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Subject 61010-1

October 12, 2007

SUMMARY OF TOPICS

The following changes in requirements are being proposed:

1. Correction of the time for oven conditioning test in Clause 10.5.3 to match IEC61010-1.

2. Replacement of references to IEC 61010-2-041, IEC 61010-2-042, IEC 61010-2-043, and

IEC 61010-2-045 with a reference to IEC 61010-2-040 in Annex DV US.

STP BALLOTS AND ALL COMMENTS DUE: November 12, 2007

For your convenience in review, proposed additions to existing requirements are shown underlined andproposed deletions are shown lined-out.

1. Correction of the time for oven conditioning test in Clause 10.5.3 to match IEC 61010-1.

RATIONALE

Proposal submitted by: Steven Brown, Underwriters Laboratories Inc.

Clause 10.5.3 references a 7 hr oven conditioning test; however, the actual IEC 61010-1 text specifies

1 hr. It is proposed that this error be corrected in the UL standard to reflect current practice.

PROPOSAL

10.5.3 Insulating material

Insulating material shall have adequate resistance to heat.

a) Parts that are made of insulating material, and which are used to support other parts that

are connected to the MAINS supply, shall be made of insulating materials that will not cause aHAZARD if short circuits occur inside the equipment.

b) If in NORMAL USE, TERMINALS carry a current exceeding 0,5 A and if substantial heat could be

dissipated in case of poor contact, the insulation which supports the TERMINALS shall be made ofmaterial that will not soften to an extent that could cause a HAZARD or further short circuits.

In case of doubt, conformity is checked by examination of material data. If the material data is not

conclusive, one of the following tests is performed.

1) A sample of the insulating material, at least 2,5 mm thick, is subjected to a ball-pressure testusing the test apparatus of figure 8. The test is made in a heating cabinet at the temperature

measured as specified in 10.3 d) or 10.3 e) 2 C, or at 125 C 2 C, whichever is higher.The part to be tested is supported so that its upper surface is horizontal, and the spherical part

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of the apparatus is pressed against this surface with a force of 20 N. After 7 1 h the apparatusis removed and the sample is cooled within 10 s to approximately room temperature byimmersion in cold water. The diameter of the impression caused by the ball shall not exceed 2

mm.

NOTE 1 If necessary, the required thickness may be obtained by using two or more sections of the

part.

NOTE 2 For bobbins, only those parts that support or retain TERMINALS in position are subjected to the

test.

2) The Vicat softening test of IS0 306, method A. The Vicat softening temperature shall be atleast 130 C.

2. Replacement of references to IEC 61010-2-041, IEC 61010-2-042, IEC 61010-2-043, and IEC61010-2-045 with a reference to IEC 61010-2-040 in Annex DV US.

RATIONALE

Proposal submitted by: Steven Brown, Underwriters Laboratories Inc.

The First Edition of IEC 61010-2-040, Safety requirements for electrical equipment for measurement,control and laboratory use Part 2-040: Particular requirements for sterilizers and washer-disinfectors

used to treat medical materials was published to supersede IEC 61010-2-041, IEC 61010-2-042, IEC61010-2-043, and IEC 61010-2-045. It is proposed that Annex DV US be updated to reflect this newstandard. The requirements for these standards have only been consolidated into one standard, therequirements have not changed.

PROPOSAL

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Annex DV US(normative)

US adoption of particular requirements

As noted in the INTRODUCTION, the requirements in UL 61010-1 specify requirements that are generallyapplicable to all equipment within its scope. For certain equipment, these requirements will be

supplemented or modified by the special requirements of one, or more than one, particular part 2 of theIEC standard, which must be read in conjunction with the part 1 requirements. For the US, these part 2standards are the versions of the IEC part 2 standards without the US National Differences, current at thetime of publication of this annex. The following is a list of the IEC 61010-1 particular part 2s that are tobe used in conjunction with the part 1 standard for equipment that falls within their scopes.

IEC 61010-2-010,Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-010:Particular Requirements for Laboratory Equipment for the Heating of Materials: Second Edition

IEC 61010-2-020,Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-020:Particular Requirements for Laboratory Centrifuges: First Edition

IEC 61010-2-020-am1,Amendment 1: Safety Requirements for Electrical Equipment for Measurement, Control, and LaboratoryUse, Part 2-020: Particular Requirements for Laboratory Centrifuges

IEC 61010-2-032,Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-032:Particular Requirements for Hand-Held and Hand-Manipulated Current Sensors for Electrical Test andMeasurement: Second Edition

IEC 61010-2-040,Safety requirements for electrical equipment for measurement, control and laboratory use Part 2-040:Particular requirements for sterilizers and washer-disinfectors used to treat medical materials: First Edition

IEC 61010-2-041,Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-041:Particular Requirements for Autoclaves Using Steam for the Treatment of Medical Materials, and forLaboratory Processes: First Edition

IEC 61010-2-042,Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-042:Particular Requirements for Autoclaves and Sterilizers Using Toxic Gas for the Treatment of Medical

Materials, and for Laboratory Processes: First Edition

IEC 61010-2-043,

Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-043:Particular Requirements for Dry Heat Sterilizers Using Either Hot Air or Hot Inert Gas for the Treatmentof Medical Materials, and for Laboratory Processes: First Edition

IEC 61010-2-045,

Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-045:Particular Requirements for Washer Disinfectors Used in Medical, Pharmaceutical, Veterinary andLaboratory Fields: First Edition

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IEC 61010-2-051,Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-051:Particular Requirements for Laboratory Equipment for Mixing and Stirring: Second Edition

IEC 61010-2-061,Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-061:

Particular Requirements for Laboratory Atomic Spectrometers with Thermal Atomization and Ionization:Second Edition

IEC 61010-2-081,Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-081:

Particular Requirements for Automatic and Semi-Automatic Laboratory Equipment for Analysis and OtherPurposes: First Edition

IEC 61010-2-081-am1,

Amendment 1: Safety Requirements for Electrical Equipment for Measurement, Control, and LaboratoryUse, Part 2-081: Particular Requirements for Automatic and Semi-Automatic Laboratory Equipment forAnalysis and Other Purposes

IEC 61010-2-101,Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 2-101:Particular Requirements for in Vitro Diagnostic (IVD) Medical Equipment: First Edition

Copyright 2007 Underwriters Laboratories Inc.

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