Class 2 Electrical Insulating Mat – Standards, Applications and Safe Use
Working near power engineering equipment requires not only proper qualifications and procedures, but also appropriate workstation equipment. One of the key elements of both collective and personal protection is the electrical insulating mat (also referred to as insulating floor matting or insulating rubber flooring).
Its purpose is straightforward:
to reduce the risk of electric shock by electrically isolating the worker from the ground and creating an additional protective barrier within the hazard zone.
In this article we explain:
- which standards regulate electrical insulating mats,
- where and when they should be used,
- how to select the correct class and parameters,
- how to properly use, store and inspect insulating matting.
What Is an Electrical Insulating Mat and How Does It Work?
An electrical insulating mat is a specialized rubber floor covering designed to function as an insulating barrier in areas where there is a risk of contact with live electrical components.
In practice, it forms part of the occupational safety system in:
- switchgear rooms,
- control cabinets,
- transformer stations,
- maintenance and service stations,
- measurement and diagnostic workstations.
Operating principle
The mat increases electrical resistance and dielectric strength between the worker and ground.
This reduces the probability of hazardous current flow through the body in the event of:
- insulation failure,
- dielectric breakdown,
- installation errors,
- accidental contact during maintenance,
- arc or short-circuit incidents.
Standards and Requirements – What Matters in Practice?
In Europe (including Poland), the key standard governing insulating floor coverings used for live working is:
EN / IEC 61111 – “Live working – Insulating floor coverings.”
This standard defines:
- insulation classes (based on maximum use voltage),
- dielectric test requirements,
- marking and identification rules,
- material and quality requirements,
- recommendations for use, storage and inspection.
When purchasing an electrical insulating mat for professional applications, the essential questions are:
- Is the product compliant with EN/IEC 61111?
- What insulation class does it have and what voltage range is it designed for?
- Is it permanently marked and traceable?
- Does it include proper documentation (test report/proof test certificate)?
- Are the environmental conditions compatible with the mat’s intended use?
Important:
Not every rubber sheet is an electrical insulating mat. Safety depends on verified dielectric performance, insulation class, and compliance with the relevant standard.
Where Are Electrical Insulating Mats Used?
Electrical insulating mats are used wherever personnel operate within an electric shock hazard zone — in both power utilities and industrial environments.
Typical applications:
- LV / MV / HV switchgear rooms (depending on mat class and internal procedures),
- transformer stations,
- control cabinets and industrial automation,
- maintenance of inverters, soft starters, power supplies, UPS systems,
- electrical measurement and inspection stations,
- laboratories and testing departments,
- workshops and technical service areas with open circuits.
In many industrial facilities, insulating matting is treated as standard fixed equipment — especially where routine switchgear operation and electrical servicing take place.
Selecting Class, Thickness and Dimensions – A Safe Approach
1) Insulation Class (Most Critical Parameter)
Electrical insulating mats are available in insulation classes (typically 0–4).
The correct class should be selected based on:
- maximum operating voltage at the workplace,
- company safety regulations,
- risk assessment,
- type of work performed.
For example, a Class 2 electrical insulating mat is typically selected for applications up to 17 kV AC (subject to manufacturer specification and standard compliance).
If you provide the voltage level and workplace description (e.g., “400/230 V switchboard”, “medium-voltage cabinet”, “inverter servicing”), a suitable class and parameter set can be defined for procurement.
2) Thickness and Surface Construction
Thickness influences:
- mechanical durability,
- long-term wear resistance,
- comfort for standing operators,
- long-term dielectric stability.
Surface finishes may be:
- smooth – easier to clean,
- ribbed / anti-slip – improved grip and safety in industrial environments.
3) Dimensions and Coverage
The mat must realistically protect the working zone:
- in front of switchboards or cabinets,
- in the operator standing area,
- with lateral allowance to prevent stepping off during work.
Industrial facilities typically order insulating mats in roll format or request custom cutting for specific stations.
Environmental Conditions – A Frequently Overlooked Factor
Even the best electrical insulating mat can lose performance prematurely if environmental conditions are not considered.
Pay attention to:
- oils, lubricants and fuels (require chemical resistance),
- acids, alkalis and chemical vapors,
- ozone exposure (certain industrial environments),
- temperature extremes (cold halls or occasional outdoor use),
- heavy abrasion (equipment movement, dragging tools).
In demanding environments, compound selection and mat construction are critical for both safety and service life.
Proper Use of Electrical Insulating Matting
Practical Safety Rules
- The mat must function as insulation between the worker and ground — avoid placing metal objects or sharp elements on it.
- Use on a clean and preferably dry surface.
- Avoid cutting, piercing or mechanically fastening through the mat.
- Ensure edges do not curl upward to prevent tripping hazards.
Cleaning and Maintenance
- Clean using mild detergents (unless otherwise specified by the manufacturer).
- Regularly remove sand and metal filings — they act as abrasive material.
- Avoid aggressive solvents.
- Do not dry with high-temperature air unless recommended.
Inspection and Replacement – When Is a Mat No Longer Safe?
In many facilities, insulating equipment is subject to periodic inspection.
An electrical insulating mat should be withdrawn or verified if:
- cracks, cuts or deep abrasions are visible,
- it becomes brittle, flakes or permanently deforms,
- chemical damage is evident (swelling, softening),
- identification markings are illegible,
- it was exposed to an electrical incident (arc/short circuit).
From a safety perspective, it is better to replace a mat slightly earlier than to operate with uncertain dielectric performance.
Common Mistakes in Procurement and Implementation
- Purchasing “thick rubber” instead of a certified electrical insulating mat.
- Selecting insulation class without referencing actual voltage.
- Ignoring environmental conditions.
- Using visibly damaged matting.
- Providing insufficient coverage area.
Ordering a Class 2 Electrical Insulating Mat from a Manufacturer – What to Specify
When sourcing directly from a manufacturer, prepare a clear specification:
- type of workstation (switchgear, control cabinet, transformer room),
- operating voltage,
- environmental exposure (oils, chemicals, temperature),
- required dimensions (roll width/length or custom cuts),
- surface type (smooth or ribbed),
- requirement for compliance with EN/IEC 61111,
- requirement for dielectric test certification.
Class 2 Electrical Insulating Mat – Manufacturer Specification Example
Our Class 2 electrical insulating mat (EN/IEC 61111 compliant) features:
- anti-slip ribbed surface,
- 1220 mm roll width,
- 5 mm thickness,
- dielectric testing according to the standard,
- proof test certificate supplied with each roll.
For detailed technical specifications and manufacturer documentation, contact us directly.
