nemko’s compliance & market access seminar 62368-1... · •within a transformer ... optical...

1

Nemko’s compliance & market access seminar

2018

Main differences

62368-1 ed2 to ed3

Safety standard for ICT & AV Morten Andersen & Ole Morten Aaslund - Nemko Norway

Morten Andersen

DIFFERENCES ED2 VS ED33

SAFETY

12.06.2018

• Additions to cover new issues

• Main changes to clarify/replace existing

requirements

Content

12.06.2018 DIFFERENCES ED2 VS ED34

• Outdoor equipment

• Insulating liquids

• Work cells

• Wireless power transmitters

• Fully Insulated Wire (FIW)

Additions to cover new issues


• 60950-22 embedded into the main body of

62368-1 and transformed to HB-terminolgy

• Annex Y – Construction requirements

Outdoor equipment


• Product or parts immersed in insulating liquid

(4.4.4, 5.4.12, 6.4.9)

• Temperature of components in contact with the

insulating liquid shall not exceed the flashpoint of

the insulating liquid

Insulating liquids


• Space within the equipment where a person can

enter completely or partially for servicing or

operating and where mechanical hazards may be

present (8.5.4.2)

• Mainly protection of persons against MS3 parts

• Access

• Safety interlock

• Key or tool

Work cells


• Electromagnetic fields to transfer electrical power

for charging battery operated hand-held devices

(9.6)

• Risk of high temperatures of foreign metallic objects

that may be placed close to or on the transmitter

• Measures 9.6.3

Wireless power transmitters


• Also known as “zero-defect wire”

• Within a transformer (G.5.3.4)

• Compliance with IEC 60851-5:2008,

IEC 60317-0-7 and IEC 60317-56

• Max insulation Class 155 (F), IEC 60085

• Finished component subjected to routine tests

for electric strength

Fully Insulated Wire (FIW)


Main changes:

To clarify/replace existing

requirements


• Glass fixation test (4.4.3.7)

• Laminated glass used as a safeguard that

prevents access to Class 3 energy sources other

than PS3

Main changes – Clause 4


• ES3 mains / ES3 isolated (5.3.1)



• Solid insulation at frequencies higher than 30kHz

(5.4.4.9)

• Alternative Electric Strength test at mains

frequency

» based on the reduction factor for the

breakdown electric field of higher frequency

• Cap discharge after disconnection of a connector

(5.5.2.2)

• Tolerance of the X-cap not considered



• Resistor overload test (5.5.6 Table 29 & G.10.6)

• Overload test new (ref. 60065,14.2b)

• SPDs (5.5.7)

• Varistors between line and neutral or between

lines shall comply with G.8



• Functional earthing (5.6.8, F.3.6.2)

• Classification of equipment

• Touch current to unearthed accessible parts

(5.7.4)



• Battery backed up supply (5.8)

• Backfeed protection to the AC input terminal

(UPS 62040-1)

• Alternative method for determining clearances for

insulation in circuits connected to an AC mains

(5.4.2, Annex X)



• Control of fire spread in PS2 circuits (6.4.5.2)

• Late clarifications from CDV to FDIS



• Separation of combustible materials from

a PIS (6.4.7)

• If PIS, no possibility providing single faults to

determine if it is an ignition source or not

• Single faults may remove PIS Separation

safeguards

(For method 2 only (control fire spread))



• Modified method for determination of top, bottom

and side openings for fire enclosures

(6.4.8, Fig 40, Fig 44)



• Internal and external wiring in PS2 and PS3 (6.5)

• VW-1 alternative



• Horizontal force test (8.6.5)

• External horizontal force of 20 % of the weight of

the equipment or 250 N, whichever is less

• Static stability test (8.6.2.2)

• Different force due to the direction



• Mounting means for slide-rail mounted equipment

(SRME) (8.11)

• Refined requirements

• Single extended position shall comply with the

downward force test in the extended position

• Service position and installation position shall comply

with the downward force test in the service position

• All slide rails shall comply with the tests of 8.11.3.2

and 8.11.3.3 in both the service position and the

installation position



• Touch temperature limits (9.3.1)

• Related to parts likely to drop in temperature upon

touch and not likely to cause burn

• May be evaluated under the limits of Annex A in

IEC Guide 117 instead of Table 38



• Test method for Touch temperature (9.3.2)

• To be performed at an ambient between 20-30 °C

• Changed to 25+/-5 °C

• Ed2 (9.2.5) does not allow 25+5 °C

• Tma is “only” taken into account when measuring

components, insulation etc.



• New requirements for

optical radiation (Table 39)

• IEC 62471-5 for laser illuminated projectors



• Sound pressure (10.6)

• Accoustic energy Dose based requirements for

PMP - EN 50332-3



• External power supply output marking (F.3.8)

• Polarity marking is not required when the pin

configuration prevents reversed polarity

• Rated current (F.3.3.6)

• 100-240V Max 3A acceptable

Main changes – Annex F


• Rules for selecting capacitors to 60384-14

(G11.3, Table G.12)

• Exception to the requirements, one Y2 may be

used in cases where 2,5 kV is required

• IC Current Limiter

• Replacement of current three test program options

with refined single test program

Main changes – Annex G


• Pressurized liquid filled components (G.15.2)

Hydrostatic pressure test reduced:

• From five to three times the maximum working

pressure specified during normal operating

conditions;

and

• From three to two times the maximum measured

working pressure during abnormal operating

conditions and single fault conditions

Main changes – Annex G


• Battery standard IEC 62133 revised and split into

-1 and -2, and covers coin cells (M.2.1)

• Fire enclosure, Secondary lithium batteries

(M.4.3)

• Reference to 6.4.5.2 with single fault, no longer

an option

Main changes – Annex M


33

Nemko

Morten Andersen

TEL: 47 91711489

EMAIL: [email protected]

Thank you!

34

Nemko’s compliance & market access seminar

2018

nemko’s compliance & market access seminar 62368-1... · •within a transformer ... optical...

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