Elias knew he couldn't just guess the ventilation needs. He turned to the , a document specifically written for the temperature-rise assessment of low-voltage switchgear and controlgear by calculation.
| Method | Document | Applicability | Accuracy | Complexity | | :--- | :--- | :--- | :--- | :--- | | Physical Testing | IEC 61439-1 | All assemblies | High | Very High (Costly) | | | Technical Report | PTTA, simple enclosures | Medium | Low (Tables) | | IEC TR 60891 | Technical Report | Temperature correction for PV devices | Specific to solar | Medium | | CFD Simulation | N/A | Any complex design | Very High | Very High (Software) | iec tr 60890 pdf
Elias knew he couldn't just guess the ventilation needs. He turned to the , a document specifically written for the temperature-rise assessment of low-voltage switchgear and controlgear by calculation.
| Method | Document | Applicability | Accuracy | Complexity | | :--- | :--- | :--- | :--- | :--- | | Physical Testing | IEC 61439-1 | All assemblies | High | Very High (Costly) | | | Technical Report | PTTA, simple enclosures | Medium | Low (Tables) | | IEC TR 60891 | Technical Report | Temperature correction for PV devices | Specific to solar | Medium | | CFD Simulation | N/A | Any complex design | Very High | Very High (Software) |