Osborn Engineering understands the success of fire protection and life safety systems rely not only on their individual performance, but also on how they all work together. One fire alarm initiating device may have numerous outputs to various interconnected adjacent systems such as opening or closing of dampers or doors, starting or stopping of fans, recall or shunting of elevators, overrides to lighting controls, muting of background audio systems, and overrides to show effects. A basic fire alarm test does not typically include the end-to-end testing of the actual responses of interconnected systems beyond the fire alarm output signal to a relay. NFPA 4 Standard for Integrated Fire Protection and Life Safety Systems Testing provides guidance to all stakeholders in the overall process of Integrated Safety Systems Testing (ISST). There are two primary buildings that require NFPA 4 testing: • Life safety systems in high-rise buildings NFPA 101-§11.8.9 & IBC §901.6.2.1 • Life safety systems that include smoke control NFPA 101-§9.3.5 & IBC §901.6.2.2 This testing should be conducted in new buildings prior to issuance of Certificate of Occupancy and for existing buildings, at intervals not to exceed 10 years or as specified in an approved NFPA 4 ISST plan. It is also recommended to conduct retesting following the repair or replacement of equipment. In these cases, retesting is limited to verification of the responses for fire protection or life safety functions initiated by repaired or replaced equipment. As Jurisdictions begin to adopt NFPA 4 and ISS testing, Osborn Engineering is prepared to provide guidance to building owners and project teams. In Florida and similar jurisdictions NFPA 101 adoption already drives ISST even for existing buildings. Don’t wait to reach out. Let our life safety experts help lead the process.
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Fire Protection System: T&C Fire Pump Testing and Commissioning (T&C) Procedures 1. Pre-Commissioning Inspection: Physical Check: 👨🚒Verify pump installation follows design and NFPA 20 standards. 👨🚒Ensure proper alignment and no leaks in suction/discharge piping. 👨🚒Confirm all valves (suction, discharge, isolation) are in correct positions. Electrical (For Electric Pumps): 👨🚒Check motor wiring, control panel, and emergency power supply. Fuel/Battery (For Diesel Pumps): 👨🚒Ensure fuel tank is filled, batteries are charged, and there are no leaks. 👨🚒Control Panel: Confirm functionality of all switches, alarms, and automatic startup systems. 2. Pre-Startup Checklist: 👨🚒Lubrication & Cooling: Ensure bearings and motor are lubricated; cooling systems are operational. Valves & Piping: 👨🚒Confirm valves are in the correct operating position, bypass valves closed. Suction Source: 👨🚒Verify adequate water supply and unobstructed suction line. 3. Fire Pump Startup: Manual Start: 👨🚒Manually start the pump, check for unusual noises, vibration, and correct pressure readings. Automatic Start: 👨🚒Simulate a pressure drop; confirm automatic pump startup and proper alarms. 4. Performance Testing: Flow Test: 👨🚒Open the test header, measure flow rate and pressures, and compare with the pump’s rated capacity. Jockey Pump Test: 👨🚒Verify jockey pump maintains system pressure and stops automatically once pressure is restored. Diesel Engine Test: 👨🚒Start the diesel pump, monitor engine performance, and run for 30 minutes under load. Relief Valve Test: 👨🚒Test relief valves to confirm they open at the correct pressure and discharge properly. 5. System Shutdown: 👨🚒Gradually close the flow control valve and stop the fire pump. 👨🚒Ensure the system returns to standby mode, and all test valves are closed. 6. Post-Test Inspection: 👨🚒Check for leaks, wear, or overheating. Record test data and compare with manufacturer specifications. 👨🚒Confirm control panel alarms and indicators are working. 7. Documentation: 👨🚒Record suction/discharge pressures, flow rates, and any relevant electrical or diesel engine data. 👨🚒Submit the commissioning report to relevant authorities. 8. Handover: 👨🚒Train facility staff on pump operation and maintenance. 👨🚒Provide manuals, as-built drawings, and the commissioning report. 👨🚒Set up routine maintenance schedules as per NFPA 25 or local standards. This concise procedure ensures that the fire pump operates correctly and complies with safety standards.
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Ensuring electrical safety on construction sites isn’t just a box to check—it’s a necessity to protect lives and equipment. Failing to adhere to safety protocols can result in severe consequences, but many struggle to understand where to start. Here are key measures and best practices you need to follow for temporary power installations: - Temporary wiring should be designed and installed by a qualified electrician according to OSHA, NEC, and NFPA 70E requirements. - Plan the layout of the temporary electrical system carefully to minimize disruptions later. - Protect temporary power equipment from vehicle traffic and ensure access is restricted to authorized personnel only. - Confirm all equipment, receptacles, and cords are properly grounded and use GFCI protection for all applicable outlets. - Regularly inspect wires and cords for damage and maintain them in a safe manner. - Test GFCIs monthly and maintain a log for compliance. - Ensure equipment is rated for the environment where it will be used and keep unused openings covered. - Implement lockout/tagout procedures when maintaining or altering temporary power setups. By following these guidelines, electricians and construction teams can significantly reduce the risks associated with temporary power installations. Secure your construction site and safeguard your team by adhering to these essential best practices. Have you implemented these in your projects? Let’s share insights and make our sites safer together.
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🔥🚨 Engineering Perspectives on Fire Suppression System Control Panel Installation Heights 🚨🔥 As fire safety engineers, one critical design consideration we encounter is the optimal installation height for Fire Suppression System Control Panels. The debate around positioning these panels above head level warrants a closer examination, grounded in accessibility, visibility, and regulatory compliance. Accessibility: A Cornerstone of System Design 🛠️ The paramount concern in fire suppression system design is ensuring that control panels are universally accessible. Emergency scenarios necessitate immediate and unfettered access to these systems. Positioning panels at or below head level caters to a broad demographic, enabling both rapid response to fire alarms and routine system disarmament by individuals of varying statures without the need for auxiliary equipment. Visibility for Efficient Operation and Maintenance 👀 Operational visibility is another critical factor influencing panel installation height. Panels positioned within the direct line of sight facilitate ongoing monitoring and swift identification of system alerts or faults. This visibility is not only crucial during emergencies but also supports efficient maintenance and inspection processes, ensuring system integrity and reliability. Regulatory Compliance: Adhering to Standards 📚 Adherence to fire safety standards and building codes is non-negotiable. These regulations, which may specify guidelines for control panel installation heights, are predicated on extensive empirical research and expert consensus. They aim to optimize fire suppression system efficacy while safeguarding occupant safety. Deviating from these standards not only compromises safety but may also entail legal and financial ramifications. While the notion of installing Fire Suppression System Control Panels above head level might seem advantageous for spatial or aesthetic reasons, the principles of accessibility, visibility, and compliance present compelling arguments for more conventional installation heights. As we continue to refine our practices in fire safety engineering, let's prioritize designs that ensure our systems are as effective and accessible as possible, underlining our commitment to protecting lives and property. #FireSafety #Engineering #FireProtection #SafetyDesign #Accessibility
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SAFETY ANALYSIS FOR DESIGN OF FLARES & RELIEF SYSTEMS 1) Safety Gates Considerations: PRV are safeguards. Ideally, each relief valve should be “opened”. This is most effectively covered cause within each user node. The intent is to look at the relief location and identify any specific issues with that valve opening. The likelihood that they function as required is factored into any scenario in which they are applicable. Therefore, any failure that could occur within the effluent handling system, that would defeat the relief valve, should inherently already be accounted for in the failure probability. 2) Flare system considerations: - Consider radiation at grade, noise, toxics against where an operator is expected to go during emergencies or where there may be an impact to the public e.g., fence lines. - Is operations aware of pockets in the piping resulting in liquid traps, or un-swept pipes where H2S or CO2 can cause accelerated corrosion? The PHA and FHA teams should perform sanity checks to confirm any cause within the flare system that results in the defeat of one or more upstream pressure relief devices has a likelihood substantially less than the Independent Protection Layer. The entire flare system must be designed so that upstream relief devices meet their specified probability of failure on demand. Failures that could occur in a flare system and potentially impact upstream relief devices include: · Failure to drain KO drum KO drum level instrumentation failure; · Manual valve on the header inadvertently closed; · Freezing resulting in Flare Seal blockage (add glycol to seal pots); · Freezing conditions resulting in water freezing within the flare header on contacting uninsulated cold piping restricting flow; · Hydrate formation in headers: The formation of a hydrate requires three conditions: low temperature and high pressure; the presence of hydrate formers such as CH4, C2H4, CO2 and H2S; and sufficient quantities of water and formation time. · Polymerization of susceptible fluids in the header, · Flame arrestor plugging; · Staggered/staged flares with rupture disks around control valves. A PHA/FHA is not intended to analyze risk associated with design errors or omissions. Reviewing the flare design against the requirements of API 521, EPA 40CFR / Quad-0 (or other standards), is akin elsewhere in a PHA/FHA to asking if there are deviations. If deviations are identified through the PHA/FHA process, it should be noted and recommended for correction, but detailed analysis is not a practical expectation. Instead, it is important that the flare design be available as a process safety reference to cover safety issues if necessary. Any Questions? Happy to Chat! Support with your HAZOP Study? Happy to Participate!
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Fire safety, smoke control engineering and HVAC system. Details on a computer software used to undertake the calculations for smoke control designs. Find the rest on the blog: https://lnkd.in/e4ewPKMy #depressurisationsystems #HVAC #computermodelling
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Senior Facilities Engineer |10+ Years Exp | Project management | Operation management | Trouble shooting | Root Cause analysis | MEP | Strategic Planning | Strategic thinking | Critical thinking.
Building Management System The building management system (BMS) is an overarching control system that is responsible for the automatic regulation and control of non-GMP facility subsystems, maintaining predefined parameters (or set points) and the control of their functionality. The major aim of the BMS is to guarantee the safety of facility operation, while also monitoring and optimizing the use and efficiency of its supervised subsystems to allow more efficient operation. Examples of the major subsystems controlled by the BMS are: 1. HVAC System- Monitoring and control of all HVAC Equipments. 2. Hot Water System and Central Heating. Temperature and pump control monitoring via the BMS allows for a proper functioning of hot water distribution through the facility. 3. Sprinkler System (for fire safety). Monitoring 4. Access control. 5.Electrical Monitoring System.
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This video was taken during the commissioning and acceptance testing phase of a new building. It captures the moment when the fire protection systems were tested to ensure compliance and operational readiness for obtaining the building’s occupancy certification. The building in question consists of furnished residential units. Justification for Flushing Black Steel Pipe (Schedule 40) as per NFPA 13 NFPA 13 Flushing Requirements NFPA 13 mandates the flushing of all underground piping, including black steel pipes (Schedule 40), to ensure that the fire protection system operates efficiently and without obstruction. Specifically, Section 6.10.2.1 of NFPA 13 outlines the following requirements: 1. **Flushing of Underground Piping**: - All underground piping, from the water supply to the system riser, and lead-in connections to the system riser, must be thoroughly flushed before connection to the downstream fire protection system piping【16:1†source】. - The flushing operation must continue until the water runs clear, indicating the removal of debris and foreign material【16:1†source】. 2. **Flow Rate for Flushing**: - The minimum rate of flow required for flushing is specified to produce a velocity of at least 10 ft/sec (3.0 m/sec) in the piping. For example, a 4-inch pipe requires a flow rate of 390 gallons per minute (gpm) to achieve this velocity【16:1†source】. Importance of Flushing 1. **Removal of Debris**: - Flushing removes debris, rust, and scale that can accumulate in black steel pipes. These materials can obstruct the flow of water and compromise the effectiveness of the fire suppression system. 2. **Preventing Corrosion**: - Accumulated debris and standing water can lead to internal corrosion of black steel pipes, reducing the pipe’s integrity and lifespan. 3. **Ensuring System Performance**: - Clear pipes ensure that the system can deliver the necessary water flow and pressure during a fire emergency, which is critical for the suppression of fires and protection of occupants and property. Consequences of Inadequate Flushing 1. System Blockage: - Failure to properly flush the system can result in blockages that impede water flow, rendering parts of the fire protection system ineffective. 2. Increased Risk of Corrosion: - Inadequate flushing leaves debris and contaminants that accelerate the corrosion process, leading to potential leaks and pipe failure. 3. Operational Failure: - During a fire event, the presence of debris can cause sprinkler heads to malfunction or fail to activate, significantly increasing the risk of uncontrolled fire spread. 4. Pressure Drop - Debris and scale build-up can cause a significant drop in water pressure, meaning that the system may not meet the required psi (pounds per square inch) to effectively combat a fire. #nfpa #nfpa13 #cfps #fire #test #engineer #sbc #nfpa25 #neom
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PMP | CPEM | Sr. Mechanical Engineer @ Salem Husni Engineering Consultants SHEC | Project Management | Life Safety | design & supervision | firestop inspections
🔥 Addressing Common Deficiencies in Through-Penetration Firestop Installations 🔥 In firestop installations, especially with through penetrations, attention to detail is critical for ensuring safety and compliance. Here are some common deficiencies to be aware of: 1. Incorrect Annular Space: The annular space, or the gap between a penetrant and the opening, is crucial for effective firestopping. Exceeding the minimum or maximum limits set in tested systems can compromise performance. Insufficient space can prevent the firestop material from expanding properly, while excessive space may reduce the structural integrity needed during fire exposure. Adhering to the prescribed dimensions ensures optimal performance and compliance with safety standards. 2. Insufficient Depth of Fill Material: Each tested system specifies a minimum depth of firestop material. Installing less than this minimum can lead to premature failure or inadequate performance during a fire. Different types of firestop materials, whether intumescent, ablative, or insulating, rely on proper depth to function effectively. Insufficient depth could allow fire or hot gases to breach the system, thereby jeopardizing safety. 3. Exceeding “Percent Fill” for Cable Penetrations: For cable bundle and tray penetrations, there are strict limits on the percentage of fill allowed. This percentage reflects how much space within the opening is occupied by cables versus the space available for firestop materials. Exceeding this limit can adversely affect the performance of the firestop system. Proper calculation is essential, and educating staff on these parameters can significantly enhance compliance. 4. Understanding Material Properties: Each type of firestop material has specific characteristics that influence how it should be installed. Misunderstanding these properties can lead to installation errors that compromise fire safety. Training and awareness about the properties of intumescent, ablative, and sealing firestop materials can bolster installation effectiveness. 5. Education and Training Are Key: The complexities surrounding through-penetration firestop installations require ongoing education for all team members. Frequent training can help reduce the occurrence of these deficiencies and ensure that installations meet fire safety standards. #firestop #firestopping
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Reliable Engineering Firm for Your New Facility’s Fire Sprinkler System When it comes to protecting your new facility, one of the most critical components is the fire sprinkler system. Ensuring that this system is designed, installed, and maintained correctly is vital for the safety of the building’s occupants and the protection of your assets. Contracting a reliable engineering firm to develop your fire sprinkler system is not just a good idea—it’s a necessity. Here’s why: https://lnkd.in/gfKFSFSp Expertise and Experience: A reputable engineering firm brings a wealth of expertise and experience to the table. These professionals understand the complexities involved in designing fire sprinkler systems that meet stringent safety codes and standards. Their experience with a variety of projects equips them to handle unique challenges and provide innovative solutions tailored to your facility’s specific needs. Compliance with Regulations: Fire safety regulations are rigorous and constantly evolving. A reliable engineering firm stays up-to-date with the latest codes and standards, ensuring that your fire sprinkler system is fully compliant. This not only protects your facility from legal issues but also ensures the safety and well-being of its occupants. Customized Design: Every facility has its own unique requirements based on its layout, usage, and potential fire hazards. A trustworthy engineering firm will conduct a thorough analysis of your building and develop a customized fire sprinkler system that provides optimal protection. This tailored approach ensures that all areas of your facility are adequately covered, reducing the risk of fire damage. Quality Assurance: Hiring a reliable engineering firm guarantees high-quality work. These firms adhere to strict quality control processes during the design and installation phases, ensuring that the fire sprinkler system functions correctly and reliably. High-quality materials and precise installation practices translate into a system that performs effectively when needed most. Cost Efficiency: While it might be tempting to cut corners by hiring a less experienced firm or attempting a DIY approach, this often leads to higher costs in the long run. A reputable engineering firm can optimize the design and installation process, helping to avoid costly mistakes and ensuring the system’s longevity. Their efficient project management minimizes delays and keeps the project within budget. Peace of Mind: Ultimately, contracting a reliable engineering firm provides peace of mind. You can be confident that your fire sprinkler system is designed and installed by professionals who prioritize safety and quality. In the event of a fire, you can trust that the system will perform as expected, protecting lives and property
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