FFXI Haven - #1.
When inspections reveal heart rot; splits; lightning, insect, bird, or vehicle damage; or other apparent weaknesses, these conditions should be reported so that the adequacy of the pole to sustain its loads may be evaluated by engineering personnel. Whenever the condition requires backfilling to any degree more than that for spot inspection, provide groundline treatment as covered in section VI. Test wood pole stubs, as required for the wood poles they help support. Steel stubs should be inspected to see that the installation is in good condition and holding properly. a.Replacement. If the diameter of the pole has decreased more than about 15 percent due to damage or decay at the ground line, or if the diameter of the heart-rotted section as determined by boring is more than about 30 percent of the total diameter of the pole, it should be scheduled for replacement as soon as possible. b.Reinforcement. In many cases, a pole will decay at the ground line but the wood above will be 4-9
TM 5-684/NAVFAC MO-200/AFJMAN 32-1082 good. In such cases, especially if the pole contains several lines or equipment, pole reinforcing may be a more economical (and fully satisfactory) solution than providing a new pole. The pole must be sound from about 15 inches (400 millimeters) above the ground line to the pole top, and preservative should be applied under pressure to prevent spread of the groundline decay into healthy wood. c. 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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