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Tender Details
- Country: United Kingdom
- Summary: Tower Bridge - High Voltage Electrical Infrastructure Upgrade
- GBT Ref No: 51408960
- Deadline: 02 Apr 2021
- Competition: ICB
- Financier: Self Financed
- Purchaser Ownership: -
- Tender Value: 5000000
- Notice Type: Tender
- Document Ref. No.:
- Purchaser's Detail :
- Description :
- Title : Tower Bridge - High Voltage Electrical Infrastructure upgrade
Location Of Contract : London
Industry : Electrical wiring and fitting work - 45311000
Value Of Contract : £5,000,000
Description : The project works comprise upgrading the High Voltage (HV) and Low Voltage (LV) electricalinfrastructure and increasing its power resilience (i.e. the secondary source of power in the event of a power failure). The existing secondary supply can only power bridge lifts at half speed, subject to complex adjustments to driving machinery, and essential functions.In addition, the secondary power supply is used for river signal and navigation lights, public and safety lighting, and more critically, the security CCTV camera provision across the bridge. This effects the ability to complete bridge lifts as covered under the Corporation of London (Tower Bridge) Act 1885. Therefore, it is imperative that the backup power supply provides secure power resilience to these functions.The Bridge is currently at risk of power failure due to the existing electrical network andswitchgear being over 40 years old. There is currently no reliable source of back up supply due to the age and condition of the infrastructure and parts to carry out repairs to the switchgear are difficult to source as they are no longer readily available. The project works therefore comprise of replacing the HV & LV switchgear and transformers,segregating HV & LV services (... - Documents :
Purchaser : CITY OF LONDON CORPORATION
City of London Guildhall, London EC2P 2EJ England
Contact Person : Hirdial Rai
Email :hirdial.rai@cityoflondon.gov.uk
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