A TTA panel refers to a Type Tested Assembly. This designation is given to electrical switchgear and controlgear assemblies that have undergone and passed specific type tests according to recognized international standards.
Understanding Type Tested Assemblies (TTA)
According to the reference provided, Type tested assemblies (TTA) are electrical panels that conform to a standard providing common rules recognized worldwide. Compliance with this standard is certified, depending on the country or market, by a declaration from the panel builder, the design engineer, the installer, or the user.
Key Characteristics of TTA Panels
- Compliance with Standards: TTA panels adhere to specific design and performance standards, ensuring safety and reliability.
- Worldwide Recognition: The standards governing TTA are recognized globally, facilitating international trade and application.
- Certified Compliance: Certification is typically achieved through self-declaration by the involved parties (builder, designer, installer, user), based on the type tests performed.
- Examples of Application: The reference specifically mentions a Low Voltage Main switchboard located in a transformer area as an example of where TTA standards apply.
Benefits of Using TTA Panels
Utilizing TTA panels offers several advantages:
- Safety Assurance: The rigorous type testing ensures the panel is safe under specified operating conditions.
- Reliability: Panels built to TTA standards are designed for consistent performance and durability.
- Interchangeability: Adherence to common rules can simplify replacement and expansion.
- Global Acceptance: Recognized standards make these panels suitable for diverse markets.
In essence, a TTA panel is an electrical assembly whose fundamental design and performance have been validated through type testing, providing confidence in its safety and reliability according to international standards.
