Single- or multiconductor – V – 90ºC – ICEA S Halogen-free (LSZH- HFFR). MH. Applications. Recommended for use in highly populated enclosed. ANSI/NEMA WC ICEA S Power Cables Rated Volts or Less for the Distribution of Electrical Energy Published by National. ANSINEMAWC70ICEANonshielded Power Cables Rated Volts or Less for the Distribution of Electrical Energy-Applies to materials, constructions.
|Published (Last):||6 July 2013|
|PDF File Size:||7.17 Mb|
|ePub File Size:||18.55 Mb|
|Price:||Free* [*Free Regsitration Required]|
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. The height H of the segment is the thickness along the d-95-658 of the specimen.
The nominal cross sectional area within these tables is not a requirement. In the case of wire and cable smaller than s-95-58 6 AWG having a specified insulation thickness less than or equal to 90 mils 2.
Where an assembly of twisted single conductor cables is subjected to the direct current spark test, the individual conductors shall be similarly tested prior to assembly.
Vertical riser, borehole, and shaft cable for end suspension. Wire band servings in accordance with 4. C, the measured value shall be converted to resistance at 25?
Failure of either of the additional specimens shall indicate failure of the sample to conform to this standard. The respective averages shall be calculated from the five tensile strength and elongation values obtained for the conditioned samples. Their use is recommended also for resonant grounded systems.
Band servings in accordance with ieca. When there are questions regarding compliance, measurements shall be ieca with an optical measuring device or with calipers with a resolution of 0.
The pitch ratio is taken as the quotient resulting from dividing the length of lay of the armor wires by the pitch diameter of the armor wires. For zinc coated steel tape, the specified nominal thickness and tolerance shall apply to the stripped icae metal. A means of measuring voltage between the electrode and ground.
Power Cables Rated 2,000 V or Less for the Distribution of Electrical Energy
Suspended from aerial messenger. The corrugations shall be at right angles to the axis of the cable and shall coincide exactly at the overlap.
The test specimens shall be molded from material taken from the completed cable. Metallic sheath, lead or aluminum. Simultaneous aging of different compounds should be avoided.
For cables or conditions of service where mechanical stresses govern, such as in submarine cables or long vertical risers, the small conductor sizes may not be strong enough. Determination of unaged properties: The lead may be stripped from the entire length of the cable and the cable re-sheathed. The conductor s in the cable shall be tested to assure continuity when grounded at one or both ends. Indicates that the test for the applicable property does not apply to material. Division II See 4.
When a sample is taken from a multiple conductor cable, the resistance shall comply with the appropriate maximum resistance value specified for a single conductor cable. Polyvinyl chloride meeting the requirements given in 4.
Power Cables Rated 2, V or Less for the Distribution of Electrical Energy – NEMA
Specimens for tests on jacket compounds shall be taken from the sample by cutting parallel to the axis of the wire or cable. The jacket shall meet the requirements stated therein and those given in Table and Information and other standards on the topic covered by this publication may be available from other sources, which the user may wish to consult for additional views or information not covered by this publication. We have no amendments or corrections for this standard.
The cable shall withstand, without failure, the test voltages given in Table throughas applicable. Approximate diameters of individual wires in stranded conductors.
See Section 6 for method of measuring metal tape thickness. When flat steel tape, interlocked tape, or round wire armor will remain unjacketed and the cable is intended for use in below grade or potentially wet environments, cores having beddings of tapes or jute yarn shall be run s-95-6558 a hot asphalt compound or equivalent saturant.
The following technical information on typical conductors may be found in Appendix G: The calculation for tensile strength shall be based on the cross-sectional area of the specimen obtained before immersion ices oil. Increase in s-95-6658, max. Number of phases and conductors. This advantage is obtained only jcea the shield is grounded.
Some migration is known to occur. For single conductor cables for installation in underground ducts or direct earth burial and for all submarine cables, add 15 mils to the insulation thicknesses when such cables do not have a thermoplastic jacket or metallic sheath over the assembly. 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 This requirement may be reduced to 1 hour for insulation Classes X and T.
The ac voltages are rms values.