Changes to PAT Testing

The main change to the IET code of Practice is the transition from Portable Appliance Testing (PAT) to Electrical Equipment Testing (EET) to reflect a broader scope of equipment than just ‘portable appliances’, and the adoption of a risk-based, rather than a purely time-based, inspection strategy.  The 5th Edition of the code emphasises risk assessment based n equipment type, use and environment, and has updated specific test limits, such as protective and touch leakage limits.

Key Changes: 

Name Change – PAT to EET

The term ‘Portable Appliance Testing’ has been replaced with ‘Electrical Equipment Testing’ to include fixed and stationary equipment such as fridges and microwaves, not just items with a plug. 

Shift to Risk-Based Approach

Instead of fixed inspection frequencies, the updated Code of Practice emphasises risk assesment to determine how often inspections are needed. 

Broader Scope of Equipment:

The new approach includes not just portable appliances but also any mains-powered electrical equipment, regardless of whether it is fixed in place or intended to be portable. 

Updated Test Details

The 5th Edition introduces new test sequences and updated limits for protective and touch leakage tests, with increased limits to 5mA. 

Focus on Context use

The Code now places greater emphasis on the context of equipment use, considering the environment and the user’s skill. 

Definitions for Testers

The 5th Edition provides clearer definitions for those carrying out inspections and testing to ensure competency.

What This Means for You

Broader Coverage

Your testing regime should now cover all electrical equipment, not just those with plugs and that are easily moved.

Risk Assessment is Key 

You’ll need to implement a risk assessment process to decide the frequency of inspections, moving away from solely relying on standard intervals. 

Updated Equipment 

Your testing equipment should be able to perform the new tests and sequences outlined in the 5th Edition. 

Competent Personnel

Ensure that the individuals performing inspections and tests are competent and understand the updated guidelines.