Hi all, If the device is treated as a permanently connected medical device (with auxiliary power outlets like, say a ventilator might), then perhaps it may be tested under AS3551, which allows:
"B8.1 (General) ...In the performance of these tests on Class I equipment during acceptance testing, where instances are encountered of exposed metal that appears to be inadequately earthed, ...consultation shall occur with the manufacturer to determine if this is an intended outcome of the design." Whether the earth pin counts as "exposed metal" in this context, and whether the auxiliary outlets are sufficiently labelled etc. may be debatable. Regards, Michael C. Smith, PhD Service Manager - Central Australia Medical Equipment Management Australia Pty Ltd Ph - 08 8951 7883 Mob - 0418 446 988 The information contained in this message is confidential and may be legally privileged. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, dissemination, or reproduction is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -----Original Message----- From: bmelist-boun...@bme.asn.au [mailto:bmelist-boun...@bme.asn.au] On Behalf Of Michael Flood Sent: Tuesday, 24 January 2017 8:57 AM To: Trevor Riessen; 'Porter, John R (THS)' Cc: bmelist@bme.asn.au Subject: Re: [bmelist] Trumpf Pendants Good morning all I think it's questionable whether they are a medical device, but if the manufacturer believes they are and includes them on the ARTG, then so be it. However, just because they believe the pendants are a medical device, that certainly does not exclude them from the requirements of AS/NZS3003, regardless of what the company may think. 3003 is all about ensuring the safety of the environment, and compliant earthing is a part of that. Regards Michael Flood Principal Locus Consulting Pty Ltd Email: m...@locusconsulting.net.au Phone: +61 (0)2 6112 8325 Mob: +61 (0)40 1147 605 -----Original Message----- From: bmelist-boun...@bme.asn.au [mailto:bmelist-boun...@bme.asn.au] On Behalf Of Trevor Riessen Sent: Tuesday, January 24, 2017 9:34 AM To: Porter, John R (THS) <john.por...@ths.tas.gov.au> Cc: bmelist@bme.asn.au Subject: Re: [bmelist] Trumpf Pendants Hi John While I am not familiar with the Trumpf brand, (interesting resemblance to TRUMP), and I am not aware if the connection between the EPJ and the top of the pendent is compliment, I do agree with your interpretation for a second connection to the metal surrounds. Does the pendant itself have TGA approval as a medical device? We had similar issues with the earthing of Stryker pendant, signal outlet metal surrounds, but were advised that as they had TGA approval as a medical device it was outside the scope of 3003:2011. (The LV outlets did however comply in that pendent, and I believe they were still within the scope of 3003) I would be checking out the compliance of connections at the top of the pendent and earthing conductors/connections within the pendent? Good luck Trevor Riessen Sent from my iPhone > On 24 Jan 2017, at 7:32 am, Porter, John R (THS) <john.por...@ths.tas.gov.au> wrote: > > Hi, > > I'm looking for some feedback on Trumpf pendants, the ones we have are > a TruPort Supply Unit. > > The issue we are finding is that it is difficult to get the earth in > the socket outlet to pass AS/NZS 3003:2011 value required of 0.1 ohm. > > Has anyone else experienced this problem? If so how did you improve > the earthing? > > Also the way the socket outlets are earthed don't appear to me to meet > the requirements of AS/NZS 3003:2011 page 42 Figure 10. Only one earth has been used to earth the socket outlet and the metal surround that holds the socket outlet. To me the socket outlet modules in the pendant contact structural steel through the metal in the pendant, therefore there should be an earth from EP junction to the socket outlet earth and a separate earth from the EP junction to the metal surround that holds the socket outlet. > > Please correct me if my interpretation is wrong. Any advice would be appreciated. > > > Regards, > > John > > > John Porter > Team Leader Engineering Services > Building & Engineering > Launceston General Hospital > > Mob: 0419146979 > Ph: 03 67776433 > Fx: 03 6348 7430 > > Email: john.por...@ths.tas.gov.au<mailto:john.por...@ths.tas.gov.au> > > > > ________________________________ > > CONFIDENTIALITY NOTICE AND DISCLAIMER > The information in this transmission may be confidential and/or > protected by legal professional privilege, and is intended only for the person or persons to whom it is addressed. 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