ASTM D120 Electrical Insulating Glove Testing

High-Voltage Dielectric and Leakage Current Testing for Electrical Insulating Gloves

Electrical insulating rubber gloves are an essential form of personal protective equipment (PPE) for electricians and other professionals working on or near energized electrical equipment. The proper inspection, care and periodic electrical testing of these gloves is critical to maintaining worker safety.

Insulating gloves should be carefully inspected before each use. A visual and air inspection can help identify punctures, cuts, cracking, deterioration and other physical damage. However, visual inspection alone cannot determine whether a glove continues to provide its required level of electrical insulation.

Creative IT provides professional high-voltage dielectric and leakage-current testing of electrical insulating gloves from our facility in Burbank, California. We serve customers throughout Los Angeles and Southern California, as well as businesses and organizations nationwide across the United States.

ASTM D120 and ASTM F496 Insulating Glove Testing

In the United States, rubber insulating gloves are classified according to standards including ASTM D120 – Standard Specification for Rubber Insulating Gloves.

The inspection, care and electrical retesting of rubber insulating gloves in service are addressed by ASTM F496, together with applicable OSHA electrical protective equipment requirements.

Electrical insulating gloves are available in different voltage classes. The correct glove class must be selected for the voltage and working conditions involved.

Regardless of class, gloves should be visually inspected before use. Electrical retesting must also be performed at the intervals required by applicable OSHA requirements, ASTM standards, manufacturer instructions and the employer's electrical safety program.

Electrical Glove Retesting Intervals

Under applicable U.S. OSHA requirements for rubber insulating equipment, electrical insulating gloves generally require electrical testing before first issue and every six months thereafter.

Additional electrical testing may also be required after certain conditions or incidents that could affect the insulating properties of the gloves.

Testing requirements should always be verified against the current applicable OSHA regulations, ASTM standards, manufacturer instructions and workplace safety requirements.

High-Voltage Dielectric Testing Process

Creative IT uses specialized high-voltage dielectric test equipment designed to evaluate the electrical integrity of insulating gloves.

During the test, the insulating glove is subjected to the appropriate electrical proof-test voltage for its class under controlled conditions. Leakage current is monitored to help determine whether the glove continues to provide the required electrical insulation.

Our high-voltage testing system can test multiple items during a testing cycle and monitor the leakage current associated with individual test positions. This provides an efficient method of identifying gloves that do not meet the required electrical test criteria.

Electrical testing can reveal deterioration or insulation problems that may not always be apparent during an ordinary visual inspection.

Testing Equipment for Electrical Insulating Gloves

Creative IT uses specialized equipment for high-voltage testing of electrical insulating PPE. The system is designed to provide controlled, repeatable testing while monitoring electrical leakage current.

Key capabilities include:

• Testing of multiple electrical insulating gloves during a test cycle
• Individual leakage-current monitoring
• Controlled high-voltage test output
• Testing appropriate to the insulation class of the glove
• Clear digital display of test information
• Identification of gloves that do not meet applicable test criteria
• Consistent and repeatable testing procedures

Electrical Insulating Glove Testing – Classes 00, 0, 1, 2, 3 and 4

Creative IT provides testing for the major classes of electrical insulating rubber gloves:

• Class 00 electrical insulating gloves
• Class 0 electrical insulating gloves
• Class 1 electrical insulating gloves
• Class 2 electrical insulating gloves
• Class 3 electrical insulating gloves
• Class 4 electrical insulating gloves

Safe Use of Electrical Insulating Rubber Gloves

The improper use of electrical insulating rubber gloves can expose workers to potentially life-threatening electrical hazards.

Regular inspection and electrical retesting help determine whether insulating gloves remain suitable for continued service.

When properly cared for and stored, quality rubber insulating gloves can provide reliable service. However, normal wear, contamination, mechanical damage, environmental exposure and aging can gradually affect the integrity of the insulating material.

Testing helps identify electrical insulation failures that could increase the risk of electrical shock if a glove's protective integrity has been compromised.

Electrical Insulation Ratings for Rubber Gloves

The following table summarizes the major electrical insulating glove classes and their voltage ratings:

Voltage classifications and testing requirements should be verified against the current applicable ASTM, OSHA and manufacturer requirements before use. The correct PPE and glove class must always be selected for the specific electrical hazard.

Why Regular Electrical Glove Testing Matters

Electrical insulating gloves are designed to create an insulating barrier between a worker and potentially hazardous electrical voltage. Damage to this protective barrier may significantly reduce the protection provided by the glove.

Conditions that may affect insulating gloves include:

• Cuts and punctures
• Cracking or splitting
• Abrasions
• Excessive stretching
• Oil and chemical contamination
• Ozone exposure
• Excessive heat
• Improper storage
• Normal wear and aging
• Previous electrical stress

Because some electrical insulation defects may not be readily visible, periodic high-voltage dielectric testing is an important component of an electrical PPE maintenance program.

Who Uses Our Electrical Glove Testing Services?

Creative IT's electrical insulating glove testing service is suitable for a wide range of organizations and professionals, including:

• Electrical contractors
• Electricians
• Utility and power companies
• Power generation facilities
• Industrial maintenance departments
• Manufacturing facilities
• Facilities management companies
• Data centers
• Telecommunications companies
• Government organizations
• Schools and universities
• Hospitals and healthcare facilities
• Solar and renewable energy companies
• EV charging and electrical infrastructure companies

Electrical Insulating Glove Testing in Los Angeles and Burbank

Creative IT provides professional electrical insulating glove testing from our Burbank, California facility.

Our location allows us to conveniently serve electrical contractors, businesses and organizations throughout Burbank, Los Angeles, Glendale, Pasadena, North Hollywood, Hollywood, the San Fernando Valley, Los Angeles County and Southern California.

Nationwide Electrical Insulating Glove Testing

Creative IT also provides nationwide electrical insulating glove testing for customers throughout the United States.

If your company is located outside Southern California, insulating gloves can be shipped to our Burbank facility for professional electrical testing.

This provides businesses throughout the United States with access to high-voltage electrical PPE testing without requiring their own specialized testing equipment.

Organizations with multiple technicians, multiple locations or larger quantities of insulating gloves can contact us to discuss recurring and volume testing requirements.

Contact Creative IT for ASTM D120 Electrical Glove Testing

For ASTM D120 electrical insulating glove testing, ASTM F496 in-service testing, high-voltage dielectric testing and electrical glove retesting, contact Creative IT.

Creative IT
547 North Catalina Street
Burbank, CA 91505
United States

Phone: (213) 986-4855
Email: info@creativeitusa.com
Hours: Monday – Friday, 9:00 AM – 6:00 PM

Local Service: Burbank, Los Angeles, Los Angeles County and Southern California
Nationwide Service: Customers throughout the United States can ship their electrical insulating gloves to our Burbank facility for testing.

Contact Creative IT today for information about electrical insulating glove testing, turnaround times, shipping and volume testing.