PowrServ® OH Secondary Cable Neutral-Supported Type RTS (US)
Reverse Twist Secondary (RTS) cable consists of two aluminum conductors, insulated with extruded lead-free Cross-linked Polyethylene (XLPE), and reverse-twisted around an aluminum alloy or ACSR conductor, which serves as the supporting neutral. RTS cable meets the requirements of ANSI/ICEA S-76-474. Conductors meet ASTM B231, B232 and B399 as applicable. Insulated
Product Construction
Conductors: The all-aluminum stranded conductors are Class A, Class B, or SIW compressed 1350-H19 aluminum.
Insulation: The insulation is black extruded lead-free Cross-linked Polyethylene (XLPE).
Bare Neutral: The all-aluminum alloy stranded conductors are Class AA or Class A 6201-T81 aluminum alloy (AAAC). The aluminum conductor, steel-reinforced (ACSR), is Class AA. The outer layer is on the right-hand side.
Lashing Wire: Aluminum 1350 wire, either flat wire approximately #10 AWG with beveled edges or #10 AWG wire covered with high-density polyethylene.
Features and Benefits
The insulated conductors of RTS cables are resistant to weathering, sunlight, abrasion, tearing, cutting and chemicals. Conventional equipment can be used to string RTS. This cable is rated for 600 volts and has a maximum conductor operating temperature of 90°C with extruded cross-linked polyethylene insulation.
Applications
A reverse twist secondary cable is used as a secondary overhead distribution cable for 3-wire single-phase power. The alternating lay direction (left-right-left) provides additional cable length for mid-span taps.
Options
- Aluminum 1350-H16 or H26 (¾ Hard) stranded conductor
- Copper conductors
- High-molecular-weight Polyethylene (PE) insulation, 75˚C rating
- High-Density Polyethylene (HDPE) insulation, 75˚C rating