Applies to materials, constructions, and testing of volts and less thermoplastic, crosslinked polyethylene, and crosslinked rubber insulated wires and cables which are used for the transmission and distribution of electrical energy for normal conditions of installation and service, either indoors, outdoors, aerial, underground, or submarine. Your Alert Profile lists the documents that will be monitored. If the document is revised or amended, you will be notified by email. You may delete a document from your Alert Profile at any time.
|Published (Last):||19 January 2015|
|PDF File Size:||15.21 Mb|
|ePub File Size:||1.56 Mb|
|Price:||Free* [*Free Regsitration Required]|
HD Power Transfer Capabil Consensus does not necessarily mean that there is unanimous agreement among every person participating in the development of this document.
ICEA standards and guideline publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings together persons who have an interest in the topic covered by this publication. While NEMA and ICEA administers 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.
NEMA and ICEA disclaims liability for personal injury, property, or other damages of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this document. NEMA and ICEA disclaims and makes no guaranty or warranty, expressed or implied, as to the accuracy or completeness of any information published herein, and disclaims and makes no warranty that the information in this document will fulfill any of your particular purposes or needs.
Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. 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.
Any certification or other statement of compliance with any health or safety-related information in this document shall not be attributable to NEMA and ICEA and is solely the responsibility of the certifier or maker of the statement.
Bookmark not defined. The user of this Standard is cautioned to observe any health or safety regulations and rules relative to the manufacture and use of cable made in conformity with this Standard.
Requests for interpretation of this Standard must be submitted in writing to: Insulated Cable Engineers Association, Inc. Suggestions for improvements gained in the use of this Standard will be welcomed by the Association.
Where a conflict exists between the requirements of Section 8, or other ICEA documents, and those of Sections 1 to 7 inclusive, the requirements of specific types shall apply. See Section 6 for test procedures not elsewhere referenced. Recommended minimum bending radii are given in Appendix F.
In classifying crosslinked insulations and jackets in these standards, the term "rubber" when used alone without further description shall mean synthetic rubber. Insulation thicknesses are designated in terms of cable insulation levels see 3. In classifying jackets and sheaths in these standards, the term "jacket" refers to a continuous nonmetallic covering and "sheath" to a continuous metallic covering.
Requirements of a referenced ASTM standard shall be determined in accordance with the procedure or method designated in the referenced ASTM standard unless otherwise specified in this standard. Frequency - Hertz. Normal operating voltage between phases or, in direct current, between conductors. Number of phases and conductors. Cable insulation level see 3.
Minimum temperature at which cable will be installed. Description of installation. In buildings. In underground ducts. Direct burial in ground. Descriptions other than the foregoing. Conditions of installation. Ambient temperature. Number of loaded cables in duct bank or conduit. Load factor. Method of bonding and grounding of sheaths. Wet or dry location. Other special conditions. Quantities and Description of Cable Total number of feet, including test lengths, and shipping reel lengths if specific lengths are required.
Type of cable. Describe as single conductor, two-conductor, three-conductor, etc. Rated circuit voltage, phase to phase. Type of conductor - copper or aluminum. Size of conductor — If conditions require other than standard stranding, a complete description should be given.
Type of insulation. Thickness of insulation. Type of outer covering. Maximum allowable overall diameter. When duct space is not limited, it is desirable not to restrict the overall diameter. Method of conductor identification. Special markings. Resistance will be determined in accordance with 2. Compliance with cross-sectional area is not required.
The following technical information on typical conductors may be found in Appendix G: a. Approximate diameters of individual wires in stranded conductors. Approximate conductor weights. Conductors shall be solid or stranded. The outer layer of an uncoated stranded copper conductor may be tin coated to obtain free stripping of an adjacent polymeric layer.
Flexible conductors are referenced in 2. For Flexible Aluminum Conductors consult manufacturer. The nominal cross sectional area within these tables is not a requirement. The dc resistance shall be determined in accordance with 2. Where the outer layer of an uncoated stranded copper conductor is tin coated, the direct current resistance of the resulting conductor shall not exceed the value specified for an uncoated conductor of the same size.
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. If measurements are made at a temperature other than 25? C, the measured value shall be converted to resistance at 25?
If verification is required for the direct-current resistance measurement made on an entire length of completed cable, a sample at least 1 foot 0. Volume resistivity in?? Aluminum Class B, C, D Class D Stranded includes compressed and compact conductors.
Resistivity 1. A volume resistivity of Increase in Resistance Due to Stranding 1. The value of K weight increment factor given in Table See Table for Use of Factors. The insulating material shall meet the dimensional, electrical and physical requirements specified in Section 3. Crosslinked polyethylene compound shall be either filled or unfilled.
The insulation shall be applied directly to the surface of the conductor or optional separator. While these cables are applicable to the great majority of cable installations which are on grounded systems, they may be used also on other systems for which the application of cables is acceptable provided the above clearing requirements are met in completely de-energizing the faulted section.
Cables in this category may be applied in situations where the clearing time requirements of the percent level category cannot be met, and yet there is adequate assurance that the faulted section will be de-energized in a time not exceeding 1 hour. Their use is recommended also for resonant grounded systems. Note: In common with other electrical equipment, the use of cables is not recommended on systems where the ratio of the zero to positive phase reactance of the system at the point of cable application lies between -1 and since excessively high voltages may be encountered in the case of ground faults.
The thicknesses of insulation given in Tables , , , and , shall apply to single-conductor cables and to the individual conductors of multiple-conductor cables, except nonsheathed submarine cables.
For nonsheathed submarine cables, see 3. The thickness of the insulation shall be not less than that given in Tables through for the various insulation types and voltage ratings. Multiply the phase to phase system voltage by 1. Use resulting voltage value to select the corresponding insulation thickness from Tables , , , and as applicable. Use the resulting voltage value to select the corresponding insulation thickness from Tables , , , or as applicable.
Each length of insulated conductor containing repairs or joints shall meet the electrical requirements of Tables and as applicable. The cable shall withstand, without failure, the test voltages given in Table through , as applicable.
The test voltages shall be based on the rated voltage of the cable and the size of the conductor and not on the apparent thickness of the insulation. When an insulated conductor is individually covered with a non-metallic jacket, the insulation resistance shall not be less than 60 percent of that required for the insulation based on the thickness of the insulation. The ac voltages are rms values. Insulation thicknesses are adequate for both percent and percent insulation levels.
Column A thicknesses shall apply to single-conductor power cables and multiple conductors without an overall jacket for general application which employ a sunlightresistant, carbon-black pigmented Insulation without further covering. Column B thicknesses apply to multi-conductor cables with an outer covering and to single-conductor cables with an outer covering. The Column B thicknesses are considered adequate for electrical purposes and may be specified for single-conductor cables employing sunlight-resistant, carbon black pigmented insulation without further covering.