ELV systems

Yihua Intelligent — engineering every project with care, building satisfied customer quality.

Seventeen subsystems, covered end to end — from design coordination through specialist detailing, construction and commissioning to acceptance, under one contract.

ELV installation in a public building
Grade IIElectronic and intelligent engineering
04 · ELV System

Concealed works decide whether a building works

Structured Cabling, computer networks, video surveillance, access control, public address and equipment rooms — most of these run inside ceilings, trays and walls. Once built they are hard to change, yet they decide how well the building runs for the next ten years. We take them on as the main contractor: design coordination, specialist detailing, cabling, system integration and final acceptance are all our responsibility, with the same team producing the drawings and building the work.

Brand support: each ELV subsystem uses mainstream products validated across batch projects, planned together with the KNX smart system and managed centrally, so multiple systems do not end up running in isolation.

  • All seventeen subsystems covered

    Grouped into information facilities, public safety, building equipment management and equipment rooms with integration, with the depth of each set by project scope.

  • Every stage available

    Scheme, preliminary design, construction drawings, construction and commissioning, acceptance — taken as a whole or stage by stage alongside the design institute.

  • Design and construction in one team

    Detailed drawings, quantity take-off and site construction sit with the same team, so programme and acceptance standards stay controllable and traceable.

  • Subsystems

    Seventeen subsystems in four groups

    Subsystem division follows GB/T 50314, the intelligent building design standard. Architecture and containment are reserved against the full list once, and subsystems can go live in phases.

    6 systems

    Information facilities

    Structured Cabling, computer networks, public address and emergency broadcast, information display and wayfinding, conference and sound reinforcement, cable television and IPTV.

    6 systems

    Public safety

    Video Surveillance, access control, intrusion alarm and perimeter protection, electronic patrol, visitor management and access gates, and car park management.

    3 systems

    Building equipment management

    Building automation, energy monitoring and metering, and smart lighting control.

    2 systems

    Equipment rooms and integration

    Data centre works (fit-out, power distribution, precision cooling, gas suppression, environmental monitoring) and the IBMS integration platform.

    Delivery

    Delivered across every stage, whole or in stages

    Each stage has a defined deliverable: scheme report, system diagrams, construction drawings, bill of quantities, test reports and handover at completion.

    01
    Scheme coordination
    Identifying the difficult parts, fixing the subsystem configuration, providing input on equipment room and ELV room locations, and supporting the investment estimate.
    02
    Preliminary design
    Overall architecture and system diagrams for each subsystem, capacity calculations and the interface control document.
    03
    Construction drawings
    Point layouts, tray and containment routing, ELV room and equipment room details, and equipment technical specifications.
    04
    Construction and installation
    Detailed drawings, material approval, reserved openings and embedding, cabling, and 100% link testing.
    05
    Commissioning and acceptance
    Individual and integrated testing, security grading assessment support, completion documentation, the electronic asset register and training handover.
    Coverage

    Who we work for

    Residential communities

    Smart home foundations inside the dwelling, plus security, intercom and parking management in the shared areas.

    Commercial and office

    ELV main contracting and operations handover for shopping centres, office towers and industrial parks.

    Hospitals, factories and airports

    Production plants, logistics and hazardous areas each need their own approach — network separation, explosion-proof selection and equipment room planning. We have handled all of them.

    Tell us about your project

    Send us the space, the function and the outcome you need. We reply with an approach, a system outline and a clear quotation.