PROJECTS $500K AND OVER FOR 2012

Transcription

1 Page of PROJECTS $00K AND OVER FOR 0 SUSTAINING PORTFOLIO NETWORK SYSTEM Table : Network Projects Estimate Estimated Cost Project Title Number ($ Millions) 0 New Vault Adelaide Street West. 00 New Vault Erskine Avenue/Mt. Pleasant. Richmond/Bay Vault Rebuild (Loc.). 0 Network Unit Replacement (Loc.N0). Vault # Rebu-Bellair/Cum-Hi-Bl NW 0. 0 Peter & King Street Vault Build 0. St. Patrick Street/Queen Street West 0. Network Rebuild Eglinton Avenue East/Lillian (Loc.) 0. Overlea Boulevard/William Morgan Rebuild Vault Roof (0 Gloucester) 0. Total Cost.

2 Page of Portfolio: Network Project Title: Network Vault Adelaide Street West Project Number: 0 Project Year: 0 Estimate Cost: $,, PROJECT DESCRIPTION Objective: The purpose of this project is to rebuild and to relocate the network vault. This project also involves the replacement of PILC cables. In addition, network units will be replaced (i.e., transformer and protector). Lastly, network automation will be installed at this location. 0 Scope: The scope of work for this project is to rebuild a network vault and all the associated cabling work that needs to be carried out, especially PILC cables identified in the vicinity of the project area. It would also involve the installation of two 00kVA transformers with A protectors, one for each transformer, and THESL plans to automate the network units at this location. DISTRICT DISTRICT NEIGHBOURHOOD STATION(S) FEEDER(S) TORONTO FINANCIAL DISTRICT GEORGE & DUKE MS AGL & AGL

3 Page of JUSTIFICATION Project Background This vault was initially built in. Upon a civil inspection, it was found that the walls of the vault are cracked. Specifically, the roof was found to have a tripping hazard and THESL has identified other minor issues related to ageing. Lastly, the equipment inside the vault has started to corrode and rust due to the presence of water and salt in the environment. 0 Benefits Improves the structural strength and safety of the vault walls and eliminates the tripping hazard on the roof through the construction of a new vault Mitigates the risk of collateral damage to network units (both transformers and protectors) failing due to the condition of the years old vault Improves environmental conditions through the replacement of PILC cable Enables automation capabilities to allow remote monitoring for troubleshooting purposes and control capabilities should any problems arise 0 IMPACT OF DEFERRAL If this project was to be deferred, safety risks associated with the vault walls would continue to pose a hazard to THESL construction crews and the public. Additionally, deferral of this work would prevent THESL from automating network units and it would be deemed a lost opportunity to modernize the system. Lastly, if this project was to be deferred, there is the added consequence of PILC cables not being removed from the system.

4 Page of Portfolio: Network Project Title: New Vault Erskine Avenue/Mt. Pleasant Project Number: 00 Project Year: 0 Estimate Cost: $,0,0 PROJECT DESCRIPTION Objective: The purpose of this project is to relocate and rebuild a network vault. In addition to this network units will be replaced (i.e., transformer and protector). In addition, the network units at this location are to be automated. 0 Scope: The scope of work for this project is to construct a new network vault and associated cable chambers. It would also involve the installation of two 00kVA network transformer units with a protector for each transformer, and all the cable work that needs to be carried out. In addition, THESL plans to automate the network units at this location. DISTRICT DISTRICT NEIGHBOURHOOD STATION(S) FEEDER(S) TORONTO YONGE & EGLINTON GLENGROVE TS AGL & AGL

5 Page of JUSTIFICATION Project Background The vault was initially built years ago and supplied four apartment buildings. In 00, a fire took place in this vault that lead to cracks in the roof and walls, as well as damaging and rusting one of the network vaults. Specifically, steel beams below a permanent slab had been destroyed beyond repair due to corrosion. Moreover, THESL had identified large areas of steel delaminating within the vault. Similarly, the vault walls show evidence of ageing and require attention. 0 Benefits Improves the structural strength and safety of the vault roof and walls through the construction of a new vault Mitigates the risk of collateral damage to network units (both transformers and protectors) failing due to the condition of the years old vault Enables automation capabilities to allow remote monitoring for troubleshooting purposes and control capabilities should any problems arise 0 IMPACT OF DEFERRAL If this project was to be deferred, safety risks associated with the vault roof and walls would continue to pose a hazard to THESL construction crews and the public. Additionally, deferral of this work would prevent THESL from automating network units and it would be deemed a lost opportunity to modernize the system.

6 Page of Portfolio: Network Project Title: Richmond/Bay Vault Rebuild (Loc. ) Project Number: Project Year: 0 Estimate Cost: $,, PROJECT DESCRIPTION Objective: The purpose of this project is to relocate the network vault and rebuild it. In addition to this network units will be replaced (i.e. transformer and protector) along with all PILC cables. 0 Scope: The scope of work for this project is to rebuild a network vault and associated cabling work, in particular PILC cables that have been identified in the vicinity of the project area. It would also involve the installation of two 000 kva transformers with 00A protectors, one for each transformer. DISTRICT DISTRICT NEIGHBOURHOOD STATION(S) FEEDER(S) TORONTO RICHMOND & BAY TERAULEY TS AA & AA

7 Page of JUSTIFICATION 0 Project Background This vault was initially built in. Upon a civil inspection, it was determined that the east vent has no proper support and that the removable slab on the vault roof does not allow for proper sealing of the joints. As a result, the top flanges of the steel beams are rusted. Moreover, the curb at the east vent is completely destroyed allowing for the free flow of water into the vault. The walls were also found to be in bad condition due to the age, wherein large areas of concrete spalling exist at the east and south walls. There is heavy damage to the top portion of the walls with large cracks, with the south wall bulging at the top. Lastly, the equipment within the vault is corroding and rusting due to the presence of water and salt in the environment. Benefits Improves the structural strength and safety of the vault roof and walls through the construction of a new vault Mitigates the risk of collateral damage to network units (both transformers and protectors) failing due to the condition of the years old vault Improves environmental conditions through the replacement of PILC cable 0 IMPACT OF DEFERRAL If this project was to be deferred, safety risks associated with the vault walls and roof would continue to pose a hazard to THESL construction crews and the public. Moreover, deferral of this work would also increase the risk for collateral damage to the network equipment in the event of the vault failing, and would subsequently compromise system reliability and distribution supply to customers in the downtown core. Lastly, if this project was to be deferred, there is the added consequence of PILC cables not being removed from the system.

8 Page of Portfolio: Network Project Title: Network Unit Replacement (Loc. N0) Project Number: 0 Project Year: 0 Estimate Cost: $,00, PROJECT DESCRIPTION Objective: The purpose of this project is to replace the existing network transformer and protector units due to ageing, poor physical condition, and the presence of fibretop protectors. Also network automation will be installed at this location. 0 Scope: The scope of work for this project is to rebuild a network vault and associated cabling work, in particular PILC cable that has been identified in the vicinity of the project area. It would also involve the installation of two 000 kva transformers with 00A protectors, one for each transformer. DISTRICT DISTRICT NEIGHBOURHOOD STATION(S) FEEDER(S) TORONTO HAZELTON & DAVENPORT HIGH LEVEL MS AH, A0H

9 Page of JUSTIFICATION Project Background The two network units were installed in and, and have fibretop protectors. These protectors are the oldest vintage of protectors in the system, and are prone to secondary faults at the top of the protector. Based on THESL inspection information, the network protectors are corroding, and the transformer units are showing signs of leaking. 0 Benefits Mitigates the risk of network units (both transformers and protectors) failing due to ageing transformer units that are and years old Removes obsolete fibretop protectors that would improve system reliability and supply by mitigating the risk of secondary faults on the protector units Reduces the risk of network transformer leaking oil into the environment 0 IMPACT OF DEFERRAL If this project was to be deferred, the risk of network units failing (i.e., transformers and protectors) due to equipment at or nearing end-of-life would continue to persist. Additionally, deferral of this work would prevent THESL from removing obsolete fibretop protectors and it would be deemed a lost opportunity to modernize the system. Lastly, if this project was to be deferred, THESL could face the threat of leaked transformer oil into the environment.

10 Page 0 of Portfolio: Network Project Title: Vault # Rebu-Bellair/Cum-Hi-Bl NW Project Number: Project Year: 0 Estimate Cost: $, PROJECT DESCRIPTION Objective: The purpose of this project is to relocate and rebuild the network vault. In addition to this, transformers will be replaced. 0 Scope: The scope of work for this project is to rebuild a network vault. It would also involve the installation of two 0kVA network transformers with protectors, one for each transformer. DISTRICT DISTRICT NEIGHBOURHOOD STATION(S) FEEDER(S) TORONTO YORKVILLE HIGH LEVEL MS AH & AH JUSTIFICATION Project Background This vault was built in 0 and upon a recent civil inspection; it was found that the roof and walls of the vault are cracked. Specifically, large portions of the removable slab has broken off and the inspection revealed that the concrete at the bearing of the slab is very

11 Page of soft (almost sponge-like) and can be easily dislodged. In addition, the rebar in these areas is exposed and partially destroyed due to corrosion and does not fit well, which results in a serious tripping hazard. In addition, the walls show strong signs of ageing that suggests the potential for a major failure. Lastly, the transformers and protectors in the vault are corroding and rusting due to the presence of water and salt in the environment. 0 Benefits Improves the structural strength and safety of the vault roof and walls through the construction of a new vault Mitigates the risk of collateral damage to network units (both transformers and protectors) failing due to the condition of the years old vault IMPACT OF DEFERRAL If this project was to be deferred, safety risks associated with the vault roof and walls would continue to pose a hazard to THESL construction crews and the public. Moreover, deferral of this work would also increase the risk for collateral damage to the network equipment in the event of the vault failing, and would subsequently compromise system reliability and distribution supply to customers in the downtown core.

12 Page of Portfolio: Network Project Title: Peter & King Street Vault Build Project Number: 0 Project Year: 0 Estimate Cost: $0,0 PROJECT DESCRIPTION Objective: The purpose of this project is to rebuild and relocate the network vault. In addition to this, network units will be replaced (i.e., transformers and protectors) and automated. 0 Scope: The scope of work for this project is to relocate and construct a network vault and all the associated cabling work that needs to be carried out. It would also involve the installation of two 00 kva transformers with A protector, one for each transformer, and THESL plans to automate the network units at this location. DISTRICT DISTRICT NEIGHBOURHOOD STATION(S) FEEDER(S) TORONTO WINDSOR WINDSOR TS AWR & AWR JUSTIFICATION Project Background This vault was initially built in and upon a recent civil inspection; it was found that the roof and walls of the vault are cracked. In particular, the removable slabs on the vault

13 Page of roof were cracked throughout and damaged beyond repair. Moreover, the inspection also revealed concrete spalling on the walls, which reduces the structural integrity and safety of the vault. 0 Benefits Improves the structural strength and safety of the vault roof and walls through the construction of a new vault Mitigates the risk of collateral damage to network units (both transformers and protectors) failing due to the condition of the years old vault Enables automation capabilities to allow remote monitoring for troubleshooting purposes and control capabilities should any problems arise IMPACT OF DEFERRAL If this project was to be deferred, safety risks associated with the vault roof and walls would continue to pose a hazard to THESL construction crews and the public. Additionally, deferral of this work would prevent THESL from automating network units and it would be deemed a lost opportunity to modernize the system.

14 Page of Portfolio: Network Project Title: St. Patrick Street/Queen Street West Project Number: Project Year: 0 Estimate Cost: $0, PROJECT DESCRIPTION Objective: The purpose of this project is to rebuild and relocate the network vault. In addition to this network units will be replaced (i.e., transformer and protector). In addition, the network unit at this location is to be automated. 0 Scope: The scope of work for this project is to relocate and construct a network vault, as well as all associated cabling that needs to be carried out. It would also involve the installation of one 00 kva transformer with an A protector, and THESL plans to automate the network unit at this location. DISTRICT DISTRICT NEIGHBOURHOOD STATION(S) FEEDER(S) TORONTO WINDSOR WINDSOR TS AWR

15 Page of JUSTIFICATION 0 Project Background This vault was initially built in and upon a recent civil inspection; it was found that the roof and walls of the vault are cracked. In particular, the permanent concrete slabs and supporting steel beams have been very heavily damaged and delaminated. In addition, there is significant damage to seals and several leaks in the vault roof. Lastly, the network unit contains a fibretop protector, which is an outage style of network protectors in the system and is prone to secondary faults at the top of the protector. Moreover, the network transformer and protector are corroding and rusting due to the presence of water and salt in the environment. Benefits Improves the structural strength and safety of the vault roof and walls through the construction of a new vault Mitigates the risk of collateral damage to network units (both transformers and protectors) failing due to the condition of the years old vault Enables automation capabilities to allow remote monitoring for troubleshooting purposes and control capabilities should any problems arise 0 IMPACT OF DEFERRAL If this project was to be deferred, safety risks associated with the vault roof and walls would continue to pose a hazard to THESL construction crews and the public. Additionally, deferral of this work would prevent THESL from automating network units and it would be deemed a lost opportunity to modernize the system.

16 Page of Portfolio: Network Project Title: Network Rebuild Eglinton Avenue East/Lillian (Loc.) Project Number: Project Year: 0 Estimate Cost: $, PROJECT DESCRIPTION Objective: The purpose of this project is to rebuild a network vault. In addition to this, network units will be replaced (i.e. transformer and protector). In addition, the network unit at this location is to be automated. 0 Scope: The scope of work for this project is to rebuild a network vault, along with the installation of nine -00kcmil XLPE conductors that need to be installed between multiple cable chambers. It would also involve the installation of two 0kVA network transformers and 000A protectors, one for each transformer. DISTRICT DISTRICT NEIGHBOURHOOD STATION(S) FEEDER(S) TORONTO YONGE & EGLINTON DUPLEX TS A0DX & ADX

17 Page of JUSTIFICATION Project Background This vault was initially built in and upon a recent civil inspection; it was found that the roof and walls of the vault are cracked. Specifically, the removable slabs are cracked and the supporting beams are rusted. Moreover, the grounding rods were also found to have rusted, which poses a significant safety concern to THESL construction crews. As such, due to the presence of water and salt in the environment, the transformers and protectors were also found to be corroding and rusting. 0 Benefits Improves the structural strength and safety of the vault roof and walls through the construction of a new vault Mitigates the risk of collateral damage to network units (both transformers and protectors) failing due to the condition of the years old vault 0 IMPACT OF DEFERRAL If this project was to be deferred, safety risks associated with the vault roof and walls would continue to pose a hazard to THESL construction crews and the public. Moreover, deferral of this work would also increase the risk for collateral damage to the network equipment in the event of the vault failing, and would subsequently compromise system reliability and distribution supply to customers in the downtown core.

18 Page of Portfolio: Network Project Title: Overlea Boulevard/William Morgan Project Number: Project Year: 0 Estimate Cost: $, PROJECT DESCRIPTION Objective: The purpose of this project is to rebuild and to relocate the network vault, as well as replace the network units (i.e., transformer and protector). This project also involves the replacement of associated PILC cables. 0 Scope: The scope of work for this project is to relocate and construction of a network vault and associated cabling work that needs to be carried out, especially PILC cables identified in the vicinity of the project area. It would also involve the installation of two 00 kva transformers with an A protector for each transformer. DISTRICT DISTRICT NEIGHBOURHOOD STATION(S) FEEDER(S) TORONTO LEASIDE LEASIDE TS AL, AL, AL

19 Page of JUSTIFICATION Project Background THESL has determined that the vaults in this area are, on average, approximately 0 years old and a civil inspection on this vault revealed cracks in the vault roof and walls. In particular, all the supporting steel beams in the vault have corroded with the concrete on the roof being damage due to a de-icing agent. Furthermore, there are visible cracks on the bottom and the roof is considered to be a tripping hazard. Lastly, the seals in the cracks are damaged, thereby allowing water to flow through these cracks from the roof. 0 From an electrical standpoint, the inspections also suggest that the transformer(s) are showing signs of leaks and corrosion, and THESL has also identified PILC cable in this vault. Accordingly, given the harmful effects from the lead material, THESL plans to phase out PILC cable to improve personnel safety and environmental conditions within the associated cable chambers. 0 Benefits Improves the structural strength and safety of the vault roof and walls through the construction of a new vault Mitigates the risk of network units (both transformers and protectors) failing due to ageing transformer units that are approximately 0 years old Reduces the risk of network transformer leaking oil into the environment Improves environmental conditions through the replacement of PILC cable IMPACT OF DEFERRAL If this project was to be deferred, the risk of network units failing (i.e., transformers and protectors) due to deteriorating condition or ageing equipment would continue to persist. Additionally, public safety risks associated with the cracked vault roof or walls would

20 Page 0 of continue to persist as well. Lastly, if this project was to be deferred, THESL could face the threat of leaked transformer oil into the environment and the increased hazard of PILC cables not being removed.

21 Page of Portfolio: Network Project Title: Rebuild Vault Roof (0 Gloucester) Project Number: 00 Project Year: 0 Estimate Cost: $0,0 PROJECT DESCRIPTION Objective: The purpose of this project is to rebuild the network vault roof and all associated PILC cables. In addition to this, network units will be replaced and automated (i.e., transformer and protector). 0 Scope: The scope of work for this project is to relocate and construct a network vault and all associated cabling that needs to be carried out, especially PILC cable in the vicinity of the project area. It would also involve the installation of two 00 kva transformers with A protectors, one for each transformer. DISTRICT DISTRICT NEIGHBOURHOOD STATION(S) FEEDER(S) TORONTO CHURCH AND WELLESLEY CHARLES TS A0CS, ACS

22 Page of JUSTIFICATION 0 Project Background This vault was initially built in and upon a recent civil inspection; it was found that the roof of the vault is cracked. In particular, there is substantial erosion on the top of the slab and the permanent roof slab has extensive damage around the hatch. Moreover, the top perimeter walls are damaged and leaks have caused heavy corrosion on the steel roof beams. Also, as the vault is located in a high traffic area, it is deemed to be a tripping hazard to members of the public. Finally, the network units have fibretop protectors that are the oldest vintage of protector types in the system and are prone to secondary faults. THESL has also identified PILC cable in this vault. Given the harmful effects from the lead material, THESL plans to phase out PILC cable to improve personnel safety and environmental conditions within the associated cable chambers. 0 Benefits Improves the structural strength and safety of the vault roof and walls through the construction of a new vault Mitigates the risk of collateral damage to network units (both transformers and protectors) failing due to the condition of the years old vault Improves environmental conditions through the replacement of PILC cable IMPACT OF DEFERRAL If this project was to be deferred, safety risks associated with the vault walls and roof would continue to pose a hazard to THESL construction crews and the public. Moreover, deferral of this work would also increase the risk for collateral damage to the network equipment in the event of the vault failing, and would subsequently compromise system reliability and distribution supply to customers in the downtown core. Lastly, if this

23 Page of project was to be deferred, there is the added consequence of PILC cables not being removed from the system.