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==What is AC-voltage==  
==What is AC voltage?==  


*[[Electricity basics]]
*[[Electricity basics:]]


AC-voltage is voltage where there is not a Plus and Minus terminal on the supply.
AC [[voltage]] is voltage that does not have a Plus and Minus terminal on the supply.


AC-voltage symbol [[Image:NO plus min power.PNG|50px]]
[[AC]] voltage symbol: [[Image:NO plus min power.PNG|50px]]


Other Names for "AC-voltage"
Other names for AC voltage:


*Directed power or voltage
*Directed [[power]] or voltage
*Sine wave power or voltage
*Sine wave power or voltage
*Inverter type of power or voltage
*Inverter type of power or voltage


== AC-voltage safety  ==
== AC voltage safety  ==


AC electricity with a voltage less than 50 V (RMS) is called '''Extra Low Voltage'''. This voltage is unlikely to give a human being a dangerous electric shock.
AC electricity with a voltage less than 50 V (RMS) is called '''Extra Low Voltage'''. This voltage is unlikely to give a human being a dangerous electric shock.


==What is low voltage==
==What is low voltage?==


*[[Electricity basics]]
*[[Electricity basics]]<!-- Add content? -->
*[[Electricity safety basics]]
*[[Electricity safety basics]]<!-- Add content? -->


Other Names for "low voltage"
Other names for low voltage:
*Shock free power or voltage
*Shock free power or voltage


==What is DC-voltage==  
==What is DC voltage?==  


DC-voltage haves a Plus and Min.
[[DC]] voltage is voltage that has a Plus and Minus terminal.


DC-voltage symbol [[Image:plus min power.PNG|50px]]
DC voltage symbol: [[Image:plus min power.PNG|50px]]


Other Names for "DC-voltage"
Other names for DC voltage:


*DC power or voltage
*DC power or voltage
*Battery type of power or voltage
*Battery type of power or voltage
*Plus-min power or voltage
*Plus-minus power or voltage




==Electric DC polarity PLUS and MIN ==
==Electric DC polarity: plus and minus == <!-- Clarify the meaning of this heading. -->


[[Image:markt plus wire.PNG|thumb|Electricity basics: Marked plus wire|300px]]  
[[Image:markt plus wire.PNG|thumb|Electricity basics: Marked plus wire|300px]]  


For most kind of devices it is important to have the right voltage and polarity.
For most kinds of devices it is important to have the right voltage and polarity.
Wrong voltage or polarity can destroy a device
Wrong voltage or polarity can destroy a device


How to Mark the plus of to find the plus pole  
How to mark the plus or to find the plus pole:


*red is always plus.
*Red is always plus.
      
      
*painted line on the plus wire, no line on the min.  
*Painted line on the plus wire, no painted line on the min.  
      
      
*Plus wire is square, round wire is min    
*Square wire is plus, round wire is minus.    
      
      
*sharp edge is plus, round wire is min    
*Sharp edge is plus, round wire is minus. <!-- Did you mean smooth edge? -->    
      
      
*knot is plus, no knot is min    
*Knot is plus, no knot is minus.    
      
      
*mark on the plus wire and so on, the plus wire is special or not normal than a normal wire.  
*Mark on the plus wire, the plus wire is special.    
    
    
*and so on, the plus wire is special or not normal than a normal wire.    
*and so on, the plus wire is special or not normal than a normal wire. <!-- Repeat intentional? -->   




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These must be in good working order to save your electric material:
These must be in good working order to save your electric material:


*The voltage
*The voltage.


*The amperage
*The amperage.


*The PLUS and MIN position
*The plus and minus position.


*The type of power AC or DC  
*The type of power, AC or DC.


*The type of low voltage coax connector
*The type of low voltage coax connector.


*protect your plug and connector against mechanical puling force
*Protect your plug and connector against mechanical pulling force.


*take your time to check these 6 items
*Take your time to check these 6 items.




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|}
|}


==electric current ampere ==
==Electric current ampere ==
{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
! amp. on  
! amp. on  
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|}
|}


==electric voltage==
==Electric voltage==


{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
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|}
|}


== adapter with different connectors ==
== Adapter with different connectors ==


Protect your power supply  
Protect your power supply.


On the left power supply output in the right power receiving device
On the left is the power supply output and on the right power receiving device.




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[[Image:inside outside size.PNG|300px]]
[[Image:inside outside size.PNG|300px]]


Plus and min
Plus and minus


[[Image:Power_supply_with_connecting_adapters.PNG|500px]]
[[Image:Power_supply_with_connecting_adapters.PNG|500px]]
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(*) Mono jack
(*) Mono jack


==What is electrical-short ?==
==What is an electrical short?==


Electrical short is when the plus and min are in contact with each other
An electrical short is when the plus and minus are in contact with each other.


This is harmful for the adapter or battery.  
This is harmful for the adapter or battery.  


==electrical-short with (dis)connecting device==
==Electrical short with (dis)connecting device==<!-- Writing (dis)connect indicates either connect or disconnect. Is that what you intended? If you mean just disconnect, delete the (). -->


Some smaller connectors shortcut the power supply if you (dis)connect .
Some smaller connectors shortcut the power supply if you (dis)connect .
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==Car cigarette lighter plug==
==Car cigarette lighter plug==


A Car cigarette lighter plug must have the plus in the middle and the min on the outside.
A car cigarette lighter plug must have the plus in the middle and the minus on the outside.


Some female Car socket in some truck have 24 volt.
Some female car sockets have 24 volts.




Revision as of 15:20, 26 August 2010

Template:Offline content bundle

This page or section needs work on grammar, spelling, clarity and/or layout.You can help by editing!Read more...

What is AC voltage?

AC voltage is voltage that does not have a Plus and Minus terminal on the supply.

AC voltage symbol: NO plus min power.PNG

Other names for AC voltage:

  • Directed power or voltage
  • Sine wave power or voltage
  • Inverter type of power or voltage

AC voltage safety

AC electricity with a voltage less than 50 V (RMS) is called Extra Low Voltage. This voltage is unlikely to give a human being a dangerous electric shock.

What is low voltage?

Other names for low voltage:

  • Shock free power or voltage

What is DC voltage?

DC voltage is voltage that has a Plus and Minus terminal.

DC voltage symbol: Plus min power.PNG

Other names for DC voltage:

  • DC power or voltage
  • Battery type of power or voltage
  • Plus-minus power or voltage


Electric DC polarity: plus and minus

Electricity basics: Marked plus wire

For most kinds of devices it is important to have the right voltage and polarity. Wrong voltage or polarity can destroy a device

How to mark the plus or to find the plus pole:

  • Red is always plus.
  • Painted line on the plus wire, no painted line on the min.
  • Square wire is plus, round wire is minus.
  • Sharp edge is plus, round wire is minus.
  • Knot is plus, no knot is minus.
  • Mark on the plus wire, the plus wire is special.
  • and so on, the plus wire is special or not normal than a normal wire.



These must be in good working order to save your electric material:

  • The voltage.
  • The amperage.
  • The plus and minus position.
  • The type of power, AC or DC.
  • The type of low voltage coax connector.
  • Protect your plug and connector against mechanical pulling force.
  • Take your time to check these 6 items.



Side and middle electric connection


sign on power output or this sign sign on power consumption or this sign harmful for output ? harmful for power consumer ?
Inside MIN outside PLUS.PNG Outside PLUS inside MIN.PNG Inside MIN outside PLUS.PNG Outside PLUS inside MIN.PNG no no
Outside MIN inside PLUS.PNG Inside PLUS outside MIN.PNG Outside MIN inside PLUS.PNG Inside PLUS outside MIN.PNG no no
Inside MIN outside PLUS.PNG Outside PLUS inside MIN.PNG Outside MIN inside PLUS.PNG Inside PLUS outside MIN.PNG no YES !
Outside MIN inside PLUS.PNG Inside PLUS outside MIN.PNG Inside MIN outside PLUS.PNG Outside PLUS inside MIN.PNG no YES !
Plus min power.PNG DC NO plus min power.PNG AC no YES !
NO plus min power.PNG AC Plus min power.PNG DC no YES !

Electric current ampere

amp. on

power output

or this amp. amp. on

power consumer

or this amp. harmful

for output ?

harmful for

power consumer ?

500 mA =0.5 A 500 mA =0.5 A no no
400 mA =0.4 A 500 mA =0.5 A YES ! no
500 mA =0.5 A 400 mA =0.4 A no no

Electric voltage

volt output volt consumer harmful for

output ?

harmful for

power consumer ?

12 V 12 V no no
9 V 12 V no does not work well
3 V 12 V no does not work
12 V 9 V no YES !

Adapter with different connectors

Protect your power supply.

On the left is the power supply output and on the right power receiving device.


.

Inside outside size.PNG

Plus and minus

Power supply with connecting adapters.PNG

Adapter connectors

OUTSIDE

(mm)

INSIDE

(mm)

Shortcut Plug Type

(code)

mark
6.5 1.0 no AA =
6.5 1.75 no AB =
2.5 2.5 YES! A (*) =
3.5 3.5 YES! B (*) =
3.0 1.0 no C =
5.0 2.1 no D =
5.5 2.1 no E =
5.0 2.5 no F =
5.5 2.5 no G =
3.5 1.35 no H =
4.0 1.7 no I =
4.75 1.75 no J =
5.0 1.5 no M =
5.5 1.5 no N =
5.5 5.8 no P =
6.3 3.0 no Q =
7.0 1.0 no R =
2.35 0.75 no S =

(*) Mono jack

What is an electrical short?

An electrical short is when the plus and minus are in contact with each other.

This is harmful for the adapter or battery.

Electrical short with (dis)connecting device

Some smaller connectors shortcut the power supply if you (dis)connect .

(dis)Connect the connector to the device if there is NO power on the plug.

WRONG CONNECTING DEVICE.PNG


Right

Connecting device.PNG


Car cigarette lighter plug

A car cigarette lighter plug must have the plus in the middle and the minus on the outside.

Some female car sockets have 24 volts.


Car cigarette lighter DC Plus and Min.PNG

See also

Interwiki links

external links

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