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JosephMarshall2783: Новая: Sodium Vapour Lamp consists of a discharge tube created from a heat resistant glass, containing a small quantity of metallic sodium, neon gas and two electrodes, Neon gas is added to com...

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Новая: Sodium Vapour Lamp consists of a discharge tube created from a heat resistant glass, containing a small quantity of metallic sodium, neon gas and two electrodes, Neon gas is added to com...

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Sodium Vapour Lamp consists of a discharge tube created from a heat resistant glass, containing a small quantity of metallic sodium, neon gas and two electrodes, Neon gas is added to commence the discharge and to develop enough heat to vaporize the sodium. Simply because of law pressure inside the tube, a sufficiently long tube necessary to obtain a lot more light. To reduce the overall dimension of the lamp, this tube is typically bent into U-shape. The light created by this lamp is yellowish which is created at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes essential to preserve this temperature. For this purpose the U-tube is enclosed in a double walled flask to prevent [http://www.chickencoopselect.com/small-chicken-coops company web site] shed of heat. The double walled flask is interchangeable and can be fitted on to one more U-tube. Even though replacing the inner U-tube one particular need to be very careful simply because if it is broken and sodium comes in speak to with moisture, it may result in fire. All electric discharge lamps require [http://www.chickencoopselect.com/ chickens coops] a higher voltage at the time of beginning and low voltage for the duration of operation. Generally, sodium vapour lamps are operated by a high leakage reactance [http://www.chickencoopselect.com/chicken-houses look into chicken house for sale] transformer. At beginning a high voltage of about 450 volts is applied across the lamp which is enough to begin the discharge. When the lamp is completely operative immediately after 10 - 15 minutes, the voltage across it falls to about 150 volts. Since of the high reactance of circuit, the power aspect is low and hence a p.f improvement capacitor is connected. The efficiency of a low pressure sodium vapour lamp is quite high (about 40 - 50 lumens/watt) and it produces a light of distinct wavelength obtaining yellow color. Sodium lamps are mainly employed for street, high way and airfield lighting where color distinction is not so required.

← Предыдущая		Версия 08:44, 26 декабря 2025
Строка 1:		Строка 1:
−	Sodium Vapour Lamp consists of a discharge tube created from a heat resistant glass, containing a small amount of metallic sodium, neon gas and two electrodes, Neon gas is added to start off the discharge and to develop adequate heat to vaporize the sodium. Due to the fact of law pressure inside the tube, a sufficiently extended tube essential to obtain more light. To minimize the overall dimension of the lamp, this tube is usually bent into U-shape.<br><br>The light created by this lamp is yellowish which is created at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes necessary to sustain this temperature. For this purpose the U-tube is enclosed in a double walled flask to avoid shed of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. Whilst replacing the inner U-tube 1 need to be extremely careful due to the fact if it is broken [http://www.youtube.com/watch?v=qJHVMcI4cks&feature=plcp chicken houses] and sodium comes in get in touch with with moisture, it may possibly result in fire.<br><br>All electric discharge lamps demand a greater voltage at the time of beginning and low voltage for the duration of operation. Usually, sodium vapour lamps are operated by a high leakage reactance transformer. At starting a high voltage of about 450 volts is applied across the lamp which is sufficient to begin the discharge. When the lamp is completely operative immediately after 10 - 15 minutes, the voltage across it falls to about 150 volts. Simply because of the high reactance of circuit, the power aspect is low and hence a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is really high (about 40 - 50 lumens/watt) and it produces a light of distinct wavelength having yellow color. Sodium lamps are primarily employed for street, high way and airfield lighting where color distinction is not so required.	+	Content removed

← Предыдущая		Версия 09:47, 29 июня 2012
Строка 1:		Строка 1:
−	Sodium Vapour Lamp consists of a discharge tube created from a heat resistant glass, containing a small amount of metallic sodium, neon gas and two electrodes, Neon gas is added to ~~begin~~ the discharge and to ~~create sufficient~~ heat to vaporize the sodium. Due to the fact of law pressure inside the tube, a sufficiently extended tube essential to obtain more light. To minimize the overall dimension of the lamp, this tube is ~~typically~~ bent into U-shape.<br><br>The light created by this lamp is yellowish which is ~~made~~ at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes ~~required~~ to ~~preserve~~ this temperature. For this ~~goal~~ the U-tube is enclosed in a double walled flask to ~~prevent lose~~ of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. ~~Even though~~ replacing the inner U-tube 1 need to be extremely ~~cautious simply because~~ if it is broken and sodium comes in ~~make contact~~ with with moisture, it may result in fire.<br><br>All electric discharge lamps ~~require~~ a ~~larger~~ voltage at the time of beginning and low voltage in the ~~course~~ of operation. ~~Typically~~, sodium vapour lamps are operated by a high leakage reactance transformer. At starting a high voltage of about 450 volts is applied across the lamp which is sufficient to begin the discharge. When the lamp is ~~fully~~ operative ~~following~~ 10 - 15 minutes, the voltage across it falls to about 150 volts. ~~Due to the fact~~ of the high reactance of circuit, the power ~~element~~ is low and ~~therefore~~ a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is ~~extremely~~ high ~~[http://www.youtube.com/watch?v=qJHVMcI4cks&feature=plcp chicken houses]~~ (about 40 - 50 lumens/watt) and it produces a light of ~~particular~~ wavelength ~~obtaining~~ yellow color. Sodium lamps are ~~mainly~~ employed for street, high way and airfield lighting ~~exactly~~ where color distinction is not so ~~necessary~~.	+	Sodium Vapour Lamp consists of a discharge tube created from a heat resistant glass, containing a small amount of metallic sodium, neon gas and two electrodes, Neon gas is added to start off the discharge and to develop adequate heat to vaporize the sodium. Due to the fact of law pressure inside the tube, a sufficiently extended tube essential to obtain more light. To minimize the overall dimension of the lamp, this tube is usually bent into U-shape.<br><br>The light created by this lamp is yellowish which is created at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes necessary to sustain this temperature. For this purpose the U-tube is enclosed in a double walled flask to avoid shed of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. Whilst replacing the inner U-tube 1 need to be extremely careful due to the fact if it is broken [http://www.youtube.com/watch?v=qJHVMcI4cks&feature=plcp chicken houses] and sodium comes in get in touch with with moisture, it may possibly result in fire.<br><br>All electric discharge lamps demand a greater voltage at the time of beginning and low voltage for the duration of operation. Usually, sodium vapour lamps are operated by a high leakage reactance transformer. At starting a high voltage of about 450 volts is applied across the lamp which is sufficient to begin the discharge. When the lamp is completely operative immediately after 10 - 15 minutes, the voltage across it falls to about 150 volts. Simply because of the high reactance of circuit, the power aspect is low and hence a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is really high (about 40 - 50 lumens/watt) and it produces a light of distinct wavelength having yellow color. Sodium lamps are primarily employed for street, high way and airfield lighting where color distinction is not so required.

← Предыдущая		Версия 09:47, 29 июня 2012
Строка 1:		Строка 1:
−	Sodium Vapour Lamp consists of a discharge tube ~~made~~ from a heat resistant glass, containing a ~~modest quantity~~ of metallic sodium, neon ~~[http://www.chickencoopselect.com/ research chicken coop for sale]~~ gas and two electrodes, Neon gas is added to ~~start~~ the discharge and to ~~develop~~ sufficient heat to vaporize the sodium. ~~Since~~ of law pressure inside the tube, a sufficiently extended tube essential to ~~acquire a lot~~ more light. To minimize the ~~general~~ dimension of the lamp, this tube is typically bent into U-shape.<br><br>The light created by this lamp is yellowish which is made at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes ~~needed~~ to preserve this temperature. For this goal the U-tube is enclosed in a double walled flask to ~~stop shed~~ of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. ~~While~~ replacing the inner U-tube ~~a single must~~ be ~~quite careful since~~ if it is broken and sodium comes in ~~speak to~~ with moisture, it may result in fire.<br><br>All electric discharge lamps require ~~[http://www.chickencoopselect.com/chicken-tractors found it]~~ a larger voltage at the time of ~~starting~~ and low voltage ~~for~~ the ~~duration~~ of operation. Typically, sodium vapour lamps are operated by a high leakage reactance transformer. At starting a ~~[http://www.chickencoopselect.com/ visit free chicken coops]~~ high voltage of about 450 volts is applied across the lamp which is ~~enough~~ to begin the discharge. When the lamp is fully operative ~~after~~ 10 - 15 minutes, the voltage across it falls to about 150 volts. ~~Because~~ of the high reactance of circuit, the power element is low and therefore a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is ~~quite~~ high (about 40 - 50 lumens/watt) and it produces a light of ~~distinct~~ wavelength ~~having~~ yellow color. Sodium lamps are ~~mostly~~ employed for street, high way and airfield lighting where color distinction is not so ~~essential~~.	+	Sodium Vapour Lamp consists of a discharge tube created from a heat resistant glass, containing a small amount of metallic sodium, neon gas and two electrodes, Neon gas is added to begin the discharge and to create sufficient heat to vaporize the sodium. Due to the fact of law pressure inside the tube, a sufficiently extended tube essential to obtain more light. To minimize the overall dimension of the lamp, this tube is typically bent into U-shape.<br><br>The light created by this lamp is yellowish which is made at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes required to preserve this temperature. For this goal the U-tube is enclosed in a double walled flask to prevent lose of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. Even though replacing the inner U-tube 1 need to be extremely cautious simply because if it is broken and sodium comes in make contact with with moisture, it may result in fire.<br><br>All electric discharge lamps require a larger voltage at the time of beginning and low voltage in the course of operation. Typically, sodium vapour lamps are operated by a high leakage reactance transformer. At starting a high voltage of about 450 volts is applied across the lamp which is sufficient to begin the discharge. When the lamp is fully operative following 10 - 15 minutes, the voltage across it falls to about 150 volts. Due to the fact of the high reactance of circuit, the power element is low and therefore a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is extremely high [http://www.youtube.com/watch?v=qJHVMcI4cks&feature=plcp chicken houses] (about 40 - 50 lumens/watt) and it produces a light of particular wavelength obtaining yellow color. Sodium lamps are mainly employed for street, high way and airfield lighting exactly where color distinction is not so necessary.

← Предыдущая		Версия 08:29, 28 июня 2012
Строка 1:		Строка 1:
−	Sodium Vapour Lamp consists of a discharge tube made from a heat resistant glass, containing a modest quantity of metallic sodium, neon gas and two electrodes, Neon gas is added to start the discharge and to ~~create adequate~~ heat to vaporize the sodium. ~~Due to the fact~~ of law pressure inside the tube, a sufficiently ~~lengthy~~ tube ~~required~~ to acquire ~~far~~ more light. To minimize the general dimension of the lamp, this tube is ~~usually~~ bent into U-shape.<br><br>The light created by this lamp is yellowish which is ~~produced~~ at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes needed to ~~retain~~ this temperature. For this goal the U-tube is enclosed in a double walled flask to ~~avoid lose~~ of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. While ~~[http://www.chickencoopselect.com/ quality chicken coups]~~ replacing the inner U-tube ~~one particular need to~~ be ~~very cautious because~~ if it is broken and sodium comes in ~~make contact with~~ with moisture, it may ~~possibly~~ result in fire.<br><br>All electric discharge lamps require a ~~higher~~ voltage at the time of ~~beginning~~ and low voltage for the duration of operation. ~~Generally~~, sodium vapour lamps are operated by a high leakage reactance transformer. At ~~beginning~~ a high voltage of about 450 volts is applied across the lamp which is ~~adequate~~ to ~~start off~~ the discharge. When the lamp is ~~totally~~ operative ~~right~~ after 10 - 15 minutes, the voltage across it falls to about 150 volts. ~~Due to the fact~~ of the high reactance of circuit, the power ~~[http://www.chickencoopselect.com/chicken-runs copyright] aspect~~ is low and therefore a p.f improvement ~~[http://www.chickencoopselect.com/chicken-tractors mobile chicken coop]~~ capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is ~~extremely~~ high (about 40 - 50 lumens/watt) and it produces a light of ~~certain~~ wavelength ~~possessing~~ yellow color. Sodium lamps are ~~mainly~~ employed for street, high way and airfield lighting where color distinction is not so ~~required~~.	+	Sodium Vapour Lamp consists of a discharge tube made from a heat resistant glass, containing a modest quantity of metallic sodium, neon [http://www.chickencoopselect.com/ research chicken coop for sale] gas and two electrodes, Neon gas is added to start the discharge and to develop sufficient heat to vaporize the sodium. Since of law pressure inside the tube, a sufficiently extended tube essential to acquire a lot more light. To minimize the general dimension of the lamp, this tube is typically bent into U-shape.<br><br>The light created by this lamp is yellowish which is made at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes needed to preserve this temperature. For this goal the U-tube is enclosed in a double walled flask to stop shed of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. While replacing the inner U-tube a single must be quite careful since if it is broken and sodium comes in speak to with moisture, it may result in fire.<br><br>All electric discharge lamps require [http://www.chickencoopselect.com/chicken-tractors found it] a larger voltage at the time of starting and low voltage for the duration of operation. Typically, sodium vapour lamps are operated by a high leakage reactance transformer. At starting a [http://www.chickencoopselect.com/ visit free chicken coops] high voltage of about 450 volts is applied across the lamp which is enough to begin the discharge. When the lamp is fully operative after 10 - 15 minutes, the voltage across it falls to about 150 volts. Because of the high reactance of circuit, the power element is low and therefore a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is quite high (about 40 - 50 lumens/watt) and it produces a light of distinct wavelength having yellow color. Sodium lamps are mostly employed for street, high way and airfield lighting where color distinction is not so essential.

← Предыдущая		Версия 08:29, 28 июня 2012
Строка 1:		Строка 1:
−	Sodium Vapour Lamp consists of a discharge tube made from a heat resistant glass, containing a ~~little amount [http://www.chickencoopselect.com/chicken-tractors open site in new window]~~ of metallic sodium, neon gas and two electrodes, Neon gas is added to ~~commence~~ the discharge and to create adequate heat to vaporize the sodium. ~~Simply because~~ of law pressure inside the tube, a sufficiently ~~extended~~ tube ~~needed~~ to acquire more light. To ~~reduce~~ the ~~overall~~ dimension of the lamp, this tube is ~~normally~~ bent into U-shape.<br><br>The light ~~produced~~ by this lamp is yellowish which is ~~created~~ at its optimum pressure of about .004mm of mercury. This ~~[http://www.chickencoopselect.com/chicken-tractors chicken coop with wheels]~~ pressure is obtained at a temperature of about 280 C and so it becomes ~~essential~~ to ~~maintain~~ this temperature. For this ~~objective~~ the U-tube is enclosed in a ~~[http://www.chickencoopselect.com/ rent chicken koops]~~ double walled flask to avoid lose of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. ~~Although~~ replacing the inner U-tube one particular need to be ~~really~~ cautious ~~since~~ if it is broken and sodium comes in ~~speak to~~ with moisture, it may result in fire.<br><br>All electric discharge lamps ~~call for~~ a higher voltage at the time of beginning and low voltage ~~throughout~~ operation. ~~Typically~~, sodium vapour lamps are operated by a high leakage reactance transformer. At ~~starting~~ a high voltage of about 450 volts is applied across the lamp which is ~~sufficient~~ to ~~commence~~ the discharge. When the lamp is totally operative right after ~~ten~~ - 15 minutes, the voltage across it falls to about 150 volts. ~~Because~~ of the high reactance of circuit, the power ~~element~~ is low and therefore a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is ~~really~~ high (about 40 - 50 lumens/watt) and it produces a light of ~~distinct~~ wavelength ~~getting~~ yellow color. Sodium lamps are ~~primarily~~ employed for street, high way and airfield lighting ~~exactly~~ where color distinction is not so ~~essential~~.	+	Sodium Vapour Lamp consists of a discharge tube made from a heat resistant glass, containing a modest quantity of metallic sodium, neon gas and two electrodes, Neon gas is added to start the discharge and to create adequate heat to vaporize the sodium. Due to the fact of law pressure inside the tube, a sufficiently lengthy tube required to acquire far more light. To minimize the general dimension of the lamp, this tube is usually bent into U-shape.<br><br>The light created by this lamp is yellowish which is produced at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes needed to retain this temperature. For this goal the U-tube is enclosed in a double walled flask to avoid lose of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. While [http://www.chickencoopselect.com/ quality chicken coups] replacing the inner U-tube one particular need to be very cautious because if it is broken and sodium comes in make contact with with moisture, it may possibly result in fire.<br><br>All electric discharge lamps require a higher voltage at the time of beginning and low voltage for the duration of operation. Generally, sodium vapour lamps are operated by a high leakage reactance transformer. At beginning a high voltage of about 450 volts is applied across the lamp which is adequate to start off the discharge. When the lamp is totally operative right after 10 - 15 minutes, the voltage across it falls to about 150 volts. Due to the fact of the high reactance of circuit, the power [http://www.chickencoopselect.com/chicken-runs copyright] aspect is low and therefore a p.f improvement [http://www.chickencoopselect.com/chicken-tractors mobile chicken coop] capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is extremely high (about 40 - 50 lumens/watt) and it produces a light of certain wavelength possessing yellow color. Sodium lamps are mainly employed for street, high way and airfield lighting where color distinction is not so required.

← Предыдущая	Версия 08:44, 26 декабря 2025
(нет различий)

← Предыдущая		Версия 02:25, 27 июня 2012
Строка 1:		Строка 1:
−	Sodium Vapour Lamp consists of a discharge tube ~~created~~ from a heat resistant glass, containing a ~~modest quantity~~ of metallic sodium, neon gas and two electrodes, Neon gas is added to commence the discharge and to ~~develop sufficient~~ heat to vaporize the sodium. ~~Since~~ of law pressure inside the tube, a sufficiently ~~lengthy~~ tube needed to ~~obtain much~~ more light. To reduce the overall dimension of the lamp, this tube is normally bent into U-shape.<br><br>The light produced by this lamp is yellowish which is ~~made~~ at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes ~~required~~ to ~~sustain~~ this temperature. For this ~~goal~~ the U-tube is enclosed in a double walled flask to ~~stop shed~~ of heat. The double walled flask is interchangeable and can be fitted on to ~~another~~ U-tube. ~~Whilst~~ replacing the inner U-tube ~~a single [http://www.chickencoopselect.com/chicken-tractors movable chicken coop talk] must~~ be ~~quite careful due to the fact~~ if it is broken and sodium comes in speak to with moisture, it ~~might~~ result in fire.<br><br>All electric discharge lamps ~~[http://www.chickencoopselect.com/chicken-tractors quality urban chicken tractor] need~~ a ~~greater~~ voltage at the time of beginning and low voltage ~~during~~ operation. ~~Normally~~, sodium vapour lamps are operated by a high leakage reactance transformer. At ~~beginning~~ a high voltage of about 450 volts is applied across the lamp which is ~~enough~~ to ~~start~~ the discharge. When the lamp is ~~fully~~ operative after 10 - 15 minutes, the voltage across it falls to about 150 volts. ~~Since~~ of the high reactance of circuit, the power ~~issue~~ is low and therefore a p.f improvement ~~[http://www.chickencoopselect.com/chicken-tractors www]~~ capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is really high (about 40 - 50 lumens/watt) and it produces a light of ~~particular~~ wavelength ~~obtaining~~ yellow color. Sodium lamps are primarily employed for street, high way and airfield lighting where color distinction is not so ~~required~~.	+	Sodium Vapour Lamp consists of a discharge tube made from a heat resistant glass, containing a little amount [http://www.chickencoopselect.com/chicken-tractors open site in new window] of metallic sodium, neon gas and two electrodes, Neon gas is added to commence the discharge and to create adequate heat to vaporize the sodium. Simply because of law pressure inside the tube, a sufficiently extended tube needed to acquire more light. To reduce the overall dimension of the lamp, this tube is normally bent into U-shape.<br><br>The light produced by this lamp is yellowish which is created at its optimum pressure of about .004mm of mercury. This [http://www.chickencoopselect.com/chicken-tractors chicken coop with wheels] pressure is obtained at a temperature of about 280 C and so it becomes essential to maintain this temperature. For this objective the U-tube is enclosed in a [http://www.chickencoopselect.com/ rent chicken koops] double walled flask to avoid lose of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. Although replacing the inner U-tube one particular need to be really cautious since if it is broken and sodium comes in speak to with moisture, it may result in fire.<br><br>All electric discharge lamps call for a higher voltage at the time of beginning and low voltage throughout operation. Typically, sodium vapour lamps are operated by a high leakage reactance transformer. At starting a high voltage of about 450 volts is applied across the lamp which is sufficient to commence the discharge. When the lamp is totally operative right after ten - 15 minutes, the voltage across it falls to about 150 volts. Because of the high reactance of circuit, the power element is low and therefore a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is really high (about 40 - 50 lumens/watt) and it produces a light of distinct wavelength getting yellow color. Sodium lamps are primarily employed for street, high way and airfield lighting exactly where color distinction is not so essential.

← Предыдущая		Версия 02:23, 27 июня 2012
Строка 1:		Строка 1:
−	Sodium Vapour Lamp consists of a discharge tube ~~made~~ from a heat resistant glass, containing a modest ~~amount~~ of metallic sodium, neon ~~[http://www.chickencoopselect.com/ follow us on twitter]~~ gas and two electrodes, Neon gas is added to ~~start off~~ the discharge and to ~~create enough~~ heat to vaporize the sodium. ~~Simply because~~ of law pressure inside the tube, a sufficiently ~~long~~ tube ~~necessary~~ to ~~acquire~~ much more light. To ~~decrease~~ the overall dimension of the lamp, this tube is ~~generally~~ bent into U-shape.<br><br>The light produced by this lamp is yellowish which is made at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes ~~essential~~ to sustain this temperature. For this ~~purpose~~ the U-tube is enclosed in a double walled flask to ~~avoid~~ shed of heat. The double walled flask is interchangeable and can be fitted on to ~~an additional~~ U-tube. ~~Even though~~ replacing the [http://www.chickencoopselect.com/chicken-tractors chicken coop ~~tractor~~] ~~inner U-tube 1 need to~~ be quite careful due to the fact if it is broken and sodium comes in ~~contact~~ with moisture, it ~~could~~ [http://www.chickencoopselect.com/chicken-tractors ~~tell us what you think~~] ~~result in fire.<br><br>All electric discharge lamps call for~~ a greater voltage at the time of ~~starting~~ and low voltage ~~for the duration of~~ operation. ~~Generally~~, sodium vapour lamps are operated by a high leakage reactance transformer. At ~~starting~~ a high voltage of about 450 volts is applied across the lamp which is ~~adequate~~ to start ~~off~~ the discharge. When the lamp is fully operative ~~right~~ after ~~ten~~ - 15 minutes, the voltage across it falls to about 150 volts. ~~Due to the fact~~ of the high reactance of circuit, the power ~~factor~~ is low and ~~hence~~ a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is really high (about 40 - 50 lumens/watt) and it produces a light of ~~specific~~ wavelength ~~getting~~ yellow color. Sodium lamps are ~~mainly~~ employed for street, high way and airfield lighting ~~exactly~~ where color distinction is not so ~~essential~~.	+	Sodium Vapour Lamp consists of a discharge tube created from a heat resistant glass, containing a modest quantity of metallic sodium, neon gas and two electrodes, Neon gas is added to commence the discharge and to develop sufficient heat to vaporize the sodium. Since of law pressure inside the tube, a sufficiently lengthy tube needed to obtain much more light. To reduce the overall dimension of the lamp, this tube is normally bent into U-shape.<br><br>The light produced by this lamp is yellowish which is made at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes required to sustain this temperature. For this goal the U-tube is enclosed in a double walled flask to stop shed of heat. The double walled flask is interchangeable and can be fitted on to another U-tube. Whilst replacing the inner U-tube a single [http://www.chickencoopselect.com/chicken-tractors movable chicken coop talk] must be quite careful due to the fact if it is broken and sodium comes in speak to with moisture, it might result in fire.<br><br>All electric discharge lamps [http://www.chickencoopselect.com/chicken-tractors quality urban chicken tractor] need a greater voltage at the time of beginning and low voltage during operation. Normally, sodium vapour lamps are operated by a high leakage reactance transformer. At beginning a high voltage of about 450 volts is applied across the lamp which is enough to start the discharge. When the lamp is fully operative after 10 - 15 minutes, the voltage across it falls to about 150 volts. Since of the high reactance of circuit, the power issue is low and therefore a p.f improvement [http://www.chickencoopselect.com/chicken-tractors www] capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is really high (about 40 - 50 lumens/watt) and it produces a light of particular wavelength obtaining yellow color. Sodium lamps are primarily employed for street, high way and airfield lighting where color distinction is not so required.

← Предыдущая		Версия 03:36, 20 июня 2012
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−	Sodium Vapour Lamp consists of a discharge tube ~~created~~ from a heat resistant glass, containing a ~~small quantity~~ of metallic sodium, neon gas and two electrodes, Neon gas is added to ~~commence~~ the discharge and to ~~develop~~ enough heat to vaporize the sodium. Simply because of law pressure inside the tube, a sufficiently long tube necessary to ~~obtain a lot~~ more light. To ~~reduce~~ the overall dimension of the lamp, this tube is ~~typically~~ bent into U-shape.<br><br>The light ~~created~~ by this lamp is yellowish which is ~~created~~ at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes essential to ~~preserve~~ this temperature. For this purpose the U-tube is enclosed in a double walled flask to ~~prevent [http://www.chickencoopselect.com/small-chicken-coops company web site]~~ shed of heat. The double walled flask is interchangeable and can be fitted on to ~~one more~~ U-tube. Even though replacing the inner U-tube ~~one particular~~ need to be ~~very~~ careful ~~simply because~~ if it is broken and sodium comes in ~~speak to~~ with moisture, it ~~may~~ result in fire.<br><br>All electric discharge lamps ~~require [http://www.chickencoopselect.com/ chickens coops]~~ a ~~higher~~ voltage at the time of ~~beginning~~ and low voltage for the duration of operation. Generally, sodium vapour lamps are operated by a high leakage reactance ~~[http://www.chickencoopselect.com/chicken-houses look into chicken house for sale]~~ transformer. At ~~beginning~~ a high voltage of about 450 volts is applied across the lamp which is ~~enough~~ to ~~begin~~ the discharge. When the lamp is ~~completely~~ operative ~~immediately~~ after 10 - 15 minutes, the voltage across it falls to about 150 volts. ~~Since~~ of the high reactance of circuit, the power ~~aspect~~ is low and hence a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is ~~quite~~ high (about 40 - 50 lumens/watt) and it produces a light of ~~distinct~~ wavelength ~~obtaining~~ yellow color. Sodium lamps are mainly employed for street, high way and airfield lighting where color distinction is not so ~~required~~.	+	Sodium Vapour Lamp consists of a discharge tube made from a heat resistant glass, containing a modest amount of metallic sodium, neon [http://www.chickencoopselect.com/ follow us on twitter] gas and two electrodes, Neon gas is added to start off the discharge and to create enough heat to vaporize the sodium. Simply because of law pressure inside the tube, a sufficiently long tube necessary to acquire much more light. To decrease the overall dimension of the lamp, this tube is generally bent into U-shape.<br><br>The light produced by this lamp is yellowish which is made at its optimum pressure of about .004mm of mercury. This pressure is obtained at a temperature of about 280 C and so it becomes essential to sustain this temperature. For this purpose the U-tube is enclosed in a double walled flask to avoid shed of heat. The double walled flask is interchangeable and can be fitted on to an additional U-tube. Even though replacing the [http://www.chickencoopselect.com/chicken-tractors chicken coop tractor] inner U-tube 1 need to be quite careful due to the fact if it is broken and sodium comes in contact with moisture, it could [http://www.chickencoopselect.com/chicken-tractors tell us what you think] result in fire.<br><br>All electric discharge lamps call for a greater voltage at the time of starting and low voltage for the duration of operation. Generally, sodium vapour lamps are operated by a high leakage reactance transformer. At starting a high voltage of about 450 volts is applied across the lamp which is adequate to start off the discharge. When the lamp is fully operative right after ten - 15 minutes, the voltage across it falls to about 150 volts. Due to the fact of the high reactance of circuit, the power factor is low and hence a p.f improvement capacitor is connected.<br><br>The efficiency of a low pressure sodium vapour lamp is really high (about 40 - 50 lumens/watt) and it produces a light of specific wavelength getting yellow color. Sodium lamps are mainly employed for street, high way and airfield lighting exactly where color distinction is not so essential.