Most Commonly Asked Questions About Street Light

Here are top 10 questions about street light asked by people online.

Most Commonly Asked Questions About Street Light 1

1. Street lighting design guide | Electrical Engineering in Kenya

This guide is intended for street lighting that is grid powered. It should be noted that the above are the main objectives and thus the lighting scheme should not be expected to give a lighting level. Warm light (yellow) penetrates darkness more than and hence it is a common choice when it comes solar street lighting. What you will find in this guide: How to estimate the required power for the street light area: NOTE: This guide has been made as simple and practical as possible. It mostly applies to street lighting though some of its principles also apply to road lighting. Some concepts are mentioned in passing and the reader can research and read more on the same. There are details that have been deliberately omitted such as "Light intensity distribution of the lighting luminaire", "Spread and Throw Angles of the luminaire" etc. In the near future, I may write a more detailed guide and also another one for "Market Lighting" and share the respective BOQs as well. The ideal spacing would be 24M. Note that the formula is based on "feet" as the unit of length. Suppose you have all other details required and you wanted to figure out the proper wattage of your lamps. For example, what would be the street light wattage of each luminaire of light pole having the following considerations? Road Details: The width of is 7 Meter. Distance between each Pole (D) is 50 Meter. Required Illumination Level for Street Light (E) is 6.46 Lux per Square Meter. It is important to size your cables properly so as to ensure that voltage drops do not exceed the recommended values. To properly size your cables, you must consider these factors: the total load, load current, the cable length and the respect constant for the given load current. The voltage drop on load conditions at a final sub-circuit; According to BS7671-2008, load current of 3.75A can be well accommodated by a 1.5mm2 copper cable. We are using BS7671-2008, Table 4E4A for cable sizing, and Table 4E4B for voltage drop pages 348 and 349 respectively. Note that for the voltage drop (per ampere per metre) constants are in mV/A/m, thus you have to divide the constant by 1000. Check the table references at the end of the post. If we used the 1.5mm2 copper cable, the voltage drop would be: We move to the next cable size, i.e, 2.5mm2, If we used the 2.5mm2 copper cable, the voltage drop would be: 7.125V is very close to the limit of 9.6V, and since we must account for losses by the lamps themselves, temperature related constants, a 4mm2 cable would be appropriate as it would take care of such. Thus, for this example, we will use a 4mm2 copper cable whose current rating is 49A for a single phase ac load. Based on our hypothetical load current of 3.75A. Sure, the 4.5V drop is well within the limit of 9.6V. Thus, is more suitable for our example. Next is the MCCB sizing. I = Nominal current or setting of the protective device. I = Current carrying capacity of the conductor in the particular installation conditions. Thus, you can choose any MCCB between 5A-30A. So we can choose 30A that the choice of the MCCB is also dependent on the short circuit currents calculations. So, we can have two MCCBs rated 30A but with different short circuit current breaking capacity, say 16kA and 32kA. These calculations are beyond the scope of this guide though. E.How to estimate the required power for the street light area: Suppose you have the following data, what will be the street light watt? Required Illumination Level for Street Light (L) is 6 Lux per Square Meter. Required Street Light Area to be illuminated (A) is 1 Square Meter.

2. Who do i contact to have the street light turned off?

Sorry, but I do not know of any circumstance where they would do that. Not even for the 4th. BTW do NOT try and disconnect the power yourself. It is not basic 120V and from what I recall someone tried that and, bzzzt bzzt, electrocuted themselves. My advice, drive somewhere where the street lights are fewer.

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someone retarded1. which china led street light manufacturer is better?My english is poor and can not tell you too much about street light products, but I suggest you see products here WWW.IBTSLED.COM2. why does the street light in front of my house keep turning on and off every few minutes?Its the ballast. When the bulbs go out they just quit working. When the ballast starts to go bad, they heat up, shut down when it cools down again they come back on till they heat up again3. Street light goes out when I walk by?please dear, do not you call yourself 'crazy' ever, please. i do not know anything useful information to help you but i do know somethings; 1st of all whoever made fun of your question is himself/herself a jerk and i knew it & so many other people know it too that when they read your question they thought of the " power" of your's & maybe a lot of them wanted/wished that what if they had the power that you have. once i watched a show on t.v. ( not faking) that on peiple with some mysterious things/power or events. on 1 particular episode, there was a man, whenever he saws a bulb or like he went into a shop & if there's a bulb it just went off without any reason like, its just fused( suddenly & it happens every-time) and did not light again( he told that himself & demonstrated it also; he said why it happenes i do not know & that's why in my home i do not have any bulbs for lighting purpose.) so i think maybe you can find some similarities inyour & his case if you believe. otherwise i just wanna say that just believe in yourself & in the good things in yourself ( by good things i did not mean that your gift is a bad thing). do take some time from your daily schedule & do some research, it will help you to find the qualities in yourself because knowing oneself, one's mind, heart & soul is like knowing or get fascinated by a superstar ( if you can like a celebraty & his life how come you do not like your's? hope you will get it what i wanna say, right na?). who knows you would be among some very lucky people who help me & other normal people like me through their gift. thanks for reading my message to you and if you like you can share anything with me. take care.4. When you were a kid did you often break the street light rule?My Dad was a Sergeant in the Army during WW 2. Have you ever heard one of those guys yell? We made it home as soon as the lights came on. Having the entire town know you were late just was not a pleasant event.. we would hear all about it at school the following day.. Sigh.5. When you were a kid did you often break the street light rule?sometimes i stay at my friends house till like 3A.M. im 14 so yea, but one time i broke a streetlight, i shot it with my bebe gun6. what does it mean when you drive under a street light and it goes out?I had a physics teacher in High School who let us ask him random questions at the beginning of class each day. One of the students asked him this question, and his answer was that each of us emit a certain energy. If the light turns off or on, it was because your energy was at the same frequency as the electricity in the bulb. He also dedicated a day of class to ESP, and got mad at us when we threw off his vibe... and he thinks JFK was abducted by aliens, and will return in the year 2025... so, you can judge yourself whether or not to give his explanation any merit... :D7. PSE Begins Smart Street Light Installations To Help Customers Save Energy, Reduce CarbonPuget Sound Energy will begin installing street light control capabilities, also known as smart street lights, to help its lighting customers save money and reduce carbon. The technology will give PSE municipal customers more choice on how they light up their roads and communities by measuring energy consumption and using adaptive controls to lower usage in specific locations and times of day while also enhancing safety measures. The smart grid technology will add controls and software to LED street lights to enable two way communication. Smart street lights can be instantly turned on and off or dimmed for benefits like energy conservation or reducing light pollution at night. The ability to monitor each light's performance means broken and failing lights can be quickly identified and repaired. Because smart street lights can operate more efficiently, customers will be able to optimize their energy use, lower costs and reduce carbon in our environment. "Our lighting customers told us they wanted more control over their energy usage to save money and reduce carbon, and this technology will help meet both those needs," said PSE Director of Product Development and Growth Will Einstein. "New technology such as smart street lights will help us partner with our customers to meet their goals and improve the customer experience." Energy measurement that would facilitate metered billing as opposed to flat rate billing Remote control for dimming, turn off and turn on Uses less energy through dimming and reduces carbon as a result The City of Bellevue will be one of the first to receive the installations. PSE will be replacing around 300 roadway lights in some of Bellevue's arterial roadways with LED lights. It's part of the city's overall effort to reduce its carbon footprint. "We value innovation as a community and so appreciate that PSE partnered with Bellevue as one of the first two cities to receive new smart street lights," said Mayor Lynne Robinson. "In addition to energy efficiency and cost savings, it has the potential to help PSE respond more quickly to burned out lights owned by the company. It will be a positive safety boost for our Vision Zero effort to eliminate serious-injury and fatal crashes on city streets by 2030." Smart street lighting installations will also soon begin in the City of Edgewood with the installation of about 50 smart light controllers. "The City of Edgewood is excited to partner with PSE to incorporate Smart technology for immediate two-way communications and control of our street lights," said Edgewood Mayor Daryl Eidinger. "This control will give us feedback for malfunctions and allow us to reduce our usage, light pollution and our carbon footprint." Other cities within PSE's service area will also be able to engage with PSE on controls. PSE has partnered with Landis Gyr to equip 25,000 street lights with smart controls over five years. This is another way PSE is working together with customers to create a clean energy future for all as the company has also set an aspirational goal to be a Beyond Net Zero Carbon company by 2045. PSE will target reducing its own carbon emissions to net zero and go beyond by helping other sectors to enable carbon reduction across the state. Partnering with municipalities in its service area will help towards that mission. For more information on the smart street lighting program.
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