AllElectrical

Guildhall East and West Crypts Lighting Replacement and Static Inverter Installation

Summary of Project

The supply, installation, testing and commissioning was needed for several systems that were implemented in the refurbishment of the Guildhall east and west crypts. A replacement of the existing lighting installation was required within the Guildhall 11th century crypts, including the provision of new energy efficient LED luminaires. The provision of new static inverter systems to provide emergency lighting to the crypts was also used to keep in line with the current regulations at the time. Employment of a conservational building specialist to repaint all mortar after cabling installation was completed was also necessary to maintain the appearance of the crypts as if the area had remained untouched.

Scope of Works

East Crypt

  • Removal of existing mortar concealing lighting cabling
  • Strip out of redundant lighting cabling serving the east crypt and existing luminaires.
  • Installation of new MICC cabling within the crypt and FP200 enhanced back of house
  • Re pointing of all mortar joints once all cabling had been installed
  • Installation of new luminaires throughout
  • Installation of a new emergency lighting distribution board including new 4C 10mm2 FP400 sub main supply cable
  • Installation of a new 4.5kVA 3hr single phase in / single phase out static inverter and all associated changeover relays
  • Connection of the new static inverter to the existing BMS outstation
  • Commissioning of the static inverter system
  • Electrical Testing
  • Provision or record documentation.
  • Demonstration / user training of the installed systems to the client and end users.

West Crypt

  • Replacing column luminaires (connecting to existing wiring)
  • Installation of new FP200 enhanced cabling to serve new window, brick and step lights.
  • Re pointing of mortar joints where necessary
  • Installation of new luminaires throughout
  • Installation of a new emergency lighting distribution board including new 4C 10mm2 FP400 sub main supply cable
  • Installation of a new 4.5kVA 3hr single phase in / single phase out static inverter and all associated changeover relays
  • Connection of the new static inverter to the existing BMS outstation
  • Commissioning of the static inverter system
  • Electrical Testing
  • Provision or record documentation.
  • Demonstration / user training of the installed systems to the client and end users.

Site Address:  The Guildhall, Gresham St, London, EC2V 7HH

Programme:  20 Weeks

Client:  The City of London Corporation

Principal Contractor:  Powerbase Building Services Ltd

Consultant:  MH Associates Ltd

Project Value:  £175,000