The old concepts of Type-Tested Assemblies (TTA) and Partially Type-Tested Assemblies (PTTA) were discarded. They were replaced by a unified system called . This change ensures that every single assembly is held to the same high standards of safety and performance, regardless of whether it is a standard modular design or a fully customized panel. Split of Responsibilities
The old concepts of Type-Tested Assemblies (TTA) and Partially Type-Tested Assemblies (PTTA) were discarded. They were replaced by a unified system called . This change ensures that every single assembly is held to the same high standards of safety and performance, regardless of whether it is a standard modular design or a fully customized panel. Split of Responsibilities