Emergency lighting circuits often use. Emergency Lighting circuit under Lighting Circuits -7880- : Next. Emergency Lighting Mj Newton Electrical. Jul 9, 2023 · Emergency Lighting Circuits Often Use 09 Jul 2023. The testing involves cutting the power to the facility's emergency lighting units as if there were having an actual emergency. 1 foot candles (luminous flux per unit area) at floor or tread level in places such as exit ways, principal exit routes, corridors serving the public, underground walkways, and more. They also help reduce wasted time and costs. Now, what will happen is, whenever the power cut occur, the circuit first sense if it is dark First, let’s review what constitutes an emergency system. Emergency lighting on same circuits as general lighting Feb 9, 2018 · Evolution of Emergency Lighting. There must be a green LED indicator to confirm the charging of light. 5 lux for open areas. But the use of LEDs has proven to provide Emergency lighting fixtures should be fitted in key locations as outlined in BS 5266-1. Step 1: Determine the circuit layout and load requirements. Apr 4, 2024 · Parts List for an emergency light back up circuit. The most widely used codes in effect today are NFPA 101: Life Safety Code and International Building Code. Home Emergency Lights Upshine Lighting. Then you can have a dedicated circuit just for the emergency lights. Escape route lighting is the part of an emergency lighting system provided to enable the swift and safe evacuation of a building by illuminating its escape Jul 27, 2020 · Emergency lighting is installed so that it turns on automatically where there is no power to the main lighting circuit. Emergency light circuit diagram Emergency light circuit: a comprehensive guide Simple led emergency light circuit. Place the sign or fixture canopy onto the electrical box, making sure the long plate screws pass through the holes. Question: Lighting contactors Sep 11, 2023 · This new section recognizes Class 2 emergency lighting systems that could use power over ethernet technology or low-power LED luminaires. Floor plan. They would need to be conversant with BS 5266-1- 2011 Emergency lighting-Part 1: Code of practice for emergency lighting of premises. approximate the heat generated in the motor. (by bending away from each other) Electrical 200, Module 11, 26211 Learn with flashcards, games, and more — for free. The article describes a very simple homemade emergency light circuit Oct 18, 2023 · Emergency Lighting Circuits Often Use 18 Oct 2023. 2. As new technologies are developed and those technologies are used in new ways, codes and standards evolve to insure the safety of the public. can regular lighting wiring and emergency lighting wiring be in the same raceway? no. When power is lost, emergency lighting is all that is left to help you navigate a building as safely as possible. Emergency lights 1 An emergency lighting circuit diagram Simple emergency light. - average illumination level of 10 lux floor or tread level. The fixed wiring which runs through the walls/ceilings between the fixture and the power supply is refereed to as “cable” whereas the wire Nov 17, 2005 · Re: Breaker "clips" for fire alarm circuit? I know that the square D part # is QO1LO, but I'm not sure what they're called for sure. Apr 1, 2023 · Emergency lighting diagram circuit exitCircuit emergency light lighting electronic circuits diagrams control digital volume led gr next load above click size clap remote con Emergency light circuit: a comprehensive guideEmergency light circuit lighting diagram electrical exit wiring led lights sign drawing circuits simple electric board system Jan 10, 2022 · Pull the circuit wiring through the center hole in the plate and fasten the plate to the electrical box. Sep 20, 2019 · Connect the ground wire if your emergency light fixture requires it. May 19, 2023 · Emergency Lighting Circuits Often Use 19 May 2023. Craig Lanham and Steve Terry February 9, 2018 Electrical Safety January/February 2018. 3V to 32V. Mar 15, 2022 · 30-second tests every 30 days to ensure required illumination. All Diodes = 1N5402 for battery up to 20 AH, 1N4007, two in parallel for 10-20 AH battery, and 1N4007 for below 10 AH. solid state relays have control voltages of. Feb 13, 2019 · By Luke Gibbeson 13/02/2019. Primarily, they address the need for a reliable Feb 4, 2020 · A: During a power outage or emergency such as a fire, evacuation is often necessary and having proper emergency lighting is essential. Light levels along the path of egress are permitted to degrade by 40% over 90 optically isolated from the control side of the relay. Dedicated emergency fixtures are powered by a normal/emergency source and are on all the time. All exits and emergency lights must be tested twice yearly to ensure they illuminate via battery backup power for a duration that would allow occupants to exit a building safely in the case of a power outage (a minimum of 90 minutes in AU, 30 or 90 min in NZ depending on the site). Often the contactor forms part of a test facility assembly with Jun 18, 2020 · 700. Escape lighting is used to light up exit routes and help people to evacuate the building safely. 1. Oct 18, 2021 · Strategy No. Jan 3, 2022 · 700. Melting alloy and bimetallic overload relays are designed to. Brooklyn_Asher6. 90-minute tests every year to simulate a long-term emergency. Emergency lights must be cleaned once a year. 1. emergency lighting – part of a building’s life safety system – remains highly regulated, making system design and product selection a challenging and often confusing task. - lights floor - especially stair treads. In response to the appearance on the market of more complex emergency luminaires and Emergency lighting loads must be automatically energized or re-energized within 10 seconds of the electrical power outage, based on 700. Be sure, though, that a UL 924 device for Emergency lighting other than emergency signs must provide an average level of illumination of 10 lx or 1 foot candle t cannot be less than 1 lx or . This automatic LED emergency light device eliminates the manual ON and OFF process of the device and power supply that saves a lot of time and effort. An emergency light is a battery-backed lighting device that switches on automatically when a building experiences a power outage. Connect the common wire and the right voltage wire for the connection voltage to the electrical Jul 1, 2020 · Verifying the emergency lighting and exit marking when reopening a building The wiring diagram includes information on the placement and wiring of emergency light fixtures, emergency exit signs, and other components of the emergency lighting system. If the EPSS can handle it the lighting can remain at 100%. This means the lights will illuminate if normal electrical power is lost or the DC SHED BUS fails. Apr 6, 2024 · This is a Simple emergency light circuit with a charger that light on 30 minutes after the power outage, so use normal transistor as base of circuit. It illuminates an area to allow occupants to escape or to make safe an environment in order to evacuate it safely. Before you begin wiring emergency lights, gather all the required tools and materials. 1 Scope. We have done some modification in the circuit, by placing an LDR (Light Dependent Resistor) into it. The fixed wiring which runs through the walls/ceilings between the fixture and the power supply is refereed to as “cable” whereas the wire The wiring is within a shared junction box attached to the unit equipment, containing only the branch circuit supplying the unit equipment and the emergency circuit supplying the unit equipment. 1 for use and location of emergency lighting for fire Designing an emergency lighting system in a building is an essential, life safety code-mandated piece of the overall lighting system. When there’s a power outage, productivity ultimately declines. The definition of the term applies in Article 700 and to other rules throughout the NEC that include or reference the term “emergency systems. Question: On magnetic contactors which contacts are said to be normally open and (NO) Answer: Those that are apart when the relay is de-energized. Emergency schematics circuit lightingEmergency lighting circuit under lighting circuits -7880- : next. It includes two types of lighting: escape lighting and standby lighting. Class 2 emergency lighting circuits must be separated from lighting and power circuits and from other Class 2 circuit conductors. Preview. Exit lights must be tested every 6 months. The question of the requirement for emergency lights in schools is a bit of an anomaly. - runs on battery power. In the United States, emergency lights are standard in new commercial and high occupancy residential buildings, such as college dormitories, apartments, and hotels. This change eliminated some previously allowed methods. Emergency generator fed panel available. There are three main aspects of emergency escape lighting: 1) escape route lighting; 2) open area / anti-panic area lighting; 3) high risk task area lighting. This is a distributed emergency lighting strategy that may be deployed in three different ways. Jul 5, 2022 · A step-down transformer is utilized in the Automatic LED emergency light circuit to convert the AC 220V input power source to 12V. Calculate the total load required for the emergency lights in these areas. Dec 2, 2023 · Kumpulan skema elektronika: emergency lighting schematics circuit . 19 emergency systems. Such installations shall provide either of the following: This automatic LED emergency light device eliminates the manual ON and OFF process of the device and power supply that saves a lot of time and effort. The Code addresses those construction, protection, and occupancy features necessary to minimize danger to life from the effects of fire Aug 17, 2018 · Emergency and standby power systems. Study with Quizlet and memorize flashcards containing terms like bring onamls if the voltage drops to a point where lights might not work, sense a low voltage battery and auto disconnects the light to prevent deep discharge, minimum emergency lamp time on battery and more. BS 5266-1 is a code of practice giving detailed guidance on the application and practice of emergency lighting. The minimum legal requirements stipulated by the Australian Standard include: Emergency lights must run for a minimum of 90 minutes on battery. Regulatory Reform (Fire Safety) Order 2005: This legislation focuses on fire safety in commercial spaces, including HMOs. This emergency lamp will work for more than 8 hours (depending the battery capacity and the power consumed by the LEDs). Remodeling a hospital floor. The results are savings in time and money. Emergency lights should be installed along corridors, on stairs, near fire exits and fire extinguishers or fire alarm call points as well as at exit doors. These may include wire cutters, wire strippers, electrical tape, wire nuts, a screwdriver, emergency light fixtures, and the appropriate electrical cables. Emergency lighting is very common in pathways and stairs along exit routes, but can be found To ensure that commercial buildings provide a safe means for egress, the Life Safety Code requires emergency lighting in designated stairs, aisles, corridors, passageways leading to an exit, and exits that are not obvious and identifiable as exits. Simple Emergency Light - EEWeb Mar 2, 2024 · Emergency Lighting Circuits Often Use 02 Mar 2024. Apr 20, 2016 · Last Updated on March 16, 2024. This is the simple and cost effective automatic LED Emergency Light Circuit with light sensing. BS5266-1:2016: This is the specific British Standard providing detailed guidelines on emergency lighting, including where and how it should be installed and maintained. I don’t think there’s anything about not having receptacles on the same lighting circuit. low voltage. Circuit emergency light lighting electronic circuits diagrams control digital volume led gr next load above click size clap remote conWiring diagram for emergency lighting for your needs 10 automatic emergency light circuitsAutomatic lighting and emergency lighting – how they work (art100). The use of a contactor allows the emergency lights to be tested without interrupting supply to normal lighting. Feb 28, 2017 · Learn about the latest developments in emergency lighting control technology and standards, such as branch circuit emergency lighting transfer switches, automatic load control relays, and equipment with integral bypass function. Integrated Theories. Here is where the fun part is: The owner requires 2-level switching of the fixtures (inner Jan 10, 2022 · Pull the circuit wiring through the center hole in the plate and fasten the plate to the electrical box. 2 Danger to Life from Fire. The Emergency Lighting Circuits Often Use. a diamond is a widely recognized symbol used for denoting. - provides critical lighting in the event of a power failure or interruption. - must be on whenever building is occupied. Automatic Lighting and Emergency Lighting – How they work (ART100) Check Details. com. Solid-state relays normally have control voltages of. 1 fc measured along the path of egress along the floor. Remote control wiring shall be installed in accordance with. Jan 2, 2016 · 9. Emergency led light circuits circuit simple homemade automatic diagram ldr projects lighting wiring leds make diagrams battery operating saty modifications Pin by scott brown on electronics 10 automatic emergency light circuits. Throughout the duration of the tests, all emergency lighting must be fully operational. 20A. When a building loses power, however, the emergency lighting may need to use a battery to continue operating while people use its light. gr Automatic lighting and emergency lighting – how they work (art100) Reliable emergency lighting circuit diagram Emergency Jul 30, 2023 · Check Details Understanding control of emergency lighting circuits – iaei magazine. NFPA 101, Life Safety Code, shall be known as the Life Safety Code®, is cited as such, and shall be referred to herein as "this Code " or "the Code ". Additionally, a contactor can be used to switch multiple lighting circuits simultaneously with just one input, without creating an interconnect between multiple circuits. 3v to 32V. No appliances and no lamps, other than those specified as required for emergency use, shall be supplied by emergency lighting circuits. These are discrete individual units. They are becoming more common as better battery technology is available and cheaper battery technology. Article 700 applies directly to all emergency electrical systems, and this term is defined in Section 700. The minimum level of illumination varies depending on the type of building or facility, but is typically between 1 lux and 15 lux. 700-16. Using the shunt/bypass options detailed in this blog may be wise, as the installation will be simpler and more cost effective. Emergency lighting systems on the market, it has expensive. Additionally, NEC 700-15 stipulates that no appliances or lamps, except those required for emergency use, shall be supplied by emergency lighting power The emergency lighting system is an integral part of the overall design of a building to reduce anxiety and stress should a power failure take place. open the circuit when over heated. Find out how to comply with NEC Article 700 and UL 924 and 1008 requirements. Exit sign designs should follow the general standards approved in the BS 5499-4 guidelines. Web Each Emergency Light Is Equipped With A Small Circuit Board That Controls Its Various Functions, Which Include: The main purpose of the emergency lighting is to ensure people can find an exit or fire exit safely. Question: If low-voltage and high-voltage cable must be placed in parallel runs they should be separated by at least. 12 of the NEC, and must stay energized for at least 90 minutes or for the anticipated time of the building evacuation. Circuit emergency light lighting circuits electronic diagrams led gr next load above size click Automatic lighting and emergency lighting – how they work (art100) Make emergency light diy-circuit! Emergency Light | Full Circuit Diagram with Explanation. Very simple emergency lamp circuit using a single transistor Light emergency make 10 automatic emergency light circuits Key requirements include: Illumination along exit routes: Corridors, stairwells, and exits must have sufficient lighting for safe evacuation. emergency lighting control has been an ongoing debate, coupled with changes to codes and standards, as well as an increased market awareness of the issues. 36 terms. Power the circuit on and let the emergency light and its battery backup system charge for 24 hours before testing the battery backup to its full, 90 minute capability. The area directly outside of the final exit door should also be lit by an emergency light. Emergency light using transistors Reliable emergency lighting circuit diagram Emergency light circuit: a comprehensive guide. Diagram wiring schematics Emergency light circuit diagram simple Circuit emergency battery light backup power supply led arduino circuits simple mains homemade diagram dc back electronic failure make charger. Emergency lights should provide lighting for a minimum of 90 Jul 3, 2023 · Method 1: Gather the Necessary Tools and Materials. 1: Standalone emergency lighting. Loads on Emergency Branch Circuits. The introduction of next generation automatic load control relays designed and listed for use on emergency lighting circuits warrants the attention of designers and owners May 11, 2022 · Exit and emergency lights are required to help occupants safely enter and exit a building, the main requirement is wayfinding to safely evacuate all occupants. Most building codes in the US require that they be Emergency Lighting Circuits Often Use. As an electronics and communication engineer with a passion for designing electronic circuits, you can appreciate the significance of these circuits. Emergency light schematics circuit lighting Emergency light circuit diagram simple Art100 automatic. Emergency Lights 1 - LED_and_Light_Circuit - Circuit Diagram - SeekIC. 208-277Vac. 12 when the normal supply for lighting is interrupted. So an automatic LED emergency Light circuit is designed to turn ON when there is no adequate lighting or if the power supply is cut-off. As a result of the change, a building’s UL 924-listed emergency lighting components must now actively monitor normal power to ensure emergency lighting is deployed within 10 seconds of power loss. Sep 12, 2023 · Emergency lighting circuit under lighting circuits -7880- : next. gr Art100 automatic10 automatic emergency light circuits Mar 29, 2018 · Lighting provided under emergency power, when normal power is lost, is allowed to maintain an average of 1 fc and a minimum of 0. The batter ies are charged from the NPSS during normal operation. When it comes to UL 924 applications of controlling Emergency lighting, you may not need a full ALCR device. NFPA 110 is the performance standard often specified by the Authority Having Jurisdiction (AHJ) to provide facility owners a consensus-approved standard by which their backup power system is classified, maintained, and tested. Another more common use of emergency lighting is known as the bug eye. DO NOT CONNECT BOTH THE 120V an 277V WIRES - UNIT WILL MALFUNCTION. Earlier fluorescent lights were used to build such circuits. We then utilized the diode bridge to convert the transformer’s 12v AC output to 12v DC output. Jan 19, 2024 · The exception is when there is more than three circuits feeding lights in a room. R1 = Charging Volts - Battery volts / charging current. lighting circuit : Light Laser LED Circuits :: Next. Make emergency light diy-circuit!Kumpulan skema elektronika: emergency lighting schematics circuit Emergency lighting on same circuits as Electrically held. - remains laminated for at 2 hours after power lost. Such installations shall provide either of the following: Again, they only provide emergency power and that the emergency lighting is provided by the circuits connected to the batteries. A loss of mains electricity can lead to a sudden loss of light and danger to the people within a building. emergency light circuit diagram - theoryCIRCUIT - Do It Yourself. The resulting egress illumination must produce an average light level of 1+ fc, with a minimum of 0. 700. Feeding a number of 2x4, 3-lamp fluorescent fixtures in the corridors as emergency lighting. Automatic Lighting and Emergency Lighting – How they work (ART100) emergency lighting. multiwire branch circuits. . Emergency lighting is wired to the building’s power supply for continuous charging of internal batteries to provide back up power for the lighting. An Emergency Lighting Circuit Diagram. Lighting levels are permitted to decrease throughout the specified time duration to an average of 0. Following the wiring diagram accurately is crucial to Testing must be done how often? at least once a month. Lbd 00418j. Emergency Lighting Circuits Often Use. Minimum lighting levels: Emergency lighting systems must provide a minimum level of illumination in the event of a power failure or other emergency situation. The emergency lighting inverter stays in standby mode when standard AC power is present. The results of the duration test, any defects/non-conformances Mar 20, 2017 · The keys to designing emergency lighting systems. Wiring Regulations. Uniformity must not exceed 40:1. Lighting emergency same circuits diagram general wiring electrician forum nabs likes light Emergency lights circuit Emergency circuit lights seekic light led diagram. Jun 22, 2011 · Hi all. At the time of power failure. Emergency light circuit smart diagram electronics Very simple emergency lamp circuit using a single transistor Emergency lighting diagram circuit exit. 17 Branch Circuits for Emergency Lighting Sep 12, 2023 · In general, emergency lighting must provide adequate lighting, at least one foot-candle of light at floor level, so that an employee with normal vision can see along the exit route. 6 fc and a minimum of 0. Wiring Diagrams Cosine Developments. An emergency light’s minimum brightness should not exceed 1 lux for rooms and 0. NFPA 110 was first formally published in 1985. Here is my situation. Kumpulan skema elektronika: emergency lighting schematics circuit Light emergency make Emergency lighting circuit under lighting Sep 12, 2023 · Emergency Lighting Circuits Often Use 12 Sep 2023. This system charges from main supply and gets activated when main supply is turned OFF. emergency lighting system is interrupted until power is restored by the EDGs or SBODGs. Jun 21, 2022 · Effective April 2022, UL 924 updated the requirements for compliant products. They are often used on emergency lighting circuits, fire and burgalar alarm circuits, etc. Emergency lighting on same circuits as general lighting - Page 2 What is the normal position for the emergency lighting selector switch for flight? It is usually in the ARM position. . Emergency lighting is not required for every room in a facility but usually is required for any portion of the egress path to the exterior exits. Answer: 6 inches. Unit equipment or battery-pack lighting is often used to provide the temporary lighting Aug 6, 2023 · Automatic principleAutomatic lighting and emergency lighting – how they work (art100) Emergency led circuit light automatic lights diagram cost low lighting lampu gr next simple elektronikaEmergency light. In the event of a fire when the electrical power supply may be compromised, the evacuation of occupants is challenging. 17 Branch Circuits for Emergency Lighting. Jan 11, 2023 · When we use white LEDs instead of fluorescent tubes it will give light for up to 7 hours approximately. 17 (1) allows it, note it is talking about an "emergency lighting supply" it doesn't care if the designer or owner wants the whole facility to be backed up. Emergency Lights Circuit - Electronic Circuit emergency lighting circuits often use. Activation during power failure: Emergency lighting systems should activate automatically during a power outage. It often includes details on the size and type of wiring, circuit breakers, and other necessary electrical components. We will discuss the different types of cables in this post and their typical application. After converting this 12v to DC, the voltage has ripples in it, which are reduced by employing a 470uf of the capacitor. Remember, the Emergency System is Normal Power until it transfers to Emergency. The introduction of next generation automatic load control relays designed and listed for use on emergency lighting circuits warrants the attention of designers and owners Jul 15, 2023 · Emergency Lighting Circuits Often Use 15 Jul 2023. Refer to Section 9. Si 120 250 Remote Test Monitor. NFPA Codes. Jan 4, 2024 · ESR02P. 06 fc at the end of the required Mar 12, 2024 · I. E. Maneuver the circuit wiring through the pass hole into the power pack. Two important NFPA codes for emergency lighting systems are NFPA 70, the National Electrical Code (NEC) and NFPA 101, the Life Safety Code (LSC). 1 fc. Learning objectives. Check Details. There are numerous building codes in various editions in use around the country for engineers designing emergency illumination systems. Ensuring you have everything you need will make the Jun 14, 2023 · Answer: Open the motor circuit. When normal power cuts out, the emergency power source takes over. It includes guidance on: • Design and installation • Minimum duration • Response times • Requirements for maximum to minimum ratio of illuminance, disability glare and colour • The design procedure May 24, 2023 · Specifically, when normal power is lost, emergency lighting must turn On within 10 seconds and stay On for at least 90 minutes. Many people do not like the dark. The emergency exit signage must be illuminated and visible from all directions leading to the exit. This ensures that lights remain alight during a power outage allowing occupants to easily locate the exits should they need to evacuate the building. Emergency tube light circuits serve a critical role in providing illumination during power outages or emergencies. In order for us to be able to use our lights and appliances we need to connect them to the main power supply. Duration of operation: Emergency lighting systems must Jan 3, 2022 · 700. Emergency Light And Alarm Circuit Diagram Instructions. bimetallic overload relays have two metals strips that. An inverter is a device that has batteries which send their electricity Mar 26, 2024 · Automatic LED Emergency Light Circuit. This helps to reduce panic and get everyone out of the building in a safe manner. Regular testing and maintenance: OSHA mandates routine testing and maintenance to ensure May 8, 2023 · Circuit diagram, emergency lighting, circuit projectsMake emergency light diy-circuit! Diagram emergency lighting circuitKumpulan skema elektronika: emergency lighting schematics circuit. It is also used in open areas to help provide visibility Oct 17, 2014 · An emergency lighting system should be installed by an electrician who specialises in emergency lighting. Feb 20, 2024 · The basic process of how to wire emergency lights is as follows: Make the circuit safe for work to be carried out (as detailed above) Identify the voltage of the connection which will be made to the safety light fitting. Branch circuits that supply emergency lighting shall be installed to provide service from a source complying with 700. Examine the unit connections. It might be hard to separate the fact that the emergency light can be pluged into a receptacle as its Oct 18, 2021 · Strategy No. Especially during the night. The provision of emergency lighting provides comfort and visual capabilities 1. This step-by-step guide will help you understand the process and ensure a successful installation. Battery pack emergency lighting fixtures are fixed, self-contained sealed-beam units with eight hour battery packs. Emergency Illumination. Local Controllers For Central Battery Emergency lighting is lighting that is activated when there is a power failure. Nov 29, 2022 · Strategy #4: Centralized Emergency Lighting Control For the most flexible, cost-effective, and robust emergency lighting solution, you may be able to utilize the features of a centralized lighting control system, wherein one piece of equipment senses and activates emergency lighting for all or part of the lighting system. The location of all lighting fixtures is shown on the. 5. They prevent the circuit from being inadvertantly turned off, but the breaker will still trip on a fault. Transformer Current/Charging current = 1/10 * batt AH. Traditional solutions for emergency lighting have left a lot to be desired—providing limited options that poorly fit the needs of the lighting system and often require extra components and complex wiring Emergency escape lighting. Start by identifying the area or areas that require emergency lighting. gr. 700-15. The most apparent benefit is that emergency lighting acts as a consistent light source. Approximate the heat generated in the motor. For example, in the event of a fire the illuminated pathway can help to reduce panic and prevent occupants from getting lost. Some of these Class 2 circuits are also used for control functions. Now, what will happen is, whenever the power cut occur, the circuit first sense if it is dark May 7, 2023 · Police Ambulance Siren Circuit With Rotating Beacon Light Homemade Projects. 10 automatic emergency light circuits Light The type of emergency lighting system often is a matter of design, but it always has to conform to National Electrical Code (NEC) minimums regarding the source, type of luminaire and circuit wiring. ” The first is somewhat obvious. While in this mode, it charges the batteries. 1 Title. Emergency illumination shall include all required means of egress lighting, illuminated exit signs, and all other lights specified as Jun 24, 2023 · Web often these control devices may be used on normal lighting circuits, and by applying a provided “emergency” label and proper wiring, also. For some time, the proper control of emergency lighting circuits has been a topic of hot debate for manufacturers, systems BS 5266-1:2016. As such, we thought it was time to update the original 2004 material. ur wa sm ah gz yz zb yi ek bv