How is recording storage calculated?
Storage equals the number of cameras multiplied by the bit rate and the retention time. The bit rate depends on resolution, frame rate and compression, with a margin for motion.
Products we supply
Security, Fire Alarm & Low-Current Systems
CCTV, thermal cameras, fire and gas detection and access control, planned around risk, coverage and the rules for the building.
01Overview
Supply and engineering from one team
Powersense supplies cameras, recorders, detectors, panels and access-control equipment, and engineers the system: risk assessment, coverage design, storage and network sizing, integration and commissioning by our contracting team.
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02Scope and process
Engineering scope and deliverables
- 01
Risk assessment
Assets, threats, perimeter, entrances and critical areas are identified, and security and life-safety requirements are agreed.
DeliverableRisk and requirements report - 02
Coverage and camera design
Camera positions, lenses and resolution are chosen from the viewing distance and the level of detail required (IEC 62676-4).
DeliverableCamera layout, coverage plan - 03
Recording and network sizing
Storage follows camera count, bit rate and retention days. Network bandwidth, PoE budget and cabling are sized to EN 50173-1.
DeliverableStorage and network calculation - 04
Fire and gas detection design
Detector types, zoning, panels and alarm devices are designed to the rules for the building, guided by CEN/TS 54-14.
DeliverableFire-detection layout, cause-and-effect matrix - 05
Access control and intrusion
Doors, readers, controllers and alarm zones are defined (EN 60839-11-1, EN 50131-1) and integrated with video.
DeliverableDoor schedule, access matrix - 06
Integration and commissioning
Events from all systems are logged in one place, and system tests, user training and documentation complete the handover.
DeliverableTest records, operation manual
03Standards
International standards applied
These standards form the technical basis for design and equipment selection. The exact set is confirmed for each project against the national regulations in force.
- IEC 62676-4Video surveillance systems: application guidelines.
- CEN/TS 54-14Fire detection and alarm systems: guidelines for planning, design, installation, commissioning, use and maintenance.
- EN 54-2Fire detection and alarm systems: control and indicating equipment.
- EN 50131-1Intrusion and hold-up alarm systems: system requirements.
- EN 60839-11-1Electronic access control systems: system and component requirements.
- EN 50173-1Generic cabling systems: general requirements.
04Products
Products we supply
- IP and analogue CCTV systems
- Thermal cameras
- Fire and gas detectors and panels
- Card-based access control
05Project types
Typical project types
- Commercial and public buildings
- Industrial sites
- Hotels and residences
- Car parks and perimeters
06Technical notes
Technical notes and FAQ
Is fire detection part of the security system?
Fire detection is designed as a separate life-safety system, and integration only adds event visibility. We follow the rules that apply to the building; approval remains with the competent fire authority.
07Keep exploring
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