• Accreditation Tests
• General Tests
• Certificate of Accreditation

Accreditation Tests

(1) Making and breaking tests of switchgear

Test item	Test object	Test method standard	Test capacity
Circuit- breakers	Short-circuit tests	IEC 62271-100 7.102～7.107	Test-duty T100s, T100a Time delay of the prospective TRV is outside the range of the standard value. Rated voltage 7.2 kV，Rated short-circuit breaking current ≦ 12.5 kA Rated voltage 12 kV, 24 kV Rated short-circuit breaking current ≦ 31.5 kA
		JEC 2300 6.104
		JIS C 4603 10.8	Test-duty T100s, T100a Time delay of the prospective TRV is outside the range of the standard value. Rated voltage 7.2 kV，Rated short-circuit breaking current ≦ 12.5 kA
	Out-of-Phase tests	IEC 62271-100 7.110	Rated voltage 7.2 kV, 12 kV, 24 kV
		JEC 2300 6.106

(2) Other high power tests

◆Short-time withstand current and peak withstand current tests

Test item	Test method standard	Test capacity
Circuit-breakers	IEC 62271-100 7.6	Current ≦ 100 kA Duration ≦ 1 s Current ≦ 60 kA Duration ≦ 2 s
	JEC 2300 6.7
	JIS C 4603 10.7
Disconnectors and earthing switches	IEC 62271-102 7.6
	JEC 2310 6.7
Load break switches	IEC 62271-103 7.6
	IEC 62271-104 7.6
	JIS C 4605 6.6
	JIS C 4607 6.7
Metal-enclosed switchgear	IEC 62271-200 7.6
	IEC 62271-201 6.6
	JIS C 62271-200 6.6
Gas insulated switchgear	IEC 62271-203 7.6
	JEC 2350 6.7
Current transformer	JIS C 1731-1 7.3.1
Terminal	JIS C 2805 7.10
Common specifications	IEC 62271-1 7.6
	JEC 2390 7.5

Arc tests

Test item	Test method standard	Test capacity
Metal-enclosed switchgear	IEC 62271-200 7.105	Rated currents ≦ 40 kA
Arrester	JEC 2374 7.15

Short-circuit tests

Test item	Test method standard	Test capacity
Transformer	IEC 60076-5	Nominal voltage 6.6 kV, 22 kV, 33 kV
	JEC 2200 IV 2
	JIS C 4306 9.15
Power fuse	JEC 2330 6.9.3	Test series 1 Rated voltage 7.2 kV, 12 kV, 24 kV Rated short-circuit breaking current ≦ 40 kA

General Tests

(1) Arc test (AC / DC)

• Insulator
• Insulator assembly
• Switchgear
• Cable
• Cable assembly
• Transformer

(2) Short time current test (AC / DC)

• Insulator assembly
• Cable
• Cable assembly
• Transformer
• Other equipment

Certificate of Accreditation

Please click each image.
Please refer to The Japan Accreditation Board for Conformity Assessment (JAB)
website as to laboratory accreditation.

Certificate of accreditation
Appendix (1/3)	Appendix (2/3)	Appendix (3/3)