[Compliant standard] IEC61010-1 (JISC1010-1) CAT.III 300V Contamination degree 2, IEC61010-2-31, IEC61557-1.5, IEC60529 (IP54 dustproof / drip-proof). Ground resistance (Ω): 12/120/1200. Revised to 50kΩ (upper limit) (JISC1304: 1995 specifies the effect at 0Ω, 2kΩ, 5kΩ) (No item in 1995).
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