Understanding the Importance of Dielectric Strength in Electrical Rubber Mats

How do you know if your insulated rubber mat works?
Well, the answer lies in their ‘Dielectric Strength’, as we highlight the importance of it in rubber mats for electrical panels.

Dielectric strength or breakdown strength is defined as the maximum voltage that a material can withstand before becoming electrically conductive.
It measures the strength of a non-conductive material as an electrical insulator.
This value is typically measured in kilovolts per millimeter (kV/mm).
Rubber is a superior electrical insulator because of its natural composition. However, it is not the only electrical insulator that is used for electrical protection. Glass, Ceramics, and Plastic are also preferred in industrial applications.

Electrical mats are so popular because they are reliable. Here are the reasons why dielectric strength is important in electrical insulating mats:

Assures you of Safety

Working near electric current as high as 1000 Volts or above sounds dangerous itself. Minimum negligence can bring out severe consequences. Workers would only agree to go near them if they are assured of complete safety.
Dielectric rubber mats are certified safe only after testing their dielectric strength.

How is the dielectric strength of rubber mats for electrical panels tested?

The breakdown strength of an electrical insulation mat is typically tested using a high voltage breakdown test. In the IEC 61111:2009 guidelines, the dielectric strength test was replaced by a withstand test.
The withstand capacity of the electrical rubber mats is tested using real-world simulations and passing the mats through high-charge electrodes. Once an electrical rubber mat passes the set electric current, that means it has great dielectric strength for the respective electrical mat classes.
The Duratuf specialists have found 5 ways through which you can also check if your rubber mat electrical variant is safe.

Compliance with International and Regional Safety Standards

Safety standards like ASTM D178, IEC 61111:2009, and IS 15652 propose a set of guidelines. These guidelines tell how a rubber mat electrical variant should be made, tested, and used in various setups. Certifications give you a double guarantee that the electrical rubber mat you are using is safe.
The first and foremost thing that you need to find out while buying electrical mats is their dielectric strength. The dielectric voltage is much higher than the maximum usage voltage recommended for the electrical rubber mats.
For example, the dielectric voltage for class 1 ASTM D178 electrical insulating mat is 6.0 kV while its max use voltage is 1.0 kV.
Nonetheless, these guidelines also highlight the conditions where the dielectric strength of the rubber mat electrical variant gets compromised.
If you are planning to buy electrical rubber mats in bulk and store them, take note of these factors affecting the strength of a dielectric mat:

Guarantees the Durability and Longevity

Did you know frequent replacement of PPE affects your revenue at the end of the financial year? Indeed, seasoned buyers are well aware of this fact, but sometimes you are unaware of the rising cost until you tally the final balance sheet.
Therefore, durable electrical rubber mats offer a higher ROI amount.
Good quality rubber mats for electrical panels retain their insulating properties over some time, even when used in demanding environments.
This not only reduces the replacement costs but also puts a stop to unplanned downtime due to safety gear breakdowns.

If you use the right electrical rubber mats for your business applications, it will never break down. It can happen with inferior-quality electrical mats, as well.
Still, in case the rubber mat electrical variant breaks down, here’s what you should do:

Dielectric strength is a critical factor in the effectiveness and safety of electrical rubber mats. By understanding its importance and choosing mats that meet or exceed industry standards, you can provide a safer working environment for your team.

Looking for electrical rubber mats? Contact us today!