VES Compas Fire Alarm Control Panel Installation Manual page 176

Length Resistance
(in feet)
900 2.2725
1000 2.525
1100 2.7775
1200 3.03
1300 3.2825
1400 3.535
1500 3.7875
1600 4.04
1700 4.2925
1800 4.545
1900 4.7975
2000 5.05
2100 5.3025
2200 5.555
2300 5.8075
2400 6.06
2500 6.3125
2600 6.565
2700 6.8175
2800 7.07
2900 7.3225
3000 7.575
3100 7.8275
3200 8.08
3300 8.3325
3400 8.585
3500 8.8375
3600 9.09
3700 9.3425
3800 9.595
3900 9.8475
4000 10.1
4100 10.3525
VES Fire Detection Systems
Compas Fire Alarm Control Panel Installation Manual
Ω
@ 0.1 A
0.22725
0.2525
0.27775
0.303
0.32825
0.3535
0.37875
0.404
0.42925
0.4545
0.47975
0.505
0.53025
0.5555
0.58075
0.606
0.63125
0.6565
0.68175
0.707
0.73225
0.7575
0.78275
0.808
0.83325
0.8585
0.88375
0.909
0.93425
0.9595
0.98475
1.01
1.03525
Voltage Drop per Conductor
@ 0.2 A @ 0.3 A
0.4545 0.68175
0.505 0.7575
0.5555 0.83325
0.606 0.909
0.6565 0.98475
0.707 1.0605
0.7575 1.13625
0.808 1.212
0.8585 1.28775
0.909 1.3635
0.9595 1.43925
1.01 1.515
1.0605 1.59075
1.111 1.6665
1.1615 1.74225
1.212 1.818
1.2625 1.89375
1.313 1.9695
1.3635 2.04525
1.414 2.121
1.4645 2.19675
1.515 2.2725
1.5655 2.34825
1.616 2.424
1.6665 2.49975
1.717 2.5755
1.7675 2.65125
1.818 2.727
1.8685 2.80275
1.919 2.8785
1.9695 2.95425
2.02 3.03
2.0705 3.10575
Version 4.00 | January 2024 | MAN-1431COM
Appendix C: Calculations
@ 0.4 A
0.909
1.01
1.111
1.212
1.313
1.414
1.515
1.616
1.717
1.818
1.919
2.02
2.121
2.222
2.323
2.424
2.525
2.626
2.727
2.828
2.929
3.03
3.131
3.232
3.333
3.434
3.535
3.636
3.737
3.838
3.939
4.04
4.141
Page 176