Testing a 33 kV Rubber Mat? Here’s All You Should Know in 2025
A 33 kV rubber mat belongs to Class C of an IS 15652 standard electrical insulating mat. As the name suggests, the 33 kV rubber mat specification best suits for high-voltage applications- up to 33 kV or 33000 volts.
Thus, undoubtedly, it is crucial in industries that run on high-tension machines. While the 33 kV insulating rubber mat is expected to provide maximum safety to people standing on it- are you sure they will?
The price of this electrical mat is the highest of all the other classes. Are you getting the right product at the steep 33 kV rubber mat price you are paying?
Think twice! How do you know your 33 kV rubber mat is safe?
Yes, you are right! If you go for a certified 33 kV insulating rubber mat in India, it will end all your doubts.
Do you want to know how is a 33 kV rubber mat tested? Go through this blog now!
33 kV rubber mat specification
A 33 kV rubber mat or the Class C of the IS 15652 electrical mats is 3 mm thick. Its features are:
Class | Max Use Voltage | AC Proof Voltage | Dielectric Voltage | Standard Thickness |
---|---|---|---|---|
C | 33.0 kV | 36.0 kV | 65.0 kV | 3.0 mm |
Is it Compulsory to Test your 33 kV Rubber Mat?
Did you know an uncertified mat is sold cheaper than a third-party tested 33 kV rubber mat?
All 33 kV mat manufacturers will give you a ‘manufacturer’s test certificate’ when you ask for compliance documents. However, not all of them can provide you with an ERDA certificate. The BIS, or Bureau of Indian Standards, responsible for assessing the quality of various products by conducting a series of tests, is the certifying body for insulating mats in India.
For high-voltage applications, such as 33 kV, ensuring the mat’s dielectric strength and insulating properties is vital. Proper testing verifies:
Testing a 33 kV Insulating Rubber Mat: How is it Done?
Various aspects of a 33 kV rubber mat are tested using different methods. Some of the features tested are:
Dielectric Strength Test
This test measures the 33 kV rubber mat’s ability to resist electrical breakdown under high voltage.
Insulation Resistance Test
The insulation resistance test checks the electrical leakage of the 33 kV IS 15652 electrical mat.
Tensile Strength and Elongation Test
These tests ensure the mat’s durability and flexibility.
Acid and Oil Resistance Test
A 33 kV rubber mat is mandatory in an array of industries, specifically in chemical refineries or oil extraction plants. Natural rubber degrades when exposed to chemicals or oil. But a 33 kV insulating rubber mat does not. The acid and oil resistance test evaluates resistance to chemicals commonly encountered in industrial environments.
Flame Retardancy Test
An insulating mat is made of rubber, which is highly flammable. Still, as per 33 kV mat manufacturers, the mat has flame retardant properties- which is confirmed by this test.
Compression Set Test
Assesses the mat’s ability to retain its original shape after being compressed.
Equipment Needed for Testing a 33 kV Rubber Mat
The 33 kV rubber mat specification features are tested using many apparatus in an enclosed high-voltage set-up.
Testing the mats: DIY or Seeking Professional Help?

You can inspect the electrical mat from time to time- rather, as specialists, we insist you do so. By doing so, you can minimize several risks. Moreover, you would know when is the right time to change your 33 kV electrical rubber mat.
Nonetheless, you should always trust professionals to be completely sure of the effectiveness of the mat. Before you enquire about the 33 kV rubber mat price, ask your supplier if they provide an ERDA certificate for the product!
Whether you’re a reseller or end user, prioritizing proper testing will protect both your workforce and your bottom line.
Duratuf IS 15652 electrical mats are ERDA certified. Do you want to see a copy of the testing certificate? Call us now!