Measuring lines: calculation of cable parameters

Name: zetlab
Telephone: +7 495-739-39-19

Basic computational data for selection of cable type and power supply voltage
Admissible value of the measuring line cable volume resistivity (max), Ohm/km
Admissible cable class for the measuring line (max)
Measuring line cable conductor diameter (min), mm
Measuring line cable conductor cross-section (min), mm².
Required measuring line power supply level (not less than), W

Additional computational data
Total power of the transducers in the measuing line, W
Voltage at the far end of the measuring line, V
Current level in the electrical feed circuit of the measuring line, A
Overall circuits resistance (Upow+GND), Ohm
Resistance of feed circuit conductor, Ohm

AWG	Diameter, mm	Cross-section area, mm²	Resistance per unit length, Ohm/km	Weight per unit length kg/km
4	5.189	21.15	0.815	188
6	4.115	13.3	1.297	118.2
8	3.264	8.37	2.061	74.38
10	2.588	5.26	3.277	46.77
11	2.304	4.17	4.134	35.05
12	2.052	3.31	5.217	29.46
13	1.829	2.626	5.562	23.36
14	1.628	2.084	8.268	18.45
15	1.45	1.652	10.43	14.69
16	1.29	1.309	13.19	11.62
17	1.151	1.039	16.57	9.24
18	1.024	0.826	20.96	7.32
19	0.912	0.652	26.41	5.8
20	0.813	0.519	33.14	4.61
21	0.724	0.412	41.99	3.66
22	0.643	0.325	53.15	2.89
23	0.574	0.259	66.6	2.31
24	0.511	0.205	84.32	1.82
25	0.455	0.163	106.3	1.44
26	0.404	0.128	134.5	1.14
27	0.361	0.102	168.8	0.91
28	0.32	0.081	214.2	0.72
29	0.287	0.065	266.4	0.58
30	0.254	0.051	341.2	0.45
31	0.226	0.04	427	0.359
32	0.203	0.032	538	0.238
33	0.18	0.025	679	0.226
34	0.16	0.02	856	0.179
35	0.142	0.016	1086	0.142
36	0.127	0.013	1361	0.113

Configuration of measuring line requirements
Measuring line: power supply voltage, V
Total length of the measuring line, m
Measuring line: number of transducers, pcs

Parameters, that are not subject to change
ZET7xxx transducer power, W	0.5
Admissible decrease of power supply voltage at the end of measuring line	20%