In urban areas, stray voltage issues have become a significant concern for utilities. On January 16, 2004, Jodie S. Lane was electrocuted after stepping on a metal manhole cover, while walking her two dogs in New York City.[13]
Cast Iron Manhole Covers
Manhole covers are made with different materials such as cast iron, ductile iron, concrete and in some cases, with glass reinforced plastic (GRP). Cast iron manhole covers are preferred because they are strong, cheap and easy to cast. A heavy manhole cover is essential to ensure that the cover does not get dislodged by pressure from gasses released in the drains and also from sucking pressure of fast moving vehicles. Unpainted cast iron inherently possesses rust resisting properties that make it an excellent choice to ensure best performance and long service life. Though other materials for manhole covers are available, the strength of cast iron cannot be overstated when it comes to resisting earth and pavement pressures.
1. Security and Protection Commercial bike racks are designed to securely hold multiple bikes, minimizing the risk of theft. Most racks are built with sturdy materials that withstand various weather conditions while providing ample support for bikes.
After installing a galvanized pipe repair clamp, it's important to monitor the area for any signs of recurring leaks. Ensure that the clamp is properly tightened and check regularly for corrosion or wear. If the problem persists or worsens, more extensive plumbing repairs may be needed.