Electrical Safety Rubber Matting
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Description
Updated June 2026
Electrical safety rubber matting protects personnel working on or near live electrical equipment by providing a high-resistance insulating barrier between the operator and earth. All Rubberco electrical safety matting is tested and certified to IEC 61111:2009 — the international standard for electrical insulating matting for use in LV and HV electrical installations.
IEC 61111 Electrical Safety Matting — Class Guide
IEC 61111:2009 defines five classes of electrical safety matting based on the maximum working voltage. Selecting the correct class is a legal and safety requirement — under-spec matting cannot provide the required protection:
Class Max Working Voltage (AC) Proof Test Voltage Typical Application Class 00 500V AC 2,500V Low voltage domestic/light commercial switchgear Class 0 1,000V AC 5,000V LV distribution boards, control panels up to 1kV Class 1 7,500V AC 10,000V (tested 20,000V) Substations, switchrooms up to 7.5kV working Class 2 17,000V AC 20,000V (tested 30,000V) 11kV and 33kV substations, high voltage switchgear Class 3 26,500V AC 30,000V (tested 40,000V) High voltage installations, grid substations Which Class Do I Need?
The correct matting class depends on the highest voltage present in the working area — not just the nominal system voltage:
- DNO substations (11kV): Class 2 minimum — the 11kV system voltage requires Class 2 rated matting (17,000V AC working)
- Industrial HV switchgear (33kV): Class 3 — 33kV installations require matting rated for 26,500V working
- LV distribution boards (up to 1kV): Class 0 is the standard specification for UK 415V three-phase environments
- Domestic consumer units: Class 00 — 500V AC working voltage covers standard UK residential installations
When in doubt, always specify the next class up. Under-specification is a safety and liability risk — over-specification is simply a modest cost premium.
Standards Compliance & Certification
All electrical safety matting in this range complies with:
- IEC 61111:2009 — Electrical insulating matting for use in LV and HV electrical installations
- BS EN 61111:2009 — The UK adoption of the IEC standard (identical requirements)
- Products carry class-specific colour coding where required: black is standard; some Class 2+ products available in red for clear demarcation in HV environments
- Test certificates available on request for compliance documentation
Electrical Safety Matting Size and Coverage Guide
Installation Type Recommended Coverage Notes Single distribution board / consumer unit 1m × 1m minimum Cover full arm-reach area in front of board LV switchroom / MCC panel Full floor of operating area Typically supplied in rolls cut to room width HV substation (11kV / 33kV) Full standing area + 500mm surround Use Class 2 or Class 3 as appropriate Mobile / portable use 1m × 0.6m per operative Rolled or folded portable mat; carry with test kit Inspection, Testing & Replacement Schedule
Electrical safety matting is life-critical PPE. A damaged or degraded mat provides no protection — regular inspection and periodic testing are mandatory:
Daily Visual Inspection
Before each use, inspect the mat for: cuts, punctures, or tears in the rubber surface; delamination or bubbling (indicating moisture ingress or age-related degradation); contamination with conductive materials (carbon dust, metal swarf); and visible wear-through on high-traffic areas. A mat with any defect must be withdrawn from service immediately.
Periodic Electrical Test
IEC 61111 recommends periodic electrical testing to verify insulating properties have not degraded. The industry practice for UK electrical installations:
- Low-risk environments (office LV boards): Test every 2–3 years
- High-traffic electrical environments: Test annually
- After any suspect damage: Test before returning to service
Testing requires a high-voltage insulation tester capable of applying the class-specific proof voltage. Replacement is required if the mat fails to meet the dielectric strength specification of its class.
Replacement Triggers
Replace electrical safety matting immediately if: the mat fails electrical testing; it shows visible cuts, punctures, or tears deeper than 1mm; there is delamination covering more than 5% of the surface; or it has been exposed to solvents, oils, or chemicals that may have compromised the rubber compound.
Frequently Asked Questions — Electrical Safety Rubber Matting
Is electrical safety matting a legal requirement in the UK?
Yes — under the Electricity at Work Regulations 1989, employers must ensure that all electrical work is conducted with adequate precautions. The Health and Safety Executive (HSE) and IET Wiring Regulations (BS 7671) both specify insulating matting as a protective measure when working on or near live electrical equipment. For HV environments (above 1kV), electrical safety matting is a mandatory control measure under UK HSE guidance.
What is the difference between Class 0 and Class 00 electrical matting?
Class 00 is rated for up to 500V AC (2,500V proof tested) — covering domestic consumer units and light commercial switchgear up to 500V working. Class 0 is rated for up to 1,000V AC (5,000V proof tested) — the standard for UK 415V three-phase LV distribution boards, control panels, and industrial switchgear up to 1kV. Most UK commercial and industrial electricians working on LV systems should use minimum Class 0.
How long does electrical safety matting last?
With correct storage (away from UV, ozone, oils, and solvents) and regular inspection, IEC 61111 electrical safety matting typically maintains its insulating properties for 10+ years. However, life expectancy is determined by condition rather than age — a mat must be electrically tested and visually inspected before continued use. Age alone does not invalidate a mat that passes electrical testing and visual inspection.
Can electrical safety matting get wet?
Electrical safety matting must be kept dry during use. Water on the mat surface can create conductive pathways that bypass the insulating properties of the rubber. Mats should be stored dry and inspected for moisture before each use. If a mat has been exposed to flooding or heavy water ingress, it must be fully dried and electrically tested before being returned to service.
What size electrical safety mat do I need?
The mat must cover the full standing/working area in front of the electrical equipment, with sufficient coverage for all positions adopted during the work. For a standard UK distribution board or panel, a minimum 1m × 1m mat covers typical working postures. For switchroom floors, matting is typically supplied in rolls cut to the full room width, providing continuous coverage of the working area.
Can I get a test certificate with my electrical safety matting?
Yes — test certificates confirming compliance with IEC 61111:2009 are available on request for all classes of electrical safety matting in our range. For compliance documentation, insurance, or project specifications requiring certification evidence, contact us when placing your order. Certificates are typically supplied by email within one working day.
⚠️ Safety Notice
Electrical safety matting is life-critical equipment. Always select the correct class for your installation voltage, inspect before each use, and replace any mat showing signs of damage or degradation. When in doubt about specification, consult a qualified electrical engineer or contact Rubberco's technical team for guidance.
Need Specialist Electrical Safety Matting?
Contact Rubberco for tailored electrical safety matting specifications, test certificates, and bulk project pricing. Free mainland UK delivery on qualifying orders.
Get a Quote →Frequently Asked Questions
What BS EN 61111 class do I need for a 11kV substation?
Class II (white) is the minimum requirement for 11kV secondary substations in the UK. Class II matting is proof-tested to 20kV AC and rated for working voltages up to 17kV AC. Most DNO (Distribution Network Operator) specifications — including Western Power Distribution, SP Energy Networks, and UK Power Networks — mandate Class II as the minimum for 11kV switchgear rooms. Always check the specific DNO technical standard for your network area.
What is the difference between anti-static ESD matting and electrical insulating matting?
These are fundamentally opposite products that must never be interchanged. ESD (anti-static) matting is designed to slowly dissipate static electricity — it has moderate resistance (10⁶-10⁹ Ω) to allow controlled charge bleed-off. BS EN 61111 electrical insulating matting has extremely high resistance (greater than 10¹³ Ω) to prevent current flow and protect workers from electrocution. ESD matting in a switchgear room provides zero electrical protection and could accelerate electrocution.
How often should BS EN 61111 electrical safety matting be tested?
BS EN 61111 does not specify a mandatory re-test interval — frequency is determined by risk assessment. Most organisations proof-test annually or biannually. Test immediately after any visible damage, chemical contamination, or suspected impact from tools. Retain test records as evidence of compliance under the Electricity at Work Regulations 1989. Some DNO specifications require annual proof testing as a condition of site access.
Can electrical safety matting be bonded or glued to the floor?
No. BS EN 61111 electrical insulating matting should never be bonded to the floor with adhesive. Adhesives may creep to the mat surface and create conductive paths that compromise insulation integrity. Matting must be loose-laid only. Use non-conductive edge ramps or trims to prevent lifting at edges. Metal edge trims must never be used — they create a conductive path to earth at the mat perimeter.
Buying Guide Update — June 2026
The electrical safety matting market in 2026 has seen several important developments relevant to UK buyers and specifiers:
- Building Safety Act 2022 implementation: For higher-risk buildings (HRBs), electrical safety matting in switch rooms and substations must be included in the mandatory Building Safety Case documentation. Retain IEC 61111 test certificates and installation records as part of Golden Thread obligations.
- EV charging infrastructure growth: The rapid expansion of EV fast-charging sites (50kW–350kW DC chargers) has increased demand for Class 1 and Class 2 electrical safety matting in EV charging equipment rooms. Standard SBR rubber matting is not an adequate substitute — always specify IEC 61111 rated matting in proximity to HV EV charging equipment.
- Smart grid substations: Increased deployment of smart grid switching equipment and battery energy storage systems (BESS) has created new electrical safety matting requirements in secondary substations. Class 2 matting (17kV working) is typically specified for 11kV smart grid environments.
- DNO site access requirements: Several distribution network operators have updated their contractor safety requirements in 2025-2026 to mandate annual proof-testing of electrical safety matting by an accredited test house. Check your specific DNO's technical standard before ordering replacement matting.
IEC 61111 Electrical Safety Matting: Quick Selection Guide — June 2026
Application System Voltage Required Class Proof Test Voltage Home EV charger room (7kW–22kW AC) 230V / 415V Class 00 2,500V LV distribution board, industrial MCC 415V three-phase Class 0 5,000V EV DC fast charger room (50kW–150kW) Up to 1kV Class 0 5,000V 11kV secondary substation 11kV Class 2 20,000V 33kV grid substation 33kV Class 3 30,000V BESS / battery energy storage Up to 1.5kV DC Class 1 minimum 10,000V Additional FAQs — June 2026
Is IEC 61111 and BS EN 61111 the same standard?
Yes — BS EN 61111:2009 is the British Standard adoption of IEC 61111:2009. The requirements are identical. Products certified to either standard are equally compliant for UK applications. Rubberco electrical safety matting carries dual IEC/BS EN 61111 certification.
Can I use electrical safety matting on EV fast charger sites?
Yes — and for HV EV charging equipment rooms (50kW+ DC chargers with rectifier units operating above 415V), IEC 61111 Class 0 or Class 1 matting is the correct specification. For standard 7kW–22kW AC home and workplace chargers operating at 230V/415V, Class 00 is sufficient. Always check the specific voltage of the equipment room, not just the output charge rate. Contact our technical team for project-specific specification advice.
What colour is IEC 61111 electrical safety matting?
Standard electrical safety matting is black. Some manufacturers provide colour-coding for class identification — typically red for Class 2 and above in high-voltage environments. Black matting is suitable for all classes. Where colour-coded matting is specified (often by DNO or network operator requirements), confirm the exact colour scheme required before ordering as there is no universal standardised colour-coding in IEC 61111 itself.
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