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An electrically conductive mounting/grounding clip, usable with a photovoltaic (PV) assembly of the type having an electrically conductive frame, comprises an electrically conductive body. The body has a central portion and first and second spaced-apart arms extending from the central portion. Each

An electrically conductive mounting/grounding clip, usable with a photovoltaic (PV) assembly of the type having an electrically conductive frame, comprises an electrically conductive body. The body has a central portion and first and second spaced-apart arms extending from the central portion. Each arm has first and second outer portions with frame surface-disrupting element at the outer portions.

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What is claimed is: 1. A clip for use with a photovoltaic (PV) assembly of the type including an electrically conductive frame, the clip comprising: an electrically conductive body comprising a central portion and first and second spaced-apart arms extending from the central portion; each arm havin

What is claimed is: 1. A clip for use with a photovoltaic (PV) assembly of the type including an electrically conductive frame, the clip comprising: an electrically conductive body comprising a central portion and first and second spaced-apart arms extending from the central portion; each arm having first and second outer portions with frame surface-disrupting, electrical contact element at the outer portions; and each arm extending from the central portion at an acute angle to the central portion. 2. The clip according to claim 1, wherein the frame surface-disrupting elements point generally towards the central portion. 3. The clip according to claim 1, further comprising a plurality of said frame surface-disrupting elements at each outer end. 4. The clip according to claim 1, wherein the frame surface-disrupting elements of each arm can be oriented in a direction generally perpendicular to the PV assembly. 5. The clip according to claim 1, wherein the frame surface-disrupting element comprises surface-penetrating teeth. 6. The clip according to claim 1, wherein the body is generally U-shaped. 7. The clip according to claim 1, wherein the body comprises two arms and two outer portions for each arm. 8. The clip according to claim 1, wherein: the central portion and the first and second arms define a generally U-shaped path; and the outer portions extend in directions generally perpendicular to the generally U-shaped path. 9. The clip according to claim 1, wherein said first and second arms define first and second arm planes, respectively, the outer portions of said first arm lying in the first arm plane and the outer portions of said second arm lying in the second arm plane. 10. The clip according to claim 1, further comprising: a second member; and an elongated connection element securing the clip to the second member so that the frame surface-disrupting element can be forced against PV assemblies thereby electrically connecting the PV assemblies to one another through the clip. 11. The clip according to claim 10, further comprising means for preventing the clip from tipping away from a PV assembly as the clip is biased against the PV assembly by the elongated connection element. 12. The clip according to claim 10, wherein the central portion comprises an opening and the elongated connection element passes through the opening, the connection element having an upper end, the upper end located completely between the first and second arms. 13. The clip according to claim 12, wherein connection element comprises a bolt, the upper end comprises a bolt head, and the second member comprises a threaded hole with which the bolt is threadably engaged. 14. The clip according to claim 12, wherein connection element comprises a stud extending from the second member and the upper end comprises a threaded portion of the stud and a nut threadably engaging the threaded portion. 15. A clip for use with a photovoltaic (PV) assembly of the type including an electrically conductive frame, the clip comprising: an electrically conductive body comprising a central portion and first and second spaced-apart arms extending from the central portion; each arm extending from the central portion at an acute angle to the central portion; each arm having first and second outer portions with frame surface-penetrating, electrical contact elements at each outer portion; the frame surface-penetrating elements pointing generally towards the central portion; and the frame surface-penetrating elements of each arm being orientable in a direction generally perpendicular to the PV assembly. 16. The clip according to claim 15, wherein: the central portion and the first and second arms define a generally U-shaped path; and the outer portions extend in directions generally perpendicular to the generally U-shaped path. 17. A photovoltaic (PV) installation comprising: a support; first and second PV assemblies of the type having electrically conductive frames separated by a gap, the frames each having an upper surface; and a clip assembly for use with the first and second PV assemblies, the clip assembly comprising: an electrically conductive clip comprising: an electrically conductive body comprising a central portion and first and second spaced-apart arms extending from the central portion; each arm extending from the central portion at an acute angle to the central portion; and each arm having first and second outer portions with frame surface-disrupting, electrical contact elements at the outer portions. 18. The photovoltaic installation according to claim 17, wherein: the central portion and the first and second arms define a generally U-shaped path; and the outer portions extend in directions generally perpendicular to the generally U-shaped path. 19. A clip for use with a photovoltaic (PV) assembly of the type including an electrically conductive frame, the clip comprising: an electrically conductive body comprising a central portion and first and second spaced-apart arms extending from the central portion; the central portion and the first and second arms defining a generally U-shaped path; each arm having first and second outer portions with frame surface-disrupting, electrical contact element at the outer portions; and the outer portions extending in directions transverse to the generally U-shaped path; wherein each arm extends from the central portion at an acute angle to the central portion. 20. The clip according to claim 19, wherein the outer portions extend in directions generally perpendicular to the generally U-shaped path. 21. The clip according to claim 19, further comprising: a second member; and an elongated connection member securing the clip to the second member so that the frame surface-disrupting element can be forced against PV assemblies thereby electrically connecting the PV assemblies to one another through the clip. 22. The clip according to claim 19, wherein the frame surface-disrupting portion comprises surface-penetrating teeth.