TECHNICAL SPECIFICATIONS FOR 6381TQ

Single core, EPR insulated. HOFR sheathed. BS6007 – 6381TQ

Ambient temperature (deg c)
25
30
35
40
45
50
55
60
65
70
75
80
Rating factor
1.02
1.0
0.95
0.90
0.85
0.80
0.74
0.67
0.60
0.52
0.43
0.30

For ambient temperatures other than 30 deg c, the above factors should be applied

Ambient temperature: 30 deg c

Conductor operating temperature: 85 deg c

Note: ratings do not apply if a semi-enclosed fuse to BS3036 protects the cable

Current Carrying Capacity (Amperes)

Conductor cross sectional area (mm)
Enclosed in conduit etc in or on a wall
Clipped direct (horizontal or vertical)
On a perforated cable tray
Free air
  2 cables single phase a.c. or d.c.
(amp)		 3 or 4 cables
3 phase a.c.
(amp)		 2 cables single phase a.c. or d.c.
flat & touching
(amp)		 3 or 4 cables
3 phase a.c.
flat & touching or trefoil
(amp)		 2 cables single phase a.c. or d.c.
flat & touching
(amp)		 3 or 4 cables
flat & touching or trefoil
(amp)		 Single phase a.c. or d.c.
3 or 4 cables
3 phase a.c.
flat spaced horizontal or vertical
(amp)		 3 cables
trefoil
3 phase a.c.
(amp)
4.0 40 36 45 42 - - - -
6.0 52 46 59 54 - - - -
10.0 72 63 81 75 - - - -
16.0 96 85 108 100 - - - -
25.0 127 112 143 133 153 140 154 134
35.0 157 138 177 164 189 174 192 167
50.0 190 167 215 199 229 211 235 204
70.0 242 213 274 254 293 269 303 262
95.0 293 258 332 308 356 327 370 320
120.0 339 298 384 357 412 379 431 373
150.0 372 334 442 411 475 437 499 432
185.0 428 379 519 469 542 499 573 495
240.0 510 443 607 553 639 589 679 587
300.0 593 506 695 636 735 679 786 680
400.0 710 602 827 755 860 798 929 799
500.0 835 689 946 865 989 918 1081 919
630.0 975 791 1088 996 1143 1162 1263 1060