ICEA S 108 720 PDF

ICEA S applies to materials, constructions, and testing of crosslinked polyethylene (XLPE) and ethylene propylene rubber (EPR). Find the most up-to-date version of ICEA S at Engineering ANSI / ICEA S Standard for extruded insulation power cables rated above 46 through. kV. ISO Standards. Our systems comply with the.

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The separator tape, if present, shall not be included as part of the jacket thickness.

To help avoid misunderstandings and possible misapplication of the cable, the purchaser should also furnish the following information: The wafer s shall then be removed from the solvent and examined for shieldlinsulation interface continuity with a minimum power magnification. Samples shall be cut from the insulation with a cross-section not greater than 0.

Suggestions for iccea gained in the use of this Standard will be welcomed by the Association. Protrusion ucea be measured as shown in Figure The allowable operating temperatures of the conductor shield shall be equal to or greater than those of the insulation. Nominal phase to phase voltage. The dissipation factor shall meet the requirements of Part 4. The temperature shall be achieved by circulating current in the conductor. The sample, at room temperature, shall withstand an ac voltage of 2.

Ail diameter measurements shall be made on cable samples that contain the conductor. Nonuniformdistribution of the electric field causes increased radial stress in portions of the insulation Figure D-2a.

ICEA S-108-720

The samples shall be taken near the beginning, near the middle and near the end of each extruder run. Tests defined in Part 9 of this standard with specific test frequency.

To insure that the thermal insulation and the plastic pipe yield a similar temperature gradient, it may be necessary to set up a “dummy” length of cable using a pipe and thermal insulation material to compare the thermal characteristics of each.

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The width of the corrugated tape shield shall be such that after corrugation the edges shall overlap by not less than 0. See AppendM H andlor contadthe manufadursr for further information.

Specimens can be ground or cut to meet thickness requirements. Agglomerates and Contaminants as Applicable The sample shall be kept clean and shall be handled carefully to prevent surface damage and contamination.

I Winding of the Test Specimen on Mandrels The following technical infomation on typical conductors may be found in Appendix G: A total of three bending cycles three forward bends and three reverse bends are required. After the 2 hour period, the samples shall be removed from the oven and allowed to cool for 2 hours at room temperature.

Specimen length, gauge mark distance, and jaw speed shall be reported with results. Other Factors The metallic shield designs mentioned are often used in combination with each other. Alkanes are named according to the number of carbon atoms in the chain. Method of cable identification.

Joints in the tape shall be made electrically continuous by welding, soldering, or brazing. The outer layer of a stranded copper conductor may be tin coated to assist with free stripping of the adjacent polymeric layer.

Butted tapes shall not iicea permitted. The highest conductor temperature permissible for any part of the cable under normal operating current load. A qualified semiconducting conductor shield can be used as an insulation shield without requalification. The tests are divided into three categories. The sample shall be taken from the inner 25 percent of the insulation. Ixea aluminum sheath shall be tightly formed around the core of the cable.

Electrical Tests include a Hot Impulse Test All ac tests shall be conducted at room temperature and at power frequency Hz. Ambient air temperature andor ambient ground temperature at burial depth. The respective averages shall be calculated from the five tensile strength and elongation values obtained for the conditioned samples. The cable sample shall have a minimum active length is 30 feet 9.

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Jacket irregularity inspection test shall be performed in accordance with 7. The test area grips, chamber, extensometer shall be conditioned at the test temperature for a minimum of 3 hours to ensure stability of the test environment.

While these cables are applicable to installations which are on grounded systems, they may also be used on other cable systems, provided the above deanng requirements are met in completely de-energizing the faulted section. If the insulation shield dicsolves or cracks such that it does not maintain a continuous ring, the cable lot shall either be rejected by the manufacturer or a sample of insulation shield from the same lot shall be subjected to the requirements of 9.

ICEA S – PDF Free Download

Binder tapes shall be applied substantially free of indents, icae, tears or whkles. When the metal sheath is formed by applying a seamless sheath or tube the metal shall be aluminum or an aluminum alloy having not less than The insulation of the sample examined shall be free from: The cotangent of the dielectric phase angle of a dielectric material or the tangent of the dielectric loss angle.

The strands shall d individually separated and visually examined. Units in these standards are generally expressed in the Imperial system. Jacket thickness shall be as stated in 7.

Ethylene propylene rubber insulation is suitable for 270 or dry locations at voltages above 46 up to and including kV between phases. L Electrical The jacket sewes a very important electrical function in bonded cable systems such as single-point bonding and cross bonding.

ASTM B for 19 wire combination unilay-stranded copper conductors.