NEN EN 140200 : 1996 AMD 1 2001

1 Scope
2 Preferred characteristics, ratings and severities for
    environmental and overload tests
    2.1 Characteristics
          2.1.1 Climatic severities
          2.1.2 Temperature characteristics and temperature
                  coefficients of resistance
          2.1.3 Limits for change in resistance
    2.2 Preferred value ratings
          2.2.1 Rated resistance
          2.2.2 Tolerances on rated resistance
          2.2.3 Rated dissipation
          2.2.4 Limiting element voltage
          2.2.5 Insulation resistance
          2.2.6 Insulation voltage
    2.3 Severities for environmental and overload test
          2.3.1 Drying
          2.3.2 Vibration
          2.3.3 Low air pressure
          2.3.4 Bump
          2.3.5 Shock
          2.3.6 Overload
    2.4 Information to be given in detail specification
          2.4.1 Style
          2.4.2 Rated dissipation
          2.4.3 Limiting element voltage
          2.4.4 Dimensions
          2.4.5 Resistance range
          2.4.6 Tolerances on rated resistance
          2.4.7 Climatic category
          2.4.8 Vibration severity
          2.4.9 Low air pressure severity
          2.4.10 Bump severity
          2.4.11 Shock severity
          2.4.12 Limits of resistance change after 1000 h
                  endurance test
          2.4.13 Temperature characteristic of resistance
          2.4.14 Overload
          2.4.15 Derating curve
          2.4.16 Marking
          2.4.17 Ordering information
          2.4.18 Additional information (not for
                  inspection purposes)
3 Inspection
    3.1 Formation of inspection lots
          3.1.1 General
          3.1.2 Lot-by-lot testing
          3.1.3 Periodic testing
    3.2 Test methods
    3.3 Qualification approval
    3.4 Assessed process average procedures (APA)
    3.5 Delayed delivery
Tables
1 Percentage change in resistance
2 Limits of change in resistance
Annexes
A.1 Fixed sample size Qualification Approval test schedules
    for fixed power resistors
A.2 Fixed sample size Qualification Approval test schedule
    for fixed power resistors

   

Gives preferred values for characteristics and ratings, in addition to the inspection requirements for fixed power resistors of assessed quality with a rated dissipation not in excess of 1000 W. Chooses from generic specification EN 140000 the correct methods for use in detail specifications taken from this specification.