Anisur Rahman Zuall

  জাতীয় বিল্ডিং কোড অনুযায়ী, কাজের সময় একজন শ্রমিকের মাথায় হেলমেট পরা বাধ্যতামূলক। যারা কংক্রিটের কাজে যুক্ত, তাদের হাতে গ্লাভসও পরতে হচোখের জন্য ক্ষতিকর কাজ যেমন ড্রিলিং, ওয়েল্ডিং, ঢালাইয়ের সময় শ্রমিকদের চশমা ব্যবহার বাধ্যতামূলক। ওয়েল্ডার ও গ্যাস কাটার ব্যবহারের সময় রক্ষামূলক সরঞ্জাম যেমন গ্লাভস, নিরাপত্তা বুট, এপ্রন ব্যবহার করতে ভবনের উপরে কাজ করার সময় শ্রমিকের নিরাপত্তায় বেল্ট ব্যবহারও বাধ্যতামূলক করা হয়েছে ন্যাশনাল বিল্ডিং কোড. তবে রাজধানীর বিভিন্ন এলাকায় দেখা যায়, বেশিরভাগ জায়গায় উপেক্ষিত শ্রমিকদের নিরাপত্তার বিষয. আর এসব অভিযোগ অস্বীকার করে আবাসন ব্যবসায়ীদের সংগঠন রিহ্যাব বলেছে, নিরাপত্তার ব্যবস্থা নেওয়া হয় বলেই ‘অন্যান্য খাতের তুলনায় আবাসন খাতে দুর্ঘটনার হার কআর শ্রমিক নিরাপত্তার বিষয়টি যাদের দেখার কথা, সেই কলকারখানা ও প্রতিষ্ঠান পরিদর্শন অধিদপ্তর বলছে লোকবল সঙ্কটের কথা।. বাংলাদেশ ইনস্টিটিউট অব লেবার স্টাডিজের হিসাবে, ২০০৫ সাল থেকে ২০১৬ সাল পর্যন্ত সারাদেশে ১ হাজার ১৯৬ জন নির্মাণ শ্রমিক মারা গেছেন কাজের সময় দুর্ঘটনায়। এ সংস্থা বলছে, প্রায়ই দুর্ঘটনায় আহত

  Carbon Dioxide Agent: Carbon dioxide is a compressed gas agent and is commonly referred to as CO2, the agent is retained as a liquid at 800 to 900 psi at temperatures below 31°C, and is self-expelling. Matching Hazard to carbon dioxide extinguishers: Although rated for use on Class B and C fires, it is often effectively used on small Class A fires. How Carbon Dioxide Extinguishes Fire? Carbon dioxide prevents combustion by displacing the oxygen in the air surrounding a fire. Cooling the fuel, The rapid expansion and pressure reduction of the pressurized liquid carbon dioxide in the cylinder results in the cooling and refrigeration effect. Advantages: CO2 extinguishers don't leave a residue, a consideration that may be important in laboratories and in areas in which food is prepared or electronic equipment is present. Disadvantages CO2 extinguishers have a relatively short range because the agent is expelled in the form of a gas/snow cloud. CO2 extinguishers are affected by wind o

Gypsum is approximately 21 percent by weight chemically combined water which greatly contributes to its effectiveness as a fire resistive barrier. When gypsum drywall is exposed to fire, the water is slowly released as steam, effectively retarding heat transmission. Fire rated gypsum drywall is more fire resistant because it contains glass fiber reinforcement and other additives within its specially formulated gypsum core to help it hold up longer to a fire exposure. Fire  rated drywall is referred to as “Type X” and must be third-party certified by an independent testing and listing agency such as UL (Underwriters Laboratories Inc.) and ULC (Underwriters’ Laboratories of Canada) to meet the fire performance requirements prescribed in the ASTM C1396 (CAN/CSA-A82.27) Standard Specification for Gypsum Board. Types of Fire Rated Gypsum: Type X fire rated gypsum drywall that is 5/8 -inch (15.9mm) thick and installed on each side of nominal 2-inch x 4-inch (38x89mm) wood

1) What are the types of pump sets used and why in fire fighting? Jockey pump – used when there is a pressure drop. Electric pump – Main pump starts instantly in case of fire and will cutoff. Diesel pump – used in case of power shut down & Stand by Pump. 2) What is fire alarm check valve? It allows flow in one direction and prevents backward flow and with this gives signal to BMS with alarms. 3) What is FM-200 and where is it used? Heptafloropropane is colorless, liquefied compressed gas. It is stored as a liquid and dispensed into the hazard as a colorless, eclectically non-conductive vapor that is clear and does not obscure vision. It is used in communication rooms, electrical rooms, computer rooms etc.. 4) Types of detectors? Smoke, Heat & Multi detectors etc... 5) Do we use strainers in fire pumps? Why? No, we don’t use it because the water coming is portable usually only in cases where we are using river or lake water then we require strainers. Else we prefe

1. SCOPE & PURPOSE 1.1 This “Method Statement” covers the nature and type of work for the Installation of Fire Fighting Pipes and fitting with Accessories and frequency at which the inspections are to be carried out. 1.2 This method statement gives guidelines contained herein so as to ensure that the job execution complies with the requirement of the specification and the authorities concerned and serves the intended purpose to satisfactory level. 1.3 This procedure is to be read in conjunction with the relevant ITP, outlining the responsibility and the quality verification to be performed by various parties. 2. REFERENCES & RELATED DOCUMENTS: 2.1 Project Quality Plan – PQP 2.2 Quality Control Plan – QCP 2.3 Specification Sec 2.4 Approved MAR 2.5 Approved Shop Drawings. 2.6 Manufacturer Product Data Sheets 2.7 Manufacturer Installation Recommendations 3 ABBREVIATIONS: 3.1 Ref. Quality Control Plan 4 RESPONSIBILITIES: 4.1 Ref. Quality Control

General Fire Fighting Equipment Fire fighting systems and equipment vary depending on the age, size, use and type of building construction. A building may contain some or all of the following features: fire extinguishers fire hose reels fire hydrant systems automatic sprinkler systems. Fire extinguishers Fire extinguishers are provided for a 'first attack' fire fighting measure, generally undertaken by the occupants of the building before the fire service arrives. It is important that occupants are familiar with which extinguisher type to use on which fire. Most fires start as a small fire and may be extinguished if the correct type and amount of extinguishing agent is applied whilst the fire is small and controllable. The principle fire extinguisher types currently available include: Extinguishing Agent     Principle Use Water wood and paper fires - not electrical Foam flammable liquid fires - not electrical Carbon dioxide electrical fires Dry Che