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Re: Electrical Safety Testing of BEDS [Re: Geoff Hannis] #73118
Joined: Feb 2004
Posts: 13,492
the path less trodden
Geoff Hannis Offline
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Geoff Hannis  Offline
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the path less trodden

Originally Posted by Geoff Hannis

In other words, how accurate are these predictions?


See here. smile

Re: Electrical Safety Testing of BEDS [Re: iozzie] #73197
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Posts: 379
Philippines
ariel dulay Offline
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ariel dulay  Offline
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Philippines
..what the use of test instrument by the way?


--- PATIENT SAFETY FIRST ---
Re: Electrical Safety Testing of BEDS [Re: Malcolm] #73198
Joined: Feb 2009
Posts: 1,794
Jeddah, Saudi Arabia
Neil Porter Offline
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Neil Porter  Offline
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Healthcare institutes must be single phase, dual phase was, and still is the lazy way to upgrade from 110V to 220V


If you think hiring professionals is expensive, try hiring amateurs!
Re: Electrical Safety Testing of BEDS [Re: Neil Porter] #73199
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Posts: 13,492
the path less trodden
Geoff Hannis Offline
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Geoff Hannis  Offline
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Eh? What about 3-phase (for x-ray systems, etc.)? think

I think what you meant to say there, Neil, was that (in some locations) both 110 and 220 VAC may be taken from a supply transformer in star configuration!

But (and perhaps more importantly in such cases) where is the earth connected?

I have always thought that "two-phase power supplies" was an "American idea". I have only ever encountered them in buildings built to "domestic standards" in places like Saudi Arabia (village clinics, and the like). Only once did I come across a piece of "medical equipment" that actually required a 220 VAC two-phase supply in a proper hospital, and that was an ancient baby milk-bottles sterilizer (I think it was) made in the USA.

Re: Electrical Safety Testing of BEDS [Re: ariel dulay] #73200
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Posts: 13,492
the path less trodden
Geoff Hannis Offline
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Geoff Hannis  Offline
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Originally Posted by ariel dulay

..what the use of test instrument by the way?


Do you mean the 62353 Alternative Method?

For more, see this earlier thread.

You will need an Safety Tester that can accommodate this (has this "feature").

Re: Electrical Safety Testing of BEDS [Re: iozzie] #73202
Joined: Nov 2007
Posts: 112
HPUiTM, Malaysia
M
mammad Offline
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mammad  Offline
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HPUiTM, Malaysia
Going back with the initial queries. In our policy in Malaysia, when we performing PPM inclusive with EST for any medical equipment regardless class 1 or class 2, it shall be isolated from patient. This shall minimize any potential risk exposed to the patient which will lead into severe damage.

Re: Electrical Safety Testing of BEDS [Re: mammad] #73203
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Geoff Hannis Offline
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Geoff Hannis  Offline
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OK, that's the policy. But how do you implement the policy in cases where beds are hardly ever (if at all) vacated?

Are you following 62353 ... and especially, the Alternative Method? think

Re: Electrical Safety Testing of BEDS [Re: Geoff Hannis] #73207
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HPUiTM, Malaysia
M
mammad Offline
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mammad  Offline
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HPUiTM, Malaysia
We never experienced that.

Normally bed, the frequency for the PPM is once a year and bed hardly vacated is normally in ICU.

We still emphasize in 60601 and not yet 62353.

Re: Electrical Safety Testing of BEDS [Re: mammad] #73208
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Jeddah, Saudi Arabia
Neil Porter Offline
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Neil Porter  Offline
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For ICU, ask the head nurse to inform BME when the room becomes vacant, death, theatre procedure or any other service outside of the ICU and PPM all the equipment for that room.


If you think hiring professionals is expensive, try hiring amateurs!
Re: Electrical Safety Testing of BEDS [Re: Neil Porter] #73209
Joined: Feb 2004
Posts: 13,492
the path less trodden
Geoff Hannis Offline
Super Hero
Geoff Hannis  Offline
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Posts: 13,492
the path less trodden

1) Patient goes to Theatre
2) Nurse informs BME
3) BME rushes to ICU
4) Bed fails EST (PPM)
5) Bed has a fault
6) Bed needs extra work
7) Bed needs parts
8) Patient returns
9) What happens next?

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