List of external influences: Difference between revisions

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<br>
<br>


{| style="width: 65%; height: 120px" cellspacing="1" cellpadding="1" border="1"
{| class="wikitable" style="width: 65%; height: 120px"
|-
|-
| valign="top" bgcolor="#0099cc" colspan="2" | '''Code&nbsp;&nbsp;'''&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
! colspan="2" | Code&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| valign="top" bgcolor="#0099cc" colspan="2" | '''External influences'''
! colspan="2" | External influences  
| bgcolor="#0099cc" | '''Characteristics required for equipment'''
! Characteristics required for equipment
|-
|-
| bgcolor="#0099cc" colspan="5" | '''A - Environment&nbsp;&nbsp;'''&nbsp;&nbsp;&nbsp;
! colspan="5" | A - Environment&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
|-
|-
| bgcolor="#cccccc" | '''AA&nbsp;'''  
| {{Table_HC2}} | '''AA&nbsp;'''  
| bgcolor="#cccccc" colspan="4" | '''Ambient temperature (°C)'''
| {{Table_HC2}} colspan="4" | '''Ambient temperature (°C)'''
|-
|-
| &nbsp;&nbsp;&nbsp;  
| &nbsp;&nbsp;&nbsp;  
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| width="10%" | High&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| width="10%" | High&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| valign="top" rowspan="4" | Specially designed equipment or appropriate arrangements
| rowspan="4" | Specially designed equipment or appropriate arrangements
|-
|-
| AA1  
| AA1  
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| &nbsp;
| &nbsp;
|-
|-
| valign="top" | AA4&nbsp;  
| AA4&nbsp;  
| valign="top" | - 5° C  
| - 5° C  
| valign="top" | + 40 °C  
| + 40 °C  
| &nbsp;  
| &nbsp;  
| Normal (special precautions in certain cases)
| Normal (special precautions in certain cases)
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| + 60 °C  
| + 60 °C  
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| valign="top" rowspan="3" | Specially designed equipment or <br>appropriate arrangements
| rowspan="3" | Specially designed equipment or <br>appropriate arrangements
|-
|-
| AA7  
| AA7  
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|}
|}


{| style="width: 790px; height: 145px" cellspacing="1" cellpadding="1" border="1"
{| class="wikitable" style="width: 790px; height: 145px"
|-
|-
| bgcolor="#cccccc" | '''AB'''&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| {{Table_HC2}} | '''AB'''&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| bgcolor="#cccccc" colspan="7" | '''Atmospheric humidity'''
| {{Table_HC2}} colspan="7" | '''Atmospheric humidity'''
|-
|-
| &nbsp;  
| &nbsp;  
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|-
|-
| &nbsp;&nbsp;  
| &nbsp;&nbsp;  
| valign="top" width="8%" | Low&nbsp;  
| width="8%" | Low&nbsp;  
| valign="top" width="2%" | High&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| width="2%" | High&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| width="5%" | Low&nbsp;&nbsp;&nbsp;&nbsp;  
| width="5%" | Low&nbsp;&nbsp;&nbsp;&nbsp;  
| valign="top" width="5%" | High  
| width="5%" | High  
| valign="top" width="5%" | Low  
| width="5%" | Low  
| valign="top" width="5%" | High&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| width="5%" | High&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| &nbsp;&nbsp;
| &nbsp;&nbsp;
|-
|-
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|}
|}


{| style="width: 790px; height: 324px" cellspacing="1" cellpadding="1" border="1"
{| class="wikitable" style="width: 790px; height: 324px"
|-
|-
| bgcolor="#cccccc" | '''AC'''  
| {{Table_HC2}} | '''AC'''  
| bgcolor="#cccccc" colspan="3" | '''Altitude&nbsp;'''
| {{Table_HC2}} colspan="3" | '''Altitude&nbsp;'''
|-
|-
| AC1  
| AC1  
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| Normal
| Normal
|-
|-
| valign="top" | AC2  
| AC2  
| valign="top" | &gt; 2000 m  
| &gt; 2000 m  
| &nbsp;&nbsp;  
| &nbsp;&nbsp;  
| May necessitate precaution (derating factors)
| May necessitate precaution (derating factors)
|-
|-
| bgcolor="#cccccc" | '''AD'''&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| {{Table_HC2}} | '''AD'''&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| bgcolor="#cccccc" colspan="3" | '''Presence of water''' &nbsp;
| {{Table_HC2}} colspan="3" | '''Presence of water''' &nbsp;
|-
|-
| AD1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| AD1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
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| IPX6
| IPX6
|-
|-
| valign="top" | AD7  
| AD7  
| valign="top" | Immersion  
| Immersion  
| Water 150 mm above the highest point and <br>equipment not more than 1m below the surface  
| Water 150 mm above the highest point and <br>equipment not more than 1m below the surface  
| IPX7
| IPX7
|-
|-
| valign="top" | AD8  
| AD8  
| valign="top" | Submersion  
| Submersion  
| Equipment is permanently and totally covered&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| Equipment is permanently and totally covered&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| IPX8
| IPX8
|}
|}


{| style="width: 790px; height: 88px" cellspacing="1" cellpadding="1" border="1"
{| class="wikitable" style="width: 790px; height: 88px"
|-
|-
| bgcolor="#cccccc" | '''AE'''&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| {{Table_HC2}} | '''AE'''&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| bgcolor="#cccccc" colspan="4" | '''Presence of foreign solid bodies'''&nbsp;&nbsp;&nbsp;
| {{Table_HC2}} colspan="4" | '''Presence of foreign solid bodies'''&nbsp;&nbsp;&nbsp;
|-
|-
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| valign="top" | Smallest&nbsp;dimension&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| Smallest&nbsp;dimension&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| Example&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| Example&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| &nbsp;
| &nbsp;
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|}
|}


{| style="width: 790px; height: 640px" cellspacing="1" cellpadding="1" border="1"
{| class="wikitable" style="width: 790px; height: 640px"
|-
|-
| bgcolor="#cccccc" | '''AF'''&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| {{Table_HC2}} | '''AF'''&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| valign="top" bgcolor="#cccccc" colspan="3" | '''Presence of corrosive or polluting substances'''
| {{Table_HC2}} colspan="3" | '''Presence of corrosive or polluting substances'''
|-
|-
| AF1  
| AF1  
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| Equipment specially designed
| Equipment specially designed
|-
|-
| bgcolor="#cccccc" | '''AG'''  
| {{Table_HC2}} | '''AG'''  
| bgcolor="#cccccc" colspan="3" | '''Mechanical stress impact'''
| {{Table_HC2}} colspan="3" | '''Mechanical stress impact'''
|-
|-
| AG1  
| AG1  
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| Normal
| Normal
|-
|-
| valign="top" | AG2  
| AG2  
| valign="top" | Medium severity  
| Medium severity  
| &nbsp;  
| &nbsp;  
| Standard where applicable or reinforced material
| Standard where applicable or reinforced material
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| Reinforced protection
| Reinforced protection
|-
|-
| bgcolor="#cccccc" | '''AH'''  
| {{Table_HC2}} | '''AH'''  
| bgcolor="#cccccc" colspan="3" | '''Vibrations'''&nbsp;&nbsp;
| {{Table_HC2}} colspan="3" | '''Vibrations'''&nbsp;&nbsp;
|-
|-
| AH1  
| AH1  
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| Normal
| Normal
|-
|-
| valign="top" | AH2  
| AH2  
| valign="top" | Medium severity  
| Medium severity  
| valign="top" | Usual industrial conditions  
| Usual industrial conditions  
| Specially designed equipment or special arrangements
| Specially designed equipment or special arrangements
|-
|-
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| &nbsp;
| &nbsp;
|-
|-
| bgcolor="#cccccc" | '''AJ'''  
| {{Table_HC2}} | '''AJ'''  
| bgcolor="#cccccc" colspan="3" | '''Other mechanical stresses'''
| {{Table_HC2}} colspan="3" | '''Other mechanical stresses'''
|-
|-
| bgcolor="#cccccc" | '''AK'''  
| {{Table_HC2}} | '''AK'''  
| bgcolor="#cccccc" colspan="3" | '''Presence of flora and/or mould growth'''
| {{Table_HC2}} colspan="3" | '''Presence of flora and/or mould growth'''
|-
|-
| AH1  
| AH1  
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| &nbsp;
| &nbsp;
|-
|-
| bgcolor="#cccccc" | '''AL'''  
| {{Table_HC2}} | '''AL'''  
| bgcolor="#cccccc" colspan="3" | '''Presence of fauna&nbsp;'''
| {{Table_HC2}} colspan="3" | '''Presence of fauna&nbsp;'''
|-
|-
| AH1  
| AH1  
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| &nbsp;
| &nbsp;
|-
|-
| bgcolor="#cccccc" | '''AM'''  
| {{Table_HC2}} | '''AM'''  
| bgcolor="#cccccc" colspan="3" | '''Electromagnetic, electrostatic or ionising influences / Low frequency electromagnetic phenomena / Harmonics'''
| {{Table_HC2}} colspan="3" | '''Electromagnetic, electrostatic or ionising influences / Low frequency electromagnetic phenomena / Harmonics'''
|-
|-
| AM1  
| AM1  
| colspan="2" | Harmonics,&nbsp;interharmonics&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| colspan="2" | Harmonics,&nbsp;interharmonics&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| valign="top" rowspan="10" | Refer to applicable IEC standards
| rowspan="10" | Refer to applicable IEC standards
|-
|-
| AM2  
| AM2  
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| colspan="2" | Direct current in a.c. networks &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
| colspan="2" | Direct current in a.c. networks &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
|-
|-
| valign="top" | AM8  
| AM8  
| colspan="2" | Radiated magnetic fields&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
| colspan="2" | Radiated magnetic fields&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
|-
|-
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|}
|}


{| style="width: 790px; height: 1176px" cellspacing="1" cellpadding="1" border="1"
{| class="wikitable" style="width: 790px; height: 1176px"
|-
|-
| valign="top" | AM22&nbsp;&nbsp;  
| AM22&nbsp;&nbsp;  
| Conducted unidirectional transients of the nanosecond time scale&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| Conducted unidirectional transients of the nanosecond time scale&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  
| Refer to applicable IEC standards
| Refer to applicable IEC standards
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| Ionisation
| Ionisation
|-
|-
| bgcolor="#cccccc" | '''AN'''  
| {{Table_HC2}} | '''AN'''  
| bgcolor="#cccccc" colspan="2" | '''Solar radiation'''
| {{Table_HC2}} colspan="2" | '''Solar radiation'''
|-
|-
| AN1  
| AN1  
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| High
| High
|-
|-
| bgcolor="#cccccc" | '''AP'''  
| {{Table_HC2}} | '''AP'''  
| bgcolor="#cccccc" colspan="2" | '''Seismic effect'''
| {{Table_HC2}} colspan="2" | '''Seismic effect'''
|-
|-
| AP1  
| AP1  
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| High severity
| High severity
|-
|-
| bgcolor="#cccccc" | '''AQ'''  
| {{Table_HC2}} | '''AQ'''  
| bgcolor="#cccccc" colspan="2" | '''Lightning'''
| {{Table_HC2}} colspan="2" | '''Lightning'''
|-
|-
| AQ1  
| AQ1  
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| Direct exposure
| Direct exposure
|-
|-
| bgcolor="#cccccc" | '''AR'''  
| {{Table_HC2}} | '''AR'''  
| bgcolor="#cccccc" colspan="2" | '''Movement of air'''
| {{Table_HC2}} colspan="2" | '''Movement of air'''
|-
|-
| AQ1  
| AQ1  
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| High
| High
|-
|-
| bgcolor="#cccccc" | '''AS'''  
| {{Table_HC2}} | '''AS'''  
| bgcolor="#cccccc" colspan="2" | '''Wind'''
| {{Table_HC2}} colspan="2" | '''Wind'''
|-
|-
| AQ1  
| AQ1  
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| High
| High
|-
|-
| bgcolor="#0099cc" colspan="3" | '''B - Utilization'''
! colspan="3" | B - Utilization
|-
|-
| bgcolor="#cccccc" | '''BA'''  
| {{Table_HC2}} | '''BA'''  
| bgcolor="#cccccc" colspan="2" | '''Capability of persons'''
| {{Table_HC2}} colspan="2" | '''Capability of persons'''
|-
|-
| BA1  
| BA1  
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| Skilled
| Skilled
|-
|-
| bgcolor="#cccccc" | '''BB'''  
| {{Table_HC2}} | '''BB'''  
| bgcolor="#cccccc" colspan="2" | '''Electrical resistance of human body'''
| {{Table_HC2}} colspan="2" | '''Electrical resistance of human body'''
|-
|-
| bgcolor="#cccccc" | '''BC'''  
| {{Table_HC2}} | '''BC'''  
| bgcolor="#cccccc" colspan="2" | '''Contact of persons with earth potential'''
| {{Table_HC2}} colspan="2" | '''Contact of persons with earth potential'''
|-
|-
| valign="top" | BC1  
| BC1  
| valign="top" | None  
| None  
| Class of equipment according to IEC61140
| Class of equipment according to IEC61140
|-
|-
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| Continuous
| Continuous
|-
|-
| bgcolor="#cccccc" | '''BD'''  
| {{Table_HC2}} | '''BD'''  
| bgcolor="#cccccc" colspan="2" | '''Condition of evacuation in case of emergency'''
| {{Table_HC2}} colspan="2" | '''Condition of evacuation in case of emergency'''
|-
|-
| BD1  
| BD1  
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| High density / difficult exit
| High density / difficult exit
|-
|-
| bgcolor="#cccccc" | '''BE'''  
| {{Table_HC2}} | '''BE'''  
| bgcolor="#cccccc" colspan="2" | '''Nature of processed or stored materials'''
| {{Table_HC2}} colspan="2" | '''Nature of processed or stored materials'''
|-
|-
| BE1  
| BE1  
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| Contamination risks
| Contamination risks
|-
|-
| bgcolor="#0099cc" colspan="3" | '''C - Construction of building'''
! colspan="3" | C - Construction of building
|-
|-
| bgcolor="#cccccc" | '''CA'''  
| {{Table_HC2}} | '''CA'''  
| bgcolor="#cccccc" colspan="2" | '''Construction materials'''
| {{Table_HC2}} colspan="2" | '''Construction materials'''
|-
|-
| CA1  
| CA1  
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| &nbsp;&nbsp;
| &nbsp;&nbsp;
|-
|-
| bgcolor="#cccccc" | '''CB'''  
| {{Table_HC2}} | '''CB'''  
| bgcolor="#cccccc" colspan="2" | '''Building design&nbsp;'''
| {{Table_HC2}} colspan="2" | '''Building design&nbsp;'''
|-
|-
| CB1  
| CB1  
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|}
|}


&nbsp;'''''Fig. E46:''' List of external influences (taken from Appendix A of IEC 60364-5-51)<br>''
'''''Fig. E46:''' List of external influences (taken from Appendix A of IEC 60364-5-51)<br>''


----
----

Revision as of 13:10, 15 November 2013


Figure E46 below is from IEC 60364-5-51, which should be referred to if further details are required.



Code                             External influences Characteristics required for equipment
A - Environment     
AA  Ambient temperature (°C)
    Low          High                                                                                         Specially designed equipment or appropriate arrangements
AA1 - 60 °C + 5 °C   
AA2 - 40 °C + 5 °C  
AA3 - 25 °C + 5 °C  
AA4  - 5° C + 40 °C   Normal (special precautions in certain cases)
AA5 + 5 °C + 40 °C   Normal
AA6 + 5 °C + 60 °C                                                        Specially designed equipment or
appropriate arrangements
AA7 - 25 °C + 55 °C  
AA8 - 50° C + 40 °C                                                                              
AB       Atmospheric humidity
  Air temperature °C  Relative humidity %   Absolute humidity g/m3          
   Low  High            Low     High Low High            
AB1    - 60 °C + 5 °C 3 100 0.003 7 Appropriate arrangements shall be made
AB2 - 40 °C + 5 °C 10 100 0.1 7  
AB3 - 25 °C + 5 °C 10 100 0.5 7
AB4 - 5° C + 40 °C 5 95 1 29 Normal
AB5 + 5 °C + 40 °C 5 85 1 25 Normal
AB6 + 5 °C + 60 °C 10 100 1 35 Appropriate arrangements shall be made
AB7 - 25 °C + 55 °C 10 100 0.5 29    
AB8      - 50 °C       + 40 °C     15 100 0.04 36       
AC Altitude 
AC1 y 2000 m   Normal
AC2 > 2000 m    May necessitate precaution (derating factors)
AD        Presence of water  
AD1      Negligible Outdoor or non-weather protected locations IPX0
AD2 Free falling drops   IPX1 or IPX2
AD3 Sprays   IPX3
AD4 Splashes   IPX4
AD5 Jets Locations where hose water is used regularly IPX5
AD6 Waves Seashore locations (piers, beaches, quays…) IPX6
AD7 Immersion Water 150 mm above the highest point and
equipment not more than 1m below the surface 		IPX7
AD8 Submersion Equipment is permanently and totally covered                                    IPX8
AE        Presence of foreign solid bodies   
                                       Smallest dimension         Example                                             
AE1 Negligible      IP0X
AE2 Small objects 2.5 mm Tools IP3X
AE3 Very small objects 1 mm Wire                          IP4X
AE4 Light dust     IP5X if dust penetration is not harmful to functioning
IP6X if dust should not penetrate
AE5 Moderate dust    
AE6 Heavy dust     IP6X
AF        Presence of corrosive or polluting substances
AF1 Negligible   Normal
AF2 Atmospheric   According to the nature of the substance
AF3 Intermittent, accidental   Protection against corrosion
AF4 Continuous   Equipment specially designed
AG Mechanical stress impact
AG1 Low severity   Normal
AG2 Medium severity   Standard where applicable or reinforced material
AG3 High severity   Reinforced protection
AH Vibrations  
AH1 Low severity Household or similar Normal
AH2 Medium severity Usual industrial conditions Specially designed equipment or special arrangements
AH3 High severity Severe industrial conditions  
AJ Other mechanical stresses
AK Presence of flora and/or mould growth
AH1 No hazard   Normal
AH2 Hazard    
AL Presence of fauna 
AH1 No hazard   Normal
AH2 Hazard    
AM Electromagnetic, electrostatic or ionising influences / Low frequency electromagnetic phenomena / Harmonics
AM1 Harmonics, interharmonics                                                                                      Refer to applicable IEC standards
AM2 Signalling voltage  
AM3 Voltage amplitude variations  
AM4 Voltage unbalance  
AM5 Power frequency variations  
AM6 Induced low-frequency voltages  
AM7 Direct current in a.c. networks                                                  
AM8 Radiated magnetic fields                                              
AM9 Electric field  
AM21 Induced oscillatory voltages or currents  
AM22   Conducted unidirectional transients of the nanosecond time scale                                Refer to applicable IEC standards
AM23 Conducted unidirectional transients of the microsecond to the millisecond time scale   
AM24 Conducted oscillatory transients
AM25 Radiated high frequency phenomena
AM31 Electrostatic discharges
AM41 Ionisation
AN Solar radiation
AN1 Low Normal
AN2 Medium   
AN3 High
AP Seismic effect
AP1 Negligible Normal
AP2 Low severity    
AP3 Medium severity
AP4 High severity
AQ Lightning
AQ1 Negligible Normal
AQ2 Indirect exposure   
AQ3 Direct exposure
AR Movement of air
AQ1 Low Normal
AQ2 Medium   
AQ3 High
AS Wind
AQ1 Low Normal
AQ2 Medium  
AQ3 High
B - Utilization
BA Capability of persons
BA1 Ordinary Normal
BA2 Children   
BA3 Handicapped
BA4 Instructed
BA5 Skilled
BB Electrical resistance of human body
BC Contact of persons with earth potential
BC1 None Class of equipment according to IEC61140
BC2 Low   
BC3 Frequent
BC4 Continuous
BD Condition of evacuation in case of emergency
BD1 Low density / easy exit Normal
BD2 Low density / difficult exit   
BD3 High density / easy exit
BD4 High density / difficult exit
BE Nature of processed or stored materials
BE1 No significant risks Normal
BE2 Fire risks   
BE3 Explosion risks
BE4 Contamination risks
C - Construction of building
CA Construction materials
CA1 Non combustible Normal
CA2 Combustible   
CB Building design 
CB1 Negligible risks Normal
CB2 Propagation of fire   
CB3 Movement
CB4 Flexible or unstable

Fig. E46: List of external influences (taken from Appendix A of IEC 60364-5-51)

ru:Перечень внешних воздействий zh:外部影响一览表

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