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| spark safety | |||
| intrinsic spark-hazard safety | |||
| intrinsic safety (in electrical engineering, technique used to limit electrical energy entering hazardous area to prevent ignition of flammable atmospheres). Alexander Demidov) | |||
| intrinsic safety | |||
| Ex-i (Johnny Bravo) | |||
| IS protection (Orya) | |||
| искробезопасность: 10 phrases in 8 subjects |
| Electrical engineering | 1 |
| Information technology | 1 |
| Makarov | 1 |
| Oil and gas | 3 |
| Quality control and standards | 1 |
| Sakhalin | 1 |
| Technology | 1 |
| Weapons of mass destruction | 1 |