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Illuminance ranges for Indoor Activities/Areas

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The illuminance recommended for a specific type of activity will depend partly on the nature of that activity(principally its visual difficulty) and partly on the design of the interior concerned (particularly the lightness of the surroundings). The table below gives recommended illuminance , based on the scale defined above, for different areas and activities. The values given are average maintained illuminance over the task area. There fore the illuminance may not fall below these values, no matter what the age of the installation. The values are valid for normal visual conditions and take into account the following factors: - requirements for visual tasks -safety -psycho-physiological aspects such as visual comfort and well being -economy -practical experience The illuminance should be increased, when: -unusually low reflectances and /or contrasts are present for the task -visual work is critical -errors are costly to rectify -accuracy or higher productivity is of ...
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Elements of Building Management Systems

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Audio Video System Integration Board Room / Meeting Rooms / Auditorium Public Announcement System Lighting Automation Energy Monitoring and Conservation Curtain Automation Fire Security Systems Surveillance Solutions Access Control Systems Power Trunking Water Management System EPABX, Video Door Phones, Intercom Elevator Control Visitor Management Advantages of Building Automation System (BAS) Centralized control Remote support Reduced complaints Staff optimization Seamless integration Energy savings Increase level of comfort Improved security BAS powers Flexibility & Convenience No location constaint Visualization Parameterization Alarm Monitoring Room Automation Data Point Lights Blinds / Curtains Temperature Sockets / Appliances Motion and Occupation Smoke Doors and Windows contacts Access Control Camera
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Types Of Lighting Controls

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Lighting Controls At the nerve center of a lighting system are the controls,which manipulate the level of illumination in each space and provide flexibility in those spaces used for variety of functions. Controls are the only part of the lighting system that the user is able to touch so should be easily adjustable.Lighting controls can aid in managing and limiting the energy consumption in a space, while still providing the individual user flexible light levels in multiple use spaces. There are five basic strategies to save energy, enhance performance and offer convenient  light level changes, they are Occupancy sensing Scheduling Daylight Dimming Tuning Preset dimming Occupancy sensing and scheduling are means of limiting the hours of lighting to the hours of occupancy. Daylight dimming aims to dim electrical light as available daylight enters a space to achieve a constant light level.Tuning and preset dimming allow the user to change light levels for spe...
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