Percentage & Phased Electrical Testing
Strategic compliance for large-scale facilities. TM UK Group Limited offers structured, rolling EICR testing programs designed to spread your costs, eliminate massive operational shutdowns, and guarantee continuous legal compliance.
What is Phased (Percentage) EICR Testing?
Testing a massive commercial building, a sprawling university campus, or a 24/7 manufacturing plant all at once is a logistical nightmare. Shutting down power to the entire site for a 100% EICR is often completely unviable for modern businesses.
Phased Testing is the strategic solution. Instead of testing 100% of your installation every 5 years, we test a structured percentage of your facility annually—most commonly, 20% every year for 5 years. By the end of the statutory cycle, the entire site has been thoroughly inspected and certified, but without the financial shock or operational paralysis of a single, massive testing project.
Why Facilities Managers Choose Phased Testing
For large estates and multi-site portfolios, moving to a percentage testing model offers immediate and transformative benefits:
- 📊 Predictable Budgeting (OpEx vs CapEx): Instead of a massive capital expenditure hit every five years, testing costs are evenly distributed across your annual operational budget, making cash flow entirely predictable.
- ⚙️ Zero Total Shutdowns: We isolate and test small zones (e.g., single floors or specific distribution boards) one at a time, ensuring your core business operations never stop.
- 🛡️ Continuous Health Monitoring: A 5-year gap between tests is a long time for a fault to develop. With 20% annual testing, our engineers are on-site every year, allowing us to spot systemic degradation across the site much earlier.
- 🔧 Manageable Remedial Works: If faults are found, remedial repairs are spread out and budgeted annually, rather than facing a mountain of urgent repair bills all at once.
Is Percentage Testing Legally Compliant?
Yes, absolutely. BS 7671 (The IET Wiring Regulations) fully permits phased testing, provided it is managed meticulously. To remain compliant under the Electricity at Work Regulations 1989 (EAWR), the testing must adhere to strict administrative rules:
- Full Coverage: 100% of the installation must be tested by the end of the mandated periodic cycle (e.g., 5 years for commercial/educational buildings).
- Strategic Sampling: The 20% tested each year must be a true, representative sample of the installation, covering different areas and distribution boards, not just the “easy to reach” circuits.
- Immaculate Record-Keeping: The duty holder must maintain exact records proving which circuits were tested and when. TM UK Group handles this entirely, providing comprehensive rolling asset registers and partial EICR certificates annually.
How We Implement Your Rolling Strategy
Switching to a phased testing model requires advanced technical planning. TM UK Group acts as your dedicated compliance partner to map out the entire lifecycle of your installation.
1. Initial Site Mapping
We conduct an initial survey to map your entire electrical infrastructure, dividing the site into 5 logical, manageable zones based on operational criticality and distribution networks.
2. Annual Execution
Each year, we arrive to test the designated 20%. We handle the scheduling, liaise with department heads to organize localized shutdowns, and execute the testing smoothly.
3. Dynamic Documentation
After each visit, you receive a certified report for that specific zone, along with an updated master compliance document showing your progress toward the 100% cycle completion.
Take Control of Your Compliance Budget
Stop letting massive EICR projects disrupt your business. Partner with TM UK Group to structure a seamless, cost-effective phased testing strategy for your facility.