Terffy

For the sake of uniformity and clarity, APWA encourages all participating companies to use uniform color codes as specified in the ANSI Z535.1 standard. That way, anyone would immediately know what type of utility line was underground.   Red flags represent power lines, pipes, or lighting cables. They help to prevent excavators from coming into contact with these live lines, as this could create an electric shock hazard and loss of power in the area.   Yellow flags indicate pipelines containing gaseous materials such as natural gas, oil, steam and oil. When these pipes are accidentally hit, they can cause a gas leak or possibly an explosion.   Orange flags symbolize communication lines, alarm or signal lines, or fiber optic cables. These lines are responsible for Internet, telephone and television access in the area.   Blue flags symbolize drinking water, while purple flags represent mud, irrigation or reclaimed water. There are also green flags for sewers and draina...

  Plain Tape   Both highly visible and weather resistant,  flagging tape  is one of the most widely used products in construction and many other industries. It's bright colors often have a universal code in each industry creating a "visual shorthand" that saves time, money, and lives. Here are six of the most essential ways to use flagging tape:   ㆍSurveying. Flagging tape is used by surveyors to designate boundaries of land intended for a specific purpose. Because these markers often remain in place for months and even years while a project is in development, it is important that the color of the tape remains bright through the duration of the job. This is one of the hallmarks of flagging tape - it's color won't fade over time regardless of sun, wind, rain or other weather conditions. ㆍForestry. Flagging tape is widely used in forestry to mark trees for various purposes. One color can indicate trees designated for logging and another to mark an unhealthy tree o...