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Importance of IEC 61111:2009 for Electrical Insulation on Substation Rubber Mats
Aug 19, 2025
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Importance of IEC 61111:2009 for Electrical Insulation on Substation Rubber Mats
Overview of IEC 61111:2009
IEC 61111:2009 is the international standard that specifies requirements and test methods for electrical insulating matting made of elastomer. It updates the original 1992 edition and 2002 amendment, ensuring live-working protection is assessed consistently across manufacturers and applications.
1. Key Requirements and Testing Procedures
2. Classes of Electrical Insulating Mats
Table: Voltage classes, test voltages and dielectric performance
Selecting the correct class prevents mat breakdown during unexpected voltage surges and guarantees user safety.
3. Why Compliance Matters
4. Practical Considerations for Usage
5. Holistic Safety System
To maximize protection, pair IEC 61111:2009-compliant matting with:
Overview of IEC 61111:2009
IEC 61111:2009 is the international standard that specifies requirements and test methods for electrical insulating matting made of elastomer. It updates the original 1992 edition and 2002 amendment, ensuring live-working protection is assessed consistently across manufacturers and applications.
1. Key Requirements and Testing Procedures
- Defines approved elastomer materials, minimum width, and thickness to guarantee uniform insulation under load.
- Includes slip-resistance tests to verify stability in oily, wet, or contaminated environments.
- Adopts defect evaluation criteria (per IEC 61318) to identify cuts, blisters or inclusions that could reduce dielectric strength.
2. Classes of Electrical Insulating Mats
Table: Voltage classes, test voltages and dielectric performance
| Class | Test Voltage | Working Voltage | Dielectric Strength |
| 0 | 5 kV | 1 000 V | 10 kV |
| 1 | 10 kV | 7 500 V | 20 kV |
| 2 | 20 kV | 17 000 V | 30 kV |
| 3 | 30 kV | 26 500 V | 40 kV |
| 4 | 40 kV | 36 000 V | 50 kV |
3. Why Compliance Matters
-
Protection against electric shock
Certified mats form a non-conductive barrier, minimizing the chance of current passing through a worker’s body. -
Legal and regulatory adherence
OSHA, HSE and many other authorities reference IEC 61111:2009. Non-compliant installations can incur fines, work stoppages or liability risk. -
Durability and performance
Mats tested under this standard resist moisture, oils, ozone, and UV exposure—ensuring long-term insulation integrity.
4. Practical Considerations for Usage
- Inspect mats daily for cuts, tears, hardening or embedded debris; retire any with visible damage.
- Clean only with mild detergent and water; avoid solvents or abrasive cleaners that degrade elastomer.
- Store rolled or flat in a dry area, shielded from direct sunlight, heat sources and sharp objects.
5. Holistic Safety System
To maximize protection, pair IEC 61111:2009-compliant matting with:
- Insulating gloves and sleeves rated to the same voltage class
- Face shields or goggles to guard against arc-flash events
- Lockout/tagout procedures and live-line tools for controlled maintenance
How to Choose the Right IEC 61111:2009 Class for Insulation Rubber Mats
Aug 19, 2025
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How to Choose the Right IEC 61111:2009 Class for Insulation Rubber Mats
1. Determine Your Maximum System Voltage
Start by identifying the highest voltage present in the work area.
2. Apply a Safety Margin
IEC 61111 voltage classes are discrete steps. To prevent breakdown under unexpected conditions:
3. Match to IEC 61111 Class Table
Once you know your system voltage plus margin, use this reference:
4. Account for Environmental and Operational Factors
Beyond voltage, consider how, where, and how often the mats will be used:
5. Validate with Risk Assessment
Perform or review a formal risk assessment to confirm:
6. Implement and Maintain
1. Determine Your Maximum System Voltage
Start by identifying the highest voltage present in the work area.
- Measure the nominal voltage of live parts (transformers, switchgear, cables).
- Consider any temporary overvoltage or surge potentials (lightning, switching transients).
2. Apply a Safety Margin
IEC 61111 voltage classes are discrete steps. To prevent breakdown under unexpected conditions:
- Pick the next higher class above your system’s maximum voltage.
- For example, if your highest live voltage is 11 kV, choose Class 3 (26.5 kV working voltage).
3. Match to IEC 61111 Class Table
Once you know your system voltage plus margin, use this reference:
| IEC 61111:2009 Class | Test Voltage | Working Voltage | Dielectric Strength |
| 0 | 5 kV | 1 000 V | 10 kV |
| 1 | 10 kV | 7 500 V | 20 kV |
| 2 | 20 kV | 17 000 V | 30 kV |
| 3 | 30 kV | 26 500 V | 40 kV |
| 4 | 40 kV | 36 000 V | 50 kV |
4. Account for Environmental and Operational Factors
Beyond voltage, consider how, where, and how often the mats will be used:
- Contamination risk (oil, dust, moisture): choose mats with higher slip-resistance grades.
- Mechanical stress (foot traffic, tool drops): thicker mats offer greater durability.
- Outdoor vs indoor: UV-resistant finishes matter if mats see sunlight.
5. Validate with Risk Assessment
Perform or review a formal risk assessment to confirm:
- All live-working tasks and their voltages are catalogued.
- Possible overvoltage scenarios are covered by the selected class.
- Environmental hazards will not undermine insulation integrity.
6. Implement and Maintain
- Mark or tag mats with their IEC 61111 class so users can verify compatibility at glance.
- Train personnel to match mats to specific jobs and voltages.
- Inspect, clean and retest mats per the standard's intervals to ensure ongoing protection.
Maintenance Instructions for 3A Coil Mat, HD-18 Heavy Duty Coil Mat (Unbacked), 3M Nomad 6050 Coil M
Aug 19, 2025
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Maintenance Instructions for 3A Coil Mat, HD-18 Heavy Duty Coil Mat (Unbacked), 3M Nomad 6050 Coil Mat
1) Initial Cleaning :
It is recommended to vacuum the floor with a heavy-duty commercial vacuum cleaner to remove all dirt, debris and grit.
(This is one of the most important maintenance activities to maintain the appearance and performance of your floor, yet is often the most overlooked and ignored)
Use a heavy-duty commercial vacuum cleaner that features a rotary power brush or beater bar (refer to your local janitorail supplier) to remove deeply embedded dirt particles, especially in heavy traffice areas. Floor mats tend to release more dirt when they are dry.
2) Daily Cleaning :
**Same as the abovementioned in section 1**
3) Weekly Cleaning :
4) Periodic Cleaning :
#Option A -- Remove the floor matting from its service area.
Scrub the floor mat using a brush with a low foaming general purpose cleaner.
Water-based degreaser is recommended for heavy grease buildup.
Flush the matting with hot water and allow it to dry flat before placing it back into its service area.
#Option B -- Remove the floor matting from its service area.
Clean the floor mat using a high-pressure washer with a low foaming general purpose cleaner.
Flush the matting with hot water and allow it to dry flat before placing it back into its service area.
5) Spot Removal :
6) Gum Removal :
1) Initial Cleaning :
It is recommended to vacuum the floor with a heavy-duty commercial vacuum cleaner to remove all dirt, debris and grit.
(This is one of the most important maintenance activities to maintain the appearance and performance of your floor, yet is often the most overlooked and ignored)
Use a heavy-duty commercial vacuum cleaner that features a rotary power brush or beater bar (refer to your local janitorail supplier) to remove deeply embedded dirt particles, especially in heavy traffice areas. Floor mats tend to release more dirt when they are dry.
2) Daily Cleaning :
**Same as the abovementioned in section 1**
3) Weekly Cleaning :
- Remove the floor mat from its service area.
- Turn the floor mat over and operate the vacuum cleaner's beater bar, and dry vaccum on the back side of matting.
- Pickup matting off the floor and clean the dirt/debris from flooring (sweep, vacuum, damp mop, etc).
- Flush both sides of the floor mat with warm water to remove remaining dirt if needed.
- Let the floor mat to dry completely before placing it back into its service area.
-
Place the floor mat back to its service area and vacuum the top surface of matting.
**Remarks follow as the abovementioned in section 1**
4) Periodic Cleaning :
#Option A -- Remove the floor matting from its service area.
Scrub the floor mat using a brush with a low foaming general purpose cleaner.
Water-based degreaser is recommended for heavy grease buildup.
Flush the matting with hot water and allow it to dry flat before placing it back into its service area.
#Option B -- Remove the floor matting from its service area.
Clean the floor mat using a high-pressure washer with a low foaming general purpose cleaner.
Flush the matting with hot water and allow it to dry flat before placing it back into its service area.
5) Spot Removal :
- Use a clean absorbent cloth or paper towel to absorb as much of the liquid as possible when a spill occurs.
-
Spray the stained area with an all-purpose spot remover and rub the surface with a clean white cloth (turn the cloth often to a clean side).
**Test the spot removers on an inconspicuous area of the mat before cleaning the main area.
6) Gum Removal :
- Excess chewing gum should be scraped off with a standard putty knife.
- Chewing gym residues may require the use of a citrus-solvent based spot remover or a chewing gum freezing chemical (aerosol) from your local janitorial supplier.
Maintenance Instructions for 3300 Tough Rib Mat, DCM3600 Dust Control Mat, LD969 Laundry Mat & RG920
Aug 19, 2025
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Maintenance Instructions for 3300 Tough Rib Mat, DCM3600 Dust Control Mat,
LD969 Laundry Mat & RG9200 Premier Water Absorbent Mat (Premier Grade Roll Mat)
The cleaning and maintenance instructions below are recommended to uphold the appearance and effective performance of the product.
1) Preventative Maintenance :
We strongly recommend installing and maintaining entrance matting (preferably permanently installed) at all outdoor entrances (20-30 linear feet for major entrances; less for infrequently used entrances) because around 90% of all dirt in a building comes in on footwear. Doing this will improve indoor air quality, reduce flooring maintenance costs, and lengthen the life of your interior floors.
2) Furniture Protection :
Protect flooring from damage by furniture by using the proper glides, casters and/or floor protectors. Prevent damage by wheeled furniture, appliances, dollies, pallet jacks and etc by using wheels or casters that are appropriate for the load being carried. When moving very heavy objects across the floor, even if they are on wheels, it is recommended to cover the floor with plywood or hardboard panels to prevent indentations, scratching or other damage to the floor.
3) Routine Cleaning :
4) Deep Cleaning :
5) Spot Removal :
6) Gum Removal :
7) Ice Melt Removal :
LD969 Laundry Mat & RG9200 Premier Water Absorbent Mat (Premier Grade Roll Mat)
The cleaning and maintenance instructions below are recommended to uphold the appearance and effective performance of the product.
1) Preventative Maintenance :
We strongly recommend installing and maintaining entrance matting (preferably permanently installed) at all outdoor entrances (20-30 linear feet for major entrances; less for infrequently used entrances) because around 90% of all dirt in a building comes in on footwear. Doing this will improve indoor air quality, reduce flooring maintenance costs, and lengthen the life of your interior floors.
2) Furniture Protection :
Protect flooring from damage by furniture by using the proper glides, casters and/or floor protectors. Prevent damage by wheeled furniture, appliances, dollies, pallet jacks and etc by using wheels or casters that are appropriate for the load being carried. When moving very heavy objects across the floor, even if they are on wheels, it is recommended to cover the floor with plywood or hardboard panels to prevent indentations, scratching or other damage to the floor.
3) Routine Cleaning :
- Vacuum cleaning using a commercial brush vacuum cleaner.
- Removing dirt/debris is most effective on dry matting.
-
Recommendations for vacuum frequency of
- Heavy foot traffic/soiling (1 Time per day)
- Light foot traffic/soiling (2 Times per day)
- Occasional foot traffic/Minimal soiling (1 Time per week)
4) Deep Cleaning :
- Vaccum matting and remove any dirty spots.
- Deep clean matting using the Hot Water Extraction method.
- Extration cleaning method removes deeply embedded soils and should be performed as needed, based on th traffic and soil levels.
- Best results and quickest dry times can be easily achieved with a commercial truck-mounted steam extraction machine.
- When clear water is obtained during the extraction process, the dirt has been removed from the carpet matting.
-
Recommendations for deep cleaning frequency of
- Heavy foot traffic/soiling (2 Times per year)
- Light~Medium foot traffic/soiling (1 Time per year)
5) Spot Removal :
- Remove spills and spots as soon as possible after they occur.
- Remove solid components using a scoop of cleaning liquids with a clean white colth or tissue paper.
- Always treat the spot with a clean damped cloth.
- Always work towards the middle of the spot, in the direction of the mat pile.
- Pat on the marked spot, do not rub; Let the spot dry then vacuum the treated area.
- Call in an cleaning expert for dried or hardened spots, who can prevent the carpet from getting damaged by using the right product.
6) Gum Removal :
- Excess chewing gum should be scraped off with a standard putty knife.
- Chewing gym residues may require the use of a citrus-solvent based spot remover from your local janitorial supplier.
7) Ice Melt Removal :
- To prevent ice melt build-up, vacuum periodically throughout the day when ice melt method is being used.
- Follow the 'deep cleaning' method instructions in section 4 above to remove ice melt residue.