Lighting system and method

Abstract

Lighting systems and methods are described, including track lighting systems and methods.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a lighting system according to an embodiment, which includes a track according to an embodiment, a power feed assembly according to an embodiment, a support assembly according to an embodiment, and a lamp assembly according to an embodiment.

FIG. 2 is a sectional view of the track of FIG. 1 taken along line 2-2.

FIG. 3 is enlarged perspective view of the power feed assembly of FIG. 1.

FIG. 4A is an exploded view of the power feed assembly of FIG. 1.

FIG. 4B is an enlarged view of a portion of the exploded view depicted in FIG. 4A.

FIG. 5 is a perspective view of a contact pad assembly of the power feed assembly of FIG. 1.

FIG. 6 is a sectional view of the power feed assembly of FIG. 1.

FIG. 7 is a partial sectional/partial elevational view of the power feed assembly of FIG. 1, except that wiring has been removed for clarity.

FIGS. 8A, 8B, 8C, 8D and 8E are elevational views depicting the coupling of the track of FIG. 1 to the power feed assembly of FIG. 1.

FIG. 9A is a partial sectional/partial top plan view of the track of FIG. 1 coupled to the power feed assembly of FIG. 1, but with selected components of the assemblies removed for clarity.

FIG. 9B is a view similar to that of FIG. 9A but depicting the track in a flexed or bent configuration.

FIG. 10 is a partial exploded/partial perspective view of a power feed assembly according to another embodiment and coupled to the track of FIG. 1.

FIG. 11 is a perspective view of a power feed assembly according to another embodiment.

FIG. 12 is a sectional view of a portion of the power feed assembly of FIG. 11.

FIG. 13 is an elevational view depicting the track of FIG. 1 coupled to the power feed assembly of FIG. 11.

FIG. 14 is an elevational view depicting the track of FIG. 1 coupled to the power feed assembly of FIG. 1, the power feed assembly of FIG. 11 and a power feed assembly substantially identical to the power feed assembly of FIG. 1.

FIGS. 15A, 15B and 15C are sectional views of the track of FIG. 14 taken along lines 15A-15A, 15B-15B and 15C-15C, respectively.

FIG. 16 is a perspective view of a power feed assembly according to another embodiment.

FIG. 17 is an enlarged perspective view of the support assembly of FIG. 1.

FIG. 18 is an exploded view of a portion of the support assembly of FIGS. 1 and 17.

FIG. 19A is a partial perspective/partial exploded view of a support assembly according to another embodiment.

FIG. 19B is a sectional view of a portion of the support assembly of FIG. 19A.

FIG. 20 is an enlarged perspective view of the lamp assembly of FIG. 1.

FIGS. 21A, 21B, 21C, 21D and 21E are elevational views depicting the coupling of the lamp assembly of FIGS. 1 and 20 to the track of FIG. 1.

FIG. 22 is an elevational view of a lamp assembly according to another embodiment and coupled to the track of FIG. 1.

FIG. 23 is a perspective view of a lamp assembly according to another embodiment and coupled to the track of FIG. 1.

FIG. 24 is a diagrammatic view of a lighting system according to an embodiment and coupled to the track of FIG. 1.

FIG. 25 is a perspective view of a lighting system according to another embodiment.

FIG. 26 is a perspective view of a lighting system according to another embodiment.

FIG. 27 is a perspective view of a transformer assembly according to an embodiment and coupled to the track of FIG. 1.

FIG. 28A is an exploded view of the transformer assembly of FIG. 27.

FIG. 28B is a sectional view of a track adapter of the transformer assembly of FIGS. 27 and 28A, a perspective view of which is depicted in FIG. 28A.

FIGS. 28C and 28D are respective perspective views of covers of the transformer assembly of FIG. 27.

FIG. 28E is a perspective view of another track adapter of the transformer assembly of FIGS. 27 and 28A.

FIG. 28F is a perspective view of the transformer assembly of FIGS. 27 and 28A and depicts another operational position of the covers of FIGS. 28C and 28D.

FIGS. 28G and 28H are end views of the covers of FIGS. 28C and 28D, respectively, of the transformer assembly of FIGS. 27 and 28A.

FIG. 29 is a simplified partial sectional/partial top plan view of the transformer assembly of FIGS. 27 and 28A and depicts operational positions of the covers of FIGS. 28C and 28D.

FIG. 30A is a view similar to that of FIG. 29 but depicting other operational positions of the covers of FIGS. 28C and 28D.

FIG. 30B is a perspective view of the transformer assembly of FIGS. 27 and 28A and depicts the same operational positions of the covers of FIGS. 28C and 28D that are depicted in FIG. 30A.

FIG. 31A is a view similar to that of FIG. 29 but depicting yet other operational positions of the covers of FIGS. 28C and 28D.

FIG. 31B is a view similar to that of FIG. 30B but depicts the same operational positions of the covers of FIGS. 28C and 28D that are depicted in FIG. 31A.

FIG. 32 is an elevational view of one end of the transformer assembly and track of FIG. 27.

FIG. 33 is an elevational view of the other end of the transformer assembly and track of FIG. 27.

FIG. 34A is a simplified partial sectional/partial top plan view of the transformer assembly and track of FIG. 27.

FIG. 34B is a view similar to that of FIG. 34A but depicting the track in a flexed or bent configuration.

FIG. 35 is a partial sectional/partial diagrammatic view of the transformer assembly and track of FIG. 27.

FIG. 36 is a view similar to that of FIG. 27 but depicting the lamp assembly of FIG. 1 and the lamp assembly of FIG. 25 coupled to the track.

FIG. 37 is a view similar to that of FIG. 35 but depicting an alternative electrical coupling between the transformer assembly and track of FIG. 27.

FIG. 38 is a perspective view of a transformer assembly according to an another embodiment and coupled to the track of FIG. 1, with the transformer assembly including covers in an operational position.

FIG. 39 is an exploded view of the transformer assembly of FIG. 38.

FIG. 40A is a perspective view of the transformer assembly of FIG. 38 depicting the covers in another operational position.

FIG. 40B is an end view of a cover of the transformer assembly of FIG. 38.

FIG. 40C is an end view of the other cover of the transformer assembly of FIG. 38.

FIG. 41 is a simplified partial sectional/partial top plan view of the transformer assembly of FIG. 38, with the covers of the transformer assembly in the same operational positions as depicted in FIG. 38.

FIG. 42A is a view similar to that of FIG. 41 but depicting other operational positions of the covers of the transformer assembly of FIG. 38.

FIG. 42B is a perspective view of the transformer assembly of FIG. 38 and depicts the same operational positions of the covers that are depicted in FIG. 42A.

FIG. 43A is a view similar to that of FIG. 41 but depicting yet other operational positions of the covers of the transformer assembly of FIG. 38.

FIG. 43B is a perspective view of the transformer assembly of FIG. 38 and depicts the same operational positions of the covers that are depicted in FIG. 43A.

FIG. 44A is an elevational view of one end of the transformer assembly and track of FIG. 38.

FIG. 44B is a partial sectional/partial diagrammatic view of the transformer assembly and track of FIG. 38, and is similar to FIG. 44A.

FIG. 45 is a perspective view of a lighting system according to another embodiment.

FIG. 46 is a perspective view of a lighting system according to another embodiment.

FIG. 47 is a perspective view of a track-connection system according to an embodiment.

FIG. 48 is a partial exploded/partial perspective view of several components of the track-connection system of FIG. 47, including a cover, upper and lower housings, and side housings.

FIG. 49 is a sectional view of the cover and upper and lower housings of the track-connection system of FIG. 47.

FIG. 50 is an exploded view of one of the side housings of the track-connection system of FIG. 47.

FIG. 51 is a sectional view of the side housing depicted in FIG. 50.

FIG. 52 is another sectional view of the side housing depicted in FIG. 50.

FIG. 53 is a simplified perspective view of the track-connection system of FIG. 47 depicting a wiring configuration according to an embodiment.

FIG. 54 is a top plan view of the track-connection system of FIG. 47.

FIG. 55 is a perspective view of a track-connection system according to another embodiment.

FIG. 56 is a partial exploded/partial perspective view of several components of the track-connection system of FIG. 55.

FIG. 57 is a diagrammatic view of the track-connection system of FIG. 55 depicting a wiring configuration according to an embodiment.

FIG. 58 is a perspective view of a track-connection system according to another embodiment.

FIG. 59 is an exploded view of a portion of the track-connection system of FIG. 58.

FIG. 60 is a sectional view of the portion of the track-connection system depicted in FIG. 59 taken along line 60-60.

FIG. 61 is a sectional view of the portion of the track-connection system depicted in FIGS. 59 and 60 and taken along line 61-61.

FIG. 62 is a diagrammatic view of the track-connection system of FIG. 58 depicting a wiring configuration according to an embodiment.

FIG. 63A is a top plan view of the track-connection system of FIG. 58.

FIG. 63B is another top plan view of the track-connection system of FIG. 58 but depicting a track extending all the way through the portion of the track-connection system depicted in FIGS. 59, 60 and 61.

FIG. 64 is a perspective view of a track-connection system according to another embodiment.

FIG. 65 is a partial exploded/partial perspective view of the track-connection system of FIG. 64.

FIG. 66 is a sectional view of a portion of the track-connection system of FIG. 64.

FIG. 67 is an exploded view of a side housing of the track-connection system of FIG. 64.

FIG. 68 is a sectional view of the side housing depicted in FIG. 67.

FIG. 69 is a top plan view of the track-connection system of FIG. 64.

FIG. 70 is a perspective view of a track-connection system according to another embodiment.

FIG. 71 is an exploded view of the track-connection system of FIG. 70.

FIG. 72 is a sectional view of the track-connection system of FIG. 70.

FIG. 73 is a perspective view of an end cap coupled to the track of FIG. 1.

FIGS. 74A, 74B, 74C, 74D, 74E, 74F, 74G, 74H and 74I are top plan views of lighting systems according to various embodiments.

FIG. 75 is a perspective view of a power feed assembly according to another embodiment.

Claims

1. A system comprising: a lighting track comprising first, second and third pairs of buss bars;wherein the first, second and third pairs of buss bars are electrically isolated from one another.

2. The system of claim 1 wherein the lighting track comprises: an I-beam protrusion defining first and second channels; andfirst and second insulated liners extending within the first and second channels, respectively, of the I-beam protrusion;wherein each of the first and second insulated liners comprises first, second and third channels;wherein one buss bar in the first pair of buss bars extends in the first channel of the first insulated liner and the other buss bar in the first pair of buss bars extends in the third channel of the first insulated liner;wherein one buss bar in the second pair of buss bars extends in the first channel of the second insulated liner and the other buss bar in the second pair of buss bars extends in the third channel of the second insulated liner; andwherein one buss bar in the third pair of buss bars extends in the second channel of the first insulated liner and the other buss bar in the third pair of buss bars extends in the second channel of the second insulated liner.

3. The system of claim 2 wherein the lighting track further comprises: first and second protrusions extending from the I-beam protrusion and at least partially defining a channel; andthird and fourth protrusions extending from the I-beam protrusion and at least partially defining a channel.

4. The system of claim 3 wherein the channel at least partially defined by the first and second protrusions is adapted to engage a tongue-in-groove attachment used to at least partially support the lighting track; and wherein the channel at least partially defined by the third and fourth protrusions is adapted to engage a tongue-in-groove attachment so that the lighting track at least partially supports a device coupled to the tongue-in-groove attachment.

5. The system of claim 3 wherein the first, second, third and fourth protrusions are sized so that the lighting track is symmetric about a vertical center axis and asymmetric about a horizontal center axis to provide polarity.

6. The system of claim 1 further comprising: a first source of electrical power electrically coupled to the first pair of buss bars, wherein the first source of electrical power is adapted to generate a first voltage across the first pair of buss bars;a second source of electrical power electrically coupled to the second pair of buss bars, wherein the second source of electrical power is adapted to generate a second voltage across the second pair of buss bars; anda third source of electrical power electrically coupled to the third pair of buss bars, wherein the third source of electrical power is adapted to generate a third voltage across the third pair of buss bars.

7. A system comprising: a flexible lighting track comprising: a straight configuration; anda flexed configuration in which the flexible lighting track comprises a bend.

8. The system of claim 7 wherein the flexible lighting track comprises first, second and third pairs of buss bars; wherein the first, second and third pairs of buss bars are electrically isolated from one another.

9. The system of claim 8 wherein the flexible lighting track comprises: an I-beam protrusion defining first and second channels; andfirst and second insulated liners extending within the first and second channels, respectively, of the I-beam protrusion;wherein each of the first and second insulated liners comprises first, second and third channels;wherein one buss bar in the first pair of buss bars extends in the first channel of the first insulated liner and the other buss bar in the first pair of buss bars extends in the third channel of the first insulated liner;wherein one buss bar in the second pair of buss bars extends in the first channel of the second insulated liner and the other buss bar in the second pair of buss bars extends in the third channel of the second insulated liner; andwherein one buss bar in the third pair of buss bars extends in the second channel of the first insulated liner and the other buss bar in the third pair of buss bars extends in the second channel of the second insulated liner.

10. The system of claim 9 wherein the flexible lighting track further comprises: first and second protrusions extending from the I-beam protrusion and at least partially defining a channel; andthird and fourth protrusions extending from the I-beam protrusion and at least partially defining a channel.

11. The system of claim 10 wherein the channel at least partially defined by the first and second protrusions is adapted to engage a tongue-in-groove attachment used to at least partially support the flexible lighting track; and wherein the channel at least partially defined by the third and fourth protrusions is adapted to engage a tongue-in-groove attachment so that the flexible lighting track at least partially supports a device coupled to the tongue-in-groove attachment.

12. The system of claim 10 wherein the first, second, third and fourth protrusions are sized so that the flexible lighting track is symmetric about a vertical center axis and asymmetric about a horizontal center axis to provide polarity.

13. The system of claim 8 further comprising: a first source of electrical power electrically coupled to the first pair of buss bars, wherein the first source of electrical power is adapted to generate a first voltage across the first pair of buss bars;a second source of electrical power electrically coupled to the second pair of buss bars, wherein the second source of electrical power is adapted to generate a second voltage across the second pair of buss bars; anda third source of electrical power electrically coupled to the third pair of buss bars, wherein the third source of electrical power is adapted to generate a third voltage across the third pair of buss bars.

14. A system comprising: a flexible lighting track comprising: a straight configuration; anda flexed configuration in which the flexible lighting track comprises a bend;first, second and third pairs of buss bars, wherein the first, second and third pairs of buss bars are electrically isolated from one another;an I-beam protrusion defining first and second channels;first and second insulated liners extending within the first and second channels, respectively, of the I-beam protrusion;wherein each of the first and second insulated liners comprises first, second and third channels;wherein one buss bar in the first pair of buss bars extends in the first channel of the first insulated liner and the other buss bar in the first pair of buss bars extends in the third channel of the first insulated liner;wherein one buss bar in the second pair of buss bars extends in the first channel of the second insulated liner and the other buss bar in the second pair of buss bars extends in the third channel of the second insulated liner; andwherein one buss bar in the third pair of buss bars extends in the second channel of the first insulated liner and the other buss bar in the third pair of buss bars extends in the second channel of the second insulated liner.

15. A system comprising: a flexible lighting track comprising: a straight configuration; anda flexed configuration in which the flexible lighting track comprises a bend;first, second and third pairs of buss bars, wherein the first, second and third pairs of buss bars are electrically isolated from one another;an I-beam protrusion defining first and second channels;first and second insulated liners extending within the first and second channels, respectively, of the I-beam protrusion;wherein each of the first and second insulated liners comprises first, second and third channels;wherein one buss bar in the first pair of buss bars extends in the first channel of the first insulated liner and the other buss bar in the first pair of buss bars extends in the third channel of the first insulated liner;wherein one buss bar in the second pair of buss bars extends in the first channel of the second insulated liner and the other buss bar in the second pair of buss bars extends in the third channel of the second insulated liner;wherein one buss bar in the third pair of buss bars extends in the second channel of the first insulated liner and the other buss bar in the third pair of buss bars extends in the second channel of the second insulated liner;wherein the flexible lighting track further comprises: first and second protrusions extending from the I-beam protrusion and at least partially defining a channel;wherein the channel at least partially defined by the first and second protrusions is adapted to engage a tongue-in-groove attachment;wherein the flexible lighting track further comprises: third and fourth protrusions extending from the I-beam protrusion and at least partially defining a channel;wherein the channel at least partially defined by the third and fourth protrusions is adapted to engage a tongue-in-groove attachment so that the flexible lighting track is adapted to at least partially support a device coupled to the tongue-in-groove attachment;wherein the first, second, third and fourth protrusions are sized so that the flexible lighting track is symmetric about a vertical center axis and asymmetric about a horizontal center axis to provide polarity;wherein the flexible lighting track has a minimum bend radius of about 24 inches;wherein the maximum current-carrying capacity of each of the buss bars in the first and third pairs of buss bars is about 20 A; andwherein the maximum current-carrying capacity of each of the buss bars in the second pair of buss bars is about 25 A.

16. A method comprising: providing a flexible lighting track; andplacing the flexible lighting track in a flexed configuration so that the flexible lighting track comprises a bend.

17. The method of claim 16 wherein the flexible lighting track comprises first, second and third pairs of buss bars; wherein the first, second and third pairs of buss bars are electrically isolated from one another.

18. The method of claim 17 wherein the flexible lighting track comprises an I-beam protrusion defining first and second channels; and wherein the method further comprises:extending first and second insulated liners within the first and second channels, respectively, of the I-beam protrusion, wherein each of the first and second insulated liners comprises first, second and third channels;extending one buss bar in the first pair of buss bars in the first channel of the first insulated liner and extending the other buss bar in the first pair of buss bars in the third channel of the first insulated liner;extending one buss bar in the second pair of buss bars in the first channel of the second insulated liner and extending the other buss bar in the second pair of buss bars in the third channel of the second insulated liner; andextending one buss bar in the third pair of buss bars in the second channel of the first insulated liner and extending the other buss bar in the third pair of buss bars in the second channel of the second insulated liner.

19. The method of claim 18 wherein the flexible lighting track further comprises: first and second protrusions extending from the I-beam protrusion and at least partially defining a channel; andthird and fourth protrusions extending from the I-beam protrusion and at least partially defining a channel.

20. The method of claim 19 further comprising: engaging a tongue-in-groove attachment with the channel at least partially defined by the first and second protrusions to at least partially support the flexible lighting track.

21. The method of claim 19 further comprising: engaging a tongue-in-groove attachment with the channel at least partially defined by the third and fourth protrusions so that the flexible lighting track at least partially supports a device coupled to the tongue-in-groove attachment.

22. The method of claim 19 wherein the first, second, third and fourth protrusions are sized so that the flexible lighting track is symmetric about a vertical center axis and asymmetric about a horizontal center axis to provide polarity.

23. The method of claim 17 further comprising: electrically coupling a first source of electrical power to the first pair of buss bars;generating a first voltage across the first pair of buss bars using the first source of electrical power;electrically coupling a second source of electrical power to the second pair of buss bars;generating a second voltage across the second pair of buss bars using the second source of electrical power;electrically coupling a third source of electrical power to the third pair of buss bars; andgenerating a third voltage across the second pair of buss bars using the third source of electrical power.

24. The method of claim 17 further comprising: transferring electrical power to the first pair of buss bars so that a first voltage is generated across the first pair of buss bars;accommodating the flexed configuration of the flexible lighting track during transferring electrical power to the first pair of buss bars so that the first voltage is generated across the first pair of buss bars;transferring electrical power to the second pair of buss bars so that a second voltage is generated across the second pair of buss bars;accommodating the flexed configuration of the flexible lighting track during transferring electrical power to the second pair of buss bars so that the second voltage is generated across the second pair of buss bars;transferring electrical power to the third pair of buss bars so that a third voltage is generated across the third pair of buss bars; andaccommodating the flexed configuration of the flexible lighting track during transferring electrical power to the third pair of buss bars so that the third voltage is generated across the third pair of buss bars.

25. A method comprising: providing a flexible lighting track; andplacing the flexible lighting track in a flexed configuration so that the flexible lighting track comprises a bend;wherein the flexible lighting track comprises first, second and third pairs of buss bars;wherein the first, second and third pairs of buss bars are electrically isolated from one another;wherein the flexible lighting track comprises: an I-beam protrusion defining first and second channels;wherein the method further comprises: extending first and second insulated liners within the first and second channels, respectively, of the I-beam protrusion;wherein each of the first and second insulated liners comprises first, second and third channels; andwherein the method further comprises: extending one buss bar in the first pair of buss bars in the first channel of the first insulated liner and extending the other buss bar in the first pair of buss bars in the third channel of the first insulated liner;extending one buss bar in the second pair of buss bars in the first channel of the second insulated liner and extending the other buss bar in the second pair of buss bars in the third channel of the second insulated liner; andextending one buss bar in the third pair of buss bars in the second channel of the first insulated liner and extending the other buss bar in the third pair of buss bars in the second channel of the second insulated liner.

26. A method comprising: providing a flexible lighting track; andplacing the flexible lighting track in a flexed configuration so that the flexible lighting track comprises a bend;wherein the flexible lighting track comprises first, second and third pairs of buss bars;wherein the first, second and third pairs of buss bars are electrically isolated from one another;wherein the flexible lighting track comprises: an I-beam protrusion defining first and second channels;wherein the method further comprises: extending first and second insulated liners within the first and second channels, respectively, of the I-beam protrusion;wherein each of the first and second insulated liners comprises first, second and third channels;wherein the method further comprises: extending one buss bar in the first pair of buss bars in the first channel of the first insulated liner and extending the other buss bar in the first pair of buss bars in the third channel of the first insulated liner;extending one buss bar in the second pair of buss bars in the first channel of the second insulated liner and extending the other buss bar in the second pair of buss bars in the third channel of the second insulated liner; andextending one buss bar in the third pair of buss bars in the second channel of the first insulated liner and extending the other buss bar in the third pair of buss bars in the second channel of the second insulated liner;wherein the flexible lighting track further comprises: first and second protrusions extending from the I-beam protrusion and at least partially defining a channel;wherein the flexible lighting track further comprises: third and fourth protrusions extending from the I-beam protrusion and at least partially defining a channel;wherein the first, second, third and fourth protrusions are sized so that the flexible lighting track is symmetric about a vertical center axis and asymmetric about a horizontal center axis to provide polarity;wherein the flexible lighting track has a minimum bend radius of about 24 inches;wherein the maximum current-carrying capacity of each of the buss bars in the first and third pairs of buss bars is about 20 A; andwherein the maximum current-carrying capacity of each of the buss bars in the second pair of buss bars is about 25 A.

27. A system comprising: a flexible lighting track; andmeans for placing the flexible lighting track in a flexed configuration so that the flexible lighting track comprises a bend.

28. The system of claim 27 wherein the flexible lighting track comprises first, second and third pairs of buss bars; wherein the first, second and third pairs of buss bars are electrically isolated from one another.

29. The system of claim 28 further comprising: means for electrically coupling a first source of electrical power to the first pair of buss bars;means for generating a first voltage across the first pair of buss bars using the first source of electrical power;means for electrically coupling a second source of electrical power to the second pair of buss bars;means for generating a second voltage across the second pair of buss bars using the second source of electrical power;means for electrically coupling a third source of electrical power to the third pair of buss bars; andmeans for generating a third voltage across the second pair of buss bars using the third source of electrical power.

30. The system of claim 28 further comprising: means for transferring electrical power to the first pair of buss bars so that a first voltage is generated across the first pair of buss bars;means for accommodating the flexed configuration of the flexible lighting track during transferring electrical power to the first pair of buss bars so that the first voltage is generated across the first pair of buss bars;means for transferring electrical power to the second pair of buss bars so that a second voltage is generated across the second pair of buss bars;means for accommodating the flexed configuration of the flexible lighting track during transferring electrical power to the second pair of buss bars so that the second voltage is generated across the second pair of buss bars;means for transferring electrical power to the third pair of buss bars so that a third voltage is generated across the third pair of buss bars; andmeans for accommodating the flexed configuration of the flexible lighting track during transferring electrical power to the third pair of buss bars so that the third voltage is generated across the third pair of buss bars.

31. A system comprising: a flexible lighting track; andmeans for placing the flexible lighting track in a flexed configuration so that the flexible lighting track comprises a bend;wherein the flexible lighting track comprises first, second and third pairs of buss bars;wherein the first, second and third pairs of buss bars are electrically isolated from one another;wherein the flexible lighting track comprises: an I-beam protrusion defining first and second channels;wherein the system further comprises: means for extending first and second insulated liners within the first and second channels, respectively, of the I-beam protrusion;wherein each of the first and second insulated liners comprises first, second and third channels; andwherein the system further comprises: means for extending one buss bar in the first pair of buss bars in the first channel of the first insulated liner and extending the other buss bar in the first pair of buss bars in the third channel of the first insulated liner;means for extending one buss bar in the second pair of buss bars in the first channel of the second insulated liner and extending the other buss bar in the second pair of buss bars in the third channel of the second insulated liner; andmeans for extending one buss bar in the third pair of buss bars in the second channel of the first insulated liner and extending the other buss bar in the third pair of buss bars in the second channel of the second insulated liner.

32. A system comprising: a flexible lighting track; andmeans for placing the flexible lighting track in a flexed configuration so that the flexible lighting track comprises a bend;wherein the flexible lighting track comprises first, second and third pairs of buss bars;wherein the first, second and third pairs of buss bars are electrically isolated from one another;wherein the flexible lighting track comprises: an I-beam protrusion defining first and second channels;wherein the system further comprises: means for extending first and second insulated liners within the first and second channels, respectively, of the I-beam protrusion;wherein each of the first and second insulated liners comprises first, second and third channels;wherein the system further comprises: means for extending one buss bar in the first pair of buss bars in the first channel of the first insulated liner and extending the other buss bar in the first pair of buss bars in the third channel of the first insulated liner;means for extending one buss bar in the second pair of buss bars in the first channel of the second insulated liner and extending the other buss bar in the second pair of buss bars in the third channel of the second insulated liner; andmeans for extending one buss bar in the third pair of buss bars in the second channel of the first insulated liner and extending the other buss bar in the third pair of buss bars in the second channel of the second insulated liner;wherein the flexible lighting track further comprises: first and second protrusions extending from the I-beam protrusion and at least partially defining a channel;wherein the flexible lighting track further comprises: third and fourth protrusions extending from the I-beam protrusion and at least partially defining a channel;wherein the first, second, third and fourth protrusions are sized so that the flexible lighting track is symmetric about a vertical center axis and asymmetric about a horizontal center axis to provide polarity;wherein the flexible lighting track has a minimum bend radius of about 24 inches;wherein the maximum current-carrying capacity of each of the buss bars in the first and third pairs of buss bars is about 20 A; andwherein the maximum current-carrying capacity of each of the buss bars in the second pair of buss bars is about 25 A.