Equipment traceability.xlsx

	A	B	C	D	E	F	G	H	I
1	Equipment	Standard Reference (IEC/ISO)	Calibration Method	Range	Tolerance	Frequency	Traceability Ref	Responsibility	Remarks
2	HV Divider	IEC 60060-2, ISO/IEC 17025	Apply known HV, compare with reference divider	0–1000 kV	±0.5%	Yearly	NABL Accredited Std.	Calibration Engineer	Record temp/humidity
3	CT/PT	IEC 60044, ISO/IEC 17025	Ratio & phase error test using reference standard	0–400 kV	As per IEC	Yearly	Accredited CT/PT Std.	Test Engineer	Report errors
4	Standard Capacitor	IEC 60358	Bridge comparison with reference capacitor	1 nF – 10 µF	±0.2%	2 Years	NMI Ref.	Lab Engineer	Maintain humidity <50%
5	HV Meter	IEC 61083	Compare with reference meter under HV	0–1000 kV	±1%	Yearly	Traceable Std. Meter	Calibration Eng.	Store in dry place
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