FFXI Haven - #1.
Make certain that fuses, whether new or replacements, are of the proper type and rating. Never replace one type of fuse arbitrarily with a different type of fuse of the same physical size, or with a fuse having a different current rating, without specific engineering direction. Noncurrent-limiting fuses should not be used to replace current-limiting fuses. a.Spare fuse units and replaceable parts. Mark and store parts for re-energizing, after locating and correcting the situation that caused the fuse to blow. A potential hazard may exist, if the circuit is reenergized with the fault condition still present. (1)Marking of spare fuses and parts. Spare fuse units should be suitably marked, coded, or indexed to show the mounting, circuits, or equipment with which they are to be used; especially if several types and ratings are used in a given location. This minimizes the possibility of improper application. (2)Storing spare fuse units and parts. Store spare fuse units and replaceable parts of fuse units so they will not be damaged, and will be readily available when needed. b.Fuses subject to partial melting or deterioration. Fuses can be partially melted or damaged by fault currents of insufficient magnitude and melting time to cause complete melting. Observe the following precautions: (1)In two- or three-phase applications, replace fuses in, all phases, when fuses in one or more phases are blown. (2)In applications where fuses are used in series with other fuses or interrupting devices in the same phase, in such a manner that their melting or clearing curves, or both, cross one another, it is advisable to consider that the blowing of one makes the other unsuitable for continued service.
8-2 c.Replacing fuses on capacitor installations. 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 |
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