Perfformiad technegol
| Prawf pwysau amledd pŵer gwlyb (awyr agored) | 54kV, 5 munud |
| Prawf pwysau amledd pŵer cyflwr sych (dan do) | 54kV, 5 munud |
| Prawf pwysau effaith | ±125kV/10 gwaith |
| Prawf foltedd gwrthsefyll DC | 96kV/30 munud |
| Prawf foltedd gwrthsefyll amledd pŵer | 48kV 4 awr |
| Prawf rhyddhau rhannol | ≤10Pc (1.73U₀) |
Crebachu oer craidd sengl 20kVategolion ceblenw cynnyrch a model manyleb
| Math o atodiad | Manyleb y cebl (mm²) | Manyleb a model | |
|
Cebl craidd sengl | Terfynell dan do un craidd | 35-70 | NSY-20/1.1 |
| 95-150 | NSY-20/1.2 | ||
| 185-400 | NSY-20/1.3 | ||
| 500-630 | NSY-20/1.4 | ||
| Terfynell awyr agored un craidd | 35-70 | WSY-20/1.1 | |
| 95-150 | WSY-20/1.2 | ||
| 185-400 | WSY-20/1.3 | ||
| 500-630 | WSY-20/1.4 | ||
| Cysylltydd canolradd craidd sengl | 35-70 | JSY-20/1.1 | |
| 95-150 | JSY-20/1.2 | ||
| 185-400 | JSY-20/1.3 | ||
| 500-630 | JSY-20/1.4 | ||
|
Cebl tair craidd | Terfynell dan do tair craidd | 35-70 | NSY-20/3.1 |
| 95-150 | NSY-20/3.2 | ||
| 185-400 | NSY-20/3.3 | ||
| 500-630 | NSY-20/3.4 | ||
| Terfynell awyr agored tair craidd | 35-70 | WSY-20/3.1 | |
| 95-150 | WSY-20/3.2 | ||
| 185-400 | WSY-20/3.3 | ||
| 500-630 | WSY-20/3.4 | ||
| Cysylltydd canol tair craidd | 35-70 | JSY-20/3.1 | |
| 95-150 | JSY-20/3.2 | ||
| 185-400 | JSY-20/3.3 | ||
| 500-630 | JSY-20/3.4 |