From: jeff collins
Sent: Friday, July 13, 2007 5:00 PM
Can anyone recommend a Transformer manufacturer that makes
custom medical grade transformers?
Speaking of on-line databases, try searching on UL's category named
Transformers, Construction Only - Component (XORU2). Add a keyword
List Members,
Can anyone recommend a Transformer manufacturer that makes custom medical
grade transformers?
We will obviously need to get this component Approved/Listed/Certified and
want to work with a vendor that is established and reputable in handling
agency listings and manufacturing
Hi Ged:
In transformers with REINFORCED INSULATION or DOUBLE INSULATION the
insulation between 1ary and 2ary windings shalll consist of -
- 1 insulation layer having thickness at least 1mm, or
- at least 2 insulation layers with total thickness not less than 0.3mm, or
- 3
Regarding my query on medical equipment transformer construction
(EN-60601-1, clause 57.9.4(e)), can I be a bit more specific.
- How were insulation thickness requirements decided, and why is the
thickness requirement lower if insulation is 2-layer rather than
single-layer ?.
- Why are
-Original Message-
From: Dean Gerard (gdean) [mailto:gd...@ncht.trent.nhs.uk]
Sent: Monday, July 29, 2002 9:29 AM
To: 'emc-p...@majordomo.ieee.org'
Subject: medical-grade transformers
With regard to transformer construction, CLAUSE-57.9.4(e) of EN-60601-1
General Requirements
With regard to transformer construction, CLAUSE-57.9.4(e) of EN-60601-1
General Requirements for Safety of Medical Electrical Equipment requires:-
In transformers with REINFORCED INSULATION or DOUBLE INSULATION the
insulation between 1ary and 2ary windings shalll consist of -
- 1 insulation
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