Dear Seniors, please share your knowledge on how many fire extinguishers need to be kept in an office that is to be set up across 1660 sq. ft. Also, please let me know what type of extinguishers are mandatory. Kindly advise on the weight of the extinguisher and the number of extinguishers to be installed.

Are there any legal implications for installing fire extinguishers? Is a water sprinkler mandatory for such a company?

Thanks in advance.

Regards,
CIPLHR

From India, Madras
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If a fire starts in the office environment, the usual policy is to get everyone out as quickly as possible and call the fire brigade. However, there may be times when a fire is discovered at an early stage and is considered controllable. In such a situation, an attempt to extinguish the fire using fire extinguishing equipment should only be made if:

• Sufficient training has been provided on using fire extinguishers.
• An escape route has been established.

However, fires can spread very quickly, and if the situation escalates and becomes uncontrollable, it must be abandoned immediately.

Choosing Extinguishers

It is essential that every fire extinguisher on site conforms to the appropriate standard.

Where to Site Your Extinguishers

Fire extinguishers should be bracket or stand mounted:

• Where they can be reached quickly (staff should be no more than 30 metres away from a fire extinguisher).
• Preferably on an escape route near to alarm points.
• Where they are clearly visible, i.e., not hidden behind doors or furniture.
• Fixed to the wall at a height where it can be reached (up to 4 kg - 1.5m from the floor, more than 4 kg at about 1m from the floor).
• Where they are accessible at all times (i.e., not used as door props).
• Away from any heat source (e.g., radiators, kettles, cookers, etc.).

Maintenance by a Competent Person

As pressurised vessels, fire extinguishers themselves carry potential risks. It may also be the difference between life and death if fire extinguishers work when needed. It is strongly advised that all fire extinguishers are properly serviced by a registered company.

Basic Inspection by the User

Instructions on fire extinguisher self-maintenance should be provided by the manufacturer. If an extinguisher has been used completely or partially, it must be recharged according to the manufacturer's instructions. Good practice is to check for correct installation and apparent function on a weekly basis.

Types of Extinguisher

In office environments, there are four main types of extinguisher. They are colour-coded so that you can identify them quickly and use the right extinguisher for the right purpose.

• Water (Red) — For use on solids only such as wood, plastics. Extinguishes by cooling. Not safe on petrol/oil fires and not to be used near electrical equipment.
• Dry Powder (Blue or Red with a Blue strip) — Can be used on solids such as wood, plastics, and liquids such as petrol/paints. Safe to use near electrical appliances. Extinguishes by smothering the flames. Does not cool very well.
• Foam (Cream or Red with a cream strip) — Can be used on solids such as wood, plastics, and liquids such as petrol/paints. Safe to use near electrical appliances. Extinguishes by smothering liquids with film or cooling and smothering solids.
• CO2 (Black or Red with a Black strip) — Suitable mostly for liquids only such as petrol/paints. Safe to use near electrical appliances. Extinguishes by displacing oxygen. Does not cool and is not suitable for solids.
• Fire Blanket — Very effective at smothering the fire and denying it oxygen but has to cover entire burning areas. Good for intense but localized areas such as chip fat fires.

Number of Fire Extinguishers Required

The following information is provided as a rough guide only; a proper fire risk assessment should be made to analyze the exact requirements.

As a rule of thumb, offices and shops should have one 13A extinguisher covering 200 square metres of floor area. (13A is usually proportional to a minimum 6-litre foam or 9-litre water). To calculate how many 13A extinguishers are required, divide the floor area by 200 and round up.

There should be a minimum of 2 extinguishers per floor, unless the floor area is below 100m², in which case, one extinguisher only may suffice. Specialised extinguishers (e.g., foam, carbon dioxide) should also be considered for the risk of fires to specialist materials/circumstances (e.g., flammable liquids, electrical equipment, etc.).

Signs

The Health & Safety (Safety Signs & Signals) regulations 1996 require that where extinguishers are placed in positions hidden from direct view, their location should be indicated by signs and, where appropriate, directional arrows. It is recommended that fire signs are used in any event as they are a low-cost way of increasing safety in the office environment.

I hope this fulfills your query. Let me know if you have any questions.

Thanks & Be safe

Regards,
Raghu

From United States, Fpo
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If a fire starts in the office environment, the usual policy is to get everyone out as quickly as possible and call the fire brigade. However, there may be times when a fire is discovered at an early stage and is considered controllable. In such a situation, an attempt to extinguish the fire using fire extinguishing equipment should only be made if:

• Sufficient training has been provided on using fire extinguishers
• An escape route has been established

However, fires can spread very quickly, and if the situation escalates and becomes uncontrollable, then it must be abandoned immediately.

Choosing Extinguishers

It is essential that every fire extinguisher on-site conforms to the appropriate Standard.

Where to Site Your Extinguishers

Fire extinguishers should be bracket or stand-mounted:

• Where they can be reached quickly (staff should be no more than 30 meters away from a fire extinguisher)
• Preferably on an escape route near alarm points
• Where they are clearly visible, i.e., not hidden behind doors or furniture
• Fixed to the wall at a height where it can be reached (up to 4 kg - 1.5m from the floor, more than 4kg at about 1m from the floor)
• Where they are accessible at all times (i.e., not used as door props)
• Away from any heat source (e.g., radiators, kettles, cookers, etc.)

Maintenance by a Competent Person

As pressurized vessels, fire extinguishers themselves carry potential risks. It may be the difference between life and death if fire extinguishers work when needed. It is strongly advised that all fire extinguishers are properly serviced by a registered company.

Basic Inspection by the User

Instructions on fire extinguisher self-maintenance should be provided by the manufacturer. If an extinguisher has been used completely or partially, it must be recharged according to the manufacturers' instructions.

Good practice is to check for correct installation and apparent function on a weekly basis.

Types of Extinguisher

In office environments, there are four main types of extinguishers. They are color-coded so that you can identify them quickly and use the right extinguisher for the right purpose.

• Water (Red) – For use on solids only such as wood, plastics. Extinguishes by cooling. Not safe on petrol/oil fires + not to be used near electrical equipment.

• Dry Powder (Blue or Red with a Blue strip) – Can be used on solids such as wood, plastics + liquids such as petrol/paints. Safe to use near electrical appliances. Extinguishes by smothering the flames. Does not cool very well.

• Foam (Cream or Red with a cream strip) – Can be used on solids such as wood, plastics + liquids such as petrol/paints. Safe to use near electrical appliances. Extinguishes by smothering liquids with film or cooling and smothering solids.

• CO2 (Black or Red with a Black strip) – Suitable mostly for liquids only such as petrol/paints. Safe to use near electrical appliances. Extinguishes by displacing oxygen. Does not cool and not suitable for solids.

• Fire Blanket – Very effective at smothering the fire and denying it oxygen but has to cover entire burning areas. Good for intense but localized areas such as chip fat fires.

Number of Fire Extinguishers Required

The following information is provided as a rough guide only; a proper fire risk assessment should be made to analyze the exact requirements.

As a rule of thumb, offices and shops should have one 13A extinguisher covering 200 square meters of floor area. (13A is usually proportional to a minimum 6-liter foam or 9-liter water). To calculate how many 13A extinguishers are required, divide the floor area by 200 and round up.

There should be a minimum of 2 extinguishers per floor unless the floor area is below 100m², in which case, one extinguisher only may suffice.

Specialized extinguishers (e.g., foam, carbon dioxide) should also be considered for the risk of fires to specialist materials/circumstances (e.g., flammable liquids, electrical equipment, etc).

Signs

The Health & Safety (Safety Signs & Signals) regulations 1996 require that where extinguishers are placed in positions hidden from direct view, their location should be indicated by signs and, where appropriate, directional arrows.

It is recommended that fire signs are used in any event as they are a low-cost way of increasing safety in the office environment.

I hope it fulfills your query. Let me know if you have any questions.

Thanks & Be safe

Regards,
Raghu

From United States, Fpo
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Fire Extinguisher Installation for a 1660 sq ft Office

For a 1660 sq ft office, you may install about 6 ABC type fire extinguishers. The number of extinguishers needed depends on the type of activity and the number of personnel planned to work in the office. You may also consider a mix of water CO2 type, dry chemical powder, and CO2 type fire extinguishers. Ideally, you may require 2 water CO2 type, 1 DCP type, and 3 CO2 type fire extinguishers, especially if you have a significant number of computers in the office.

If there are cabins in the office, you can install one extinguisher outside each cabin near the entrance. If the entrances of two cabins are close to each other, you can economize on the number of extinguishers. There is no strict rule on the number and type of extinguishers required. It is in your best interest to install them for safety. As per regulations, an adequate number of extinguishers must be installed, with adequacy determined by your own judgment and conviction.

From India, Jamnagar
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One extinguisher is required per 250 sq. ft., making a total of 7 extinguishers of 10 Kg capacity. However, in the office, you need to place CO2-type extinguishers due to computers, electricity, and proximity to the electrical panel. ABC extinguishers are commonly used, but in the event of usage, powder may spread around, hampering visibility. The powder in ABC/DCP extinguishers ranges from 5 to 50 microns in diameter.

Correct usage and training should be provided to all employees. For further information, please provide details about the office, including the number of floors, fire load (if calculated), number of exits, and whether a gas flooding system is installed, for accurate numbers and types.

Regards

From India, Mumbai
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Dear Raghu,

As per your suggestion, the wall-mounted fire extinguisher height is 1.5 meters. Can you suggest a legal way according to Indian standards (related to any section of FA1948 or any rule of MFR 1963)? I know in the US it's 1.5 meters, in Australia it ranges from 1.2 meters to 2 meters, and in OSHA, for small fire extinguishers it's 5 feet and for large ones 3 feet. However, I couldn't find the specific regulation for India.

Regards,
Krunal Mhatre

From India, Boisar
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Dear Ciplhr,
– some query, some answer!
As I take it, the post is to gain information on provision of fire extinguishers for a 1660 sq.ft building:
1. Number of fire extinguishers needed.
2. Mandatory type.
3. Weight.
4. On legal implications and
5. Sprinkler is mandatory or not?
Did you get satisfactory answers?
Can someone provide answers for the above questions only!
I am waiting to see the responses please.
Regards,
Kesava Pillai

From India, Kollam
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KK
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dipil
730

If you see the starting date of this thread, it's Dec' 2010. So replying to this thread may not be helping the thread starter for sure. But the way you took it is great. Let's see if some other forum members are also interested in participating. I shall come back to you with very specific inputs based on NBC & IS standards. Now, I'm a little hectic with other tasks until coming Sunday. Really nice to see you back into action as before in the CiteHR Safety forum.

Participation Encouragement

@ Krunal: Try to answer the queries put up by Mr. Kesava Pillai and be a part of the discussion. There is a legal citation regarding the height of placement of fire extinguishers which you can find in most of the State Factory Rules.


From India
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Dear Dipil and other friends,

When there is a query, one earnestly seeks a solution for the specific issue at hand. Instead of extending a helping hand, if all that we know is thrown at them and they are asked to pick what they want, it may confuse them. It is a kind of harassment for posting the query.

Here the questions are simple as I mentioned earlier:

1) How many fire extinguishers have to be kept in an office which is to be put up across 1660 sq. ft.?

2) What type of extinguishers are mandatory?

3) What is the weight of the extinguisher and the number of extinguishers to be installed?

4) Is there any legal implication for installing fire extinguishers?

5) Is a water sprinkler mandatory for such a company?

Appropriate answers to me are:

1. The number and size of fire extinguishers required for any particular premises shall be determined by the appropriate authority, taking into consideration the severity of incipient fire anticipated, the rapidity with which a fire may spread, the intensity of heat that may be developed, accessibility to fire, type of extinguisher, the smoke contributed by the burning material, special features of building construction, and nature of occupancy (single or mixed) and electrical fitting equipment, etc., installed therein. The required number of fire extinguishers may be determined by considering any single extinguisher of a suitable type or a combination of two or more types. (IS 2190 1992) Nobody can give a perfect answer to this question. Whoever suggests a reply assumes things. The best answer you can pick is that from wherever you stand within 15 meters of travel, there should be a fire extinguisher. A minimum of 1 fire extinguisher should be available per 100 sq. meters. You may provide any number above this.

2. All types are accepted as mandatory, including a 200-liter barrel full of water with a bucket. However, it is just the site conditions that require consideration. Instead of confusing with different types, better select only one type – ABC that will suffice.

3. There is no hard and fast rule regarding size or weight. However, it is best to go for 10 kg capacity extinguishers.

4. Yes, there are legal implications. You may please refer to the National Building Code 2005, Part 4, “Fire and Life Safety” if you are interested.

5. A sprinkler system is not required as per the above building code. You can refer to the table provided in it.

Regards,

Kesava Pillai

From India, Kollam
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dipil
730

I do agree with your point that we should try to help others by posting relevant answers to their concerns. I am trying to do that nowadays. My reply to this post happened long back, so it may not be that relevant. As I said, this post was created years back in 2010, and as someone replied to this with his new query (regarding the height of placement of extinguisher by Mr. Krunal), this post came up, and you found this interesting and replied. It's well appreciated, and as always, I am just eagerly waiting for every post of yours as it always provides great learning for me. Even though we have not yet talked or met, I consider you my ideal personality in this profession and have mentioned that in many forums. Examples of discussions that still benefit me and are used in front of others include "AC or DC is more dangerous and why?" and "LPG or DA is more dangerous and why?". Most of the safety and technical people I meet are in confusion, and with the inputs you've given through this forum, I am able to satisfy them. Nowadays, I am trying to give my best to the forum by managing my time.

Fire Extinguishers Recommendations

Now let me add a few things to what you have replied regarding fire extinguishers:

1. Annexure B of IS 2190:2010 provides "Recommendations for Installation of Fire Extinguishers" based on the type of occupancy and nature of occupancy. The thread starter used two terms in the query, such as Office and Company. So we have to first ensure whether it's for an office building or a company, as the requirements differ. You can refer to the said annexure for more details. For example, an office building with special hazards as per this annexure has to install fire extinguishers as stated below:

"One 4.5 kg capacity carbon dioxide or one 2/3 kg capacity clean agent extinguisher to be placed for every 100 m² of floor area or part thereof, with a minimum of two extinguishers so located as to be available within a 10 m radius."

2. Refer to IS 2190 and select which type your industry or office requires. In the case of companies registered under the Factories Act 1948, do refer to the applicable state factory rules in addition to the National Building Code 2005 and IS 2190.

3. Refer to IS 2190 Annex B.

4. Yes, as per NBC and relevant state factory rules.

5. Automatic Sprinkler Systems are mandatory to install as per the National Building Code, depending upon the type of building occupancy, floor, and basement built-up area. For example, in the case of an office building:

- Up to 10 meters, and if a basement is present with an area exceeding 200 m², an Automatic Sprinkler System is mandatory.
- Above 30 meters, it should be installed in the entire building.

More details can be obtained from Table 23, Part 4 - Fire and Life Safety of the National Building Code.

Regards

From India
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dipil
730

The below is from the Gujarat State Factory Rule 1963. First-aid firefighting equipment shall be placed on platforms or in cabinets in such a way that their bottom is 750 mm above the floor level. Fire buckets shall be placed on hooks attached to a suitable stand or wall in such a way that their bottom is 750 mm above the floor level. Such equipment, if placed outside the building, shall be under sheds or covers. Try to search for a similar requirement from your relevant state factory rules. If you find something, follow that. It is more or less similar to the above. Some of the state factory rules are silent on this requirement. No other legislation, such as NBC or IS, has this specification on the placement height. Hope this helps.


From India
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