Maintenance Factor

Illumination Systems are designed to fulfill the required lighting level at the end of an operation term and not at day one of the new installation. The luminous flux of the system is going down over lifetime. This is a normal process, no product is lasting forever but the required illuminance levels should not be depreciated at any time. If a lighting system is setup, the maintenance plan has to be fixed too. So the facility managers know how often to clean the room, the luminaries and how frequently to change lamps. A reasonable time needs to be found between maintenance and operating hours, as maintenance cycles are connected to costs. The longer the operation time without maintenance, the more luminaries need to be installed to guarantee the required illumination level at the end of the term. The more frequent the maintenance cycles, the higher the maintenance factor, but also the related costs for the facility service.

Which Points are influencing the Maintenance Factor? Different factors influence the decrease in lighting level like the soiling of the room surfaces, the soiling of the luminaries, depreciation of luminous flux by the light sources or lamps failure.

Room Surface Maintenance Factor: The room surface maintenance factor is the ratio of the room surfaces reflectance before and after cleaning. It is the reduction of the lighting level according to soiling of the room. Luminaire Maintenance Factor: The luminarie maintenance factor is the ration of the luminaries luminous flux before and after cleaning. It depends on the luminarie construction and design (open housing or closed one) as well as on environmental conditions (dirty or clean). Lamp Lumen Maintenance Factor: The lamp lumen maintenance factor is the ration of luminous flux at a specific time compared to a new lamp. It is describing the aging of the lamp or the reduction of light intensity over time. Manufacturers offer comprehensive tables about their lamps luminous flux behavior. Lamp Survival Factor: The lamp survival factor depends on the service lifetime of a lamp. Some lamp lifetimes are reduced by frequent switching. The lamp manufacturers provide tables indicating the lamp survival factor. If a lamp is not working any more, the decision for immediate replacement or group replacement needs to be taken. If the lamp is replaced immediately (mostly in areas where the luminaire is easily reachable) the LSF can be set 1. On the other hand, the decision could be to replace lamps in special terms or group-wise. This could be the case in huge halls, where machines need to be stopped to reach the luminaires.

A maintenance factor of 0.8 shows, that the new lighting system needs to be over driven by 25% not to undercut the minimum required illumination level after 10 years. LED lighting systems are flexible and easy to connect to control systems. The installed load will provide efficient luminous flux at the end of the operation time but the energy that is “over” in the beginning can be saved. The new installation would illuminate an area with required 300lx by about 450lx. The energy can be saved by lighting management systems that are regulating the power concerning the luminous flux depreciation. HID lamps are not easy to control. The energy load that is “over” in the beginning is wasted. No change to save it.

Conclusion: Think carefully when setting up a lighting installations maintenance plan. This starts already with the choice for the light source. LED Modules are efficient, likely not failing and offer long lifetimes between 50,000h and 100,000h. The control possibilities are comprehensive. The luminaries overload, that needs to be installed to guarantee the end of lifetime illuminance levels, can be saved by light management systems. Regarding all the mentioned points, LED is the competing light source. The features are dominant over traditional light sources. Take the chance and install or renew your lighting system by  energy efficient LED light sources and luminaries. If you have further questions please contact the lighting experts at MyLEDLightingGuide.com and discuss products as well as solutions.

If you were to go back in time and tell someone living in the 1960s that aluminum wiring replacement in Fairfax, VA is the best choice they can make, they may be a little confused. Fifty years ago, aluminum wiring was in. Copper spiked in price and many new homes built during that time were equipped with aluminum wiring under the belief that it was the more cost-efficient option. However, cost-efficiency did not equal safety, as homes with aluminum wiring proved more at risk for electrical fires. Speed up fifty years and in a 2016 world, aluminum wiring is now incredibly unsafe.

Many homeowners are DIY enthusiasts and like to tackle various jobs around their home. It’s okay to handle small carpentry tasks, furniture finishing, garden maintenance, indoor and outdoor painting and other repair tasks as a weekend project. It gives you a sense of achievement that you have completed these small jobs on your own. In fact, this can also save you a tidy sum on getting professionals to handle the job for you.

Some people just hone their DIY skills by trying their hand at different projects in their home, while others put in a more concerted effort and take classes to learn more complicated skills required for a particular task. With easy access to the Internet, it’s not uncommon to find many people learning different DIY techniques by watching tutorials online.

However, it’s never a good idea to tackle any electrical repairs on your own. Let’s take a look at why:

Those who have no training and certification to handle electrical jobs aren’t aware of many basic things such as:

These may seem like very simple things, but a novice many not be aware of them. This is exactly why it becomes important to hire the services of a licensed, insured and experienced electrician to handle all the electrical jobs on your commercial or residential property. They will ensure that all the work is carried out legally and safely, without any kind of compromises. This also ensures your home insurance isn’t compromised in any way.

AllRound Electricals is a very reputed and well-established company that handles all types of commercial and residential electrical jobs. On board our team are experienced professionals that fully understand all the technicalities of handling electrical jobs. They wear the appropriate protective clothing and have the right kind of tools to carry out the job in a safe manner.

We handle small and big jobs with the same level of dedication and expertise and always look to provide our customers value for money. Regardless of whether you want to get an electrical fixture installed or need complete rewiring done on your property, we are the professionals to hire. For any information about our services, feel free to call us at 1300 169 263. You can also write to us at this email address.

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Two costs are associated with any electrical appliance: the buying price, and the running cost in terms of energy and maintenance. Of the running costs, energy is one of the major items. Typically, the equipment can last several years before requiring a major repair.

Consumers should therefore not just look at the price tag on the item.  Rather, pay attention to its energy rating and available energy saving modes.

Energy star certified refrigerators and freezers are at least 9 and 10 percent more efficient respectively. Other considerations that help in saving energy include selecting the adequate capacity. In addition, the refrigerator or freezer should be kept in a cool place away from heat sources such as direct sunlight or ovens.

More energy savings can be realized by using the proper settings. In addition, ensure the door is closed all the time and that seals are in place. Place the refrigerator or freezer in a spot that allows free air circulation around the fridge; especially at the back where there are cooling pipes.

Manual defrost freezer models use less energy and are therefore more efficient than the automatic defrost models. Another important factor is the design of the freezer. An upright freezer with shelves is easier to organize. However, the chest freezer may be more energy efficient since there is less cold air escaping from the door which opens from the top.

These are usually 40 percent more efficient than the standard purifiers. Other factors to consider include the room size and placement. Select a model adequate for the room; otherwise, an oversized air purifier or cleaner will end up consuming more power unnecessarily.

Energy star certified dishwashers use at least 12 percent less energy and 15 percent less water than the conventional models. However, this may vary depending on the model and other factors.

These dishwashers utilize more efficient technologies that reduce both the energy consumption and water usage. For example, the design uses soil sensors that check the amount of dirt on the dishes.  An optimized cleaning cycle reduces the minimum amount of energy and water. In addition, there are more efficient water jets and a dish rack design that ensures efficient use of water and energy.

Energy Star dehumidifiers

Certified dehumidifiers use 15 percent less energy. They utilize more efficient compressors, refrigeration coils, and fans.

Washing machines

Energy star certified washing machines are usually 25 percent more energy efficient than their equivalent standard models. In addition, they use 40 percent less water. This results in the consumer saving water, as well as energy for both the washing machine and the water pump.

Clothes dryers

Certified dryers use at least 20 percent less energy than the standard models. The equipment utilizes more efficient technologies such as heat pumps. Moisture sensors automatically stop the drying cycle once the clothes are dry. This sensor-based drying machine is more efficient compared to thermostat or timed drying, which continues to consume energy even after clothes are dry.

Televisions qualify for energy star certification when they become at least 20 percent more efficient. Some models can reach up to 40% better efficiency than traditional models, while the set-top boxes can achieve up to 45 %. However, the amount of power used depends on the size of the TV screen, display technology, and resolution.

The home theater systems that are energy star certified are 60 percent more efficient. Certified battery chargers for small household appliances such as power tools, electric shavers, and cordless gadgets use 30 percent less energy.