With more stringent regulations and greater demand for emergency lighting in commercial buildings, product developers are constantly focusing on how to make outlets and emergency lights more energy efficient and easier to self-diagnose.
Emergency Light Manufacturers : “In the past few years, local standards have become more stringent for all lighting, but emergency lighting standards have become more stringent. Insurance companies offering lower premiums to buildings maintain a code-leading trend. To all of these factors, many building owners have chosen to update emergency lighting systems to more reliable LED light sources. Typically, emergency power systems are installed where lighting is required for safe exit and panic control."
In the past decade, incandescent lamps with low energy efficiency and a duration of only 5,000 hours have been almost completely replaced - first fluorescent lamps, then LEDs. This is a security risk and economic problem. If the building owner does not perform a diagnostic test in time, the incandescent lamp may need to be replaced twice a year.
On the other hand, LEDs can last for 10 years or more. The LED exit sign is rapidly gaining popularity and offers a number of improvements over the old system: energy saving, low power, long life and higher visibility. LEDs are starting to get slower, mainly because their original cost is much higher than other non-emergency lighting. Since the improved optical design allows for higher efficiency, the initial cost has decreased. Red LEDs provide the highest energy efficiency with the highest input light per watt.
Self-diagnosis is the main concern of building owners. In most emergency situations, the current power supply fails and a backup battery is needed to power the emergency system. The battery may not operate in an emergency without proper periodic maintenance. Most code requires periodic diagnostic tests, including an annual test that lasts for 90 minutes. Self-diagnosis emergency lighting provides an easy way to solve this problem. The self-diagnostic circuit monitors the voltage and function of each unit, typically one minute every 30 days, 30 minutes every six months. Another option is a product with an indicator that illuminates in the event of a system failure.
Dennis Gregory, emergency lighting product manager at McPhilben Emergency and Exit Lighting, said his company is developing new products that offer self-diagnostic circuits. McPhilben’s products verify the battery voltage and bulb every 10 seconds. Another option is a hand-held laser pin that can point the sensor from 12 feet and the indicator light is working.
NEC does not list specific timelines for emergency light diagnostic testing. The only requirement is that the tests should be conducted periodically at a frequency acceptable to the competent local authority, which usually accepts the test recommendations listed by the light manufacturer.
However, NEC paragraph 700-4(e) requires emergency lighting and electrical system testing to be performed at the determined maximum load. Load testing Emergency power system requirements are much more stringent than backup power systems. According to NEC paragraph 701-5(e), the backup system only needs to be tested under load - not for the expected maximum load.
Since emergency and legally required backup systems are usually combined, it is recommended to test under more stringent requirements.
The full load test shows whether the emergency or standby system is functioning properly when needed. This requires installing a load group equal to the expected maximum load, or better yet installing to the power supply rating. To protect sensitive electronic equipment from damage and downtime, a load group equal to the expected maximum load can be installed.
However, even if a load library is provided, the actual load should be used to test the emergency or legal mandatory backup power system to ensure the operation of the entire system.
There are also specific instructions for testing emergency and backup lighting systems. Section 6.4 of NFPA 110 states that these systems need to be tested at least 30 minutes per month under the specified load. Section 6.4 of NFPA 110 is the best choice for developing test and maintenance plans for emergency or standby generators.
In some businesses, specific emergency lighting systems are critical. Emergency lights need to be controlled in buildings such as theaters, where dimming lighting can be automatically added to the NFPA Life Safety Specification by an activated fire alarm system. This specification also requires that any building with reduced lighting must have a system that automatically increases lighting to the level that activates the fire. Typically, fire alarms on circuits that monitor integrity need to be installed no more than 3 feet from the lighting controller.
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Emergency Light Manufacturers : “In the past few years, local standards have become more stringent for all lighting, but emergency lighting standards have become more stringent. Insurance companies offering lower premiums to buildings maintain a code-leading trend. To all of these factors, many building owners have chosen to update emergency lighting systems to more reliable LED light sources. Typically, emergency power systems are installed where lighting is required for safe exit and panic control."
In the past decade, incandescent lamps with low energy efficiency and a duration of only 5,000 hours have been almost completely replaced - first fluorescent lamps, then LEDs. This is a security risk and economic problem. If the building owner does not perform a diagnostic test in time, the incandescent lamp may need to be replaced twice a year.
On the other hand, LEDs can last for 10 years or more. The LED exit sign is rapidly gaining popularity and offers a number of improvements over the old system: energy saving, low power, long life and higher visibility. LEDs are starting to get slower, mainly because their original cost is much higher than other non-emergency lighting. Since the improved optical design allows for higher efficiency, the initial cost has decreased. Red LEDs provide the highest energy efficiency with the highest input light per watt.
Self-diagnosis is the main concern of building owners. In most emergency situations, the current power supply fails and a backup battery is needed to power the emergency system. The battery may not operate in an emergency without proper periodic maintenance. Most code requires periodic diagnostic tests, including an annual test that lasts for 90 minutes. Self-diagnosis emergency lighting provides an easy way to solve this problem. The self-diagnostic circuit monitors the voltage and function of each unit, typically one minute every 30 days, 30 minutes every six months. Another option is a product with an indicator that illuminates in the event of a system failure.
Dennis Gregory, emergency lighting product manager at McPhilben Emergency and Exit Lighting, said his company is developing new products that offer self-diagnostic circuits. McPhilben’s products verify the battery voltage and bulb every 10 seconds. Another option is a hand-held laser pin that can point the sensor from 12 feet and the indicator light is working.
NEC does not list specific timelines for emergency light diagnostic testing. The only requirement is that the tests should be conducted periodically at a frequency acceptable to the competent local authority, which usually accepts the test recommendations listed by the light manufacturer.
However, NEC paragraph 700-4(e) requires emergency lighting and electrical system testing to be performed at the determined maximum load. Load testing Emergency power system requirements are much more stringent than backup power systems. According to NEC paragraph 701-5(e), the backup system only needs to be tested under load - not for the expected maximum load.
Since emergency and legally required backup systems are usually combined, it is recommended to test under more stringent requirements.
The full load test shows whether the emergency or standby system is functioning properly when needed. This requires installing a load group equal to the expected maximum load, or better yet installing to the power supply rating. To protect sensitive electronic equipment from damage and downtime, a load group equal to the expected maximum load can be installed.
However, even if a load library is provided, the actual load should be used to test the emergency or legal mandatory backup power system to ensure the operation of the entire system.
There are also specific instructions for testing emergency and backup lighting systems. Section 6.4 of NFPA 110 states that these systems need to be tested at least 30 minutes per month under the specified load. Section 6.4 of NFPA 110 is the best choice for developing test and maintenance plans for emergency or standby generators.
In some businesses, specific emergency lighting systems are critical. Emergency lights need to be controlled in buildings such as theaters, where dimming lighting can be automatically added to the NFPA Life Safety Specification by an activated fire alarm system. This specification also requires that any building with reduced lighting must have a system that automatically increases lighting to the level that activates the fire. Typically, fire alarms on circuits that monitor integrity need to be installed no more than 3 feet from the lighting controller.
https://www.linsheng.com
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