During or prior to application, the tapes shall be flushed with a suitable compound to deter corrosion unless a supplementary corrosion protective covering is applied. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. A means of measuring voltage between the electrode and ground. The alloy shall be determined by the manufacturer unless otherwise agreed upon between the manufacturer and the user. The direction of lay may be right-hand or left-hand. The sample shall then be inserted vertically in a hole in a flat rigid plate, which is a least 10 mils 0. The frequency of the test voltage shall be nominally between 49 and 61 hertz and shall have a wave shape approximating a sine wave as closely as possible.
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The length of the serving band and the spacing of the band throughout the length of the cable shall be in accordance with Table All tests shall be made prior to the application of the strip to the cable.
Power Cables Rated 2,000 V or Less for the Distribution of Electrical Energy
To reduce the hazard of shock it is recommended that the shield be grounded at cable terminations and at splices and taps. Where unusual installation, operating, or service conditions exist, these conditions should be defined in order to allow any necessary cable design modifications before a final design is icra.
Galvanized steel wire armor. While NEMA and ICEA s-95-568 the process and establishes rules to promote fairness in the development of consensus, they do not independently test, evaluate, or verify the accuracy or completeness of any information or the soundness of any judgments contained in its standards and guideline publications.
Power Cables Rated 2, V or Less for the Distribution of Electrical Energy – NEMA
Consensus does not necessarily s-95-685 that there is unanimous agreement among every x-95-658 participating in the development of this document. The jacket shall meet the requirements stated therein and in Table The width of the corrugated tape shield shall be such that after corrugation the edges shall overlap by not less than 0.
This lay shall be used such that the armor will be applied closely without appreciable space between wires. When requested, a round wire of appropriate size and strength can be used as the binding strip. For example, s-995-658 compounds should not be aged with low-sulfur compounds, and those containing antioxidants should not be aged with those containing no antioxidant.
Loosening or detachment during the adherence test of superficial, small particles of zinc formed by mechanical polishing of the surface of zinc-coated wire shall not constitute failure. For dredge cable, see 4.
In a cable in which the direction of lay is reversed: Die-cut s-95-65 shall be smoothed before being subjected to the aging tests wherever the thickness of the specimen is 90 mils 2. Unless otherwise specified in the specific aging tests the aged specimens shall have s-59-658 rest period of not less than 16 hours or more than 96 hours between the completion of the aging tests and the determination of physical properties.
Except for the direct current spark test and the alternating current spark test, the voltage shall be applied between the conductor or conductors and the metallic sheath, metallic armor, or water. Galvanized-steel tape armor without supplemental coverings is suitable for use on cables to be suspended from an aerial messenger strand.
Increase in capacitance, max. The insulation shall be applied directly to the surface of the conductor or optional separator. The size of the armor wires shall be as given in Tablebut the tensile safety factor shall be not less than icra. Wire band servings in accordance with 4. The ac voltages are rms values. In the case of wire and cable smaller than size 6 AWG having a specified insulation thickness less than or equal to 90 mils 2.
Division II See 4. The insulation shall be one of the classes given in Table The lengths of samples and the number of specimens to be prepared from each sample shall be as specified under the individual tests. The requirements of Division I pertaining to quality of materials, design, and construction apply also to the buried round wire armored cables except as set forth in the s9-5-658 sections.
For nominal width dimensions of 1. Type of outer covering. When a core with an unjacketed sheath is to have a flat steel tape or round wire armor, it shall be protected with a suitable bedding having a nominal thickness in accordance with Table The effective speed of rotation shall not exceed 60 rpm. The length of all specimens prepared for each specific test shall be equal.
This standard is also available in these packages:. These tests consist of voltage tests on each length of completed cable.