Extra-Low Voltage Systems and Electrical Engineering

Success in extra-low voltage projects depends on the quality of the engineering carried out before installation. ONGSEC works integrated with the architectural design, coordinating systems at an early stage and minimising surprises on site.

• Site survey, current-state assessment and requirements workshop
• Concept design, system architecture and block diagram preparation
• AutoCAD-based implementation drawings: floor plans, riser diagrams, panel layouts, detail drawings
• BIM (Revit) modelling and clash detection with other disciplines
• Cable route plan, tray/duct cross-section calculation and fill ratio check
• System-based calculation reports (lighting, camera coverage, speaker pressure level, detector coverage)
• Vendor-neutral technical specifications with measurable acceptance criteria
• Quantity take-off, survey and unit price analysis; approximate cost report
• Tender support, bid evaluation and technical conformity reporting
• Site supervision, test and acceptance protocols and as-built drawing delivery

• Cat6 / Cat6A / Cat7 / Cat8 copper cabling system design and installation
• Fibre optic infrastructure design, pulling and termination (single mode OS2, multimode OM3 / OM4 / OM5)
• MPO/MTP backbone cabling, cassette and trunk solutions for high-density connectivity
• Patch panel, cabinet, cable manager and cable management system installation
• Engineering and installation of cable trays, ducts, conduits and support systems
• Vendor-neutral delivery (Legrand, CommScope, Nexans, Panduit and equivalents)
• Cable testing and certification (channel/link testing with Fluke-type instruments) and delivery of measurement reports
• Managing manufacturer warranty processes (typically 20–25 year system warranty)
• Establishing a colour code and labelling standard (based on TIA-606) and recording it in the inventory
• Audit, clean-up and rearrangement of existing cabling infrastructure

• Camera requirement analysis: resolution and lens calculation per recognition / identification / detection level
• Camera types: fixed dome, bullet, PTZ, multi-sensor panoramic, fisheye
• Thermal camera and low-light performance camera applications
• Licence plate recognition (LPR/ANPR) and vehicle access automation integration
• Video management software (VMS) installation, user authorisation and multi-site management
• Video analytics: line crossing, area intrusion, abandoned object, crowd, face recognition (used in line with legislation)
• Recording storage calculation (bitrate, retention days, redundancy), RAID and archive strategy
• ONVIF conformance, PoE infrastructure planning and network segmentation
• Cyber security of the camera infrastructure: clearing default passwords, firmware management, isolated VLAN
• Vendor-neutral delivery (Canon, Pelco, Samsung, LG, Hikvision, Dahua, Axis and equivalents)

• Card (RFID/Mifare/DESFire) and mobile credential access control systems
• Biometric verification: fingerprint, palm vein, face recognition; multi-factor access scenarios
• Turnstile, barrier, speed gate and mantrap installations
• Anti-passback, two-person rule, time- and zone-based authorisation
• Car park and vehicle access control, barrier and plate recognition integration
• Time and attendance system (T&A) and integration with HR software
• Visitor management system, ID reading and temporary badge issuing
• Automatic door release under fire scenario and evacuation integration
• Central archiving of access logs and audit reporting

• Addressable and conventional fire detection panels, loop design
• Optical smoke, thermal, combined and beam detector applications
• Aspirating very early smoke detection systems (data centre, archive, warehouse)
• Flame detector and gas detector (LPG, natural gas, CO) applications
• Placement of call points, sounders, beacons and voice guidance devices
• Fire scenario programming: lift homing, dampers, cooling shutdown, door release
• Fire brigade panel, repeater panel and central monitoring integration
• Establishing a periodic test, maintenance and record-keeping programme

• General public address and background music systems, zone planning
• Voice evacuation (EVAC / Voice Alarm) systems, EN 54-16 compliant architecture
• Speaker type and power selection, sound pressure and intelligibility (STI) calculation
• IP-based public address and multi-building campus broadcast architecture
• Microphone stations, priority hierarchy and automatic message broadcast
• Automatic evacuation announcement integrated with fire detection
• High-noise industrial environment speaker and beacon solutions

• Building management system (BMS) design, field device selection and commissioning
• Multi-vendor integration via KNX, Modbus, BACnet and SNMP protocols
• Mechanical system (cooling, ventilation, heating) automation and scenario programming
• Lighting automation, daylight and presence sensors for energy savings
• Zone/facility-based consumption monitoring and reporting with energy analysers
• Remote reading of water, gas and electricity meters and transfer to dashboards
• Alarm management, event logging and mobile notification integration
• Cyber security of the automation network: segmentation, authentication, update management

• Fence-mounted detection systems (vibration sensor, fibre optic line type)
• Microwave and infrared barriers, buried cable detection
• Long-range detection and automatic target tracking with thermal cameras
• Radar-based detection and wide open-area protection
• Automatic response scenarios integrated with lighting, sirens and deterrent systems
• Unifying all subsystems in central security management software (PSIM)
• Multi-sensor verification logic to reduce false alarm rates
• Integration of drone detection and warning systems (within the scope permitted by legislation)

• Installation and integration of X-ray baggage and cargo screening devices
• Walk-through metal detector and hand-held detector applications
• Under-vehicle surveillance systems (UVSS) and vehicle checkpoint design
• Integration of explosive trace detectors and specialised screening equipment
• Checkpoint flow design, staff/visitor separation and queue management
• Correlating screening results with access control and CCTV systems

• Nurse call and bedside communication systems
• Master clock and time synchronisation systems (including NTP/PTP)
• IPTV, digital signage and information display infrastructure
• Meeting room and conference hall AV systems, video conferencing integration
• Simultaneous interpretation and delegate conference systems
• Wireless paging and personnel call systems
• Queue management and customer routing systems
• Emergency lighting and wayfinding infrastructure
• Wi-Fi infrastructure planned in coordination with the extra-low voltage design

• Low-voltage panel manufacturing, installation and commissioning
• Lighting and socket installations, cabling and distribution engineering
• Power factor correction and harmonic filter systems
• Generator and UPS supply lines, ATS/STS applications
• Earthing installation, equipotential busbar and measurement reporting
• Lightning protection and surge protection (SPD) applications
• Cable cross-section, voltage drop and short-circuit calculations
• Periodic inspection and conformity reporting of electrical installations