| Standardization field | Electrical engineering
 | 
| Technical committee | BAS/TC 8- Insulation co-ordination, high-voltage testing and instrument transformers | 
| Term (EN) | major defect | 
| Definition (EN) | A defect, other than critical, that is likely to result in failure, or to
reduce materially the usability of the unit of product for its intended purpose | 
| Term (FR) |  | 
| Definition (FR) |  | 
| Term (DE) |  | 
| Definition (DE) |  | 
| Term (BS) | veći nedostatak | 
| Definition (BS) | Nedostatak koji nije kritičan, a koji će vjerovatno rezultirati otkazivanjem u radu ili će
materijalno smanjiti upotrebljivost jedinice proizvoda za svrhe za koje je namijenjen | 
| Term (HR) |  | 
| Definition (HR) |  | 
| Term (SR) |  | 
| Definition (SR) |  | 
| Date | 2016-03-03 | 
| Standards | BAS EN 61235:2002 | 
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