Electrical tests, properly interpreted, provide information with regard to the electrical properties of the insulation. The electrical test values give an indication as to how the insulation will perform under conditions similar to those observed in the tests. Electrical tests may provide data for research and development, engineering design, quality control, and acceptance or rejection under specifications.
1.1 These test methods cover procedures for electrical testing of thermoplastic insulations and jackets used on telecommunications wire and cable and for the testing of electrical characteristics of completed products. To determine the procedure to be used on the particular insulation or jacket compound, or on the end product, reference should be made to the specification for the product.
1.2 The test methods appear in the following sections of this standard:
| Test Method | Sections |
|---|---|
| Electrical Tests of Insulation | 4-8 |
| DC proof test | 8 |
| Insulation defect or fault rate | 7 |
| Spark test | 6 |
| Electrical Tests of Completed Wire and Cable | 9-51 |
| Attenuation | 24 |
| Attenuation, effects due to aging | 31 |
| Attenuation, effects due to elevated temperature | 29 |
| Attenuation, effects due to humidity | 30 |
| Attenuation to crosstalk ratio | 28 |
| Attenuation to crosstalk ratio | 26 |
| Capacitance deviation | 19 |
| Capacitance difference | 20 |
| Capacitance unbalance, Pair-to-ground (CUPG) | 22 |
| Capacitance unbalance, Pair-to-pan="top"> Fault rate test (air core only) | 33 |
| Insulation resistance (IR) | 32 |
| Jacket voltage breakdown rating test | 36 |
| Mutual capacitance (CM) | 18 |
| Mutual conductance | 16 |
| Phase Constant | 44 |
| Phase Delay | 45 |
| Phase Velocity | 46 |
| Resistance of other metallic cable elements | 14 |
| Shorts test (continuity between wires of a pair) | 34 |
| Structural Return Loss and Return Loss |
ASTM D4566-08e1 history
Copyright ©2024 All Rights Reserved |