Text on the drawing
2.0 [51] FOR SBB 4 [109] FOR PBB 0.25 [6] 1.0 [25] 1.12 [28] 1.06 [27] 1.06 [27] 1.12 [28] 1.12 [28] 1.0 [25] 2.757 [70] 2.757 [70] 1.5 [38] 0.62 [16] 0.62 [16] 24 [610] FRONT VIEW 1.12 [28] (x3) INSULATION MOUNTING HOLES UNITS: INCHES [MM] SIZING OF TELECOM BONDING BACKBONE TBB LENGTH LINEAR FT <13 14-20 21-26 27-33 34-41 INSULATOR POST STANDOFF BRACKET 2" MINIMUM SIDE VIEW 42-52 53-66 67-84 6 4 3 2 1 1/0 2/0 3/0 4.2790 [109] 5.8 [147] 6.75 [171] MOUNT 4" MINIMUM TWO HOLE COMPRESSION LUG CONNECTOR WITH INSPECTION WINDOW 1.5000 [38] 2" MINIMUM END VIEW LABELING: Ø0.44 [Ø11] (x3) Ø0.44 [Ø11] (12 PLCS) Ø0.31 [Ø8] (48 PLCS) TBB SIZE (AWG) NO RADIUS BENDS >90° STRUCTURAL STEEL 12.3 TO EES VIA SHORTEST PATH DO NOT ROUTE ENTRANCE BEHIND BAR DUCTS ACEG PBB 12.2 12.4 A. "PBB" ON BUSBAR FOR MAIN TR/"SBB" FOR SECONDARY TRS B. EACH TBC MUST BE GREEN OR MARKED WITH GREEN C. EACH CONDUCTOR MUST BE LABELED WITH: BEVELED ENTRY DIE AND COLOR CODE INSPECTION WINDOW ELECTRO-TIN PLATED TBB 12.6 85-105 4/0 106-125 250kcmil 126-150 300kcmil 151-175 350kcmil 176-250 500kcmil 251-300 600kcmil >301 750kcmil IF THIS CONNECTOR OR CABLE IS LOOSE OR MUST BE REMOVED, PLEASE CALL THE BUILDING TELECOMMUNICATIONS MANAGER. N.T.S. 1 PBB/SBB BONDING DETAIL
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