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Groups > sci.electronics.design > #461639 > unrolled thread
| Started by | RBlack <news@rblack01.plus.com> |
|---|---|
| First post | 2017-05-25 13:05 +0100 |
| Last post | 2017-05-31 09:37 -0700 |
| Articles | 8 on this page of 88 — 25 participants |
Back to article view | Back to sci.electronics.design
Medical devices and US 220V electrics RBlack <news@rblack01.plus.com> - 2017-05-25 13:05 +0100
Re: Medical devices and US 220V electrics Winfield Hill <hill@rowland.harvard.edu> - 2017-05-25 05:55 -0700
Re: Medical devices and US 220V electrics upsidedown@downunder.com - 2017-05-25 17:26 +0300
Re: Medical devices and US 220V electrics Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2017-05-25 10:27 -0400
Re: Medical devices and US 220V electrics George Herold <gherold@teachspin.com> - 2017-05-25 08:39 -0700
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-25 12:40 -0400
Re: Medical devices and US 220V electrics Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-25 15:03 +0000
Re: Medical devices and US 220V electrics upsidedown@downunder.com - 2017-05-25 20:09 +0300
Re: Medical devices and US 220V electrics RBlack <news@rblack01.plus.com> - 2017-05-25 16:56 +0100
Re: Medical devices and US 220V electrics Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-25 16:42 +0000
Re: Medical devices and US 220V electrics upsidedown@downunder.com - 2017-05-25 20:38 +0300
Re: Medical devices and US 220V electrics whit3rd <whit3rd@gmail.com> - 2017-05-25 10:48 -0700
Re: Medical devices and US 220V electrics Neon John <no@never.com> - 2017-05-28 15:48 -0400
Re: Medical devices and US 220V electrics rickman <gnuarm@gmail.com> - 2017-05-29 01:08 -0400
Re: Medical devices and US 220V electrics Cursitor Doom <curd@notformail.com> - 2017-05-25 17:51 +0000
Re: Medical devices and US 220V electrics upsidedown@downunder.com - 2017-05-25 21:25 +0300
Re: Medical devices and US 220V electrics "Tom Del Rosso" <fizzbintuesday@that-google-mail-domain.com> - 2017-05-26 11:55 -0400
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-26 17:38 -0400
Re: Medical devices and US 220V electrics "Tom Del Rosso" <fizzbintuesday@that-google-mail-domain.com> - 2017-05-26 20:32 -0400
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-26 22:20 -0400
Re: Medical devices and US 220V electrics "Tom Del Rosso" <fizzbintuesday@that-google-mail-domain.com> - 2017-05-27 00:33 -0400
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-27 09:37 -0400
Re: Medical devices and US 220V electrics legg <legg@nospam.magma.ca> - 2017-05-25 12:07 -0400
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-25 12:49 -0400
Re: Medical devices and US 220V electrics Neon John <no@never.com> - 2017-05-28 15:56 -0400
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-28 16:59 -0400
Re: Medical devices and US 220V electrics upsidedown@downunder.com - 2017-05-30 12:37 +0300
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-30 17:41 -0400
Re: Medical devices and US 220V electrics gregz <zekor@comcast.net> - 2017-05-30 06:58 +0000
Re: Medical devices and US 220V electrics rickman <gnuarm@gmail.com> - 2017-05-25 12:15 -0400
Re: Medical devices and US 220V electrics Jon Elson <jmelson@wustl.edu> - 2017-05-25 15:07 -0500
Re: Medical devices and US 220V electrics John Larkin <jjlarkin@highland_snip_technology.com> - 2017-05-25 13:14 -0700
Re: Medical devices and US 220V electrics Jon Elson <jmelson@wustl.edu> - 2017-05-25 16:34 -0500
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-25 18:47 -0400
Re: Medical devices and US 220V electrics Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2017-05-27 01:46 +0200
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-26 19:53 -0400
Re: Medical devices and US 220V electrics Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2017-05-27 02:05 +0200
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-26 22:21 -0400
Re: Medical devices and US 220V electrics Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2017-05-27 04:25 +0200
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-26 22:33 -0400
Re: Medical devices and US 220V electrics Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2017-05-27 21:48 +0200
Re: Medical devices and US 220V electrics Don Y <blockedofcourse@foo.invalid> - 2017-05-25 11:20 -0700
Re: Medical devices and US 220V electrics Jon Elson <jmelson@wustl.edu> - 2017-05-25 14:57 -0500
Re: Medical devices and US 220V electrics RBlack <news@rblack01.plus.com> - 2017-05-26 12:17 +0100
Re: Medical devices and US 220V electrics tabbypurr@gmail.com - 2017-05-26 04:53 -0700
Re: Medical devices and US 220V electrics Phil Allison <pallison49@gmail.com> - 2017-05-26 06:00 -0700
Re: Medical devices and US 220V electrics rickman <gnuarm@gmail.com> - 2017-05-26 12:05 -0400
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-26 17:51 -0400
Re: Medical devices and US 220V electrics George Herold <gherold@teachspin.com> - 2017-05-26 17:54 -0700
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-26 22:24 -0400
Re: Medical devices and US 220V electrics upsidedown@downunder.com - 2017-05-27 00:52 +0300
Re: Medical devices and US 220V electrics Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-05-26 15:39 -0700
Re: Medical devices and US 220V electrics Neon John <no@never.com> - 2017-05-28 16:34 -0400
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-28 17:26 -0400
Re: Medical devices and US 220V electrics Neon John <no@never.com> - 2017-05-29 12:12 -0400
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-29 14:26 -0400
Re: Medical devices and US 220V electrics Tim Wescott <tim@seemywebsite.really> - 2017-05-29 00:08 -0500
Re: Medical devices and US 220V electrics David Lesher <wb8foz@panix.com> - 2017-05-29 20:24 +0000
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-29 16:37 -0400
Re: Medical devices and US 220V electrics David Lesher <wb8foz@panix.com> - 2017-05-30 16:33 +0000
Re: Medical devices and US 220V electrics Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-30 09:46 -0700
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-30 17:45 -0400
Re: Medical devices and US 220V electrics David Lesher <wb8foz@panix.com> - 2017-05-31 03:31 +0000
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-05-31 17:58 -0400
Re: Medical devices and US 220V electrics Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-01 07:54 +0000
Re: Medical devices and US 220V electrics upsidedown@downunder.com - 2017-06-01 12:49 +0300
Re: Medical devices and US 220V electrics Neon John <no@never.com> - 2017-06-01 10:28 -0400
Re: Medical devices and US 220V electrics Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-01 14:45 +0000
Re: Medical devices and US 220V electrics Neon John <no@never.com> - 2017-06-01 18:47 -0400
Re: Medical devices and US 220V electrics Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-06-01 15:57 -0700
Re: Medical devices and US 220V electrics Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-02 07:21 +0000
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-06-01 18:59 -0400
Re: Medical devices and US 220V electrics David Lesher <wb8foz@panix.com> - 2017-06-03 14:00 +0000
Re: Medical devices and US 220V electrics krw@notreal.com - 2017-06-03 11:19 -0400
Re: Medical devices and US 220V electrics upsidedown@downunder.com - 2017-05-30 01:16 +0300
Re: Medical devices and US 220V electrics tabbypurr@gmail.com - 2017-05-29 22:31 -0700
Re: Medical devices and US 220V electrics Phil Allison <pallison49@gmail.com> - 2017-05-29 23:06 -0700
Re: Medical devices and US 220V electrics tabbypurr@gmail.com - 2017-05-29 23:25 -0700
Re: Medical devices and US 220V electrics Phil Allison <pallison49@gmail.com> - 2017-05-29 23:39 -0700
Re: Medical devices and US 220V electrics tabbypurr@gmail.com - 2017-05-30 00:19 -0700
Re: Medical devices and US 220V electrics rickman <gnuarm@gmail.com> - 2017-05-30 10:40 -0400
Re: Medical devices and US 220V electrics rickman <gnuarm@gmail.com> - 2017-05-30 10:37 -0400
Re: Medical devices and US 220V electrics Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-30 16:58 -0700
Re: Medical devices and US 220V electrics Don Y <blockedofcourse@foo.invalid> - 2017-05-30 22:15 -0700
Re: Medical devices and US 220V electrics Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-31 07:38 -0700
Re: Medical devices and US 220V electrics Don Kuenz <g@crcomp.net> - 2017-05-31 14:05 +0000
Re: Medical devices and US 220V electrics Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-31 07:40 -0700
Re: Medical devices and US 220V electrics Don Y <blockedofcourse@foo.invalid> - 2017-05-31 09:37 -0700
Page 5 of 5 — ← Prev page 1 2 3 4 [5]
| From | rickman <gnuarm@gmail.com> |
|---|---|
| Date | 2017-05-30 10:40 -0400 |
| Message-ID | <ogk031$2ka$2@dont-email.me> |
| In reply to | #462260 |
tabbypurr@gmail.com wrote on 5/30/2017 2:25 AM: > On Tuesday, 30 May 2017 07:06:56 UTC+1, Phil Allison wrote: >> tabby wrote: > >>>> In Europe, the most common sockets are: >>>> 1 x 10 A @230 V (2 kW) >>>> 1 x 16 A @230 V (3 kW) >>>> 3 x 16 A @230/400 V (10 kW) >>> >>> Here (UK) they're mostly 240v 30A with some 240v 20A. >>> >> >> >> ** Standard UK sockets and plugs are rated at 13 amps and the plugs are internally fused as well. >> >> https://www.kenable.co.uk/images/A144FA_MAINS_LEAD_1.jpg >> >> The "ring mains" wiring used means that a given circuit can deliver 30 amps in total. >> >> >> .... Phil > > Yes, if you mean continuous ratings. IRL our ring circuits routinely deliver far above the rated 32A. And a bit naughtily, 30A welders are often run on a 13A plug without problem, as they're not continuous 30A loads. Wouldn't the two circuit use different connectors? Are adapters common? I would think not. -- Rick C
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| From | rickman <gnuarm@gmail.com> |
|---|---|
| Date | 2017-05-30 10:37 -0400 |
| Message-ID | <ogjvs9$2ka$1@dont-email.me> |
| In reply to | #462202 |
David Lesher wrote on 5/29/2017 4:24 PM: > RBlack <news@rblack01.plus.com> writes: > >> Hi, > >> We are working on a medical product, which will draw about 3 kW from the >> mains. This is new territory for us, all our previous products were a >> few hundred watts max so an off-the-shelf auto-ranging PSU with a >> suitable IEC lead was OK for any country in the world. > >> 3 kW is OK for a standard outlet in 220V countries, but for North >> America, Japan etc we are over the limit for a standard 110V outlet. > > This always PO'ed me. I want a real electric snowblower, and > lawnmower. I lust for a British 30A 220V ring socket.... > > But all we have is wimpy circuits providing flea power. > > My only hope is more garages are getting electric car chargers; > lotsakilowatts! I've been looking into the electric car thing and Tesla specs a 240V 50 amp socket which gives 25 MPH charging. I think that is the same size circuit as my backup electric for the heat pump. Chevy has the Bolt, they are not nearly as proactive about the charging issue. I'm not sure what they recommend for charging, but unlike Tesla they don't get involved at all in your installation. -- Rick C
[toc] | [prev] | [next] | [standalone]
| From | Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> |
|---|---|
| Date | 2017-05-30 16:58 -0700 |
| Message-ID | <gh1sic1bg88b0vklqm18rakpk823uuterg@4ax.com> |
| In reply to | #461639 |
On Thu, 25 May 2017 13:05:28 +0100, RBlack <news@rblack01.plus.com>
wrote:
>Hi,
>
>We are working on a medical product, which will draw about 3 kW from the
>mains. This is new territory for us, all our previous products were a
>few hundred watts max so an off-the-shelf auto-ranging PSU with a
>suitable IEC lead was OK for any country in the world.
>
>3 kW is OK for a standard outlet in 220V countries, but for North
>America, Japan etc we are over the limit for a standard 110V outlet.
>
>I only know as much about US electrical installations as I've read, a
>bit of Googling suggests the product will need a NEMA 6-15 220V outlet.
>But how common are these in hospitals? Anybody have any experience of
>this stuff?
>
>It has been suggested (not by me I hasten to add) that we split the
>loads within the product up and give it two 110V inlets, to get around
>the customer having to install a 'special' outlet for it. This sounds
>like a Really Bad Idea and a regulatory nightmare to me, so if 220V
>outlets are commonly available anyway I can shoot it down before it gets
>too far.
>
>TIA
This medical device...
<http://www.analog-innovations.com/SED/Wee_Bit_More_Than_3kW.jpg>
is at Ironwood Cancer and Research Centers.
I don't believe it plugs into an outlet >:-}
I visit it daily for 15 minutes to get my dose of RAD's. In fact the
form on the table is my personal molded shoulder and head restraint so
I don't try to move ;-)
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
Thinking outside the box... producing elegant solutions.
"It is not in doing what you like, but in liking what you do that
is the secret of happiness." -James Barrie
[toc] | [prev] | [next] | [standalone]
| From | Don Y <blockedofcourse@foo.invalid> |
|---|---|
| Date | 2017-05-30 22:15 -0700 |
| Message-ID | <ogljc1$5nd$2@dont-email.me> |
| In reply to | #462358 |
On 5/30/2017 4:58 PM, Jim Thompson wrote: > I visit it daily for 15 minutes to get my dose of RAD's. In fact the > form on the table is my personal molded shoulder and head restraint so > I don't try to move ;-) And, does your WIFE know about these kinky rendezvous? :>
[toc] | [prev] | [next] | [standalone]
| From | Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> |
|---|---|
| Date | 2017-05-31 07:38 -0700 |
| Message-ID | <a9lticlv2gqgt9ngbpugidnur1a2oc5d3e@4ax.com> |
| In reply to | #462394 |
On Tue, 30 May 2017 22:15:58 -0700, Don Y
<blockedofcourse@foo.invalid> wrote:
>On 5/30/2017 4:58 PM, Jim Thompson wrote:
>> I visit it daily for 15 minutes to get my dose of RAD's. In fact the
>> form on the table is my personal molded shoulder and head restraint so
>> I don't try to move ;-)
>
>And, does your WIFE know about these kinky rendezvous? :>
(;-}
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
Thinking outside the box... producing elegant solutions.
"It is not in doing what you like, but in liking what you do that
is the secret of happiness." -James Barrie
[toc] | [prev] | [next] | [standalone]
| From | Don Kuenz <g@crcomp.net> |
|---|---|
| Date | 2017-05-31 14:05 +0000 |
| Message-ID | <201700531a@crcomp.net> |
| In reply to | #462358 |
Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote: > On Thu, 25 May 2017 13:05:28 +0100, RBlack <news@rblack01.plus.com> > wrote: > >>Hi, >> >>We are working on a medical product, which will draw about 3 kW from the >>mains. This is new territory for us, all our previous products were a >>few hundred watts max so an off-the-shelf auto-ranging PSU with a >>suitable IEC lead was OK for any country in the world. >> >>3 kW is OK for a standard outlet in 220V countries, but for North >>America, Japan etc we are over the limit for a standard 110V outlet. >> >>I only know as much about US electrical installations as I've read, a >>bit of Googling suggests the product will need a NEMA 6-15 220V outlet. >>But how common are these in hospitals? Anybody have any experience of >>this stuff? >> >>It has been suggested (not by me I hasten to add) that we split the >>loads within the product up and give it two 110V inlets, to get around >>the customer having to install a 'special' outlet for it. This sounds >>like a Really Bad Idea and a regulatory nightmare to me, so if 220V >>outlets are commonly available anyway I can shoot it down before it gets >>too far. >> >>TIA > > This medical device... > > <http://www.analog-innovations.com/SED/Wee_Bit_More_Than_3kW.jpg> > > is at Ironwood Cancer and Research Centers. > > I don't believe it plugs into an outlet >:-} > > I visit it daily for 15 minutes to get my dose of RAD's. In fact the > form on the table is my personal molded shoulder and head restraint so > > I visit it daily for 15 minutes to get my dose of RAD's. In fact the > form on the table is my personal molded shoulder and head restraint so > I don't try to move ;-) That reminds me of my first job in the industry. We built CAT scanners as shown by the renderings on this page: http://www.preferredpacsconsulting.com/ContactUs.html The rendering in the left panel shows the operator's table. The rightmost device on it is a plain old camera for snapping pictures. Our CAT scanner used 220V. That said, the room that housed it was custom built for it. The room that houses your medical device was probably also custom built for it. Thank you, -- Don Kuenz KB7RPU
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| From | Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> |
|---|---|
| Date | 2017-05-31 07:40 -0700 |
| Message-ID | <vclticthik09gv9af6kfi9hpto1nrrd9qv@4ax.com> |
| In reply to | #462418 |
On Wed, 31 May 2017 14:05:25 -0000 (UTC), Don Kuenz <g@crcomp.net>
wrote:
>
>Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>> On Thu, 25 May 2017 13:05:28 +0100, RBlack <news@rblack01.plus.com>
>> wrote:
>>
>>>Hi,
>>>
>>>We are working on a medical product, which will draw about 3 kW from the
>>>mains. This is new territory for us, all our previous products were a
>>>few hundred watts max so an off-the-shelf auto-ranging PSU with a
>>>suitable IEC lead was OK for any country in the world.
>>>
>>>3 kW is OK for a standard outlet in 220V countries, but for North
>>>America, Japan etc we are over the limit for a standard 110V outlet.
>>>
>>>I only know as much about US electrical installations as I've read, a
>>>bit of Googling suggests the product will need a NEMA 6-15 220V outlet.
>>>But how common are these in hospitals? Anybody have any experience of
>>>this stuff?
>>>
>>>It has been suggested (not by me I hasten to add) that we split the
>>>loads within the product up and give it two 110V inlets, to get around
>>>the customer having to install a 'special' outlet for it. This sounds
>>>like a Really Bad Idea and a regulatory nightmare to me, so if 220V
>>>outlets are commonly available anyway I can shoot it down before it gets
>>>too far.
>>>
>>>TIA
>>
>> This medical device...
>>
>> <http://www.analog-innovations.com/SED/Wee_Bit_More_Than_3kW.jpg>
>>
>> is at Ironwood Cancer and Research Centers.
>>
>> I don't believe it plugs into an outlet >:-}
>>
>> I visit it daily for 15 minutes to get my dose of RAD's. In fact the
>> form on the table is my personal molded shoulder and head restraint so
>>
>> I visit it daily for 15 minutes to get my dose of RAD's. In fact the
>> form on the table is my personal molded shoulder and head restraint so
>> I don't try to move ;-)
>
>That reminds me of my first job in the industry. We built CAT scanners
>as shown by the renderings on this page:
>
>http://www.preferredpacsconsulting.com/ContactUs.html
>
>The rendering in the left panel shows the operator's table. The
>rightmost device on it is a plain old camera for snapping pictures.
>
>Our CAT scanner used 220V. That said, the room that housed it was custom
>built for it. The room that houses your medical device was probably also
>custom built for it.
>
>Thank you,
The _door_ is six inches thick !!
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
Thinking outside the box... producing elegant solutions.
"It is not in doing what you like, but in liking what you do that
is the secret of happiness." -James Barrie
[toc] | [prev] | [next] | [standalone]
| From | Don Y <blockedofcourse@foo.invalid> |
|---|---|
| Date | 2017-05-31 09:37 -0700 |
| Message-ID | <ogmra5$bil$1@dont-email.me> |
| In reply to | #462418 |
On 5/31/2017 7:05 AM, Don Kuenz wrote: > Our CAT scanner used 220V. That said, the room that housed it was custom > built for it. The room that houses your medical device was probably also > custom built for it. SWMBO used to track expenses in "Facilities Management" at a local hospital. They are *always* building rooms for things. Or, building NEW rooms as they reshuffle the various bits of equipment. Amazing how much money is expended just to "tread water"! A close friend worked there, as well. When one of the <mumble> rooms was torn apart, he rescued the *lead* that was used to line the walls. That's a *lot* of lead! It now finds itself being propelled from the barrels of various weapons (i.e., as he casts the bullets for his "reloads").
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