ELV & Low-Current Systems Installation
ELV and low-current installation covers CCTV, access control, public address, intercom, nurse call and master clock as the specification lists them. CCTV follows IEC 62676 and access control IEC 60839, in Riyadh, Jeddah, Dammam and Khobar, with device schedules, cable test results, commissioning records and as-builts at handover.
ELV stands for extra low voltage: the systems that carry signals and low-power supplies rather than building power. In a Saudi building package it usually means CCTV, access control, public address, intercom, nurse call and master clock, as the specification lists them. Fire alarm and structured cabling are often separate headings, covered on their own pages. NLS Contractors prices ELV as a works package: supply and install, or installation of client-supplied equipment, then testing, commissioning and training.
Each system has its own reference standard. IEC 62676 covers video surveillance systems, and IEC 60839 covers alarm and electronic access control systems. The project specification adds the detail: camera count and resolution, recording days, door types and reader technology, speaker zones, nurse call stations and the head-end layout. The offer follows the device schedule line by line, so a quantity difference between the BOQ and the drawings is raised before pricing.
The head-end room is where ELV packages succeed or fail. Servers, recorders, racks, amplifiers, power supplies and the network edge need space, ventilation and a clean power feed, and the room layout is agreed early with the electrical and structured cabling packages. Cable pathways are shared with those packages, and ELV cables are kept apart from power circuits to avoid interference.
Commissioning is system by system. CCTV views are aimed and checked against the coverage drawings. Access control doors are tested for reader, lock, request-to-exit and fire release behaviour. Public address zones are checked for coverage and intelligibility, and nurse call stations are tested against the call routing in the specification. Cable test results come first and the functional tests follow.
Deliverables are device schedules, head-end room layouts, cable test results, commissioning records, as-built drawings and operator training. To price an ELV package in Riyadh, Jeddah, Dammam or Khobar, send the device schedule, the specification clauses for each system, the head-end layout and the BOQ. Price and lead time depend on the scope, and the offer states both.
Specifications
- ✓Systems as the specification lists them: CCTV, access control, public address, intercom, nurse call, master clock
- ✓ELV means signal and low-power systems, kept apart from power circuits
- ✓Standards: IEC 62676 for video surveillance, IEC 60839 for alarm and access control, project specification
- ✓Head-end rooms: racks, recorders, amplifiers and power supplies laid out with the electrical package
- ✓Handover: device schedules, head-end layouts, cable test results, commissioning records, as-builts, training
Frequently Asked Questions
What is the difference between ELV and LV?+
LV carries building power at mains voltage to lights, sockets and equipment. ELV carries signals and small power supplies for systems like CCTV and access control. They are installed as separate packages.
Where does the head-end equipment go?+
In a dedicated room with space, ventilation and clean power, laid out with the electrical and cabling packages. The offer lists the head-end items it covers and the room conditions it assumes.
How is a CCTV system commissioned?+
Cables are tested first. Cameras are then aimed and checked against the coverage drawings, recording and retention are set, and the client witnesses live views and playback.
Can several ELV systems share one cable route?+
Often yes, in shared ELV containment kept apart from power circuits. Fire alarm cables normally keep their own fire-rated route. The containment layout settles this before cables are pulled.
Who supplies ELV & Low-Current Systems Installation in Saudi Arabia?+
NLS Contractors (Northlane Solutions Company) supplies ELV & Low-Current Systems Installation across Saudi Arabia, including Riyadh, Jeddah, Dammam and Jubail. Send your specification and quantities to info@nlscontractors.com or info@northlanesolution.com for a quotation.