flame safety lamp meaning in Hindi

Examples

1. Flame safety lamps have been replaced in mining with sealed explosion-proof electric lights.
2. These required Mine Deputies to undertake statutory examinations and to carry flame safety lamps and gas detectors during inspections.
3. By 1886 a lamp with better light output than a flame safety lamp was in production by the Edison-Swan Company.
4. The height of the cone of burning methane in a flame safety lamp can be used to estimate the concentration of the gas in the local atmosphere.
5. A modern-day equivalent of the Davy lamp is the Protector Garforth GR6S flame safety lamp which is used for firedamp testing in all UK coal mines.
6. Although its use as a light source was superseded by electric lighting, the flame safety lamp has continued to be used in mines to detect methane and blackdamp, although many modern mines now also use sophisticated electronic gas detectors for this purpose.