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- Page 2 of 5 - 

 

 

 

 

Order No.  23171 

 

 

Addition: 
VTM CLASS MATERIAL: Thin MATERIALS fulfil the 
specified conditions during the test of clause A.101 
applied for materials that the test and evaluation of 
clauses A.6 to A.10 is difficult to enforce. Materials are 
classified to three classifications as VTM-0, VTM-1 and 
VTM-2 according to the conditions after the removal of 
the test flame. 

Considered, refer to List of 
Critical Components in main 
test report. 

Addition: 
Marking for CLASS 0I EQUIPMENT 

For CLASS 0I EQUIPMENT, the following instruction 
shall be indicated on the visible place of the mains plug 
or the main body: 

“Provide an earthing connection” 

Moreover, for CLASS 0I EQUIPMENT, the following 
instruction shall be indicated on the visible place of the 
main body or written in the operating instructions: 

“Provide an earthing connection before the mains plug 
is connected to the mains. And, when disconnecting 
the earthing connection, be sure to disconnect after 
pulling out the mains plug from the mains.” 

Class III equipment. 

Replacement: 
Replace “IEC 60083” to “IEC 60083 or JIS C 8303” in 
2.1.1.1 b). 

Considered. 

Addition: 
Add the following after 1st paragraph. 

This also applies to the conductor of lead wire for 
protective earthing of CLASS 0I EQUIPMENT. 

Class III equipment. 

Replacement: 
Replace 2nd sentence in 1st paragraph. 

For CLASS I EQUIPMENT with a DETACHABLE 
POWER SUPPLY CORD, the earthing terminal in the 
appliance inlet is regarded as the main protective 
earthing terminal. 

Class III equipment. 

Replacement: 
Replace 1st sentence. 

Protective earthing connections of CLASS I 
EQUIPMENT shall make earlier and break later than 
the supply connections in each of the following: 

Class III equipment. 

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Order No.  23171 

 

 

Addition: 
Earthing of CLASS 0I EQUIPMENT 

Plugs with a lead wire for earthing shall not be used for 
equipment having a rated voltage exceeding 150V. 

For plugs with a lead wire for earthing, the lead wire 
shall not be earthed by a clip. 

CLASS 0I EQUIPMENT shall be provided with an 
earthing terminal or lead wire for earthing in the 
external where easily visible. 

Class III equipment. 

Delete 1) in Table 3B. 

Considered. 

Addition: 
Add the following informative remark after the last 
sentence. 

Remark - IEC 61965 is also applicable instead of IEC 
60065. 

Considered. 

Addition: 
Add the following to suffix 5) as specified in 
“Conditions applicable to Table 4A, Parts 1 and 2”. 

With regard to Table 4A, insulating materials 
complying with Japanese requirements (refer to 
Japanese differences for the current IEC 60335-1 (3rd 
Edition) in CB Bulletin 101B) are also acceptable. 

Add a suffix 7) in “Conditions applicable to Table 4A, 
Parts 1 and 2”. 

In the right column of Table 4A, Part 1, add suffix 7) to 
“50” (K), corresponding to “- without T – marking” in the 
left column so as to become “50 7)”. 

Add 7) to Table 4A, Part 2 as follows. 

7) This value shall apply only to wiring or cords 
complying with relevant IEC standards. Others shall 
comply with Japanese requirements (refer to Japanese 
differences for the current IEC 60335-1 (3rd Edition) in 
CB Bulletin 101B). 

Considered 

Addition: 
Add the following in 7th paragraph. 

- for thin materials, e.g., flexible printed boards, etc., 
used inside equipment, be of FLAMMABILITY CLASS 
VTM-2 or better. 

Considered. 

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Order No.  23171 

 

 

Replacement: 
Replace Table 5A. 

 

Class III equipment. 

Replacement: 
Replace 3rd Item as follows. 

- BASIC INSULATION between the PRIMARY 
CIRCUIT and accessible conductive parts of CLASS I 
or 0I EQUIPMENT; 

Class III equipment. 

Addition: 
Add the subclause A.101 with the title “Flammability 
tests for classifying materials VTM” and the following: 

Thin sheet materials shall comply with ISO 9773. 

Considered. 

Addition: 
Add the following to the Note for Table G.1. 

2. In Japan, MAINS TRANSIENT VOLTAGE for 
equipment with a Nominal AC MAINS SUPPLY 
VOLTAGE of 100V is to be decided based on the 
column where Nominal AC MAINS SUPPLY 
VOLTAGE in Table G.1 is 150V. 

Annex G not used 

Addition: 
Add “IEC 61965:2000, Mechanical Safety for Cathode 
Ray Tubes”. 

No CRTs. 

Replacement: 
Replace 2nd paragraph. 

This annex covers to round winding wires having 
diameters between 0.05 mm and 5.00 mm. 

No TIW used. 

Replacement: 
Electric strength  
The test sample is prepared according to IEC 60851-
5:1997, 4.4.1 (for a twisted pair). The sample is then 
subjected to the test of 5.2.2 of this standard, with a 
test voltage not less than twice the appropriate voltage 
in table 5B (see 5.2.2) of this standard. However, the 
minimum values shall be as follows: 

- for BASIC INSULATION or SUPPLEMENTARY 
INSULATION, 3000 V, or; 

- for REINFORCED INSULATION, 6000 V. 

No TIW used. 

- Page 5 of 5 - 

 

 

 

 

Order No.  23171 

 

 

Test 8 of IEC 60851-3:1996, 5.1.1, using the mandrel 
diameters of table U.1. The test sample is then 
examined in accordance with IEC 60851-3:1996, 
5.1.1.4, followed by the test of 5.2.2 of this standard 
except applying the test voltage between the wire and 
the mandrel. A test voltage shall not be less than twice 
the appropriate voltage in table 5B (see 5.2.2) of this 
standard. However, the minimum values shall be as 
follows: 

- for BASIC INSULATION or SUPPLEMENTARY 
INSULATION, 1500 V, or; 

- for REINFORCED INSULATION, 3000 V. 

NOTE: “twice” in the 6

th

 line is deleted – ref. 

confirmation by Japan NCB – JQA.

 

No TIW used. 

 
The tension to be applied to the wire during winding on 
the mandrel is calculated from the wire diameter to be 
equivalent to 118 Mpa ± 10 % (118 N/mm2 ± 10 %). 

No TIW used.