Aldis light

[NickParker]

Aldis light is connected only to emergency power (230V AC); which is then connected to 230VAC to 24V DC converter to the aldis light; also charging the batteries.
Does it comply to solas requirement? as the Solas say "aldis light shall not solely dependent on ships power".

 

[waross]

Googling "Aldis Lamp"I came across this;
"The daylight signallight CXD8 signalling lantern fulfils the requirements of the SOLAS (1997) Regulations, which states that "all ships of over 150 tons gross tonnage, when engaged on International voyages, shall have onboard an efficient daylight signalling lamp which shall not be solely dependant upon the ship’s main source of electrical power"."
If that is an accurate quote of the regulations, you are probably in compliance.

also charging the batteries.

Is the Aldis lamp powered by the batteries?
Again, not the main source of electrical power.
Tug may give the final word.

 

[TugboatEng]

We put a lot of random frames and baffles in our boats so that they stay under 150 tons. I admit that I know little about SOLAS vessels.

I do agree that if your ship's primary power is 230V with generators and you have a 24V system that is backed up by battery that should be considered not solely dependent on the main source of power. That works for our Sub M boats. However, if you have an emergency diesel generator (Sub M doesn't), it may be required that your 24V power supply is able to be powered by the emergency switchboard.