MOEFA System for Lift Lobby Area
  • Most multi-storied buildings feature similar designs for lift lobbies and staircases, and have comparable requirements for fire and life safety components. Consequently, our calculator is designed with these common patterns in mind. Users can verify and adjust the details as needed.
  • For specific building structures, users can add additional materials to finalize the quantities required.
  • The calculator provides average industry prices, but users can adjust these figures based on their preferred brands and price offers.

MOEFA System Estimate

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MOEFA System Bill of Materials

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Tender Specification - MOEFA System

Talkback System

The objective of the Talkback System is to allow individuals requiring emergency support to use the nearest talkback speaker to communicate directly with ground floor security staff.

Public Address System

The objective of the Public Address System is to broadcast emergency messages to specific locations, zones, or all occupants as needed. Both the Talkback and Public Address Systems serve dual purposes, facilitating day-to-day communications in addition to emergency alerts.

Manual Call Point System

If a fire is noticed and is minor enough to be managed independently or with the assistance of security staff via the Talkback System, occupants shall not activate the Manual Call Point System unnecessarily, which may cause undue panic to others. If fire condition tend to escalate, manual call point system must be activated to alert neighboring occupants and ground floor security by activating nearby manual call point.

NBC 2016 Requirements:

  • Voice alarms must be used instead of hooters or sirens, in English, Hindi, or local languages.
  • Alarms should include flashing lights.
  • Access controlled doors and emergency lighting must deactivate automatically during alarms.

Important Considerations:

  • All fire warning system cables and instruments must have fault monitoring systems.
  • Cables must be mechanically and fire-resistant to ensure functionality during fires.

Additional Recommendations:

  • Regularly monitor the health of fire detection and warning equipment, including speakers and talkback systems.
  • Avoid using systems that do not meet these standards, such as lifestyle commercial speaker systems or those lacking fault monitoring.

Functional brief and Specifications of Talkback Systems
Objective

The purpose of installing a talkback system is to enable communication between occupants in trouble zones and rescue support staff.

System Components

The talkback system consists of hands-free units equipped with a speaker, microphone, and a single call button.

Master Control and Receiver Unit

The master control and receiver unit typically includes a handset or microphone and a panel speaker for two-way conversations. It features a display to indicate the caller’s location and control buttons/icons for targeted calls and conference calls.

Operation

When needed, users can activate the talkback unit by pressing the call button. This action will prompt the control panel to display the device ID and location along with a ringtone. The user can then acknowledge the call, establishing a connection for conversation.

Audio Specifications

The talkback unit’s speaker output shall be a minimum of 65 dB, ensuring it is audible to listeners. The microphone should be capable of picking up voice from a distance of up to 1 foot with intelligibility.

Fault Monitoring and Supervision

Each talkback unit is electrically supervised for fault monitoring. The recommended cable for the talkback system shall be fire-resistant, with each core of the cable electrically supervised for open and short circuits.

Connectivity Monitoring

The control panel shall also monitor each talkback speaker unit for connectivity. When a unit experiences defects or connectivity issues, it shall be detected and provide an audio-visual warning.

Power Backup

The talkback system shall include a secondary battery for power backup to ensure an uninterrupted power supply.

Note:

  • For talkback units exposed to sunlight, the enclosure should be paintable to prevent color fading due to UV rays. Regular repainting will help maintain its appearance. Additionally, talkback units installed outside, especially in refuge areas, must have weather proof enclosures to ensure durability and reliable operation in outdoor conditions.

What are the locations Talkback speaker unit shall be installed ?
  1. Each floor level
  2. Each notification zone
  3. Each elevator cab
  4. Elevator lobbies
  5. Elevator machine rooms
  6. Emergency and standby power rooms
  7. Fire pump rooms
  8. Areas of refuge
  9. Each floor level inside an enclosed exit stairs
  10. Other rooms or areas as required by the authority having jurisdiction.
Functional brief and Specifications of Public Address System
Objective

The Public Address (PA) System is designed to deliver clear and targeted communication within specific zones or areas of a building, particularly during emergencies. Speakers are strategically positioned to ensure effective communication throughout the facility.

System Components

  1. Speakers with Beacon: Equipped with visual and audible alert features.
  2. Voice Announcement Speakers: Designed for clear and intelligible voice communication.

Master Control

  1. Direct Announcements: Allows operators to make real-time announcements.
  2. Automatic Messages: Enables pre-recorded messages to be broadcasted to selected locations, floors, or areas as needed.

Voice Alarm

  1. Fire Alarm Activation : Upon detecting a fire, the system automatically broadcasts a message indicating the fire’s location, facilitating a swift response from occupants and rescue teams.

Audio Specifications

  1. Output Level: Speakers must produce audio levels between 65 dB and 100 dB.
  2. Clarity: Must ensure clear and understandable announcements.

Fault Monitoring and Supervision

  1. Speaker Monitoring : Each speaker unit is electrically supervised to detect faults such as open or short circuits.
  2. Cable Requirements : Use fire-resistant cables with supervised cores for reliability.

Connectivity Monitoring

  1. Control Panel Monitoring : The control panel continuously checks the connectivity of each speaker unit.
  2. Alert System : Provides audio-visual warnings if any speaker unit encounters defects or connectivity issues.

Power Backup

  1. Secondary Battery : The system includes a backup battery to ensure uninterrupted operation during power outages.

Note:

  • The assembly point speaker must be weather proof to withstand diverse environmental conditions. A horn-type speaker is recommended, with a minimum power rating of 12 watts and an audio output ranging from 90 to 100 dB. In car parking areas, ensure adequate coverage for effective communication throughout the space.

  • The PA system should be capable of driving all connected speakers simultaneously at full load, with an additional 20% capacity reserved for future expansion.

  • The power backup must provide a minimum of 30 minutes of operation at full load to ensure uninterrupted performance.

What are the locations Public Address speaker unit shall be installed ?
  1. Each floor level
  2. Each notification zone
  3. Elevator lobbies
  4. Area(s) of refuge
  5. Each floor level inside an enclosed exit stair(s)
  6. Assembly point.
Functional brief and Specifications of Manual Call Point System
Objective

Manual call points are crucial devices used to trigger the automatic emergency support system in a building. Strategically placed throughout the facility, these call points enable occupants to initiate emergency responses when a fire is detected. The control panel is configured to activate specific support system devices based on the location of the activated call point, triggering a pre-programmed series of actions to manage the emergency effectively.

Fault Monitoring and Supervision

  1. Electrical Supervision : Each Manual call point will be monitored for faults, including open and short circuits.
  2. Cable Requirements : Use fire-resistant cables with supervised cores to ensure reliable fault detection and system integrity.

Connectivity Monitoring

  1. Control Panel Oversight : The control panel continuously monitors the connectivity of each Manual call point.
  2. Alert System : Provides audio-visual warnings if any call point encounters defects or connectivity issues.

Power Backup

  1. Secondary Battery : The manual call point system will include a backup battery to maintain operation during power outages, ensuring continuous readiness in emergencies.

Note:

  • If sunlight directly impacts the location of a manual call point, the enclosure should be paintable. Exposure to UV rays from sunlight can cause the color of the enclosure to fade over time. A paintable enclosure allows for periodic repainting to maintain its appearance and effectiveness.

What are the locations Manual call point shall be installed ?
  1. Each floor level
  2. Each notification zone
  3. Each elevator cab
  4. Elevator lobbies
  5. Elevator machine room(s)
  6. Emergency and standby power room(s)
  7. Fire pump room(s)
  8. Area(s) of refuge
  9. Each floor level inside an enclosed exit stair(s)
  10. Other room(s) or area(s) as required by the authority having jurisdiction.
Important points of as per IS 2189 for Manual Call Point :

If manual call points are located on the landings of an enclosed staircase, such points at each level shall be incorporated within the zone that serves the adjacent accommodation on that level.

Size and Number of Zones (Protected with Manual Call Points)
  1. In systems containing only manual call points, location of a fire is usually known to the person operating the call point. As it is often difficult to get information in time to the safety personnel, the restriction on the size and number of zones shall also apply to the systems protected with manual call points only.
  2. To prevent misleading indication of the position of the fire, it is advisable that manual call points be indicated in the control equipment separately from the detectors in zones, which are protected, by both detectors and manual call points. It is strongly recommended that the circuits for the detectors and the call points shall be different in case of conventional detection systems.
  3. Each loop should not be divided into more than 8 fire zones. Minimum two isolators are required per zone. It is recommended that a pair of fault isolator modules be employed for every 20-30 detectors/manual call points
Siting of Manual Call Points
  • Manual call points shall be so located that, to give an alarm, no person in the premises has to travel distance of more than 30 m to reach them. When manual call points are also installed external to the building, the travel distance shall be 45 m.
  • Where necessary, the travel distance may require to be reduced to less than 30 m, for example, where there is difficulty in free access within the risk or in potentially dangerous risks.
  • Call points shall be fixed at a height of 1.4 m above the surrounding floor level, at easily accessible, well illuminated and conspicuous positions, which are free of obstructions.
  • Where the call points are not visible from the front as in the case of a long corridor, they shall be surface mounted or semi-recessed in order to present a side profile area of not less than 750 mm'.
  • Manual call points shall be housed in dust pre of and moisture proof enclosure properly sealed with rubber lining.
  • Manual call point shall be located preferably near entry to staircases at various levels.