WHAT ENGINEERS CALL ELV SYSTEMS IN BUILDINGS

CONSTRUCTION AND ENGINEERING OF EXTRA-LOW VOLTAGE SYSTEMS IN HIGH RISE STRUCTURES: CONTRACTORS’ OVERVIEW

Building Management System:

—  A Computer system connected to outstations which are programmed to decide on the necessary action required to control or monitor.

 

—  It controls, monitors, and optimizes the installed electrical and mechanical equipment for comfort, safety and efficiency.

 

The monitored systems include: Power systems, Lighting, HVAC, Access Control, CCTV, Fire alarm system, Lifts, plumbing, and other security

CCTV (Closed Circuit Television) System:

—  It is a video surveillance security system controlled by a Workstation through special software. E.g: NiceVision software.

—  It can be interfaced with Access control and Fire alarm system via a Supervision Workstation. E.g: Siemens MM8000

—  The system consists of a Monitor and Keyboard, Cameras, and digital video recorder/ network video recorder.

Access Control System

—  Used to monitor access to the building and restricted areas

—  The system consists of Controllers, Readers, Controlled doors, turnstiles, and barriers that utilize a vast network of Access control System.

—  A supervision station (e.g: Siemens MM8000) is the alarm management system which monitors the fire, Access, CCTV, and HVAC.

Telecommunication System:

The Telecommunications System is designed based on a Structured cabling methodology:

Ø An Entrance Facility in Ground Floor (PTO Room) receives the external Fiber optic cable.

Ø A Vertical Distribution (Backbone ) distributes the Fiber and copper cables to each technical Room  (GDR)

Ø Horizontal Distribution: connects the Technical rooms (GDR) to the User outlets. A consolidation point exists between the GDR room and each user outlet.

—  Backbone Cabling:

Ø 42,500m Cat7 Copper Cable; 3024 points (Backbone and Internal cabling between data center and MTC)

Ø 6000m 24 Core Multi-mode Fiber (50/125um)

Ø 2000m 24 Core Single-mode Fiber(9/125um)

—  Horizontal cabling:

Ø 6216 Points of Copper

Ø 4824 Points of Fiber

Parking Management System

—  It is controlled by a workstation

—  Used to enable a more efficient use of parking resources by Instantly pinpointing available parking spaces, thereby, stopping congestion.

—  Real-time Level wise vehicle counting, and parking status

—  Constitutes the Access Control (i.e, Barrier control, Loops, Automatic gates,…)and security system.

—  Offers improved design flexibility by accommodating change.