Electrical gloves, also known as insulating gloves, are a crucial part of PPE for anyone working with or near electrical systems. These gloves are designed to protect against electrical shock and are classified based on the level of voltage protection they provide. The gloves are usually paired with leather protector gloves to provide mechanical protection against cuts, punctures, and abrasion, which could compromise the insulating gloves.
Electrical Glove Classes and Voltage Levels
Electrical gloves are categorized into different classes according to the maximum voltage they can safely handle. These classes are defined by standards such as ASTM D120 and IEC 60903. Here’s a breakdown of the classes:

1. Class 00:
- Max Use Voltage (AC): 500 volts
- Max Use Voltage (DC): 750 volts
- Color: Often beige or other light colors.
2. Class 0:
- Max Use Voltage (AC): 1,000 volts
- Max Use Voltage (DC): 1,500 volts
- Color: Typically red, but colors can vary.
3. Class 1:
- Max Use Voltage (AC): 7,500 volts
- Max Use Voltage (DC): 11,250 volts
- Color: Typically white, although other colors may be available.
4. Class 2:
- Max Use Voltage (AC): 17,000 volts
- Max Use Voltage (DC): 25,500 volts
- Color: Typically yellow, but this can vary.
5. Class 3:
- Max Use Voltage (AC): 26,500 volts
- Max Use Voltage (DC): 39,750 volts
- Color: Usually green, though colors can differ by brand.
6. Class 4:
- Max Use Voltage (AC): 36,000 volts
- Max Use Voltage (DC): 54,000 volts
- Color: Typically orange, but variations exist.
Important Considerations:
- Leather Protectors: These are worn over the insulating gloves to protect them from physical damage. Leather protectors are not optional; they must be worn to ensure the insulating gloves’ effectiveness is not compromised.
- Regular Testing: Insulating gloves should be tested regularly to ensure their integrity. The testing intervals are usually:
- Class 00 and 0: Every 6 months
- Class 1, 2, 3, and 4: Every 12 months
- Inspection Before Use: Always inspect gloves for cuts, punctures, or other damage before each use. Even a small defect can lead to electrical shock.
- Storage: Gloves should be stored in a cool, dry place, away from direct sunlight and chemicals. They should not be folded or creased.
- Sizing: Proper fit is essential for comfort and safety. Gloves that are too tight can cause hand fatigue, while gloves that are too loose may make it difficult to perform tasks effectively.
Additional Layers of Protection:
- Arc Flash PPE: In environments where arc flash is a risk, gloves may be part of a broader set of PPE, including face shields, arc-rated clothing, and hearing protection.
- Voltage Detectors: Using a voltage detector in conjunction with insulated gloves provides an additional layer of safety.
Would you like more information on any specific class of electrical gloves or advice on how to choose the right one for your needs? Just contact us SINOMOX at www.sinomox.com.