UL IEC 61010 2nd to 3rd EdItIon CorrELatIon · PDF fileAn easy to use reference guide on changes to UL IEC 61010 and the impact it will have. UL IEC 61010 2nd to 3rd EdItIon CorrELatIon

An easy to use reference guide on changes to UL IEC 61010 and the impact it will have.

UL IEC 61010 2nd to 3rd EdItIon CorrELatIon

As thE CErtIfICAtIon AgEnCy thAt wrItEs thE stAndArds for sAfEty for LAb EqUIpmEnt, UL Is hErE to sUpport yoU throUgh thE trAnsItIon from thE 2nd to 3rd EdItIon of UL IEC 61010

[ 1 ]

sUb CLaUsE dIsCUssIon ImpaCt

Foreword requirements for test and measurement circuits were moved to the standard IEC 61010-2-030.

none — explanatory information only. see changes from 2nd ed to IEC 61010-2-030 below.

Foreword the scope of the standard has been expanded to include all locations where these products may be used, so that both professional and non-professional versions of these products are within the scope.

minor — scope extension primarily based on new particular standards that are coming soon. e.g. Education.

1.1.1 Expanded locations (see above). see above.

1.1.1 a) Added power supplies for laboratory use in the scope of the standard. none — explanatory information only.

1.1.2 Equipment excluded from scope: requirements reference added for IEC 61010-031 (hand-held probe assemblies) and IEC 61243-3 (Live working — voltage detectors — part 3: two-pole low-voltage type). removed IEC 60521.

none — explanatory information only.

1.2.2 Aspects excluded from scope: servicing (repair) and protection of servicing personnel including note removed from the standard.

major — requirements for service and repair in documentation are in clause 5.4.5 and risk assessment Annex J.2.

1.4.1.f normal environmental conditions: applies to conditions of transient overvoltage up to overvoltage Category II. wet locations are specifically mentioned as an extended environmental condition.


1.4.2. g) recognizes that there might be CAt III and CAt IV mains used to power products minor — adds overvoltage Categories to the 3rd edition where previously measurement Categories were used.

1.4.2.f wet locations are mentioned as an extended environmental condition. none — explanatory information only.

2 normative references — Updated to reflect latest standards reference on other clauses.

none — editorial change only.

3.1.1 fIXEd EqUIpmEnt: standard reference changed from [IEV 826-07-07] to [IEC 60050-826:2004, 826-16-07, modified].


3.1.6 dIrECt pLUg-In EqUIpmEnt: nEw dEfInItIon: equipment with a mAIns plug that is attached to the equipment housing without the use of a mAIns supply cord so that the equipment is supported by the mAIns socket-outlet.

minor — term added for mechanical stress testing in clause 8.

3.2.1 tErmInAL: standard reference changed from [IEV 151-01-03] to [IEC 60050-151:2001, 151-12-12, modified].


3.2.4 EnCLosUrE: added note: EnCLosUrEs may also provide protection against the spread of fire (see 9.3.2 c)).


3.2.5 protECtIVE bArrIEr: added the term ”protECtIVE” before the term bArrIEr; added reference to IEC 60050-195:1998; added to the note: it can be used alone or in conjunction with interlocking device; modified the note that barriers can provide protection against the spread of fire.


sUb CLAUsE: forEword – 3.2.5

ChangEs madE From IEC 61010-1 2nd to 3rd EdItIon


[ 2 ]


3.3 qUAntItIEs: title of this section changed from Electrical quantities to just quantities. none — explanatory information only.

3.3.1 rAtEd (value):standard reference changed from IEV 151-04-03 to IEC 60050-151:2001, 151-16-08, modified.


3.3.2 rAtIng: standard reference changed from IEV 151-04-04 to IEC 60050-151:2001, 151-16-11. none — editorial change only.

3.3.3 worKIng VoLtAgE: Added voltage fluctuations as not considered to be part of the working voltage.

none — clarification on current practice.

3.4.1 typE tEst: standard reference changed from IEV 151-04-15 to IEC 60050-151:2001, 151-16-16. none — editorial change only.

3.4.2 roUtInE tEst: rewording of definition. none — editorial change only.

3.5.3 hAZArdoUs LIVE: Clarifies that hazardous live is for both normal and single fault condition.

none — clarification on current practice.

3.5.4 (2nd Ed)

hIgh IntEgrIty: deleted term. none — editorial change only.

3.5.4 mAIns: removed note: notE some measuring circuits may also be connected to the mAIns for measuring purposes.

minor — clarification on current practice.

3.5.5 mAIns CIrCUIt: Changed word "conductively” connected to “directly” connected and removed the notE measuring circuits and circuits that are inductively derived from mAIns CIrCUIts are not mAIns CIrCUIts.


3.5.6 protECtIVE ImpEdAnCE: rewording of definition. none — editorial change only.

3.5.9 normAL CondItIon: note was removed. none — editorial change only.

3.5.10 sIngLE fAULt CondItIon: rewording of definition. none — editorial change only.

3.5.11 opErAtor: note removed. none — editorial change only.

3.5.12 rEsponsIbLE body: removed “ensuring that operators are adequately trained”. none — editorial change only.

3.5.14 rEAsonAbLy forEsEEAbLE mIsUsE: nEw dEfInItIon: “use of a product in a way not intended by the supplier, but which may result from readily predictable human behavior” added for use with new risk Assessment requirements.

minor — see Clause 17.

3.5.15 rIsK: nEw dEfInItIon: “combination of the probability of occurrence of harm and the severity of that harm” added for use with new risk Assessment requirements.


3.5.16 toLErAbLE rIsK: nEw dEfInItIon “rIsK which is accepted in a given context based on the current values of society “ added for use with new risk Assessment requirements.


3.5.17 oVErVoLtAgE CAtEgory: nEw dEfInItIon: “numeral defining a trAnsIEnt oVErVoLtAgE condition (see Annex K)”.

minor — see Annex K.

3.5.18 trAnsIEnt oVErVoLtAgE nEw dEfInItIon: “short duration overvoltage of a few milliseconds or less, oscillatory or non-oscillatory, usually highly damped”; added reference to [IEC 60050-604, Amendment 1:1998, 604-03-13]”.

minor — clarifies definition in accordance with the standard for International Electrotechnical Vocabulary. see Clause 6.7 on Insulation requirements.

sUb CLAUsE: 3.3 – 3.5.18

[ 3 ]


3.5.19 tEmporAry oVErVoLtAgE nEw dEfInItIon: “power frequency overvoltage of relatively long duration”; added reference to [IEC 60050-604, Amendment 1:1998, 604-03-12].

minor –clarifies definition in accordance with the standard for International Electrotechnical Vocabulary. see Clause 6.7 on Insulation requirements.

3.6.1 bAsIC InsULAtIon: Clarifies insulation for hazardous live parts; added reference to [IEC 60050-195:1998, 195-06-06].

minor — clarifies definition in accordance with the standard for International Electrotechnical Vocabulary.

3.6.2 sUppLEmEntAry InsULAtIon: Added reference to IEC 60050-195:1998, 195-06-07, modified].


3.6.3 doUbLE InsULAtIon: Added reference to [IEC 60050-195:1998, 195-06-08]. minor — clarifies definition in accordance with the standard for International Electrotechnical Vocabulary.

3.6.4 rEInforCEd InsULAtIon: Added reference to [IEC 60050-195:1998, 195-06-09, modified].


3.6.6 poLLUtIon dEgrEE: rewording of definition. none — editorial change only.

3.6.9 poLLUtIon dEgrEE 3 : rewording of definition. none — editorial change only.

3.6.10 poLLUtIon dEgrEE 4 : nEw dEfInItIon: “continuous conductivity occurs due to conductive dust, rain or other wet conditions”.

minor — see Annex E.

3.6.12 CrEEpAgE dIstAnCE: standard reference changed from IEV 151-03-37 to IEC 60050-151:2001, 151-15-50.


4.3.2.4 mAIns sUppLy: statement removed: Unless the equipment is specified for use only on a non-earthed mAIns supply, one pole of the reference test supply shall be at or near earth potential.

none

4.3.2.5 removed “Unless the equipment is specified for use only on a non-earthed mAIns supply, one pole of the reference test supply shall be at or near earth potential.”


4.3.2.12 dUty CyCLE: added Equipment for short-term or intermittent operation that develops significant heat during the startup phase, and that relies on continued operation to dissipate that heat, shall also be operated for the shortest rAtEd period followed by the shortest rAtEd recovery period.

major — new requirement in addition to the previously existing duty cycle requirement.

4.4.2.5 Added “one supply phase of any multi-phase motor shall be interrupted while the motor is operating at its intended full load”.

medium — common practice for 2nd edition evaluations, shall be checked during file review.

4.4.2.10.d added loss of cooling liquid shall be simulated. none — correction of 2nd edition error.

sUb CLAUsE: 3.5.19 – 4.4.2.10.d


[ 4 ]


4.4.2.14 Added Voltage selector voltage mismatch test. medium — common practice for 2nd edition evaluations, shall be checked during file review.

4.4.4.2 reference to clause 10 for temperature limits of the enclosure and easily touched parts.

none

5.1.3 c) Added “the marked value shall not be less than 90 % of the maximum value when more than one voltage range can be used but the maximum and minimum values do not differ by more than 20%”.

none — clarifies requirement.

table 1 symbols — IEC reference standards updated to include month and year of the publication. none — editorial change only.

table 1, number 8

removed Equipotentiality symbol. none — editorial change only.

table 1, number 17

Added symbol 17 for ionizing radiation maximum value. minor — if it was applicable, most manufacturers were using this symbol already.

5.1.5.1 general

Added requirement color red and coding of push-buttons and actuators of emergency stop devices (reference IEC 60073).

minor

5.1.5.2 c) removed reference to measuring circuits since these requirements are now in IEC 61010-2-030.


sUb CLAUsE: 4.4.2.14 – 5.1.5.2 c)

[ 5 ]


5.1.5.1 e) (2nd Ed)

rEmoVEd: e) ACCEssIbLE fUnCtIonAL EArth tErmInALs connected to ACCEssIbLE conductive parts. see symbol 8 of table 1.


5.1.5.2 removed words “measuring Circuit” from title of clause. requirements are now in IEC 61010-2-030.


5.1.6 requires that the off-position and optionally the on-position be marked as the disconnecting device for a power supply switch or circuit breaker .

minor — clarifies requirement.

removed requirement that symbols 8, 9 and 10 shall not be used for switches other than the power supply switch.

minor

5.1.7 rewording of clause. none — editorial change only.

5.1.8 modified requirement to allow use of the “Attention — Consult Accompanying documents” symbol in lieu of marking with the minimum temperature rating.

minor

5.4.1 general

removed ”instructions for use.” this is covered in clause 5.4.4. none — editorial change only.

removed: “measurement category” definition since this is now part of IEC 61010-2-030.


Added risk mitigation information. medium — includes all safety information.

Added note that markings and text are equivalent to documentation. minor — clarifies current practice.

Added instructions for lifting and carrying. medium — may required manual changes if applicable.

removed “ CAt I” warning information; replaced with need for risk mitigation information.

medium

Added option to have printed material available in electronic format unless safety necessitates it be provided in print.

minor — clarifies current practice.

5.4.2 b) Added reference to clause 6.6.1 a). none — editorial change only.

5.4.2 c) Added reference to clause 6.6.1 b). none — editorial change only.

5.4.2 f) Added requirements for equipment with an impact rAtIng less than 5 J. see Clause 8.1 d)

medium — may required manual changes if applicable.

5.4.3 g) (2nd Ed)

removed sound power level documentation requirement. none — editorial change only.

5.4.3 i) (2nd Ed)

removed measuring circuit documentation information since this is covered in IEC 61010-2-030. none — editorial change only.

5.4.3 Added a note recommending that the installation documentation state the system assembler is responsible for the safety of the system.

minor — explanatory information only.

5.4.4 j) Added rIsKs of burns from surfaces permitted to exceed the temperature limits of clause 10.1 must be added to documentation.


5.4.4 Added requirement for 60950 equipment used with 61010 equipment with liquid hazards exist, additional instructions must be provided. e.g. 60950 power supply with Lab equipment and there are liquids present.


sUb CLAUsE: 5.1.5.1 e) (2nd Ed) – 5.4.4


[ 6 ]


5.4.5 Added “service” to equipment maintenance requirements. medium — clarifies requirement.

Added instructions on proper replacement of power supply cords. medium — clarifies requirement.

Added instructions for service personnel must be included in documentation. minor — clarifies requirement.

5.4.6 Added requirements in the documentation for special ambient or application conditions and integration into systems must be described.

medium — may required manual changes as applicable.

6.1.1 revised to add information from clause 6.3 of the 2nd edition. none — editorial change only.

6.1.2 removed locking and screw type measuring terminals since this is covered in IEC 61010-2-030. none — editorial change only.

6.2.1 removed 1 kV accessibility requirement. minor

6.2.3 noted added to provide rationale for exception. none — explanatory information only.

6.4.1 solid insulation removed due to requirements in 6.7. Also some reorganization done for clarity. none — editorial change only.

6.4.3 requirements added for impedance used as primary protection medium — new requirement.

6.4.4 requirements added for impedance used as primary means of protection. major — will require testing.

6.5.1 and Fig 4

Added to better describe single fault Conditions requirements. none

6.5.2.2 note on color identification removed. medium — will have to be added as a national deviation .

6.5.2.3 k) this requirement has previously existed but it was not in this subclause. medium — new item, with potentially new evaluation requirement.

6.5.2.4 Added requirement for bonding impedance. now also need 0.2 ohms for equipment with a non detachable power supply cord.

major — will require testing.

6.5.2.6 Added new requirements for protective bonding screen. new test like bonding impedances. Also, solid insulation transformer requirements removed due to new requirements in 6.7.


6.5.4 high-integrity resistors and capacitors are now required to be rated for twice the working voltage. major — new requirement.

6.5.6 new requirement for current and voltage limiting devices. will require measurement and verification of creepage and clearance distances.


6.6.2 removed 1kV accessibility requirement. now in IEC 61010-2-030 none

6.7.1.1 general

serves as an explanation of clearance, creepage and solid insulations, electric stresses originating on mains and the interaction between those and insulations.


6.7.1.4 Added explanation of solid insulation. none — explanatory information only.

6.7.1.5 requirements for insulation by type of circuit can be found in 6.7.2, 6.7.3 and Annex K. none — explanatory information only.

sUb CLAUsE: 5.4.5 – 6.7.1.5

[ 7 ]


6.7.2.1 and table 4

simplified table 4 with only two voltage categories <= 150 and 150 V and <= 300V. Increases the clearance and creepage requirements for any mains that is 100V or less. requirements for Voltages >300 V moved to Annex K. which adds requirements for 600V-1200V. Also adds a reference to new Annex h for conformal coatings. Annex K also used for all insulation requirements for voltages in excess of 300v and all Cat III and Cat IV overvoltage locations.

major — see Annex K below for details.

6.7.2.2 and 6.7.2.2.1

Added new requirements to evaluate solid insulations. solid insulation used in mains must pass the voltage test in table 5 (new) and meet the requirements referenced in a) thru d). Also adds in a change in voltage to be applied for the voltage test. AC mains must be tested using the AC test and dC mains must be tested using the dC test.

major — for many solid insulations this will be a new test and evaluation.

6.7.2.2.2 Added requirements for molded and potted parts. Conductors located between same two layers molded together shall be separated by minimum 0.4 mm.

major — will require evaluation.

6.7.2.2.3 Added requirements for inner insulating layers of printed wiring boards. Conductors located between same two layers molded together shall be separated by minimum 0.4 mm. Additional requirements for reinforced insulation.

major — in the 2nd edition these were exempted from creepage and clearance requirements.

6.7.2.2.4 Added special requirements for thin film insulation. Conductors located between same two layers molded together shall be separated by distances given in 6.7.2.1 for clearance and creepage. Also must comply with additional requirements for reinforced insulation same as above.

major — in the 2nd edition these were exempted from creepage and clearance requirements.

6.7.3 terminology changed to secondary circuits derived from mains. none — editorial change only.

6.7.3.2 Clearances can meet table 6 (revised) or pass the voltage test of 6.8 using the voltages in table 6. minor — table 6 voltages vary in many cases to those in the 2nd edition.

6.7.3.3 Creepage distances must meet table 7. none — values the same as the 2nd edition.

6.7.3.4.1 general

solid insulation in secondary circuits. needs 2 tests if voltage is greater than 300V. the voltage test of 6.8.3.1 for 5 sec. Values for basic or supplementary or 1.6 times the value for reinforced and for >300V the 1 minute voltage test of 6.8.3.1 with a test voltage of 1.5 times the working voltage for basic or supplementary and twice the working voltage for reinforced insulation. Also references provided for other requirements based on material use.


6.7.3.4.2 molded and potted parts in secondary circuits are to be separated by values given in table 8. Actual measurement or manufacturers specifications are acceptable.


6.7.3.4.3 Inner insulating layers of printed wiring boards in secondary circuits are to be separated by values given in table 8. Actual measurement or manufacturers specifications are acceptable.


6.7.3.4.4 thin film insulation used in secondary circuits are to be separated by the values given in table 6. Conductors located between same two layers molded together shall be separated by distances given in 6.7.3.2 and 6.7.3.3 for clearance and creepage. Additional requirements for reinforced insulation.


6.8 Voltage tests reorganized. All test voltages are in 6.7 and procedures are in 6.8 none — editorial change only.

6.8.1 Added the distances that will prevent flashover between foil and tErmInALs in table 9. minor

6.8.2 Change humidity slightly for 92.5 C +/- 2.5 C to 93 C +/- 3 C. minor

6.9 Added item d) that clearance and creepage distances between the enclosure and hazardous parts shall not be reduced below basic by loosening of parts or wires.


sUb CLAUsE: 6.7.2.1 and table 4 – 6.9


[ 8 ]


6.9.3 Clarification on use of green/yellow insulation, enclosure requirements moved to 6.4.2 and over-range requirements moved to IEC 61010-2-030.


6.10.2.2 Conformity statement revised to add voltage tests between protective conductor and line and neutral conductors.


6.11.3.2 hazards arising from function removed. none — editorial change only.

7.1 Added additional mechanical hazards that need to be addressed. A list of mechanical hazards that are addressed by the standard is provided. more details on each hazard provided in sub-clauses. the previous note from the 2nd edition about sharp edges was added as a requirement. (the words ”should be” changed to ”shall be”). In addition, new force and pressure requirements were added. new note clarifies that multi-unit devices are treated individually unless they are supported or attached to one another.

none — editorial change only. see details below.

7.2 sharp edges is now a requirement. was previously a note under 7.1 general. references UL 1439, tests for sharpness of Edges on Equipment, as an acceptable procedure in determining compliance with this clause.

minor — reflects current practice.

7.3.1 Identifies tolerable levels for moving parts hazards by compliance with force, pressure and gap limitations (see 7.3.4 and 7.3.5) and allows use of risk assessment when these levels are not met (see 7.3.3).

major — will require evaluation of risk assessment procedures.

7.3.3 Added risk Assessment process. hazards not complying with the new force, pressure and gap limitations must use risk Assessment procedures to evaluate acceptability of these hazards. the hazards are evaluated for severity, probability of exposure and possibility of avoidance. based on the risk assessment, either low level, moderate or stringent protective measures must be applied.

major — will require evaluation of risk assessment procedures.

7.3.4 force and pressure requirements added. maximum continuous contact pressure of 50n/cm2 and max. force of 150 n. maximum temporary force for body areas of at least 3 cm2 is 250 n for max duration of 0.75s.

major — aligns up with similar requirements from other IEC standards.

7.3.5.1 Added gap limitations for moving parts where access is normally allowed. no similar requirements provided in 2nd edition. table added with body part and minimum gap dimension requirements. Values stated are for adults. Equipment designed for children shall be considered smaller dimensions.

major — aligns up with similar requirements from other IEC standards.

7.3.5.2 Added gap limitations for moving parts where access is not normally allowed. table added with maximum gap dimensions.


7.4 revised requirements for castors and foot supports. Each castor and foot support must support loads of 4 times the normal load or test the specific castor or foot sport with the greatest individual load singly.


7.5.2 new requirement for removing one screw from the handle unless it is secured against loosening and be subjected to 4 X equipment weight.

major — new requirement.

7.5.3 new requirements for lifting devices and supporting parts under the provisions for lifting and carrying clause. parts must be rated for maximum load or tested to support four times their maximum static load.


7.6 Added additional requirement for wall mounts with more than on fastener. Adds additional test to remove one fastener when more than one is employed in the device but reduces weight requirement from four to two times weight of the equipment.


7.7 note added to clarify that resistance to mechanical stresses (clause 8) does not address expelled parts from inside the equipment. those hazards are to be addressed under 7.7.

minor

sUb CLAUsE: 6.9.3 – 8

[ 9 ]


8 Clause title change to “resistance to mechanical stresses”. none — editorial change only.

8.1 Added requirements for energy protection levels below 5 J but not less than 1 J by use of risk assessment.

minor — will require testing.

8 (2nd Ed) removed paragraph regarding damage to finish, small dents, etc . none — editorial change only.

8.1 item 2) Alternative impact test using IEC 62262 (for equipment other than hand-held or direct plug-in) where the energy level is not 5 J.

minor — testing required for future evaluations.

8.1 Enclosures with a rating of greater than IK08 per IEC 62262 are exempt from the impact test. minor — relaxes requirement for some constructions.

8.1 Added voltage tests following enclosure rigidity tests. medium — implied in the 2nd edition subclause 4.2.

8.1 i) Added requirement that there have been no leaks of corrosive or harmful substances following the enclosure rigidity tests.

minor

sUb CLAUsE: 8.1 – 8.1 iv)


[ 10 ]


8.1 iv) Added the insulation of internal wiring remains undamaged. none — clarification on current practice.

8.2.2 revised sub-clause title from “dynamic test” to “Impact test”. none — editorial change only.

removed panel meters and components or windows not forming part of the enclosure from the exceptions to the impact test. Already implied in 8.1.


Added criteria for defining a sufficiently rigid surface as displacement less than or equal to 0.1 mm under the effect of an impact directly applied and whose energy corresponds to the degree of protection.

minor — clarification on requirement.

Added ability to test empty enclosures for impact tests. medium — relaxes requirement for some constructions.

Added ability to use a new enclosure for impact tests if damaged from previous passing tests. medium — relaxes requirement for some constructions.

revised requirements for fIXEd EqUIpmEnt, each test point is subjected to just one impact, with no maximum number of test points indicated. previously, maximum of 3 test points was allowed in 8.1.2.


tests are no longer called corner drop and face drop. specifications of test dependent on the weight of the equipment. fixed equipment could be major if we have not tested worst case.

medium — relaxes requirement for some constructions.

height of test set up based on energy level of equipment, allows reduced test height conditions for lower energy level devices.

major — relaxes requirement for some constructions.

8.2.1.1 wooden studs used in test set up for impact test were removed. minor

Figure 10 renamed figure 4 of the 2nd edition. none — editorial change only.

table 15 new table for test heights. major — clarification only

9.1 — Figure 11

reference to Clause 9.6 for all paths was added/implemented in the flowchart. none — explanatory information only.

9.3.2.a and c.2

flammability rating and testing refer to IEC 60695-11-10 (instead of IEC 60707). ratings are harmonized to UL 94.

none

9.3.2 b wires shall be fire retardant. testing should be conducted in accordance to IEC 60332-1-2 or IEC 60332-2-2 depending on the wire size.

none — as usually UL 2556 Vw-1 UL approved material is used and deemed to be appropriate as stated in note 2.

9.3 Figure 12

"y ≥ twice X but never less than 25 mm" instead of "y = twice X but never less than 25 mm. none — clarification of requirement.

9.4 table 17

Limits of maximum available current revised to more logical values without steps at certain voltage values as in previous editions (e.g. 30V) more stringent requirements from 18.7 to 30 V ac/dc or relaxation below 12.5V ac/dc.

major or minor — depending on the voltage used.

9.4 table 18

Values for overcurrent protection devices revised to more logical values without steps at certain voltage values as in previous editions similar to above.

major or minor — depending on the voltage used.

sUb CLAUsE: 8.2.2 – 9.4 table 18

[ 11 ]


9.6.1 the supply side of an overcurrent protective device shall be at least basic insulation between opposite polarity (L to L, L to n), conformity of solid insulation is checked by an AC-dielectric test.

major — new requirement, additional testing of solid insulation required. testing mAy be required.

10.1 temperature limits for easily touched surfaces were modified with more stringent requirements. Allows temperatures of easily touched surfaces to exceed the limits in table 19 if the maximum rated ambient is higher than 40 C. they are allowed to exceed the value only by the amount the ambient exceeds 40C.

major — must comply with new limits if applicable.

Equipment heated by its environment marking requirement change from 2nd Ed. Equipment heated by its environment to temperatures exceeding do not need the "caution, hot surface" symbol.

minor — relaxes requirement for some constructions.

table 19 distinguished outer surface enclosure requirements as having unintentional contact versus knobs and handles as normal use contact.

minor — clarifies requirement.

redefined types of metals and non-metals and modified their temperature limits based on new definition. Uncoated/anodized metals went from 70C to 65C and plastic limits went from 80C to 85C. Under knobs and handles, glass and Ceramics went from 70C to 65C. non-metallic parts went from 85C to 70C and the time duration defined as 1 to 4 sec. note added about En 563: safety of machinery — temperatures of touchable surfaces, which gives information about the effect of the duration of contact.

major — must comply with new limits if applicable.

11.2, 11.3, 11.4, 11.6

Conformity statement revised to align with new 6.7and 6.8 sub-clauses. some voltage test values may change a bit due to the insulation being evaluated.

minor

11.5 reference added for battery tests. none — explanatory information only.

11.7.2 Leakage and rupture at high-pressure requirements changed. figure 9 was removed and multiplier factors of 1.5 used for testing for leakage and 2.0 used for burst.

major — may require retesting from 2nd Ed.

11.7.3 reference now added to 11.7.2 to determine low pressure values. none — clarification on current practice.

12.2.1.2 subclause now separated into two: one for products intended to emit radiation and one for equipment that emits stray radiation. requirement for measured radiation for equipment intended to emit radiation now measured at 50 mm looking for 5 usv. If the 5 usv value is exceeded then equipment shall be marked with special markings.

minor — relaxes requirement.

12.2.1.3 new subclause for products emitting stray radiation only. none — same as the requirement in the 2nd Ed.

12.3 note added to show example of the effects of UV radiation. the conformity statement modified to say by inspection and through evaluation of risk assessment documentation.

medium — Evaluation of risk Assessment procedures may be required.

13.2.4 subclause deleted. none — editorial change only.

14.7 printed circuit boards only used with limited energy circuits must not comply with the V-1 or better requirement.

minor — 2nd edition only specifies thin-film flexible printed wiring boards as an exception, clarification. this is a relaxation.

14.8 test values for transient overvoltage limiting devices for overvoltage Categories III and IV were moved to Annex K.4.


sUb CLAUsE: 9.6.1 – 14.8


[ 12 ]


14.6 (2nd Ed)

high integrity component requirements removed. Alternate requirements can be found in 6.5.4. none — editorial change only.

15.2 revised requirement where interlock requires reactivation without the use of a tool. none — clarification of requirement.

15.3 removed reference to high Integrity Component. none — editorial change only.

16 Clause 16 changed from test and measurement equipment to Application hazards. measurement and test circuit requirements can be found in IEC 61010-2-030.


16.1 new requirement for hazards for controls that are used in a way not attended and not described in the instructions. risk assessment is used.

major — see clause 17 for application of requirement.

16.2 new requirement for ergonomic apects that can cause a hazard. risk assessment must be applied. major — see clause 17 for application of requirement.

sUb CLAUsE: 14.6 (2nd Ed) – 16.2

[ 13 ]


17 All new clauses added to evaluate additional hazards that are not addressed by the standard. IEC recognizes that standards cannot always anticipate or develop requirements to address every potential hazard for every type of device capable of being evaluated by the standard. the standards development process always lags new and emerging technology. Using risk Assessment allows manufacturers to identify and control risks in their products as they design the product. the risk Assessment process must consist of risk analysis, risk evaluation and risk reduction. risks that do remain after this risk Assessment process, must provide adequate information to mitigate these risks in the instructions to the user.

major

17 — note Annex J provides guidance on how to conduct the risk Assessment process. references to risk Assessment procedures contained in other standards such as Iso 14971, sEmI s10-1296, IEC 61508, Iso 14121-1, and AnsI b11.tr3.

major — see Annex J for more detail.

annex a, Figure a.1, a.2, a.3, a4

Added tolerances for the components used in the measurement circuit. none — clarification of requirement.

annex C reworded requirements for measurement of creepage and clearance distances. none — editorial change only.

annex d, part b)

reference to n circuit replaced with tA and tn circuit. none — editorial change only.

annex E requirements now more severe even though informative. guidelines for reduction of pollution degrees (table E.2) is determined by equipment environmental situations (table E.1). Coating moved to Annex h.

minor — informative

annex F, F3.1

Added more detailed description for conducting dielectric test and table f.1 with the test voltage values.

none — clarification of requirement.

annex F, F3.2

Added voltage test method for mains Circuits with transient voltage limiting devices in accordance with Clause 14.8. Value shall be 0.9 times the clamping voltage of such devices.

minor — a relaxation before the exception.

annex F, F.4 floating circuits dielectric test shall be conducted at least with 500Vdc or 350Vac minor — requirement exists in 2nd edition without minimum voltage. Could be major if tests already done at a lower voltage.

annex h Added normative Annex that clarifies requirements for conformal coatings. Applies requirements from IEC60664. A very important note indicates that conformal coatings that meet the requirements of AnsI/UL 746E are considered to meet these requirements. requirement taken from sub-clause 6.7.1.2 and 6.7.1.2dV of 2nd Ed.

none — reflects current practice.

annex I Added informative Annex to clarify line to neutral voltages in determining clearance, creepage and solid insulation requirements for various mains systems.


annex J Added informative Annex that provides guidance on how to conduct a risk assessment process based on Iso/IEC guide 51 (1999). provides risk assessment procedures, method for achieving tolerable risks and how to evaluate hazards by severity of harm, probability of harm and risk category. several tables were provided to clarify process.

major — new requirement.

annex K new normative Annex covers insulation requirements not covered by Clause 6.7. provides equivalent requirements for overvoltage Categories III and IV (and Cat II greater than 300V).

major — new requirement if applicable.

sUb CLAUsE: 17 – Annex K

[ 14 ]

61010-2-030 sUb-CLaUsE

dIsCUssIon ImpaCt

general note all other clauses of IEC 61010-1 3rd edition apply as written. none — explanatory information only.

1.1.1 scope of this standard covers testing and measuring circuits which are connected for test or measurement purposes to devices or circuits outside the measurement equipment itself. separates the requirements of the circuits from the requirements for the entire device which is still covered by IEC 61010-1 base standard.

none — explanatory Information only.

1.1.1 the existence of these circuits in equipment requires additional protective means between the circuit and an operator.

none — see clause 6.6 for specific requirements.

2 Entire clause of part 1 applies. none

3 Entire clause of part 1 applies with addition as noted below. none

3.5.101 Added new definition: mEAsUrEmEnt CAtEgory — classification of testing and measuring circuits according to the type of mAIns CIrCUIts to which they are intended to be connected.

none — clarification only.


5 Entire clause of part 1 applies except as follows. none

5.1.5.101.4 c) no marking requirement if it is obvious that the levels are below 6.3.1 (33Vrms/70Vdc for 3rd edition).

major — relaxation of requirement. Can be major for IEC investigations as the reference to 6.3.1 indicates 33 V as minimum shock hazard while in nA it’s 30 V. A 33 v scale max in IEC area would not meet nA shock definition in 6.1.


6.6.101 separation requirements for unmated measuring circuit terminals that can become hazar-dous live when maximum rated voltage is applied. Creepage and Clearance distances are given in table 1.


6.6.102 devices connected to specialized measuring circuit terminals (e.g. semiconductor measuring functions) shall not be both accessible and hazardous live in normal and single fault condition. applies also when other terminals are energized.










14 revised the transient overvoltage limiting devices test in Clause 14.9 from 2nd edition relaxa-tion in test requirement from 10 impulses to 5 impulses.

major — relaxation in requirement.

61010-2-030 sUb CLAUsE: general – 14

appEndIx a: ChangEs madE From UL 61010-1 2nd EdItIon to IEC 61010-2-030 1st EdItIon (spECIaL rEqUIrEmEnts For tEstIng and mEasUrIng CIrCUIts)

[ 15 ]

61010-2-030 sUb-CLaUsE

dIsCUssIon ImpaCt




101.1 new requirements for measuring circuits. this replaces the original current interruption and mis-match testing from the 2nd edition and incorporates requirements which will help eliminate the need for the Canadian only national difference.


101.3.1 Added additional protection requirements for the mismatch test. none — explanatory information only.

101.3.2 Expands requirements from Clause 9.5 of 2nd edition for a certified overcurrent protective device that is used to terminate the multifunction/overrange test. (requirements to be added in proposed 2-033 standard for multimeters also).

major — will require evaluation if applicable.

101.3.3 Added requirements for an uncertified current limitation device or impedance when used to terminate the mismatch test. (requirements to be added to proposed 2-033 standard for multimeters also.)

major — will require evaluation including testing.

101.3.4 specifies test leads requirements for doing the mismatch tests of clause 101. because of the variability of leads that can be used with measuring devices, it was decided to use a standardi-zed test lead for this testing. the only exception if a device has permanently connected leads.

major — new requirement may require testing and new test equipment

annexes All annexes of part 1 apply except as follows. none — explanatory information only.

annex K provides insulation requirements for measuring circuits similar to those in part 1 standard.

major — will require evaluation, if applicable.

annex aa Added normative annex that elaborates on requirements for measurement categories taken from Clause 6.7.4 of the 2nd edition.

none

annex bb Added informative annex that provides guidance on hazards that can exist with measure-ment equipment.


61010-2-030 sUb CLAUsE: 15 – Annex bb

[ 16 ]

IndEx oF Common tErms and voCabULary

aAnsI b11.tr3 // 13

bbasic insulation // 3, 11battery // 11

Ccastor // 8children // 8clearance // 6, 7, 13 ,14conductors // 7, 8creepage // 3, 6, 7, 13, 14

ddouble insulation // 3

Eemergency stop devices // 4enclosure // 1, 4, 7, 9, 10enclosure requirements // 8, 11environmental // 1, 13

Ffire // 1, 10flammability rating // 10

hharm // 2, 9, 13hazardous live // 2, 3, 14humidity // 7

IIEC 60050-151 // 2, 3IEC 60050-195 // 1, 3IEC 60521 // 1IEC 61010-031 // 1IEC 61010-2-030 // 1, 4, 5, 6, 8, 12, 14IEC 61243-3 // 1IEC 60695-11-10 // 10impact rating // 5impedance // 2, 6, 15insulation // 2, 3, 6, 7, 8, 10, 11, 13, 15interlocking device // 1ionizing radiation // 4Iso 14121-1 // 13Iso 14971 // 13Iso/IEC guide 51 // 13

Llifting devices // 8

mmains // 1, 2, 3, 6, 7, 10, 13, 14maintenance // 6measuring circuits // 2, 4, 14, 15mechanical // 1, 8, 9mechanical hazards // 8metals // 11molded // 7moving parts // 8

nnon-metals // 11normal condition // 2

ooscillatory // 2overvoltage // 1, 2, 3, 7, 11, 13, 14

ppollution degree // 3, 13potted // 7power frequency overvoltage // 3primary protection // 6printed wiring boards // 7, 11

rradiation // 4, 11reasonably foreseeable misuse // 2reinforced insulation // 3, 7risk // 1, 2, 5 ,8, 9, 11, 12, 13risk assessment // 1, 2, 8, 9, 11, 12, 13

sscope // 1, 14sEmI s10-1296 // 13service // 1, 6severity // 2, 8, 13single fault condition // 2, 6, 14solid insulation // 6, 7, 11, 13supplementary // 3, 7supplementary insulation // 3symbol // 4, 5, 11

ttemperature // 4, 5, 11test and measurement // 1, 12test voltages // 7transformer // 6transient overvoltage // 1, 2, 11, 14

UUL 1439 // 8UL 2556 // XX

vvoltage // 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 13, 14

Wwet conditions // 3

for morE InformAtIon on UL’s sErVICEs for thE hEALth sCIEnCEs IndUstrIEs, VIsIt UL.Com/mEdICaL

[ d ]

UL LLC333 PFINGSTEN ROADNORTHBROOK, IL 60062T: 1.877.854.3577W: UL.COM/MEDICAL

UL AND THE UL LOGO ARE TRADEMARKS OF UL LLC © 2012. BDI 120130

Documents

UL IEC 61010 2nd to 3rd EdItIon CorrELatIon · PDF fileAn easy to use reference guide on changes to UL IEC 61010 and the impact it will have. UL IEC 61010 2nd to 3rd EdItIon CorrELatIon