Before using flagging flags, you must know the type of staff they are most commonly used with. By having this information ready, you can determine which flag is appropriate for the project at hand.
Outdoor conditions vary from place to place. In order to adapt to various field conditions, flag manufacturers use durable materials to make flag poles. To improve visibility, the poles are usually 18, 21, 30, and 36 inches in length.
1. The steel wire
The wire of the flag
Due to its resistance to bending, wire rods can withstand difficult terrain and harsh field conditions. They are usually made of carbon-alloy steel, which makes them also durable and earthquake-resistant. In addition, they have better tensile strength than other types of rods. When a heavy flag is required on a construction site, using a marker flag with a wire rod is your best choice.
In contrast to other types of rods, wire rods can simply be inserted into the ground by hand. Some flags with plastic poles require special tools to be lowered into the ground. In addition to being durable, wire rods reduce the time and cost of marking.
2. The plastic
Plastic flag
Flags marked with plastic poles can provide you with extra security in hazardous construction areas. Because most wire rods are made of steel, they conduct electricity when they come into contact with a live wire. Compared with wire rods, plastic rods have better insulation properties.
Plastic canes are also safe to use around heavy equipment. If they are sucked up by the engine, they do not damage the machine in the same way as the wire rod. In addition, they are durable and resistant to corrosive elements.
3. Fiberglass
Fiberglass flag
Wire and plastic are not the best choices for flagpoles in extreme hot or cold weather. Drastic changes in temperature are likely to affect the structure of these materials. The fiberglass pole flag is the most suitable flag for use in extreme temperature conditions.
Because fiberglass rods are fire and weathering resistant, they can withstand any weather and temperature conditions. They are also durable and very durable. Like plastic poles, fiberglass poles are excellent electrical insulators, so they are perfectly safe to use around live lines.
Identify flag requirements
After determining the best flagpole to use on the construction site, you must check that the flags meet the requirements of the American Institute of Public Works (APWA). The non-profit organization promotes the exchange of knowledge among professionals in all fields of public engineering. It also developed standard color codes and marking guidelines for underground utilities.
The purpose of flagging is to inform excavators, other construction professionals and the community of the existence of underground utilities. They should attract the attention of people nearby and have colors that represent the type of utility they identify. Therefore, we suggest that the flags should be highly visible. Brightly colored flags are easy to see in poor light, in broad daylight, and from a distance.
In addition, the materials used to make up the flag and its flagpole should be durable. As mentioned earlier, the flagpole of a sign flag is usually made of wire, plastic or fiberglass. These materials enable the flagpole to withstand harsh outdoor conditions.
In addition, the fabric of the flag should also be durable and wearable. With this fabric, the flag can maintain its highly visible color in any field condition.
Another APWA recommendation for signs is that they be marked with the name, abbreviation or logo of the excavator company. They should also show the widths of public utility lines and other information. This recommendation applies to signs and flags with sufficient printing space.
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