m (Robot: Automated text replacement (-==See Also== +== See also ==))
(not all such connectors are coax)
(33 intermediate revisions by 16 users not shown)
Line 1: Line 1:
{{Olpc bundle}}
{{Offline content bundle}}
{{Copyedit}}
{{Copyedit}}


==What is AC-voltage==
Some really nice and useful information on this web site. Also I conceive the style and design holds superb features.


*[[Electricity basics]]
== AC voltage safety  ==
 
AC-voltage is voltage where there is not a Plus and Minus terminal on the supply.
 
AC-voltage symbol [[Image:NO plus min power.PNG|50px]]


Other Names for "AC-voltage"
AC electricity with a voltage less than 50 V (RMS) is called '''Extra Low Voltage'''. This voltage is unlikely (but NOT guaranteed) to give a human being a dangerous electric shock.


*Directed power or voltage
==What is low voltage?==
*Sine wave power or voltage
*Inverter type of power or voltage


== AC-voltage safety ==
*[[Electricity basics]]<!-- Add content? -->
 
*[[Electricity safety basics]]<!-- Add content? -->
Voltage under the 24 volt is very unlikely to give a dangerous electric shock.
 
==What is low voltage==
 
*[[Electricity basics]]


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 (the chemistry arrangements in batteries are necessarily DC)
*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|150px]]  


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. (This is a long established convention, but is not always observed.  Check with a voltmeter.)
      
      
*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? -->   
 
 






These must be in good working order to save your electric material:
Connectors must be in good working order, and properly set up, to save your electric devices and reduce the chance of fire or other bad outcome:


*The voltage
*The voltage.  Connectors and wires have limits which should never be exceeded.


*The amperage
*The amperage. Connectors and wires have limits which should be exceeded.


*The PLUS and MIN position
*The plus and minus position.  The term commonly used is polarity, for DC circuits; AC circuits have no polarity.


*The type of power AC or DC  
*The type of power, AC or DC. Getting this wrong is likely to damage electric circuits.


*The type of low voltage coax connector
*The type of low voltage connector.  Mismatched connectors almost never give satisfactory results, and often are physically incompatible.
 
*protect your plug and connector against mechanical puling force
 
*take your time to check these 6 items


*Protect your plug and connector against mechanical pulling force. This is commonly called strain relief, which if done properly reduced wiring damage due to vibration or twisting or ....  Unexpected separation of the connectors is generally done with a locking arrangement of some kind. 


*Take the time to check each of these issues.  Failure to do so may cause fire or electrocution.




Line 120: Line 104:
|}
|}


==electric current ampere ==
==Electric current ampere ==
{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
! amp. on  
! amp. on  
Line 134: Line 118:
|-
|-


| 500mA || =0.5A|| 500mA || =0.5A|| no|| no
| 500 mA || =0.5 A|| 500 mA || =0.5 A|| no|| no


|-
|-


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


|-
|-


| 500mA || =0.5A|| 400mA || =0.4A|| no|| no
| 500 mA || =0.5 A|| 400 mA || =0.4 A|| no|| no


|}
|}


==electric voltage==
<nowiki>*</nowiki> - Depending on how your output device is made, this condition may cause the output device (usually some kind of wall plug adapter) to burn out. The better made ones will have some sort of over-current protection built in, either in the form of a thermal fuse (self resetting), or a current limiter.
 
==Electric voltage==


{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
Line 161: Line 147:
|-
|-


|| 12V|| 12V|| no|| no
|| 12 V|| 12 V|| no|| no


|-
|-


|| 9V|| 12V|| no|| does not work well
|| 9 V|| 12 V|| no|| does not work well


|-
|-


|| 3V|| 12V|| no|| does not work
|| 3 V|| 12 V|| no|| does not work


|-
|-


|| 12V|| 9V|| no|| YES !
|| 12 V|| 9 V|| no|| YES !


|-
|-
Line 179: Line 165:
|}
|}


== 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.




Line 189: Line 175:
.
.


[[Image:inside outside size.PNG|300px]]
[[Image:inside outside size.PNG|200px]]


Plus and min
Plus and minus


[[Image:Power_supply_with_connecting_adapters.PNG|500px]]
[[Image:Power_supply_with_connecting_adapters.PNG|500px]]
Line 197: Line 183:
''' Adapter connectors '''  
''' Adapter connectors '''  
{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
! OUTSIDE
(mm)
! INSIDE
! INSIDE


mm
(mm)
! OUTSIDE
! Shortcut
! Plug Type


mm
(code)
! Shortcut
! type plug
! mark
! mark


|-  
|-  
|| 2,5|| 2,5|| YES!|| 2,5 mono|| =
 
|| 6.5|| 1.0|| no|| AA || =
 
|-
 
|| 6.5|| 1.75|| no|| AB || =
 
|-
 
|| 2.5|| 2.5|| YES!|| A (*) || =


|-
|-


|| 3,5|| 3,5|| YES!|| 3,5 mono|| =
|| 3.5|| 3.5|| YES!|| B (*) || =


|-  
|-  


|| 0,75|| 2,35|| no|| S|| =
|| 3.0|| 1.0|| no|| C|| =


|-  
|-  


|| 1,40|| 3,5|| no|| H|| Nokia
|| 5.0|| 2.1|| no|| D|| =


|-  
|-  


|| 1,7|| 4,0|| no|| I|| =
|| 5.5|| 2.1|| no|| E|| =


|-  
|-  


|| 1,8|| 4,8|| no|| J|| =
|| 5.0|| 2.5|| no|| F|| =


|-  
|-  


|| 2,1|| 5,0|| no|| D|| =
|| 5.5|| 2.5|| no|| G|| =


|-  
|-  


|| 1,5|| 5,5|| no|| N|| =
|| 3.5|| 1.35|| no|| H|| =


|-  
|-  


| 2,5 || 5,5|| no|| G|| =
|| 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|| =


|}
|}


==What is electrical-short ?==
(*) Mono jack


Electrical short is when the plus and min are in contact with each other
=== Type A USB ===
 
Add a picture with positive and negative labelled (in red (5+) and black) on a female Type A USB connector.
[[image:femaleUSB.png]]
 
 
<gallery>
Image:femaleUSB.png|Female, Type A,USB connector with pin diagram.
</gallery>
 
==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.  
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 .
Line 267: Line 303:
==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.




Line 278: Line 314:
*[[Power and energy basics]]
*[[Power and energy basics]]
*[[Electrical wiring and switching]]
*[[Electrical wiring and switching]]
== Interwiki links ==
* [[Wikipedia:DC Power Connectors]]


[[Category:How tos]]
[[Category:How tos]]
Line 284: Line 324:


external links
external links
{{Wikipedia p|Coaxial DC Power Connectors}}

Revision as of 06:26, 3 September 2018

Template:Offline content bundle

Some really nice and useful information on this web site. Also I conceive the style and design holds superb features.

AC voltage safety

AC electricity with a voltage less than 50 V (RMS) is called Extra Low Voltage. This voltage is unlikely (but NOT guaranteed) 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 (the chemistry arrangements in batteries are necessarily DC)
  • 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. (This is a long established convention, but is not always observed. Check with a voltmeter.)
  • 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.


Connectors must be in good working order, and properly set up, to save your electric devices and reduce the chance of fire or other bad outcome:

  • The voltage. Connectors and wires have limits which should never be exceeded.
  • The amperage. Connectors and wires have limits which should be exceeded.
  • The plus and minus position. The term commonly used is polarity, for DC circuits; AC circuits have no polarity.
  • The type of power, AC or DC. Getting this wrong is likely to damage electric circuits.
  • The type of low voltage connector. Mismatched connectors almost never give satisfactory results, and often are physically incompatible.
  • Protect your plug and connector against mechanical pulling force. This is commonly called strain relief, which if done properly reduced wiring damage due to vibration or twisting or .... Unexpected separation of the connectors is generally done with a locking arrangement of some kind.
  • Take the time to check each of these issues. Failure to do so may cause fire or electrocution.


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

* - Depending on how your output device is made, this condition may cause the output device (usually some kind of wall plug adapter) to burn out. The better made ones will have some sort of over-current protection built in, either in the form of a thermal fuse (self resetting), or a current limiter.

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

Type A USB

Add a picture with positive and negative labelled (in red (5+) and black) on a female Type A USB connector. FemaleUSB.png


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

Cookies help us deliver our services. By using our services, you agree to our use of cookies.