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Hva er riktig wattstyrke på 12m lanterner?


2xDiesel

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OK, lurte bare på om det var noen regel for dette. Så en plass nå at det stod 18w for intill 12m. I "nærbutikken" her har de 10w og 25w.

 

NB: Sover ikke dårlig på grunn av dette, var bare nyskjerrig :smiley:

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Mener å huske at det er 10W intil 7 meter og 25 watt inntil 12 meter. Dette gjelder samtlige lanterner, ikke bare sidene..

"First they ignore you, then they ridicule you, then they fight you, then you win." - Mahatma Gandhi
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Ja, det er en regel.

 

Denne:

 

(a) The minimum luminous intensity of lights shall be calculated by using the formula:

I = 3.43 x 106 x T x D2 x K-D

where I is luminous intensity in candelas under service conditions,

T is threshold factor 2 x 10 -7 lux,

D is range of visibility (luminous range) of the light in nautical miles,

K is atmospheric transmissivity.

For prescribed lights the value of K shall be 0.8, corresponding to a meteorological visibility of approximately 13 nautical miles.

 

Som jo blir håpløst. Tricoloren i mastetoppen min trekker 4W. Og Bicoloren i baugen trekker 25. Og de har til felles at de synes på 2 nm.

Hver enkelt produsent av lanterner foreskriver hvilke pære som skal brukes.

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