FFXI Haven - #1.
c. Compound set methods. There are a number of compound set methods. Engineering evaluation should select the appropriate method. (1)Compound. The simplest method requires a compound (mixed in a completely self-contained mixing unit) which fills a hole slightly larger than the pole diameter. It is suitable also for straightening poles. (2)Compound and casing. The decaying region is first treated with a liquid fumigant. A split-metal casing is driven below grade by rotary-driven equipment. The casing is filled with an epoxy-aggregate for stabilization and extra strength. The filler may also contain an approved preservative additive that migrates to the outside surfaces of the pole under a time-delay release action. (3) Compound, rebars, and collar. This method requires a 2-foot (0.6-meter) deep trench to be excavated around the pole and several 4-foot (1.2-meter) long rebars to be stapled about the pole. An inert 3 to 4 foot (0.9 to 1.2 meter) collar descends to about 2 feet (0.6 meters) below the ground line and is filled by funnel with hand or electric mixed epoxy-resin compound. Periodic tamping is needed to ensure proper compound setting. The trench is then backfilled after the compound has cured. Section V - CROSSARMS, BRACES, AND PLATFORMS 4-19. Pole crossarms. All facility crossarms are fully treated and are usually of Douglas fir or yellow pine. The length and cross section of an arm is determined by the brace and strength requirements. Easy Access To All Pages 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 |
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