ASTM D4566-98 pdf free download.Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable.
ASTM D4566-98 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 that product.
11. Conductor Continuity
11.1 Continuity of the conductors of a telecommunications wire and cable is a critical characteristic.
11.2 Unless otherwise specified or agreed upon, conductor ontinuity shall be verified using a de potential of 100 V or less Manual continuity checkers commonly take the form of a battery voltage source of 9 V, in series with a visible or audible indicator with hand-held test leads. Automatic test equipment also available to test properly terminated wire and cable, normally provides an indication (lights or printout) when continuity does not exist.
11.3 Prepare each end of the wire or cable for test. This usually involves stripping some insulation from each conductor at each end and separating the conductors at one or both ends.
When automatic test equipment is used, terminate the individual conductors at a test fixture (both ends are normally terminated since this automatic test is often performed in conjunction with other tests).When manual continuity check-ing is performed, it is usually suitable to connect all conductors to a common termination.
11.4 In succession, apply the voltage source to one end of each conductor.
11. 5 After defective conductors are repaired, continuity hecks must be repeated.
PS:ASTM D4566-98 was SUPERSEDED by ASTM D4566-14