 3.1.1 File New (Main Menu) ...........................................................................................22 3.1.2 File Open (Main Menu) .........................................................................................22 3.1.3 File Save (Main Menu) ..........................................................................................22 3.1.4 File Save As ..........................................................................................................22 3.1.5 File eXit (Main Menu) ............................................................................................22 3.2 Options ...................................................................................................................................23 3.2.1 Elevated Temperatures, Input (default = unchecked)..........................................23 3.2.2 Elevated Temperatures, Output Strain (default = unchecked).............................23 3.2.2.1 Elevated Temperature Creep................................................................23 3.2.3 Account for Aluminum Compression ....................................................................25 3.2.4 Separate AL & STL Tension .................................................................................25 3.2.5 Tensions Avg Vert (At Supports) Horiz (At Sag) .............................................25 3.2.6 Display Extra Column No % RTS H/W Horz & Vert Sag ..............................25 3.2.7 Units English English-to-Kg Kilogram Newton ..............................................25 3.2.8 NESC K New Old Old (Steel & Cu) ................................................................26 3.2.9 T-2TM Conductor ...................................................................................................26 3.2.10 Attachments to Wire No Marker Balls Cables PLP Spoiler ........................26 3.2.10.1 Marker Balls ........................................................................................26 3.2.10.2 Non-supporting spacer cable, installed after stringing ........................27 3.2.10.3 Non-supporting cable, pre-assembled or lashed ................................28 3.2.10.4 PLP Spoilers .......................................................................................29 3.2.10.5 Estimated Cast Rod Creep ...............................................................29
Chapter 1
Introduction
3.2.10.6 Creep Time at Stress ........................................................................29 3.3 Setup Commands (Main Menu) ............................................................................................29 3.3.1 Setup - Print Setup................................................................................................29 3.3.2 Setup - Page Setup...............................................................................................30 3.3.3 Setup - Fonts.........................................................................................................30 3.4 Run Commands (Main Menu) ...............................................................................................31 3.4.1 Run - Sag & Tension.............................................................................................31 3.4.2 Run - Pause between Spans ................................................................................31 3.4.3 Inclined Spans.......................................................................................................31 3.4.4 Run - Ruling Span Calc.........................................................................................32 3.4.5 Run IEEE738 .....................................................................................................32 3.5 Help for Sag10 ......................................................................................................................32 4.1 Output Screen ........................................................................................................................33 4.1.1 Creep .....................................................................................................................33 4.2 Gallop ....................................................................................................................................34 4.3 Sag Curves ...........................................................................................................................36 4.4 Stringing Sag Tables .............................................................................................................38 4.4.1 Stringing Spans .....................................................................................................38 4.4.2 Stringing Temperatures ........................................................................................38 4.6 Ruling Span Variation............................................................................................................40 4.7 Clash .....................................................................................................................................42 4.8 Vibrec ....................................................................................................................................45 4.9 Output ...................................................................................................................................46
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Introduction
1.1 New Features of Alcoa Sag10 for Windows Version 3.0
Vibration Analysis and Damper Selection Calculations Perform your own Vibration Analysis and Select your own Dampers for ACSR, AAC, AAAC, ACAR, Alumoweld, Steel, OPGW, and ACSS cables. Clash analysis w/graphic solution for ADSS Check loaded & unloaded swing & static clearances between Conductor and ADSS supported on the same structure, for both initial and final state. Conductor suspension insulator string length is taken into consideration. The loading cases, swing angles, horizontal and vertical offsets between the two cables and conductor ADSS clearances are presented in a Report. Graphically view the results in both Tranverse and Longitudinal Views. Graphic views may be saved to a .BMP file for emailing or viewing in other graphic software. Compiled for 32 bit operation for Win2000 Compiled to run with all of the latest Windows 2000 generation operating systems. Support of longer file names. ACSS/TW and BPA TW Conductors The Conductor Database has been expanded to include the ACSS/TW and BPA TW Cables. IEEE 738 Calculations Perform Thermal Rating analysis with IEEE738 calculations. Allow deletion of user created charts The Conductor Selection area has been improved to allow deletion of user created charts Estimated cast rod creep Sag & Tension data may be calculated for either factory Cast or Rolled aluminum rod. Calculation of Creep for varying time periods Creep can now be calculated for time periods greater or less than the 10 year time period that is currently used to calculate final sags & tensions within Sag10. Check to see if your conductor has any additional creep after 20 or 30 years, or use for confirming sag information on a conductor that has been in service for less than 10 years. Save sag curve to .BMP File & Display Catenary Constant Sag Curves can be Saved to a .BMP file, for emailing or viewing in other Graphics software. The Catenary constant is now displayed with the Sag Curve. Help Screens Help Screens have been added to Sag10 for user convenience. Root Failure message explanation When a Sag & Tension run fails due to a Root Failure, an explanation recommends possible solutions to allow proper output. User's manual on CD The entire Sag10 Manual and Appendices will be provided on CD to allow the user ready access to the Instructions. Use of command line parameters when entering Sag10 Command Line parameters may be used to preload a Problem File while initially entering Sag10. Pretensioning of ACSS Conductors A complete set of instructions are provided to allow the user to calculate conductor sags during and after an ACSS Conductor has been pre-stressed. Spoiler Loading on Cable A routine to allow calculation of the loads created by adding PLP spoilers to the cable, and their affect on the Sag & Tension output.
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Introduction
1.2 Features of Alcoa Sag10 for Windows Version 3.0
Adjustment of High Temperature Creep Optional calculations can be performed that account for the effect of aluminum compression at elevated temperature conditions. The program provides default values for `built in aluminum stress', ASTM strand lay ratios and allows user entry of optional values. Adding New Conductors to the Data files The Add new conductors feature has been integrated into the Windows program, making it much easier to use. Data from other conductors may be prompted onto the screen and edited to create a new conductor, or entered as entirely new data. Adding New Stress-Strain Charts The ADD new Stress-Strain charts ( Sag10.Pgm ) feature has been integrated into the Windows program, making it much easier to use. Data from other chart #'s may be prompted onto the screen and edited to create a new chart, or entered with entirely new chart data. Conductor Selection Lookup List It is now possible to find the conductor that you are looking for by scrolling thru a pulldown list. This is especially handy if you do not remember the name and/or stranding of the conductor that you need. Custom Conductor Database A custom conductor database has been created that allows the user to add his favorite conductors to a his own custom list. The user may then use a pulldown menu to select a conductor from his own custom selection list. Copper and Copperweld Conductor Databases Hard drawn Copper and Copperweld Conductor Databases have been added to the list of available conductors. Old NESC K Factor for Copper and Steel The old NESC K factor for copper and steel calculations has been added to allow proper simulation of older NESC calculations. Graphic Display of Galloping Ellipses between 2 Different Structure Types The user may optionally enter different attachment points and insulator types and/or lengths for structures at either end of a galloping span and generate resulting ellipses. Gallop Button for Load Table A Gallop command button has been added to the Load Table area to ensure the Load Table includes the appropriate Load conditions required for calculation of graphic Galloping Ellipses. Medium Ice Load added The new NESC Medium loading condition of 32 Deg F, .25-inch ice, no wind has been added to the Medium Loading Default conditions. Quantity of Conductors Displayed in the Galloping Ellipses The quantity of conductors graphically displayed in the Galloping Ellipses may be varied between 1 and 4 conductors. Ruling Span Calculation Spans within a ruling span can now be entered into a table. The spans within the table can then be calculated for ruling span, saved as a file for future recall and editing, and transferred to the stringing sag tables. Calculation of Total Conductor Length When a list of spans are provided for Stringing Sag Tables, the Total Conductor Catenary Length is calculated for those spans over level ground and for the range of selected stringing temperatures and corresponding horizontal tension (one length for each temperature and tension). The calculated ruling span for those spans may also be displayed. Year 2000 Compliant Alcoa SAG10TM Manual Page 4
Chapter 1
Introduction
The output files are dated with a 4 digit year that will allow dated output for the year 2000 and beyond. ADSS Cable - Variable Coefficient of Thermal Expansion The Calculations for ADSS cables now allow the user to enter the Cofficient of Thermal Expansion as a variable rather than as a fixed value. ADSS Cable - Three Moduli of Elasticity: Initial, Final, 10 Years Creep The Calculations for ADSS cables now allow the user to enter three moduli of elasticity, that will exactly characterize the stress-strain chart for each individual AFL-ADSS cable. Grid Lines for Sag Curves Grid lines may optionally be added to the Sag Curve Graphic output, to allow easier alignment of the curve with the users background grid. Printing of Inclined Spans The Inclined Span output may now be printed via a print command in the Inclined Span Calculation area. Stringing Sag Table Output in Inches The Stringing Sag Table output may be shown in Inches only, rather than Feet & Inches. Calculation of Ruling Span Variations Each span within a ruling span has a variation from the ruling span sag & tension caused by change in span length. Ruling Span Variation calculates the amount of that variation.
1.3 Features of Alcoa Sag10 for Windows Version 1.1
ADSS, OPGW, & ACSS Cable calculations Calculates Sag & Tension, Stringing Sag Tables, Clipping Offsets, Catenary Curve and Galloping Ellipses for Alcoa Fujikura Ltd.'s (AFL) All Dieletric Self Supporting Cables (ADSS), Optical Ground Wire & Aluminum Conductor Steel Supported. New Options for Formatting of the Output Horizontal and Vertical Sag may optionally be displayed as separate columns in lieu of Resultant Sag. This allows calculation of horizontal conductor blowout and actual ground clearance sag under wind load conditions. Adjustment of Rime Ice density Allows the calculated Rime Ice density to be selected by the user rather than always using a preset rime ice density of 37 lb/ft^3. Spacer Cable Calculations Input and output for spacer cable were modified for greater conformity with Hendrix Wire & Cable calculation methods. NESC K Factor may be applied to all cables or only the messenger cable at the users discretion. New Metric Features Galloping calculations and graphic display of the galloping ellipses is now available for metric calculations. The Marker Ball and Spacer calculations have been improved for metric calculations. British Sag Demo A Demo version of Sag10 is available with the British conductors of Centipede and Zebra. SAG10 is a reg. TM of Alcoa Fujikura Ltd. Windows is a reg. TM of Microsoft Corp.
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1.4 Differences Between SAG10 for Windows and SAG10 for DOS
1-Create File is replaced with selecting each of the 4 command buttons on the Main Menu. 2-Retrieve File has been replaced by File - Open (Main Menu) 3-Modify Menu is replaced with selecting each of the 4 command buttons on the Main Menu. 4-Default Parameters is divided into several areas: Options (Main Menu) contains the majority of the previous defaults. Setup - Page Setup (Main Menu) contains the options for output display of headings, with many other choices added. Output to Screen, Printer or File is now located on the Main Menu for convenience, and always defaults to screen output. Run - Sag & Tension (Main Menu) contains a menu selection for Stringing Sag Tables. This selection is now made after viewing the sag & tension output. 5-Save Problem File has been replaced by File - Save or File - Save As (Main Menu) 6-Process Problem File has been replaced by Run - Sag & Tension (Main Menu) 7-Other Calculations, Inclined Spans has been replaced by Run - Inclined Spans (Main Menu) 7-Other Calculations, Offset Clipping has been replaced by Offset Clipping accessed from the Output Screen ( Run - Sag & Tension ) 8-Quit has been replaced by File - eXit (Main Menu) Printing and plotting of the Galloping Ellipses and Sag Curves is now done from within SAG10 or by switching between applications to another graphics program of choice, rather than exiting to SagPlot. This is supplemented by the DXF file option. For individual data entry boxes, the TAB key is used to move from entry box to entry box, rather than the ENTER key used previously. Each box is entered in the type over mode as a highlighted cell. If an ARROW, HOME or END key are pressed, the entry box switches to the edit mode. For data tables, standard spreadsheet table commands are used. The TAB, ENTER, or ARROW keys are used to move from cell to cell. Each cell is entered in the type over mode. The F2 key will highlight the cell and initiate editing of the cell. A row is inserted with Insert, a row is deleted with Delete. The Table is cleared with Clear. Selecting a conductor is now an interactive process, where a conductor may be selected and reviewed as many times as the user wishes prior to leaving the conductor selection area. After picking the Conductor Selection (Main Menu) command, enter the conductor type, and codeword or other required data such as size and stranding. Pressing the Lookup Wire Data command will search the database for the required data and display it on the form. The Lookup Wire Data command will then become disabled until a modification is made in the conductor request. If Main Menu or OK is picked and the requested entry data has been modified, the program will lookup the new request prior to exiting the form. The data output is displayed in a sizable window with scrolling capabilities. If Run - Pause between Spans (Main Menu) is checked, the spans will display one at a time, to allow for reviewing Galloping, Sag Curves, Stringing Sag Tables, and/or Clipping Offsets. If Run - Pause between Spans (Main Menu) is unchecked, all of the requested spans will calculate and display in the sizable window at one time.
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Chapter 1 1.5 Features of Current & Previous Versions
Introduction
Alcoa's SAG10TM Computer Program* designed for use with the IBM PC contains: · Alcoa Graphic Method · Sag and Tension with Creep · Elevated Temperature Creep · Inclined Span Calculation · Stringing Sag Tables · Offset Clipping Processing Highlights include: · User Friendly · Menu Driven · Screen Oriented Editing · Use of enhanced video and keyboard function Problem features are: · Create, Save, and Open Problem File · Built-in Temperature and Loadings · Choice of Bare Wire Limits · Modify Defaults and Problem File · Automatic Creep Check · Single Entry Increments Temperature-Spans · Automatic Conductor Data · Automatic Stress-Strain Chart Selection · Problem Output Designates Inputs · Graphic Output Galloping Ellipses and Sag Curves · Calculation of Marker Ball and Non-supporting Cable additions The processing and problem features work together to make an easy to use self-prompting software package. Data furnished includes: · Stress-Strain Coefficients · Conductor Data Base (Area, Dia., Wgt., RTS, SS Chart No.) ACSR's: Standard & British /AW /TW /SD AAC ......British AAAC .....British ACAR AW-Alumoweld ST-Steel Multiplex Wires Covered Line Wires T-2 Conductors ADSS cable OPGW cable ACSS ACSS / AW CopperWeld CopperWeld - Copper Hard drawn Copper User Bookmarks * Copyright 1986 Aluminum Company of America
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Chapter 1 1.6 History
Introduction
The Alcoa Graphic Method of sag-tension calculations was developed in 1926 by H. H. Rodee. Analysis of the stress-strain behavior of the complete conductor and its component parts form the basis for the method. It is applicable for composite conductors (ACSR's, OPGW's) or those consisting of one metal - aluminum, copper, or steel. SAG10 is an enhancement of the mainframe Alcoa SAGTEN program available since 1963. The enhancements include conductor data bases, for accurate and up-to-date data retrieval of most cataloged conductors and overhead ground wires; elevated temperature creep, an important consideration today when electrical demand taxes old designs; inclined span calculations, at times a perplexing mathematical problem; offset clipping, a solution to a stringing problem; and use of screen editing and keyboard functions inherent to the IBM-PC. In 1992, SAG10 Version 5 and SAGPLOT Version 1 were released. In 1994, SAG10 for Windows was released. In 1997, Windows was updated with Version 1.1. In 1998, Windows was updated with Version 2.0. In 2001, Windows was updated with Version 3.0. The new features are listed on page 1 of this manual.
1.7 License Agreement Information
The software program is furnished to the original purchaser under the license agreement written. The software may be used or copied only in accordance with the terms of the agreement. It is against the law to copy the software on any medium except as specifically allowed in the license agreement. The only warranty on this software is on the CD-ROM, which Alcoa warrants to be free from defects in materials and workmanship. If within 90 days from date of purchase the defective CD-ROM is returned, a replacement will be made at no charge. Also within 90 days of purchase technical questions regarding operation of the programs will be answered by calling Tech Support at 1-800-866-7385. Definitions as they apply to SAG10 licensing: SITE-a physical location, a headquarters building where many users conduct every day business. A SITE is not various divisions within a city, operating district, or company wide operation with multiple subsidiaries. Up to 25 user's is permitted. LAN-local area network which is specific to a site. It is not a network covering a company's operating divisions within a geographic area. A minimum of three concurrent SAG10 users is required. Concurrent User-software is available that monitors and controls the number of users of software at any one time. CLIENT SERVER-a hardware/software host centrally located to serve multiple locations. Mergers of utilities to form huge companies has fostered the client server operation as a means of sharing expensive software. A minimum of six concurrent SAG10 users is required. To purchase or upgrade SAG10 contact customer service at 1-800-925-4815. Technical Support is offered for the lifetime of the current version and can be obtained at the 3 locations listed below. For the most prompt responses, it is recommended that you email directly or email from the Website with a complete explanation of the problem or information required. Email: Support @ Sag10.com Website: www.Sag10.com/support.htm Phone: 800-866-7385
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Chapter 1 1.8 Installation
SAG10 Package Contents: 1. Installation Guide and License Agreement 2. Installation CD-ROM 3. Registration User ID and Password Card
Introduction
1.8.1 Minimum Equipment Required:
1. IBM compatible Pentium 90 or greater with at least 16 MB of RAM memory. 2. Microsoft Windows 95 or higher. 3. CD-Rom drive 4. Hard disk with at least 20 MB of free space (5 MB used by program for file storage). 5. VGA or better monitor
1.8.2 Installation - Single User
1.Uninstall all previous versions of SAG10. 2.Close any open applications running in Windows. 3. Insert SAG10 CD-ROM into the CD-ROM drive. 4.If the Startup Menu does not launch automatically locate the file "StartUpMenu.exe" on the CD-ROM and open the file. 5.From the Sag10 Startup Menu, pick "Install Sag10 3.0". 6.Make sure all other programs are not running, then click "OK". 7.When setup is complete, choose the "OK" button to return to "Startup Menu". 8.If the user is upgrading SAG10, and has previously modified any of the conductor data files, copy the required data files from the previous SAG10 directory to the new Sag10w directory using Windows Explorer. If a previous user has used ADD.EXE to modify the conductor charts, then copy the stress-strain chart file from the previous SAG10 directory to the default "Sag10w" directory, or your custom SAG10v 3.0 directory location, using Windows Explorer. If the user has NOT modified these files, then do NOT copy them. 9. Any additional instructions that were too late to put in this manual will be stored in a file named README.1ST. The instructions may be viewed from the CD-Rom Menu, Windows Notepad, or any text editor or word processor. 10. Continue on to "Getting Started with SAG10" below.
1.8.3 Installing and Using SAG10 On a Network
On a network, many users can share the SAG10 program and data files. Once SAG10 is set up on the network, the program can be run from the network server, or it can be installed onto the hard disks of individual workstations. This document assumes that you know how to use network software to connect to network drives and how to find files stored on network computers. Note: Every SAG10 user must either have a SAG10 Single User License, or the user's company must have a LAN/Client Server license or a Site License. Before you set up SAG10 The network must be operational, and you must have read-write access to the network directory in which you want to install SAG10. For more information, see your network software documentation. Setting up SAG10 on a network is a two-step process. You first install SAG10 on the network server. Then you set up the workstations, either by setting up the workstations to run SAG10 from the server or by installing SAG10 on each workstation's hard disk. Note: Each workstation should have at least 16 MB of RAM in order to run the SAG10 program.
1.8.4 Installation of SAG10 on a Network Server
1. Follow steps 1 thru 5 for 1.8.2 Installation - Single User, with the exception that the drive is likely to some letter higher than C:, such as R:\Sag10Net3\. Although the SAG10 program directory on the server (the directory containing Sag10w3.EXE) can be either readwrite or read-only, you should make it read-only after installing SAG10 to prevent users from unintentionally overwriting files. For more information, see your operating system documentation.
1.8.5 Installation of SAG10 on a Workstation
Alcoa SAG10TM Manual Page 9
Chapter 1
Introduction
You can install SAG10 onto local workstations so that users run the program from the network server, or you can install so that users run the program from their local workstation's hard drive. You perform the following procedures from the local workstation on which you are installing SAG10. 1. Follow steps 1 thru 5 for 1.8.2 Installation - Single User at each workstation licensed to use SAG10. This will place the appropriate files in the \Windows\System directories for each workstation. 2a. If the intention of the user is to access SAG10 from his own hard disk, and use the network only for printing and plotting and perhaps sharing common problem files, then the installation is complete. -or2b. If the intention of the user is to access SAG10 from the network drive, then perform the steps below. 3. In Windows Explorer, Pick Start, Programs and highlight Sag10 from the list. 4. Click on the right mouse button, select Properties, Shortcut. 5. Change the Target: from the name of the local drive to the name of the server drive, such as from C:\Program Files\Sag10w3\Sag10w3.EXE to R:\SAG10Net\Sag10w3.EXE if C is the local drive and R is the server drive. 6. Change the Start In: from the name of the local drive to the name of the server drive, such as from C:\Program Files\Sag10w3 to R:\Sag10Net (or similar). 7. Select OK to close the Properties form. 8. Use Windows Explorer to delete the SAG10 files in the local drive, such as DELETE C:\Program Files\Sag10w3\*.*.
1.8.6 Using SAG10 on a Network
Using SAG10 on a network is essentially the same as using SAG10 from a hard disk on an individual computer. On the network, you can make a data file available to other users and allow them to make changes to the file, or you can protect the file from changes. You can use the network server to store and exchange data files between users, and many people can use a printer attached to the network server.
1.8.7 Printing over a Network
For information on setting up printers, see your Windows documentation. The procedures for printing over a network generally are the same as printing procedures for an individual computer. You use the Windows Setup program to set up all printers available to you. Then you choose the Page Setup command on the Setup menu in SAG10 and choose the Printer Setup button to select a printer for use with SAG10 and to change the settings for the active printer. If you have installed more than one printer, when you start SAG10 for the first time, make sure you select the printer you will be using for your documents. If you select one printer when you format a document and a different printer when you print the document, some fonts, point sizes, and other character formatting options may not be available when you print. Note: Your network software may require you to issue a system command to make a network printer available to your computer. For specific procedures for your network, see your network software documentation. Special Note for Bates TLCADD users: Refer to Appendix, "Notes for Bates Spotting Program" for installation and additional information.
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1.9 Getting Started with SAG10
1. To begin using SAG10, click on the Alcoa SAG10 icon: 2. The SAG10 Entry Screen appears with information on licensing of SAG10. Read the information. If you have met the terms of the agreement, press OK to continue to the SAG10 Main Menu 3. Refer to Chapter 2 for more information on each Command and Menu option. TLCADD is a registered trademark of LineSoft
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Chapter 2
Introduction 2.1 Entry Screen
Double clicking on the SAG10 icon loads the program and the entry screen shown in Fig. 2-1 appears. The user has 30 days in which to register the program by going online to the Alcoa website: www.sag10.com/ register.htm. The user is asked to complete the registration form for company information and will then receive an email with his registration number to enter into Sag10. If an error message appears, refer to the Appendix on Error Messages".
Fig. 2-1
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Chapter 2
Main Menu - Pulldown Menus 2.2 Main Menu
After selecting OK at the Entry Screen, the following menu in Fig. 2-2 appears. New Problem Files are created, or existing Problem Files are edited, directly from the Main Menu. The 4 command buttons are used to access the required data entry areas discussed below.
2.3 Create/Edit Problem File
To create a new or edit an existing Problem file, select each of the command buttons: Headings, Conductor Selection, Loadings Table and Ruling SPans from the Main Menu. Each of the commands is discussed separately below.
2.3.1 Headings
The first step is to select the Headings command. You will be prompted to enter two lines of heading. Each line of the heading may be up to 72 characters. These 2 lines will appear at the top of the first page of the sag & tension output, and optionally, at the top of each additional page and for Stringing Sag Tables and Clipping Offsets.
Fig.2-2
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Chapter 2
Main Menu - Pulldown Menus
2.3.2 Conductor Selection
Selecting the Conductor Selection (Main Menu) command displays the form shown in Fig. 2-3. The conductor selections are broken down into 24 categories. Select the appropriate category for your conductor type. If none of these have the conductor needed, select 15- Other. After a conductor type is selected, the user will be prompted for additional information, which will vary, depending on which conductor type is picked. In most cases, the user may just enter the Codeword, and the rest of the necessary conductor data will be automatically searched and entered from the SAG10 database. If Select by: Size/Strand option is picked, a different prompt will appear in lieu of the Codeword prompt. For 2- ACSR British, 13Multiplex and 14- Covered Line Wire, the only valid option is to enter the correct codeword.
Fig.2-3
When the Lookup Wire Data command is picked, the program will search the data base for the conductor characteristics and stress-strain Chart #, and display the values for Area, Diameter, Weight, Rated Tensile Strength (RTS), and stress-strain Chart #. The User may then optionally modify either the Weight or Chart #. A listing of charts commonly used is shown in Appendix, "List of Stress - Strain Charts". If it is necessary to use the 15- Other option, it is possible to enter that information permanently into the SAG10 conductor database by using the Add to Database command. Conductor data may also be viewed thru this utility. Refer to the Section on User Bookmarks for more information.
2.3.2.1 ADSS Cable
Sag10 calculations now include AFL's All Dielectric Self Supporting (ADSS) cable. AFL (Alcoa Fujikura Ltd) does not recommend attempting to use Sag10 to calculate data for dielectric cable from other manufacturers. In order to perform ADSS calculations, first choose Conductor Selection from the Main Menu. After selecting 16- ADSS, the displayed form will appear as shown in Fig. 2-4. Type in the proper values requested on the form. These values may be obtained from AFL for your particular cable. The MRCL stands for Maximum Rated Conductor Limit and RTS stand for Rated Tensile Strength, or Rated Breaking Strength. It is important that both MRCL and RTS values be accurate in order to allow stringing the cable to the proper design tensions. Sag10 obtains the allowed Fig. 2-4 percentage of RTS by dividing the MRCL by the RTS. This percentage is often 50%, but may range from 45% to 63+%, depending on the particular cable. The allowable percentage is increasing as new designs are developed. It is important that Conductor Selection be set to ADSS prior to entering the Load Table data, in order to initiate the proper Load Table limits. The ADSS input now prompts for the Thermal Coefficient of Expansion and for 3 Moduli: Initial, 10 Years Creep, Final, so the Alcoa SAG10TM Manual Page 13
Chapter 2
Main Menu - Pulldown Menus
program can simulate the exact stress-strain chart for that particular design. The proper values for these parameters can also be obtained from your AFL representative.
2.3.2.2 OPGW
Sag10 calculations now include AFL's Optical Ground Wire cables. AFL does not recommend attempting to use Sag10 to calculate data for OPGW cable from other manufacturers. Selecting 17- OPGW will display the form shown in Fig. 2-5 or 2-6. Selecting by: Catalog #: allows the user to type in AFL's catalog #, such as GW0815. Selecting by: Size/Strand allows the user to enter data by cable designation. If the cable does not have alloy stranding, enter the single leading value into the first entry cell as shown in Fig. 2-6.
Fig. 2-5
2.3.2.3 ACSS Conductors
The selection of conductor databases now include Aluminum Conductor, Steel Supported (ACSS). This is the conductor formerly called SSAC by Reynolds Metal Co. Both ACSS/AW and ACSS/TW cables are also included.
2.3.2.4 Pre-stressing ACSS Conductors
Alcoa has been asked to provide some guidance for the pretensioning of ACSS conductors. These instructions were put together for that purpose. Be sure to also read the note below instructions (1)-(20): 1) Create or Open a Problem File. Only one ruling span may be run at a time. 2) Pick Load Table from the Main Menu 3) Pick a Load Zone from one of the 5 available at the bottom of the form, or enter your own values. 4) Enter an additional row with a stringing temperature in the 1st column. 5) Tab over and enter an increased weight in the 3rd column for wind as a Negative number, generally about 4 times that of the conductor weight. 6) Tab over and enter a 1 in the 5th column for Code. 7) Pick OK to return to the Main menu. 8) Pick Run, Sag & tension calcs from the Main Menu. 9) Note the initial tension for the common point in the Sag & Tension output and return to the Loading Table and adjust the negative value in the Wind column 3 if more or less pretension is desired. Repeat steps (5), (7), (8) & (9) until the desired Pretension is achieved in the Sag & Tension output. 10) From the Sag & Tension Data Menu, pick Stringing 11) Enter spans and Pick OK to continue. 12) Pick Final Condition. 13) For the Starting Temperature, enter the same temperature that was used in (4) above. Leave Increment and Ending Temperature as 0. Pick OK to continue. 14) Record the single temperature Stringing Sag data. 15) Return to the Load Table and replace the stringing temperature with another stringing temperature. 16) Tab over to the 3rd column for wind and adjust the value to a smaller negative number for a higher stringing temperature or to a larger negative number for a lower stringing temperature. 17) Pick OK to return to the Main menu. 18) Pick Run, Sag & tension calcs from the Main Menu.
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19) Note the Sag & tension output and Return to the Loading Table, adjusting the negative value in the Wind column 3 until the initial and final values for all of the conditions, other than the stringing temperature common point, match those of the output in step (9) above. 20) Repeat steps (15) thru (19) and steps (10) thru (14) for each stringing temperature. Note: If the user intends to pretension an ACSS conductor, it is important that he consider the following items : a) The structure design engineer must be informed of the additional loads created by pre-stressing so that he can review the entire line for those loads. b) The design engineer needs to review in particular the additional horizontal and vertical loads applied to the structures adjacent to the tensioner and puller during the stringing process. The engineer should design and specify the temporary guy attachment locations for these structures, and specify minimum level ground distances allowed between the puller and tensioner and the adjacent structures. c) The line crew manager needs to be informed of the additional loads as it may be necessary to use larger pullers and tensioners than would be used otherwise. Cable pulling may require different pulling clamps than normally used. Additional time may be required during stringing, and will require throwing lines over the conductor to pull the conductor back into a uniform sag. The line crew may need to budget for these additional costs.
2.3.2.5 Copper Conductors
The selection of conductor databases now include separate databases for Copperweld cables, Copperweld-Copper cables and Hard Drawn (HD) Copper.
2.3.2.6 Conductor Lookup List
It is now possible to scroll thru a list of available conductors for each conductor type, and thereby select the appropriate conductor without having to type the name or remember the exact spelling. In order to select a conductor from the lookup list, first select the proper conductor type from the left column. Then click the arrow on the right side of the dropdown box to display a list of cables as shown in Fig. 27. Select the applicable conductor by highlighting and or by doubleclicking the conductor. Then press Lookup Wire Data to fill in the conductor data boxes. In order to save the time of scrolling thru the conductor list for future lookups, refer to Section 2.3.2.7 in order to add the conductor to set a bookmark for the conductor. 2.3.2.7 Sort Selection List Fig. 2-7 A check box has been provided just below the Optional Conductor Selection List box. Checking the box will sort the conductor databases in alphabetical order for conductor types 1 to 9, 13, 14, 18, and 19. This is helpful if you wish to lookup the conductor by ordered by conductor name, rather than the normal order by conductor size.
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2.3.2.8 User Bookmarks
You can now use bookmarks to store a list of the most common conductors used. The list of favorite conductors are then available for quick recall when setting up future problem files. The steps to do this are: 1. Select a conductor and then press Lookup Wire Data to fill in the conductor data boxes. 2. Press the Add to Database button to display the red form shown in Fig. 2-8. 3. Press the Add Bookmark button. The conductor is added to the User Bookmarks. 4. Press the EXit button to return to the Conductor Selection area.
2.3.2.9 Add New Conductor to Database
This replaces the previous DOS based ADD.EXE program, simplifying the process of adding new conductors to the existing databases. In order to add a new conductor, follow the steps below: 1. If the conductor is similar to an existing conductor, select that conductor and then press Lookup Wire Data to fill in the conductor data boxes. Otherwise, proceed to step 2. 2. Press the Edit Data checkbox. This allows the user to enter new data or edit existing data in the data boxes provided. 3. Press the Add to Database button shown in Fig. 2-7 to display the red form shown in Fig. 2-8. 4. Press the Add to Type N button, where N equals the conductor type requested. The conductor is added to the database for that conductor type. 5. You may also bookmark the new conductor at this time by pressing the Add Bookmark button. The conductor is added to the User Bookmarks. 6. Press the EXit button to return to the Conductor Selection area. Fig. 2-8
2.3.2.10 View Existing StressStrain Chart in Sag10.Pgm Database
This replaces the previous DOS based ADD.EXE program, simplifying the process of viewing existing stress-strain charts in the Sag10.Pgm database. In order to view an existing chart, follow the steps below: 1. Press the New S-S Chart button shown in Fig. 2-7. This will display the Form shown in Fig. 2-9. 2. Click on the Chart # lookup box to present a list of existing chart #'s. Select a Chart #. 3. Press the View Chart button. The
Fig. 2-9 stress-strain data for that chart will fill in the data boxes.
2.3.2.11 Add New Stress-Strain Chart to Sag10.Pgm Database
This replaces the previous DOS based ADD.EXE program, simplifying the process of adding new stress-strain charts to the existing Sag10.Pgm database. In order to add a new chart, follow the steps below: 1. Press the New S-S Chart button shown in Fig. 2-7. This will display the Form shown in Fig. 2-9. 2. Fill in all of the data boxes provided in the form. The required data may be obtained thru your AFL representative. Alcoa SAG10TM Manual Page 16
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3. Press the Add Chart button. The data will be added to the Sag10.Pgm database. Warning: If the chart already exists in Sag10.Pgm, the earlier data will be retrieved rather than the most recent entry.
2.3.2.12 Delete User Added Stress-Strain Chart from Sag10.Pgm Database
This new feature allows the user to remove any Stress-Strain Charts from Sag10.Pgm that he has added in himself and would now like to remove for various reasons. In order to delete a chart, follow the steps below: 1. Click on the Chart # lookup box to present a list of existing chart #'s. Select a Chart #. 2. Press the View Chart button. The stress-strain data for that chart will fill in the data boxes. 3. Press the Delete Chart button. The data will be removed from the Sag10.Pgm database. If the chart is an core AFL chart, the Delete Chart button will show as disabled.
2.3.3 Loadings Table
Selecting the Loadings Table command displays the form shown in Fig. 2-10. The table is ready for individual inputs or automatic loadings. An initial record entry of 60 F, 0, 0, 0, 2 is automatically generated. This is the standard check for creep. Any entry with a zero value for the tension entry and a 2 for code entry, will allow the program to check for creep. If all such entries are removed, creep will not be checked, and incorrect data may result. In such a case, the output also will read "Creep is NOT Considered". If the final sag is controlled by creep, the output will read "Creep IS a Factor." If the final sag is controlled by the ice and wind from one of the load cases, the output will read "Creep is NOT a Factor." Fig. 2-10 shows a typical Fig. 2-10 load case after additional loads have been added. If metric units have been selected in the Options section, units will appear as Deg C, mm Ice, 2 2 Kg/M or N/M wind, Kg or N tension. The command buttons at the bottom left of the form will generate various standard load conditions. Selecting any of them will generate the Design Limits form shown in Fig. 2-11 & Fig. 2-12. The following pages list the load conditions generated for each of the standard Loadings and Design Limit options possible. The load condition limits differ for ADSS in that both Alcoa and NESC limits generate a maximum limit of 50% of RTS. Clear Loads will clear all loads from the table and generate a creep condition of 60 F, 0, 0, 0, 2. Insert Row will insert one row at the current cursor location. Delete Row will delete one row at the current cursor location. Auto Temp Incr. prompts for a Temperature to increment. When the down arrow is used in the 1st column, any blank rows will be incremented by the entered amount. Save Load File allows you to store your loadings, and reuse them for creating or editing other problem files. You will be prompted for a file name. Enter a file name, using .LOD as the extension. O