Which equipment has a positive electrical charge applied to them?

The equipment that has a positive electrical charge applied to it is the Electrostatic Precipitator Collector Electrodes. In an electrostatic precipitator, the collector electrodes are designed to attract and capture particles from a gas stream, such as smoke or dust. This process utilizes high-voltage electrical charges to create an electric field that ionizes the particles, allowing them to be collected effectively.

By applying a positive charge to the collector electrodes, negatively charged particles are attracted to them, leading to efficient particle removal from the gas stream. This principle is crucial for maintaining air quality and reducing emissions from industrial processes.

In contrast, fan blades typically do not involve electrical charging in their operation; they are mechanical devices that move air. Ionization chambers can generate electrical charges for specific measurements but do not function in the same manner as collector electrodes concerning the application of a positive charge. Dust collectors, while they help remove dust from the air, generally rely on other methods, such as filtration, rather than utilizing an electrical charge for the collection process.