Re: [PSUBS-MAILIST] ABS Changes

["Alan James" <alanjames@xtra.co.nz>]

Thanks for keeping us up to speed on ABS Jon.
The additions don't seem too unreasonable.
Alan


----- Original Message ----- 
From: "Jon Wallace" <jonw@psubs.org>
To: <personal_submersibles@psubs.org>
Sent: Saturday, November 21, 2009 2:08 AM
Subject: Re: [PSUBS-MAILIST] ABS Changes


> A few excerpts below which should be interesting to a number of folks. 
> The document is definitely worth a thorough reading since there is 
> definitely the potential of retrofitting for those of you who want to 
> closely comply with ABS standards for your personal submarines.
>
>
> Submersibles carrying more than six persons are to be fitted with at least 
> two access hatches.
>
> All hatches are to be operable from both internal and external sides.
>
> Means are to be provided for equalizing pressure on each side of a hatch 
> prior to hatch opening.
>
> Submersibles are to be fitted with permanent nameplates indicating the 
> design depth, maximum allowable working pressures/temperatures, 
> hydrostatic test pressure, pressure hull manufacturer’s name, serial 
> number, and year built. The nameplates are to be stainless steel or other 
> suitable material and are to be permanently attached. This information is 
> also to be stamped on a rim of a flange of the unit.
>
> Permanent features for the attachment of recovery equipment are to be 
> provided.
>
> The quantity of water in the (hard) ballast tanks, along with their 
> internal pressure, must be indicated at all times at the vehicle pilot 
> stand.
>
> Sections 23.3 and 23.5 (pertain to motor thru-hull shaft requirements)
>
> Section 25: Navigational Equipment (lots of new requirements here)
>
> Section 27 Communication Systems
>
> Section 29 Emergency Locating Devices
>
> All submersibles are to be provided with fire detection, alarm and 
> extinguishing systems.
> Saltwater is not to be used as an extinguishing agent.
>
> Submersibles are to be provided with equipment to generate, monitor and 
> maintain
> suitable life support conditions inside the manned compartment.
>
> When the battery compartment is located inside the submersible, a fan or 
> similar device
> is to be provided for positive ventilation of the compartment during 
> charging and for a
> suitable time before and after charging.
>
>
>
>
>
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603-529-1100
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