Cooper Bussmann 858 instruction manual Danger

DOCUMENT 1025

REV. B

Instruction Manual

AGS-LED

858 LED Series

Sizes 1, 2, 3, 4 and 5

d.The concrete foundation/pad should be not more than 1 inch above grade in order too maintain the 3 inch maximum overall height a bove grade to the point of frangibility per FAA Engiineering Brief no.

79.See the Engineering Brief for acceptable grading around the foundation/pad. T he foundation/pad pad must be level.

e.It is recommended that the conttractor who is to install the concrete foundation/pad use cast in place anchor bolts. The threaded portiion of the anchor bolts should be 1-5/8 inches minimmum to 1-7/8 maximum above the top of the concrete foundation/pad (See Figures 12, 12a-12c). This requires that the anchor bolts be installed acccurately as shown in the concrete foundation/pad dimmensions Figure

13.The clearance holes on the floor flange are 5/8 inch diameter on a 4.75 inch diammeter bolt circle for use with ½ inch anchor bolts.

f.The concrete foundation/pad should include the series isolation transformer housingg. It is recommended that this housing not be placed under the sign power leg to allow acccess to the series isolation transformer and conneections for ease of troubleshooting and servicing (Seee Figures 12, 12a- 12c). This housing would be on the side closest to the Taxiway or Runway. A 2 incch conduit elbow with threaded coupling attachedd at sign end would exit from the transformer housinng side to the foundation/pad and be flush witth the with the top of the concrete foundation/pad gr ade level centered between the floor flange bolts n earest the Taxiway or Runway side of the sign. Thee sign as viewed will have the circuit card box to the right on the “A” side of the sign, which is closest to the Taxiway or Runway side of the sign. If the location requires an additional housing to accommodate multiple messages, then the separation distance between these signs housings can be 3 inches minimum to 12 inches maximum (FAA AC 1500-5345-44J 3.2.5.2 a.). This first sign body housing (farthest from the adjacent Taxiway) will have thee circuit card box to the left on the “A” side of the sign. The sign side identification is important with regards to its sign panel legend. A grounding rod annd clamp should be installed at the end opposite the circuit card box in order to ground the sign housing. This grounding rod must not be connnected to the field counterpoise.

	DANGER:
DANGER	Lock out eleectrical power to the series loop that will pow er the sign at
	its source before attempting any electrical connections/spplices.

g.Make electrical connections to the series loop power using L-823 Primary Connector Kits. Attach the primary connectors to the apppropriate size L-830 Series Isolation Transformer ( See Tables 3-8). These primary connections (single pin plug or receptacle) should have Heat Shrink Kits applied over their connections to prevent disconnection and water from entering the cables. If twwo Series Isolation Transformers are required to be attached in series to obtain the correct wattage required for the sign, all primary lead connections sh ould have Heat Shrink Kits applied. Two Series Isollation Transformers connected in seriees together will require a Consolidating Harness (Croouse-Hinds Part Number 26811-27) at the transfformer secondary connectors (two pin receptacle) to series them together. Use electrical tape aroound the connections to prevent accidental disconnection. The Series

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