The Australian Competition and Consumer Commission (ACCC) has again urged residents to have their homes checked by qualified electricians for potentially dangerous Infinity electrical cables.

Thousands of homes are still fitted with the product despite a nationwide recall almost two years ago.

The cables, imported from China, turn prematurely brittle and break when placed under stress near heat sources and roof access areas.

“There is a significant risk of serious injury or death for the many Australians whose households had unsafe Infinity electrical cable installed from 2010 in NSW and 2011 or 2012 elsewhere in Australia,” ACCC Deputy Chairman Delia Rickard said.

“Unless remediated, it is estimated that Infinity cable in NSW will start cracking this year and in other jurisdictions from next year.”

Homeowners who have had electrical work done on their premises since 2010 should have a professional check conducted by the same electrician or builder, the ACCC says.

“You should not attempt to check yourself. If the cable is confirmed as Infinity, the cost of remediation will be covered by the supplier,” Ms Rickard said.

About 2300km of the dangerous cable remains in thousands of homes, exposing residents to potential electric shocks or fires.