Engineering Design Manual - Loudoun Water

More documents

Recommendations

Info

Table 4 Electrical Resistance Schedule Ductile Iron Pipe Resistances: Class 52 Diameter Resistance Per Foot (Ohm) 4" 0.000069 6" 0.000044 8" 0.000031 10" 0.000024 12" 0.000019 14" 0.000016 16" 0.000013 20" 0.000010 24" 0.000008 30" 0.000006 36" 0.000005 42" 0.000004 48" 0.000003 54" 0.000002 Joint Bond Wire Resistance Size Wire/AWG Resistance Per Foot #2 0.000162 #4 0.000259 Sample lengths Number, Length, Size Resistance 1 18" #2 Bond Wire 0.000243 2 18" #2 Bond Wires 0.0001215 1 18" #4 Bond Wire 0.0003885 2 18" #2 Bond Wires 0.00019425 Theoretical Pipeline Resistance Formula Rtheo=[(Rm) (L) (OD – ID) (Rm) I + (NJ) (Rw) I Nb] Rtheo= Theoretical Resistance for test section L= Total length of pipe tested OD= Outside Diameter of pipe ID= Inside diameter of pipe Rm= Electrical resistance of pipe material (iron or steel) NJ= Number of bonded joints in test section Rw= Electrical resistance of each bond wire Nb= Number of bonds per joint
Table 5 Field Electrical Isolation Test Field Electrical Isolation Test Name of Technician Date Location/Type of Insulator Station Number Voltage to Ground Front Side Backside VG On VG Off VG On VG Off VG Frontside Current Drain Test Current Frontside VG Backside Current Frontside Front Side Description On Back Side Description Off Comments/ Statement of Effectiveness Field Electrical Isolation Test Name of Technician Date Location/Type of Insulator Station Number Voltage to Ground Front Side Backside VG On VG Off VG On VG Off VG Frontside Current Drain Test Current Frontside VG Backside Current Frontside Front Side Description On Back Side Description Off Comments/ Statement of Effectiveness Field Electrical Isolation Test Name of Technician Date Location/Type of Insulator Station Number Voltage to Ground Front Side Backside VG On VG Off VG On VG Off VG Frontside Current Drain Test Current Frontside VG Backside Current Frontside Front Side Description On Back Side Description Off Comments/ Statement of Effectiveness
Page 1:
Engineering Design Manual September
Page 5 and 6:
TABLE OF CONTENTS PAGE Chapter 1: L
Page 7 and 8:
TABLE OF CONTENTS PAGE Chapter 4: W
Page 9 and 10:
TABLE OF CONTENTS PAGE Chapter 7: C
Page 11 and 12:
TABLE OF CONTENTS PAGE L. Controls
Page 13 and 14:
Chapter 1: Loudoun Water’s Role C
Page 15 and 16:
Chapter 1: Loudoun Water’s Role A
Page 17 and 18:
Chapter 1: Loudoun Water’s Role T
Page 19 and 20:
Chapter 1: Loudoun Water’s Role 1
Page 21 and 22:
Chapter 1: Loudoun Water’s Role c
Page 23 and 24:
Chapter 1: Loudoun Water’s Role S
Page 25 and 26:
Chapter 1: Loudoun Water’s Role F
Page 27 and 28:
Chapter 2: Administration 2.1 Exten
Page 29 and 30:
Chapter 2: Administration Developed
Page 31 and 32:
Chapter 2: Administration C. Protec
Page 33 and 34:
Chapter 2: Administration B. Bond R
Page 35 and 36:
Chapter 3: Application and Plan Pre
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Chapter 4: Water Distribution Chapt
Page 45 and 46:
Chapter 4: Water Distribution Resid
Page 47 and 48:
Chapter 4: Water Distribution deten
Page 49 and 50:
Chapter 4: Water Distribution d. Wi
Page 51 and 52:
Chapter 4: Water Distribution Figur
Page 53 and 54:
Chapter 4: Water Distribution 5. Co
Page 55 and 56:
Chapter 4: Water Distribution 14. L
Page 57 and 58:
Chapter 4: Water Distribution B. Me
Page 59 and 60:
Chapter 4: Water Distribution D. Cr
Page 61 and 62:
Chapter 4: Water Distribution 7. Pi
Page 63:
Chapter 4: Water Distribution 3. Wh
Page 66 and 67:
Chapter 5: Wastewater Collection 2.
Page 68 and 69:
Chapter 5: Wastewater Collection mo
Page 70 and 71:
Chapter 5: Wastewater Collection B.
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
Chapter 5: Wastewater Collection is
Page 78 and 79:
Chapter 5: Wastewater Collection C.
Page 80 and 81:
Chapter 5: Wastewater Collection Pr
Page 82 and 83:
Chapter 5: Wastewater Collection Ma
Page 84 and 85:
Page 87 and 88:
Chapter 6: Reclaimed Water Chapter
Page 89 and 90:
Chapter 6: Reclaimed Water 5. Adjoi
Page 91 and 92:
Chapter 6: Reclaimed Water 13. Valv
Page 93 and 94:
Chapter 6: Reclaimed Water 2. Provi
Page 95 and 96:
Chapter 6: Reclaimed Water B. Reuse
Page 97 and 98:
Chapter 6: Reclaimed Water 6.6 Cros
Page 99 and 100:
Chapter 6: Reclaimed Water A. Excav
Page 101:
Chapter 6: Reclaimed Water 2. All l
Page 104 and 105:
Chapter 7: Community Water Systems
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
Page 118 and 119:
Page 120 and 121:
Chapter 8: Community Wastewater Sys
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
Page 130 and 131:
Page 132 and 133:
Page 134 and 135:
Page 136 and 137:
Page 139 and 140:
Chapter 9: Sewage Pumping Stations
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171:
Appendix A Appendix A: Application
Page 175 and 176: Checklist for Construction Plans PR
Page 177: Sewer - Plan View 1st sub. 2nd sub.
Page 180 and 181: Item Description Quantity Unit Unit
Page 183: Appendix B Appendix B: Wastewater C
Page 186 and 187: Sanitary Sewer Minimum Core Separat
Page 189 and 190: I. Introduction The Loudoun County
Page 191 and 192: C. Approval The easement plat and d
Page 193: Appendix D Appendix D: Community Sy
Page 196 and 197: Community Systems Design Review Pro
Page 198 and 199: Community Systems Design Review Pro
Page 200 and 201: Community Systems Project Initiatio
Page 202 and 203: Community Systems Construction Proc
Page 204 and 205: Community Systems Construction Proc
Page 206 and 207: Community Systems Preconstruction C
Page 209 and 210: I. Corrosion Control All storage ta
Page 211 and 212: i) The depths of soil samples colle
Page 213 and 214: Class 2 pipelines in moderately cor
Page 215 and 216: with cable cutters. Remove the insu
Page 217 and 218: 4. Pipeline station numbers for wir
Page 219 and 220: a. name of the Corrosion Technician
Page 221 and 222: voltmeter with a test lead. Obtain
Page 223 and 224: Table 1 Cathodic Protection Test Da
Page 225: Table 3 Linear Continuity Calculati
Page 229: Appendix F Appendix F: Construction
show all

Engineering Design Manual - Loudoun Water

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?