IEC 60512-2-1:2002 PDF

Connectors for electronic equipment - Tests and measurements - Part 2-1: Electrical continuity and contact resistance tests - Test 2a: Contact resistance - Millivolt level method

First page of standard IEC 60512-2-1:2002

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Title (English):

IEC 60512-2-1:2002

Connectors for electronic equipment - Tests and measurements - Part 2-1: Electrical continuity and contact resistance tests - Test 2a: Contact resistance - Millivolt level method

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 9
Publication date:: February 22, 2002
Edition:: IEC IS 60512 edition 1 version 1
ICS:: 31.220.10

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Description (English):

Defines a standard test method to measure the electrical resistance across a pair of mated contacts or a contact with a measuring gauge. Measurements may be carried out with direct current or alternating current.

Technical details

Technical committee: SC 48B - Electrical connectors
SKU: IEC 60512-2-1:2002

Abstract

Overview

IEC 60512-2-1:2002 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies a standardized test method for measuring the electrical resistance of connectors used in electronic equipment. This part of IEC 60512 focuses on Test 2a: Contact resistance using the millivolt level method to assess the electrical continuity and contact resistance of mated contacts or a contact with a measuring gauge. The standard covers measurements using either direct current (DC) or alternating current (AC) at frequencies not exceeding 2 kHz. Precise contact resistance testing ensures reliable connector performance essential in electronic systems.

Key Topics

Scope and Purpose The standard defines a method to accurately determine the contact resistance of electromechanical components within the IEC technical committee 48 domain. It is applicable where detailed specifications require this specific test and can be adapted for similar electronic devices.
Measurement Requirements
- Measurements may use DC or AC current (up to 2 kHz).
- Test voltage must not exceed 20 mV to avoid damaging insulating films on contacts.
- Test current should not exceed 100 mA.
- The measuring apparatus must maintain accuracy within a 1% total error margin.
Test Procedure
- Voltage drop is measured across connection points specified in the detail specification.
- The contacts must not be operated during measurement to ensure accuracy.
- Abnormal pressure on contacts must be avoided, and test cables should be stable.
- If direct access to connection points is unavailable, the resistance of connecting wires must be subtracted from the measurement.
- D.C. testing involves measuring resistance in both forward and reverse current directions, then averaging results, ensuring balanced and reliable readings using a specified formula: [ R = \frac{V_{mf} - V_{mr}}{I_f + I_r} ] where (V) and (I) represent measured voltages and currents in both directions.
Measurement Cycles
- With DC: apply voltage, measure forward current, measure reverse current, then disconnect.

Abstract

Overview

Key Topics

Scope and Purpose The standard defines a method to accurately determine the contact resistance of electromechanical components within the IEC technical committee 48 domain. It is applicable where detailed specifications require this specific test and can be adapted for similar electronic devices.
Measurement Requirements
- Measurements may use DC or AC current (up to 2 kHz).
- Test voltage must not exceed 20 mV to avoid damaging insulating films on contacts.
- Test current should not exceed 100 mA.
- The measuring apparatus must maintain accuracy within a 1% total error margin.
Test Procedure
- Voltage drop is measured across connection points specified in the detail specification.
- The contacts must not be operated during measurement to ensure accuracy.
- Abnormal pressure on contacts must be avoided, and test cables should be stable.
- If direct access to connection points is unavailable, the resistance of connecting wires must be subtracted from the measurement.
- D.C. testing involves measuring resistance in both forward and reverse current directions, then averaging results, ensuring balanced and reliable readings using a specified formula: [ R = \frac{V_{mf} - V_{mr}}{I_f + I_r} ] where (V) and (I) represent measured voltages and currents in both directions.
Measurement Cycles
- With DC: apply voltage, measure forward current, measure reverse current, then disconnect.

IEC 60512-2-1:2002 PDF

Technical details

Abstract

Overview

Key Topics

Abstract

Overview

Key Topics

Applications

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