What is the difference between conventional and addressable fire alarms?

The biggest difference between conventional and addressable fire alarms is customizability. Conventional fire alarms sit on the wall or ceiling and go off individually when they detect smoke or fire, making them perfect for small buildings such as individual offices or retail shops. Addressable fire alarms, on the other hand, provide specific information about individual detectors that are invaluable if your office is part of a larger building or building complex. Addressable fire alarm systems can be customized to where different devices have different alarm thresholds based on their locations. Addressable fire alarm systems are typically more expensive than conventional alarms, but the extra information they provide to firefighters and building managers is invaluable.

How does a standard response fire sprinkler work?

Standard response (SR) sprinkler heads are best suited for commercial or industrial buildings, including factories and warehouses. They activate individually to prevent causing water damage where there is no fire present. SR sprinklers take longer to activate than quick response sprinklers, requiring the heat from a fire below to reach a higher temperature before the liquid inside the bulb expands, the glass breaks, and water flows through the sprinkler head. SR sprinklers contain 5 mm glass bulbs that take longer for the expanding liquid inside to burst them. That said, these sprinkler heads still react within seconds, quickly dousing any fire.

How does a quick response fire sprinkler work?

Quick response (QR) sprinkler heads are typical in high-density, light-hazard environments, including hospitals, assisted living facilities, office buildings, and schools. They are also often installed in residences. QR sprinkler heads respond faster to the flames below by activating at a lower temperature than SR sprinklers. They have 3 mm bulbs that allow the liquid inside to expand and break the glass quickly. It’s only appropriate to install QR sprinkler heads in applications that are unlikely to have high ambient temperatures that could trigger a sprinkler head without a fire present.

Which type of building require Fire Hydrant System?

All buildings above 15 meter, Irrespective of height Hotels, Educational Institutions, Hospitals, Assembly, Business Centers, Industrial Properties, Mercantile need fire hydrant system.

Why Fire Sprinkler System is required and its different types

on June 16, 2020

Fire Sprinkler System fall under the active fire protection method of fire fighting. They function based on a water supply system which is designed to provide a adequate pressure and flow rate within the piping system. In and around the Pune region sprinklers are mandatory in the residential building which have a height of 45 meters or above. It is mandatory in all commercial and industrial buildings. Fire Sprinkler System are extensively used across the world with over 40 million installed yearly. A study shows that buildings which have sprinklers installed over 90% of fire incidents are arrested by the sprinkler system itself.

All closed head sprinklers are protected by a heat sensitive glass bulb or a two part metal link which is held together with fusible alloy. There is a pipe cab behind the glass bulb which prevents the water from exiting the sprinkler in normal conditions. This sprinkler is activated once the predetermined heat level is reached allowing the water to flow outwards and arrest the fire. This mean any and all sprinklers which sense the required heat would open and allow water flow onto the affected area. This system is designed to minimize water wastage on any unaffected area while focusing the water output on affected areas, this is commonly installed by Sujay Fire LLP in and around Pune Region.

The Fire hydrants used by fire department generally have an outflow of 900 liters of water per minute, this is much lower in case of sprinklers. A typical sprinkler discharges around 60 to 150 litres per minute. There are also early suppression fast response (ESFR) sprinklers at a operating pressure of 3.5 kg/cm2 which discharge approximately 380 liters of water per minute. Fire Sprinklers Systems are activated within 1 to 4 minutes from the fire’s start. Where as in Pune region fire department would take 15 minutes to reach site and additional 10 minutes to setup their equipments and start fire fighting. This additional time may result in a much larger fire and requirement of much more water to douse the same. Hence automatic fire sprinkler systems are advised in high risk buildings as well as high rise buildings.

Fire Protection System in Buildings

As mentioned in our other blogs the installation of fire protection systems is imperative in all buildings considering the various fire hazards we face. We at Sujay Fire LLP are an government approved licensed agency for such fire protection systems installations. We shall be listing out the different types of Fire Protection Systems required for all kinds of buildings.

Residential Sector

Sr. No.	Height	Fire Protection System Suggested
1	Below 15 Meters	Extinguishers on Each Floor
2	15 Meters to 24 Meters	Fire Down comer connected to overhead water tank with below items on each floor. - Extinguisher - Hose Reel Drum - Fire Hydrant - Hose Box and Branch Pipe
3	24 Meters to 45 Meters	Fire Riser connected to overhead water tank as well as underground water tank and courtyard ring. With below items on each floor. - Extinguisher - Hose Reel Drum - Fire Hydrant - Hose Box and Branch Pipe - Manual Call Point Additional Equipments - Courtyard Hydrant System - Fire Alarm Panel - Pump Room with Fire Panel - Mechanical Ventilation in Basements
4	45 Meters and Above	Fire Riser connected to overhead water tank as well as underground water tank and courtyard ring. With below items on each floor. - Extinguisher - Hose Reel Drum - Fire Hydrant - Hose Box and Branch Pipe - Manual Call Point - Smoke Detectors - Automatic Sprinkler System Additional Equipments - Courtyard Hydrant System - Fire Alarm Panel - Pump Room with Fire Panel - Staircase and Lift Pressurization - Mechanical Ventilation in Basements

Commercial Sector

Sr. No.	Height	Fire Protection System Suggested
1	Below 10 Meters	Extinguishers/ if Floor plate is more than 500 sq meter then sr no 3
2	10 Meters to 15 Meters	Fire Down comer connected to overhead water tank with below items on each floor. - Extinguisher - Hose Reel Drum - Fire Hydrant - Hose Box and Branch Pipe - Manual Call Point - Smoke Detectors
3	15 Meters and Above	Fire Down comer connected to overhead water tank with below items on each floor. - Extinguisher - Hose Reel Drum - Fire Hydrant - Hose Box and Branch Pipe - Manual Call Point - Smoke Detectors - Automated Sprinkler System Additional Equipments - Courtyard Hydrant - Pump Room - Staircase and Lift Pressurization - Mechanical Ventilation in Basements

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This Post Has One Comment

earn
30 Aug 2020

I am actually glad to read this blog posts which includes plenty of useful information, thanks for providing these data. Valerie Aldon Kidd