Polystyrene and polyurethane panel wiring


With the increase introduction of polystyrene and polyurethane panelling in general and domestic construction it is worth noting that if wiring a fixed installation with standard TPS there is no rule requiring the use a non-migratory cable.

However, as per AS/NZS 3001.2.2022  Electrical Installations-Connectable Electrical Installations and Supply Arrangements ( Part 2 : Connectable Electrical Installations ), which covers installations such as dongers, caravans and trailers, Clause  specifies the requirement for non-migratory cable to be used.    

When working on a building with Polystyrene and Polyurethane Panels, it's advisable to inform the builder about potential long-term issues that may arise from using standard TPS cable. While non-migratory cable is slightly pricier than standard TPS cable, its usage could prevent future complications.

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