Which conditions should sewage treatment workers avoid when working near electrical equipment?

Sewage treatment workers should avoid wearing wet clothing when working near electrical equipment because wet clothing can conduct electricity, increasing the risk of electric shock. When clothing is wet, it effectively reduces the insulation properties of fibers, making it easier for electrical currents to pass through a person's body should they come in contact with energized equipment or materials. This safety measure is critical to prevent serious injuries or fatalities due to electrical hazards.

Rubber-soled shoes are often recommended in such environments to provide insulation from electricity, thus they do not present the same risk as wet clothing. Loose-fitting clothing may not directly relate to electrical safety but can be hazardous in machinery settings where it could get caught. Similarly, nylon clothing is not inherently dangerous regarding electrical conductivity, but it may pose other safety concerns in terms of flammability. Nonetheless, wet clothing remains the primary hazard in this context due to its conductive properties.