N-1Application
7 passages
DESCRIPTION: This project is to rebuild the L-5046 tap at its intersection with L-5017, which is in the Wolfville, Annapolis Valley area. The tap structures and switches at this location were identified as requiring replacement as part of...
AI summary This project involves replacing 9 transmission structures and installing a new switch (83V-504) at the L-5046 tap in Wolfville, Annapolis Valley. The work is divided into two phases, aiming to enhance operational flexibility through on-load switching and a permanent bypass. Upgrades will improve transmission system reliability and isolation efficiency.
Why do this project? The equipment at the L-5046 and L-5017 tap, as well as the 83V-504 switch are degraded. The assessed condition of these assets, as determined through NS Power's transmission line inspection program, was found to be det...
AI summary The L-5046 and L-5017 tap equipment, along with the 83V-504 switch, are degraded and require replacement to prevent outages affecting 5,500 customers. Upgrading the switch will enable live line operations, reducing disruptions during maintenance and future construction.
Why do this project now? This work has been prioritized based on the condition of the transmission line assets as determined through NS Power's transmission line inspection program results, as well as the criticality of the line to the ove...
AI summary This project is urgently needed to replace deteriorating transmission line structures and switchgear serving 5,500 customers, preventing unplanned outages and enhancing system reliability. Design changes aim to eliminate outage risks during switching and address vehicular access issues, emphasizing the criticality of timely infrastructure upgrades.
Why do this project this way? The existing location of the switches has posed serious safety issues when accessing the location during winter conditions, impeding access that is required for operation and maintenance of the existing switch...
AI summary The project relocates switches to a roadside location to address winter access safety issues, enabling live line switching and eliminating customer outages during maintenance. The original site was deemed infeasible due to accessibility challenges, prompting the shift to a more efficient location for maintenance and faster restoration.
Reason for Variance The increase of $350,789 from the 2026 ACE Plan subsequent submittal estimate of $1,207,318 is due to additional grounding requirements for the installation of the new 83V-504 switch. Due to its proposed location, adequ...
AI summary The increase of $350,789 in the 2026 ACE Plan is due to additional grounding requirements and the replacement of 5 transmission structures for the installation of the new 83V-504 switch, leading to higher material and construction costs.
Document No: XXX-XX-XXXX-XXXX Transmission Line Infrastructure Required fields: Estimate Classification Project Name: 83V L-5017 and L-5046 Rebuild Tap Started or Preliminary Class 5 Class 4 Class 3 Class 2 Class 1 Maturity Level of Projec...
AI summary The document outlines the details of a transmission line infrastructure project, including its scope, capacity, location, requirements, technology selection, strategy, and planning. It provides information on project maturity levels, classification of estimates, and various deliverables required for the project.
CI C0059483 Attachment 1 Page 1 of 1 Subtype Structure ID Inspection Date Inspection Method Structure Status Recommendations Scheduled Work Order ID Field Priority Comments created_date last_edited_date 1 L5017-057 23-Apr-07 Foot Pass swit...
AI summary Inspection records for structure L5017-057 show multiple inspections from 2007 to 2023, with a recent failure in April 2023 requiring removal by 2026. Issues included deteriorating materials, slack guy wires, and melted jumpers. The structure was marked 'Fail' with a work order scheduled for 2026.
N-3NSPI (NSEB) RIR 2 to 3 - Redacted
22 passages
Assumptions Scope of work assumptions as per the NSPI request are: - NSPI Standard design criteria applies (NSPI Transmission Line Design Standard Rev02). - Standard checks of all wires/structures for strength, clearances, swing, etc. will...
AI summary The assumptions outline the scope of work for NSPI's transmission line project, including design criteria, standard checks, modeling using M4 structures, and exclusion of a new switch. Inputs such as LiDAR data and PLS-model will be provided.
Deliverables The following items are required as deliverables for this project scope: - IFR 30% Design Package - Design Criteria - Structure List, Structure Spotting (to confirm locations with stream and wetlands) - Preliminary PLS-CADD mo...
AI summary The deliverables outline required design packages (30% and 60% IFR) for a project, including PLS-CADD models for specific transmission lines, structure lists, and design criteria to ensure compliance with environmental and engineering standards.
REDACTED C0059483 NSEB IR-3 Attachment 1 Page 3 of 6 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Project: L5017 & L5046 Modifications - Plan/Profile Drawings - Structure Drawings - Structure List and Staking Table - Insulator Assembly Draw...
AI summary The document lists technical deliverables for project modifications (L5017 & L5046), including drawings, design packages, and materials with NSPI item numbers. It specifies requirements for signed engineering documents and file formats.
Table 1: Engineering Stages Schedule Stages Date Purchase Order Issue Date TBD Engineering Kickoff Meeting PO Issue Date + 5 Days2 IFR 30% Design Package June 13th, 2025 IFR 60% Design Package July 25th, 2025 IFC 100% Design Package August...
AI summary Table 1 outlines the engineering stages schedule, including key milestones such as the purchase order issue date, engineering kickoff meeting, and the dates for the 30%, 60%, and 100% design packages.
5.0 Assumptions/Exclusions The following clarifications apply to this proposal: - NSPI to provide file names/naming convention for the package - NSPI to provide the Phasing Diagrams - NSPI to provide the details/drawings for structure fram...
AI summary The text outlines assumptions and exclusions in a proposal, specifying NSPI's responsibilities for providing documentation, infrastructure details, and clarifying that foundation design hours are not allocated due to soil conditions. A new switch on Melanson Road is excluded from the scope of work.
Background CBCL completed a line clearance assessment of L-5017 in 2016/17 and has access to the survey data and photos collected at that time and the final clearance report authored by Mark Chapman. NS Property Online indicates the line e...
AI summary CBCL conducted a line clearance assessment for L-5017 in 2016/17, with survey data and a report by Mark Chapman. The line easement was established in 1963, with a 66-foot right-of-way (ROW) allowing tree cutting within 50 feet of the centerline.
REDACTED C0059483 NSEB IR-3 Attachment 2 Page 3 of 12 REDACTED (CONFIDENTIAL INFORMATION REMOVED) • TSA1403: OHSW Double Dead-end • TSA1405: OHSW Tangent • TSA1408: OHSW Double Dead-end Tangent It is assumed that no angle structures are re...
AI summary The document discusses the line section structures TSA1403 (OHSW Double Dead-end), TSA1405 (OHSW Tangent), and TSA1408 (OHSW Double Dead-end Tangent), noting that no angle structures are required based on CBCL's current information for this line section.
Switch Structure NSPI transmission standards will be used as the basis for essentially all scope elements outlined in this SOW. However, specifically related to the switch structure's connections and steel components, CBCL will apply the N...
AI summary NSPI transmission standards will guide most scope elements, but CBCL will apply NS Power standards for switch connections and steel components without full analysis, assuming adequacy. Dimensional compatibility checks will be performed, with modifications requiring NSPI engineer input. No fence is included for switch site protection, though a pullover area for vehicles is noted.
Civil Design CBCL will develop the general arrangement of the site including mass grading, parking area layout, and equipment layout. We will establish design grades for the site, considering cut and fill quantities, based on the topograph...
AI summary CBCL will develop the site's general arrangement, including grading, parking layout, and equipment placement, using NSPI's topographic data and LiDAR information. Grading and drainage will be confined to NSPI's right of way to mitigate downstream impacts.
2. METHODOLOGY CBCL understands that NS Power would like to use a 30/60/90/IFC design framework. CBCL feels this project is small enough to eliminate at least one milestone gate to save time and cost, however we are open to adhering to the...
AI summary CBCL proposes modifying NS Power's 30/60/90/IFC design framework by eliminating a milestone gate to reduce time and costs, while suggesting a site visit for better terrain assessment. A kick-off meeting is planned post-authorization to align stakeholders.
REDACTED C0059483 NSEB IR-3 Attachment 2 Page 4 of 12 REDACTED (CONFIDENTIAL INFORMATION REMOVED) included for any additional topographical survey, however, CBCL is able to provide this service should it be required. CBCL will leverage the...
AI summary CBCL outlines its approach to transmission line design, using PLS-CADD and AutoCAD Civil3D software, while adhering to NS Power standards. A Bill of Materials (BOM) will be generated, with non-standard materials clearly identified. CBCL emphasizes responsibility limitations based on analysis confidence.
3. DELIVERABLES The initial deliverables will be the overall site development plan view, physical plan view for the switch structure, and switch structure general arrangement/elevation drawing followed by the more detailed sections and ass...
AI summary The document outlines deliverables for a project, including site development plans, civil works components, and construction package items. CBCL specifies deliverables based on NSPI standards, with final files provided in PDF and DWG formats. Record drawings are requested for as-built conditions.
Introduction To support the addition of a transmission Right of Way (ROW) switch to 69 kV transmission line L-5017, Nova Scotia Power (NS Power) requires an engineering service provider to create an Issued for Construction (IFC) drawing se...
AI summary Nova Scotia Power (NS Power) requires an engineering service provider to create an Issued for Construction (IFC) drawing set for a new 69 kV transmission ROW switch on line L-5017 in Kings County. The switch will be between structures L-5017-068 and 069, with modifications to structure L5017-070 and a parking area addition for safe operations.
Site Development Drawings Using the results of the Strum survey performed on the proposed site for 83V-504, site development drawings should be completed that incorporate the backfill materials in the ground grid layout, S 083V0 5 400 00 0...
AI summary The text outlines requirements for site development drawings for a project (83V-504), emphasizing integration of backfill materials, switch structure poles, drainage, and a parking area for operations. It specifies alignment with transmission standards (TSA 6000, TSA 6004) and the need to fit within an existing transmission right-of-way (L5017-069).
REDACTED C0059483 NSEB IR-3 Attachment 2 Page 8 of 12 REDACTED (CONFIDENTIAL INFORMATION REMOVED) The drawings created to show site development should include a site development plan, showing a top-down layout of the site. This drawing sho...
AI summary The document outlines requirements for site development drawings, including a top-down site plan (numbered S 083V0 1 203 00 002) and elevation views showing cut/backfill (numbered sequentially starting with S 083V0 1 203 00 003). It notes municipal permits for a parking area adjacent to 83V-504 are not included in the scope of work.
Plan View A plan view should be created showing a top-down view of the equipment on site, including 83V-504, L5017-069, and the site parking area developed as part of the civil IFC package. This drawing should be numbered S 083V0 5 201 00...
AI summary A plan view must be created to illustrate the top-down layout of equipment (83V-504, L5017-069) and the site parking area from the civil IFC package. The drawing is to be numbered S 083V0 5 201 00 001.
Elevation Drawing and Bill of Materials A drawing should be created to show two elevation views taken from plan view S 083V0 5 201 00 001. The first of these elevation views should show 83V-504 and L5017-069 from a view parallel to L5017....
AI summary The text outlines the creation of elevation drawings for two views of a structure, inclusion of grounding connections, and references to NS Power physical standards. It also specifies the compilation of a Bill of Materials for the installation of 83V-504, including conductor size and connection details.
Grounding Layout A grounding layout drawing, showing the layout of the draft ground grid prepared by NS Power should be created. This drawing should be numbered S 083V0 5 400 00 002. Details of the backfill required for this ground grid sh...
AI summary NS Power is required to create a numbered grounding layout drawing (S 083V0 5 400 00 002) for a draft ground grid, incorporating backfill details from their physical standard drawing M205Z-P54. The layout must adhere to technical specifications for grounding infrastructure.
Transmission Package All documents produced as part of the transmission package shall be provided in .DWG and .PDF formats. The documents in this package shall be sealed by a Professional Engineer licensed to practice in Nova Scotia. To ac...
AI summary The Transmission Package outlines requirements for document formats (.DWG, .PDF) and sealing by a Professional Engineer. Structural changes are needed to accommodate new switch 83V-504, including replacing existing transmission structures and adding an Overhead Shield Wire (OHSW) between two points for ground grid connectivity.
The following documents will be provided by NS Power: Document Number Document Name Grounding Standards M205Z-P31 – Sheet 2 Exothermic T Connection: Copperweld M205Z-P35 – Sheet 2 Exothermic Ground Rod Connection: Copperweld M205Z-P36 – Sh...
AI summary NS Power will provide various technical documents related to grounding standards, installation procedures, and physical standards for electrical infrastructure, including exothermic connections and switch installations.
The following documents should be produced by the engineering service provider as part of the completion of this scope of work: Document Number Document Name Civil IFC Package S 083V0 1 203 00 002 Site Development Plan View – 83V-504 S 083...
AI summary The document outlines the engineering service provider's required deliverables for the scope of work, including various drawings and packages such as the Civil IFC Package, Physical IFC Package, and Transmission IFC Package, along with a site visit requirement.
REDACTED C0059483 NSEB IR-3 Attachment 3 Page 1 of 1 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Transmission Workorder Summary Project Identification Description of Work L5017/L5046/83V tap switches Line @L5017 IFC work Stations 20V to 43...
AI summary The document provides a summary of a transmission workorder for Line L5017 IFC work, including project details, labor and materials costs, and estimated timelines. The work involves tap switches and is scheduled for completion in 2026, with a rate period covering Year 7 (Dec 2025 - Nov 2026).