Basic Electrical Installation Work

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7 Conduit Cable Factors.4 (32mm factor) For 50mm diameter use 2. Adapted from the IEE Site Guide Kind Permission the Institution Electrical Engineers Cable factors for runs incorporating bends and long straight runs Length of run (m) Conduit diameter (mm) 16 32 Straight One bend Two bends Three bends 1 Covered 188 303 543 947 177 286 514 900 158 256 463 818 1.Table 14.5 174 282 507 889 154 250 452 800 125 204 373 667 149 275 500 5 171 278 500 878 150 244 442 783 120 196 358 643 141 260 474 6 167 270 487 857 143 233 422 750 111 182 333 600 7 162 263 475 837 136 222 404 720 103 169 311 563 8 158 256 463 818 130 213 388 692 159 292 529 9 154 250 452 800 125 204 373 667 149 275 500 10 150 244 442 783 120 196 358 643 141 260 474 Additional factors: For 38mm diameter use 1.5 179 290 521 911 162 263 475 837 136 222 404 720 103 169 311 563 4 177 286 514 900 158 256 463 818 130 213 388 692 159 292 529 4.5 182 294 528 923 167 270 487 857 143 233 422 750 2 Tables 177 286 514 900 158 256 463 818 130 213 388 692 2.5 171 278 500 878 150 244 442 783 120 196 358 643 3 and 167 270 487 857 143 233 422 750 111 182 333 600 3.2 (32mm factor) 310 .6 (32mm factor) For 63mm diameter use 4

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