ANSI SCTE 15 pdf free download
ANSI SCTE 15 pdf free download.Specification for Trunk, Feeder and Distribution Coaxial Cable.
8.3. Dielectric Adhesion to Outer Conductor
A polymer adhesive coating may be used to bond the dielectric to the outer conductor. The adhesive coating shall be compatible with all cable components in contact and shall not degrade either electrical or mechanical properties of the product.
9. OUTER CONDUCTOR FLOODING COMPOUND
9.1. Material
Cables intended for below grade use shall have a flooding compound applied over the outer conductor to block moisture ingress and help prevent corrosion. The finished product shall meet requirements of ANSI/SCTE 69 2007 for corrosion resistance.
If a flooding compound is used for aerial cable, it shall meet the requirements of ANSI/SCTE 11 2012 for a non-flowing compound.
10. CABLE JACKET
10.1. Material
The outer jacket shall be polyethylene (PE). The jacket shall be free of pinholes. cracks and blisters. The PEjacket shall contain carbon black to ensure ultraviolet light stability (UV). The cable jacket shall meet the requirements of Table 3.
11. INTEGRAL MESSENGER
11.1. Material
An integral messenger (support) joined to the coaxial cable by an overall extruded PE jacket shall be galvanized steel. The steel wire shall meet requirements of ASTM A 641, Class 1, Hard Temper. The diameter of the wire is dependent upon the application and shall be agreed upon by the user.
11.2. Joints
Factory joints in the messenger shall not be allowed in a shipping length of cable.
12. ARMOR
12.1. Material
The armor shall be any of the following materials:
1. A steel tape 0.0 10 in. (0.25 mm) thick, conforming to SAE/AISI 1010.
2. A steel tape 0.006 in. (0.15 mm) thick.
3. A copper clad stainless steel tape 0.006 in. (0.15 mm) thick per ASTM B 694.
4. A steel tape with an adhesive coating on one side and corrosion protection plating on the other side, the tape thickness without platings or adhesives shall be 0.008 in. (0.20 mm).
The armor is applied to protect the finished product from mechanical and rodent damage.
12.2. Armor Construction
The armor tape can be applied either as a smooth helical tape with no overlap or corrugated and longitudinally applied. If an adhesive coated tape is used the armor must bond at the overlap.
12.3. Outer Jacket
An outer PE jacket shall be extruded over the armor and meet requirements of section 10.1, Table 5, Table 4 and Section Jacket Eccentricity 10.4 Jacket Eccentricity.
13. FINISHED PRODUCT MECHANICAL TESTS
13.1. PE Jacket Longitudinal Shrinkage
There shall be no more than 0.375 in. (9.53 mm) shrinkage along a six-inch length of finished product. The test shall comply with ANSIJSCTE 88 2012.
13.2. Dielectric Shrinkback
Dielectric shrinkback on the conductor shall be no more than 0.250 inch (6.35 mm) from both ends. All change in length from the time the specimens are cut shall be included. Samples shall be placed in an air circulating oven for four hours at 239 ± 2°F (115 ± 1°C). Test shall be according to ASTM D 4565.
13.4. Air Leakage Test
The foam dielectric shall prohibit the flow of 5 psi of air for a minimum of 15 seconds in a 12-inch
(304.80 mm) sample. Solid PE discs shall prohibit the flow of 40 psi of air for 60 seconds in a 6-inch
(152.40 mm) sample. The test shall be performed in accordance with ANSI/SCTE 13 2011.
13.5. Thermal Oxidative Stability
To ensure the desired life expectancy of the dielectric insulation, determine its Oxidative Induction Time (OTT) before and after aging by the following test method. Insulation shall be tested by measuring OIT according to SCTE IPS TP-l 19. The test utilizes insulation removed from the completed cable. The test utilizes insulation removed from the completed cable and tested at 180°C ± 0.3C°. Care should be taken not to include any adhesive or precoat on the dielectric specimen. Requirements for OTT — Initial: 20 minutes minimum. after aging: 70 percent of initial value.ANSI SCTE 15 pdf download.
