Extra High Pressure Mercury (Vapour) Lamp

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2-3-375

A mercury vapour lamp in which, during operation, the partial pressure of the vapour reaches a very high value, of the order of 106 newtons per square metre (10 atmospheres) or more.

Reference: C.I.E.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

Contrast

Celsius (previously Centigrade)

Capacitance

charge current

Intensity

Illuminance

Energy

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM