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Warwick Electrical Product Guide

Tcca Ia Cable Spacing Factors To determine the conduit size needed, multiply the quantities of each size of cable by the appropriate factor, and compare the total with the conduit figures shown. Example: What size of conduit is required for 6 No. 4mm2 cables in a 3 metre run with no bends? 6 x 58 = 348. The nearest size of conduit with a factor greater than 348 is 20mm. Conduit Factors Cable Factors Single core PVC insulated cables in straight runs of conduit not exceeding 3m in length Type Conductor Cross-Sectional Area (mm) Factor Conduit Diameter (mm) Capacity Factor 1.0 22 16 290 1.5 27Solid 20 460 2.5 39 25 800 1.5 31 32 1400 2.5 43 Stranded 4.0 58 6.0 88 10.0 146 Cable Factors (Exceeding 3m in length) Single core PVC insulated cables in straight runs of conduit exceeding 3m in length or in runs of any length incorporating bends or sets. Type of Conductor Conductor Cross-Sectional Area (mm) Factor 1.0 16 1.5 22 2.5 30 Solid or Stranded 4.0 43 6.0 58 10.0 105 Conduit Capacity Chart (Exceeding 3m in length) Conductor Diameter (mm) Length of Run 16 20 25 32 16 20 25 32 16 20 25 32 16 20 25 32 16 20 25 32 (m) Straight One bend Two bends Three bends Four bends 1.0 - - - - 188 303 543 947 177 286 514 900 158 256 463 818 130 213 388 692 1.5 - - - - 182 294 528 923 167 270 487 857 143 233 422 750 111 182 333 600 2.0 - - - - 177 286 514 900 158 256 463 818 130 213 388 692 97 159 292 529 2.5 - - - - 171 278 500 878 150 244 442 783 120 196 358 643 86 141 260 474 3.0 - - - - 167 270 487 857 143 233 422 750 111 182 333 600 - - - - 3.5 179 290 521 911 162 263 475 837 136 222 404 720 103 169 311 563 - - - - 4.0 177 286 514 900 158 256 463 818 130 213 388 692 97 159 292 529 - - - - 4.5 174 282 507 889 154 250 452 800 125 204 373 667 91 149 275 500 - - - - 5.0 171 278 500 878 150 244 442 783 120 196 358 643 86 141 260 474 - - - - 6.0 167 270 487 857 143 233 422 750 111 182 333 600 - - - - - - - - 7.0 162 263 475 837 136 222 404 720 103 169 311 563 - - - - - - - - 8.0 158 256 463 818 130 213 388 692 97 159 292 529 - - - - - - - - 9.0 154 250 452 800 125 204 373 667 91 149 275 500 - - - - - - - - 10.0 150 244 442 783 120 196 385 643 86 141 260 474 - - - - - - - - No liability can be accepted for the data below which is given for guidance only.  !  !      # "    245


Warwick Electrical Product Guide
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