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Alan,
My design depth is 600 ft. Operating depth is 300
ft. Therefore required test depth would be 375 ft. Failure depth
must be slightly deeper than 600 ft.
What test depth would you consider to be best based on the
above? I would have thought 400 ft. which isn't much more than
the standard. We had an online discussion of this in early
October. I'll forward my last post which includes the comments of
others.
Thanks,
Jim
In a message dated 12/9/2010 2:45:05 P.M. Central Standard Time,
alanjames@xtra.co.nz writes:
Thanks,
that's a lot smaller margin than I thought, or would be
happy with myself.
Alan
----- Original Message -----
From: "Jon
Wallace" <jonw@psubs.org>
To:
<personal_submersibles@psubs.org>
Sent: Friday, December 10, 2010
2:25 AM
Subject: Re: [PSUBS-MAILIST] Design depth
>
>
I believe for certification ABS requires the sub to be tested to 25%
>
above its maximum operating depth. So if your max op depth is 100 feet
> they would require it to pass testing at 125 feet.
>
>
On 12/9/2010 2:44 AM, Alan James wrote:
>> Does ABS or ASME state
what your operational depth should be in
>> relation to your crush
depth?
>> & if so is this different for the view
ports.
>> I've read with fiberglass there is a 4x safety factor where
human life
>> is concerned.
>> Alan
>
>
>
>
>
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