Cable Calculation Software https://spearhead.com.au/products/powerpac Spearhead Software is a leading Australian company specializing in electrical estimating, tendering, and cable calculation solutions for the construction and contracting industry. Founded in 1987 and based in Western Australia, the company has built a strong reputation for delivering innovative and reliable software tools. Its flagship product, PowerPac, is widely used for accurate cable sizing and electrical calculations based on Australian standards. With a focus on improving productivity and reducing errors, Spearhead Software continues to support engineers, contractors, and designers with advanced, user-friendly solutions tailored to industry needs.