Electrical gloves are a critical piece of personal protective equipment (PPE) designed to shield workers from electrical shock. They are classified based on the maximum voltage levels they can safely protect against.
Understanding Electrical Glove Classes
The classification system for electrical gloves ensures that workers select the appropriate level of protection for the specific voltage hazards they may encounter. Each class corresponds to a maximum AC (alternating current) and DC (direct current) voltage that the glove is tested and rated to withstand.
Using the provided reference, here is a breakdown of the different classes and their voltage limits:
| Class | Maximum AC Voltage (V) | Maximum DC Voltage (V) |
|---|---|---|
| 00 | 500 | 750 |
| 0 | 1,000 | 1,500 |
| 1 | 7,500 | 11,250 |
| 2 | 17,000 | 25,500 |
| 3 | 26,500 | 39,750 |
| 4 | 36,000 | 54,000 |
How Classes Relate to Safety
Choosing the correct class of glove is paramount for safety. Using a glove rated for a lower voltage than the potential hazard exposes the worker to significant risk. Conversely, using a glove rated for a much higher voltage than necessary might be less flexible or comfortable, although it still provides adequate protection for the lower voltage.
- Example: If you are working on equipment with a maximum voltage of 480V AC, a Class 00 glove (rated for 500V AC) would provide the necessary protection. For work on high-voltage transmission lines, a Class 4 glove (rated for 36,000V AC) might be required.
Key Considerations
Beyond the voltage class, other factors are important when selecting and using electrical gloves:
- Inspection: Always inspect gloves for holes, tears, or damage before each use.
- Testing: Gloves must be regularly tested by certified laboratories according to standards like ASTM D120.
- Storage: Proper storage away from sunlight, chemicals, and extreme temperatures helps maintain their integrity.
- Leather Protectors: Leather or flame-resistant covers are often worn over rubber insulating gloves to protect them from physical damage.
Understanding these classes and following proper safety protocols ensures effective protection against electrical hazards.
