S800N RMS
www.rmscommunications.net
13
9. Reference Value Of Cable Speed
Number Insulating Medium
Wave Speed
(m/us)
1
Air Insulation
294
2
Coaxial Air Insulation
282
3
Foam Polythene
240~260
4
Polytetrafluoroethylene 213
5
Local Cable of
Polythene
190~202
6
Pulp 0.083UF/Mile
216
7
Pulp 0.073UF/Mile
264
8
Paper Full Of oil
140~168
9
Crossed Polythene
140~174
10
High Molecule Polymer 150~186
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