Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 Recommendations for Proper Grounding to Minimize Risk of Lightning Damage Lightning Rods Install one or more lightning rods near the Light Engine. The lightning rods should extend a minimum of three feet above the Light Engine. Cable Grounding (Power Supply Side) 1. Measure roughly 10-12 inches (51 foot) of the provided cable. (See Fig.1) 2. Using a knife/ razor, carefully cut the protective cover on the wire, ensuring not to damage the wires and insulating foil inside. DO NOT CUT OFF ANY WIRE, BARE WIRE and/or FOIL. You don’t have to be too conservative with the length of the cable. Having more cable cut is better than having too little cut. (See Fig.1) Figure 1. . _____________________________________________________________________________ 1 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 3. Separate the Drain Wire (Bare wire) from the rest of the bundle. (See Fig.2) Figure 2. 4. Carefully unravel the shielding foil from the bundle of wires. DO NOT CUT OR RIP THE FOIL. (See Fig.3) Figure 3. _____________________________________________________________________________ 2 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 5. Expose the yellow fiber material and remove by cutting. Be careful not to damage the wires or shielding foil. (See Fig.4) Figure 4. 6. Straighten out the foil and then wrap the shielding foil around the wires in the cable. Ensure the SILVER SIDE is facing out and the Blue side is facing the wires. The tighter the wraps, the better it is. Be careful not to use too much force, the foil may rip. (See Fig.5) Figure 5. _____________________________________________________________________________ 3 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 7. After all of the foil is wrapped up, silver side up, place a piece of tape (electrical tape, if possible, but any will do) at the bottom of the wrap to prevent unraveling. Keep the amount of foil being covered by the tape to a minimum. (See Fig.6) Figure 6. 8. Insert cable to the cable receptacle and push/pull cable through till the metal foil is on the inside of the power supply with some slack (about 4-6 inches). Do NOT tighten cable lock nut yet. (See Fig.7) Figure 7. _____________________________________________________________________________ 4 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 9. Connect the all the wires to the terminal block according to the installation manual. (See Fig.8) Figure 8. 10. Place the metal P-Clip (Provided) around the foil. (See Fig.9) P-Clips Green Grounding Screw with Cup Washer Figure 9. _____________________________________________________________________________ 5 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 11. Screw P-Clip into a hole located toward bottom right of mounting plate using screw (provided). Connect drain wire to mounting plate using Green Screw and Cup Washer (provided) also using a hole near bottom right of mounting plate. Cut off excess Drain wire to prevent accidental short circuits. (See Fig.10) Tighten screws. Ensure that none of the colored wires are pinched. Figure 10. 12. Using the provided Ferrite, pass the wires through. Close the Ferrite, ensuring that none of the wires are pinched. DO NOT INCLUDE DRAIN WIRE (BARE WIRE) IN THE FERRITE. (see Fig.11 &12) Figure 11. _____________________________________________________________________________ 6 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 Figure 12. 13. Tighten cable lock nut until the cable is secure in place. (See Fig.7) _____________________________________________________________________________ 7 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 Light Engine Grounding: 1-5. Repeat steps 1-5 of the previous section “Power Supply Grounding” on other end of cable. 6. Straighten out the foil and then wrap the shielding foil around the insulation (Black Outer cover) of the cable. Ensure the SILVER SIDE is facing out and the Blue side is facing the insulation. The tighter the wraps, the better it is. Be careful not to use too much force, the foil may rip. (see Fig.13) The Goal is to make good electrical bond between the foil and metal framing. Make the cable and foil combination thick enough so the cable clamp has a good grip. Figure 13. 7. After all the foil is wrapped up, silver side up, place a piece of tape (electrical tape if possible, but any will do) at the bottom of the wrap to prevent unraveling. Keep the amount of foil being covered by the tape to a minimum. Refer to Figure 6. _____________________________________________________________________________ 8 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 8. Insert the cable into the cable receptacle and position the cable so that the metal foil is inside the nipple and tighten the cable lock nut. (see Fig.14) Ensure the inner metal clamp is making good electrical contact with the foil. Figure 14. 8-1.Use an ohmmeter or continuity to check drain wire electrically connects to metal (screw hole threads can be used) of light engine. (see Fig.15) Figure 15. _____________________________________________________________________________ 9 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 8-2. Internal view of Cable Receptacle in Light Engine Housing. (see Fig.16) Figure 16. 9. Connect the Drain Wire (bare wire) to the Grounding Screw. (see Fig.17) Figure 17. _____________________________________________________________________________ 10 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 11. Connect all wires, matching 1:1, color to color as shown below. Example: red to red, blue to blue, grey to grey, etc. (see Fig. 18) Figure 18. 12. Using the provided Ferrite, pass the wires through. Close the Ferrite, ensuring that none of the wires are pinched. DO NOT INCLUDE DRAIN WIRE (BARE WIRE) IN THE FERRITE. (see Fig. 19) Figure 19. _____________________________________________________________________________ 11 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 13. Close the cover, insuring that no cables or obstructions are caught between the cover plate and the housing and tighten cover bolts. (See Fig.20) Figure 20. _____________________________________________________________________________ 12 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com Document No. 9100-127-1333-99 Rev. A _______________________________________________________________09/24/09 REVISION HISTORY REV ECO No. DRN CKD APP QA CM DATE A ---- JC KH GB RL JB 09/24/09 _____________________________________________________________________________ 13 of 13 Dialight Corporation 1501 Route 34 South Farmingdale NJ 07727 Tel: 732.919.3119 Fax: 732.751.5778 Web: www.dialight.com