M A Y 2 0 1 4
|
2 3
NEWS
terials provides distinct advantages compared to alternative
High Temperature Low Sag (HTLS) technology and conven-
tional conductors." The C7 Overhead Conductor comes in a
variety of constructions, using Al-Zr and O-Temper alumi-
num. One standard confguration comprises a core of seven
(or more, depending on cable diameter) 3.2-mm/0.13-inch
diameter strands of aerospace-grade carbon fber, each pul-
truded with a matrix of Fortron PPS (polyphenylene sulfde)
from Celanese. The core is isolated from direct contact with
the cable's aluminum conductor strands by an overwrap of
polyetheretherketone (PEEK) to protect the aluminum from
galvanic corrosion and to prevent abrasion of the core. The
bundled strands, overwrapped by Southwire with an alumi-
num conductor, provide a redundancy of structural support
in high-load conditions. In addition, Lancaster notes that the
carbon fber core operates at generally lower temperatures,
which maximizes energy throughput and minimizes capacity
loss. Nonetheless, the carbon fber/thermoplastic strands re-
portedly can operate at high temperatures (180°C to 225°C),
without line damage.
That said, Lancaster points out that the success of C
7
as a
replacement cable product rides on whether or not cable in-
stallers can use the same tools and equipment they employ
with metal-cored cables. "Install and repair strategies had to
be the same," he says, "so that our customers can seamlessly
integrate it into their work environment."
(continued from p. 21)
The Explosion Proof Bonder--
Redefined
w w w . W i c h i T e c h . c o m
C a l l u s f o r a p e r s o n a l d e m o :
( 8 0 0 ) 7 7 6 - 4 2 7 7
❖
4 1 0 / 2 4 4 - 1 9 6 6
B a l t i m o r e , M a r y l a n d 2 1 2 0 1 U S A
Works
on
400 Hz
Meets Class 1, Division 1 MIL-STD-810F/NEC
Weber Manufacturing Technologies Inc
Tel 705.526.7896 • Midland, ON
www.webermfg.ca
Precision Tooling and CNC Machining
for the Composites Industry
Invar
Steel
NVD Nickel
Precision
0514HPC New&Briefs-OK.indd; 23 4/22/2014 2:56:50 PM