Proven to Deliver More Amps
3M™ ACCR can double the capacity of an existing line without exceeding existing towers' mechanical or clearance limits.
3M ACCR has proven its ability to perform reliably in a growing number of commercial installations, and over a wide range of tough environmental and operating conditions.
3M ACCR uses all aluminum-based materials - no steel, carbon, polymers or plastics - starting with a core of aluminum oxide fibers embedded in high-purity aluminum. This material has a strength similar to steel, but with less than half the weight and half the thermal expansion.
The all-aluminum-based core and aluminum zirconium outer strands combine to make a conductor that, compared to standard ACSR and ACSS, has:
- Consistent performance at high temperatures, 210° C continuous and 240° C emergency, up to 1,000 hours cumulative
- Less sag due to heat from high energy loads
- Higher strength to weight ratio, so you can maintain mechanical load, tension and clearances, even across long spans, and within your ice and wind loading specifications
- Higher modulus, so it stretches less and is less prone to bird caging during installation than conductors that use annealed aluminum
- Corrosion resistance without coatings or barriers between the core and the outer wire, required for steel or carbon core conductors
- Superior durability and performance, with life expectancy of 40 years or more, even when operated at high temperatures
- More amps on the same size conductor
3M ACCR significantly increases ampacity without increasing sag or mechanical loads
Assumes ACSS and 3M ACCR at 1,300 ft (396 meter) ruling span, initial tension: 6,557 lbs (2,974 kg) max. loading at 30 deg F (-1 deg C), no ice, 12 lbs (5.4 kg) wind; amp. conditions: 2f/s (0.6 m/s) wind speed, 35 deg C ambient, perpendicular wind direction, 0.5 emissivity and solar absorption.
