Emergency Light Manufacturers – Emergency Lighting Fixtures: Incorporating Innovative Design
Once the architect is scared, you can now incorporate emergency lighting into an innovative design without sacrificing performance.
Emergency Light Manufacturers eliminate the need to endure abrupt and ugly fixtures. That’s because they are now designing emergency lighting with aesthetic significance. In fact, some fixtures are completely invisible. Sounds interesting? continue reading. Certain types are preferred depending on the application and facility. Here’s what you have to choose:
1• Special designer lamps. You can use these, and the completely unobtrusive appearance is crucial. Equipped with extruded aluminum frame and acrylic or polycarbonate lenses, some models are available in full-concave, semi-concave and surface mount versions. A manufacturer uses the “push lens” program to test the correct operation. The unit design is perfect for any interior space that you (or an architect) want to avoid in emergency lighting. Another interesting change is the design of the luminaires and lights behind the hidden doors. Until activated, these almost invisible compact luminaires maintain the integrity of the building or interior design while meeting national and state regulations. They are supplied by a central battery system and are available in either ceiling or wall mount versions.
2• Fluorescent emergency ballast. Fluorescent ballasts/batteries convert standard fluorescent fixtures into emergency lights. The unit provides the same linear light as the luminaire, so no exposed equipment can reduce the appearance of the ceiling. (Some use separate compact fluorescent lamps as an emergency light source in the luminaire.) Some batteries can use two or three 32W (4 ft) T8 fluorescent lamps, two or three 39W, or two 40W to 55W (4-pin) Long compact fluorescent lamp. The emergency fluorescent ballast unit can be used in commercial offices and public buildings, institutions and healthcare facilities.
Most can be used as a dual voltage model. You can retrofit them on site or order them as part of a newly installed fluorescent fixture.
This is how they work. When the AC power is restored after a power outage, the emergency ballast will automatically switch to charging mode and fully charge within 24 hours. You can use the test switch to check if the device is working properly. However, the latest emergency ballasts have eliminated some of the troubles in the tests required by the code. Simply operate the emergency ballast with a hand-held remote transmitter to verify its operation without standing on a ladder or using an expansion device to secure the test switch. You can install an emergency ballast unit in the ballast passage, on the top of the clamp or away from the clamp. This unobtrusive positioning prevents unauthorized tampering and reduces the risk of vandalism. Heat can affect the operation of the battery, so be sure to use equipment rated for operation at high temperatures.
A special version of this type of ballast is used as an uninterrupted temporary lighting unit for a generator-powered emergency lighting system. The auxiliary generator typically takes 10 seconds during a power failure. Reach speed and generate emergency power. The emergency ballast unit provides high illumination between AC power loss and the emergency generator starting to provide power to the illumination. The unit can run a 17W to 32W T8, a 20W to 40W T10 or T12, or an 18W to 55W (4-pin) compact fluorescent lamp for at least 5 minutes in high illumination. It is ideal for hospitals, educational facilities and factories.
3• Unitary equipment. Compact, unit-battery-powered lamps (usually using reflective lamps) are used in fairly unobtrusive models in commercial and institutional environments. They are ideal for schools, hospitals and offices.
Equipped with LED indicators designed to accommodate suspended T-bar ceilings, it is available in four head styles and a variety of battery options. You can install the battery/charger remotely. Industrial units and explosion-proof versions for special rated applications are also available.
The special version of the unit is the perfect solution for stairwell/corridor exit lighting. The series combines a self-powered full-size exit sign with two emergency heads (some local codes require three heads), so there is no need for a separate emergency light unit in many applications.
Typically, power units for emergency lighting systems have built-in test equipment or programs that often move the unit to ensure proper operation. Failure to complete the test will activate the fault light. Accessories for unit equipment include tamper-resistant plastic shrouds, protective wire shrouds and mounting brackets. The battery source can be lead calcium, pure lead or nickel cadmium.
A vandal-resistant “always on” emergency lighting unit, using one or two compact fluorescent lamps and a polycarbonate diffuser, is a natural choice for apartment building corridors, stairwells and exit locations.
4. HID backup lighting. NEC requires emergency lighting to back up the slow restart high intensity discharge (HID) system. Long-term restart times for high-pressure sodium (HPS), as well as longer metal halide (M-H) sources, require some form of backup lighting system that is immediately available when power is restored. The HID source takes 5 to 15 minutes. Cool down and restart after power off.
You can specify an industrial HID lighting system that includes a tungsten halogen lamp as a backup source in some fixtures. Here you will have a separate power supply for the tungsten lamp, usually operating at 120VAC, allowing you to connect it to the emergency generator circuit.
The tungsten source illuminates whenever the device detects a loss of lamp current. The time delay after returning to normal power keeps the tungsten lamp energized during the HID restart.
5• Exit the light. The design of export lights is constantly evolving. Today, compact fluorescent lamps, light-emitting diodes and cold cathode light sources are very popular. In addition, retrofit LEDs and compact fluorescent kits can be used to convert older exit lights into longer, lower power devices.
Many compact fluorescent lamps/ballasts can have a power factor of 50% or less. Therefore, the volt-ampere (VA) rating should be used instead of the wattage rating when making calculations. This way, you will not overload the circuit that powers the device.
Many LED exit signs consume less than 5W per side, while older incandescent models can consume 20W to 40W per side. Manufacturers use LED light sources to provide a full range of ENERGY STAR-compliant export marks. Developed by the US Environmental Protection Agency (EPA), the ENERGY STAR program is designed to drive the most energy-efficient exit lights on the market today. Although their initial cost is higher than other sources, the ENERGY STAR logo has lower power consumption and lower maintenance costs.