N-1Redacted Work Order 9/2/2010
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14 1 of 6 L431-412 B This option can be marginal during summer peaks 1H-419 Available 1H-405 490/440 490/420 28H-413 B Very similar to 1H-405 104H-431 500/465 L431-233 Metro Center C Combined load can be close to 500 A -load check is recom...
AI summary This document outlines contingency options for electrical systems, including backup feeders, switching devices, and load capacities. Specific options such as 1H-405 and 1H-424 are discussed, along with their associated loads and switching devices. Notes mention potential limitations during summer peaks and the need for load checks.
1H-424 CONTINGENCY OPTIONS Backup feeder 1H-405 Total load [A] 290/320 Switching device 28H-447 Contingency type B Comment 1H-424 load is estimated to be 70 A. 1H-429 CONTINGENCY OPTIONS Backup feeder Split between 2H-412 1H-429 is an expr...
AI summary The document outlines contingency options for various backup feeders, including details about total load, switching devices, contingency types, and comments regarding load estimates and backup limitations during peak times.
Table 5.3 Total Accessories Cable Accessory Feeder Service S 25 - T 96 67 LF 84 15 L 0 67 SA 180 - Total 385 149 Note that the accessories are shown here as three phase devices, therefore for the actual number of single phase units needs t...
AI summary Table 5.3 presents the total number of accessories categorized by type and phase, with a note that single phase units need to be tripled for accurate calculation. The table includes categories such as cable accessories, feeder, and service, with specific quantities for each.
Table 5.7 Theoretical Weight of Aluminum Wire Wire size Diameter [mm] Cross-section [mm2] Weight [kg/km] 750 22 380 1026 500 18 253 683 350 15 177 478 4/0 11.7 107 289 3/0 10.4 85 230 #1 7.4 42 113 Table 5.8 Aluminum Salvage Weight by Feed...
AI summary Table 5.7 provides theoretical weights of aluminum wire for various sizes, while Table 5.8 outlines aluminum salvage weights by feeder and cable size. The note indicates that concentric neutral material is not included in the calculations.
6.1 Description The cable injection option will be calculated for 750 kcmil cable only. The smaller conductor sizes for both feeder and services are considered for replacement. See Table 6.1 for summaries.
AI summary The cable injection option is calculated for 750 kcmil cable only, while smaller conductor sizes are considered for replacement. Table 6.1 provides summaries of these considerations.
Table 6.1 Three phase line to be injected/replaced [m] Feeder Injection Feeder Replacement Service Cable 750 kcmil <750 kcmil Replacement 1H-403 4,250 1,730 1,360 1H-405 1,680 1,910 140 1H-419 3,650 1,130 150 1H-431 2,130 0 550 Total 11,71...
AI summary Table 6.1 outlines the lengths of three-phase line cables to be injected or replaced, along with associated costs and procedures. Feeder injection and replacement involve specific cable sizes and quantities. The process requires de-energized cables and includes labor and testing fees, with a 20-year warranty on injected cables.
6.3 Cable Replacement Part of the Cable Injection Option The cables other than 750 kcmil will be replaced as follows
AI summary This section outlines the replacement of cables other than 750 kcmil as part of the Cable Injection Option.
APPENDIX A – Cable Lengths and Available Ducts (A) 1H-403 – Main Radial 1H to 28H-416 – 1400 m of 750 kcmil From To Available Ducts 1H Substation MH2 9A (A- available), Remove: 243, 246, 247 MH2 MH4 1A MH4 MH5 Removals: 243, 246, 247 MH5 M...
AI summary Appendix A provides detailed information on cable lengths and available ducts for various segments of the electrical distribution system, including main radial and north loop routes, with specific details on locations, cable types, and duct availability.
Note: Due to short cable length, the primary services located in the same with the switch vault or manhole may not be shown in the list.
AI summary The text notes that due to short cable lengths, some primary services located near switch vaults or manholes may not be included in the list provided.
The allocation of the cable accessories below is assumed based on single line diagrams and may not be an exact representation of the actual type or quantity. For accessory legend see 5.2. Splices and Terminations MH# Equip. 1H-403 1H-405 1...
AI summary The text outlines an assumed allocation of cable accessories based on single line diagrams, noting that this may not be an exact representation of the actual type or quantity. It includes a table with various entries related to splices and terminations, as well as references to sections and data.
One three phase separable deadfront splice on the full size feeder cable will require the following materials: # Description NSPI Code QTY Price 1 Basic Shielded Elbow 25 kV 5465-2370 6 $76.87/ea 2 Cable Adapter #750, Compact 5465-0189 6 $...
AI summary The text lists the materials required for a three phase separable deadfront splice on a full size feeder cable, including quantities and prices for each item.