Home |
Search |
Today's Posts |
|
Home Repair (alt.home.repair) For all homeowners and DIYers with many experienced tradesmen. Solve your toughest home fix-it problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to alt.home.repair
|
|||
|
|||
Why do they have a 3-prong plug
Why do they have a 3-prong plug on the power supply for the laptop
when all the surfaces are plastic or rubber? It couldn't be for parts beyond the black box becasue the wire from the box to the laptop is just two wires. Is it just to make people who are afraid of computers and elelctricity be less afraid? |
#2
Posted to alt.home.repair
|
|||
|
|||
Why do they have a 3-prong plug
On Wed, 22 Mar 2017 22:28:24 +0200
Micky wrote: Why do they have a 3-prong plug on the power supply for the laptop when all the surfaces are plastic or rubber? It couldn't be for parts beyond the black box becasue the wire from the box to the laptop is just two wires. Is it just to make people who are afraid of computers and elelctricity be less afraid? It is a law/rule/regulation, silly. |
#3
Posted to alt.home.repair
|
|||
|
|||
Why do they have a 3-prong plug
On 2017-03-22 4:31 PM, burfordTjustice wrote:
On Wed, 22 Mar 2017 22:28:24 +0200 Micky wrote: Why do they have a 3-prong plug on the power supply for the laptop when all the surfaces are plastic or rubber? It couldn't be for parts beyond the black box becasue the wire from the box to the laptop is just two wires. Is it just to make people who are afraid of computers and elelctricity be less afraid? It is a law/rule/regulation, silly. My last two laptops have only had two prongs. -- Froz.... |
#4
Posted to alt.home.repair
|
|||
|
|||
Why do they have a 3-prong plug
On Wednesday, March 22, 2017 at 4:28:28 PM UTC-4, Micky wrote:
Why do they have a 3-prong plug on the power supply for the laptop when all the surfaces are plastic or rubber? It couldn't be for parts beyond the black box becasue the wire from the box to the laptop is just two wires. Is it just to make people who are afraid of computers and elelctricity be less afraid? Why are you asking the same question you asked on March 8, which resulted in a thread 22 posts long? Cindy Hamilton |
#5
Posted to alt.home.repair
|
|||
|
|||
Why do they have a 3-prong plug
On 03/22/2017 03:54 PM, Cindy Hamilton wrote:
On Wednesday, March 22, 2017 at 4:28:28 PM UTC-4, Micky wrote: Why do they have a 3-prong plug on the power supply for the laptop when all the surfaces are plastic or rubber? It couldn't be for parts beyond the black box becasue the wire from the box to the laptop is just two wires. Is it just to make people who are afraid of computers and elelctricity be less afraid? Why are you asking the same question you asked on March 8, which resulted in a thread 22 posts long? Cindy Hamilton Like most people, he already knows the answer so he is just waiting for someone else to confirm. May take 1000 opposite replies to appear before finally he gets the "right" answer which is of course wrong. |
#6
Posted to alt.home.repair
|
|||
|
|||
Why do they have a 3-prong plug
On 03/22/2017 04:28 PM, Micky wrote:
Why do they have a 3-prong plug on the power supply for the laptop when all the surfaces are plastic or rubber? It couldn't be for parts beyond the black box becasue the wire from the box to the laptop is just two wires. Is it just to make people who are afraid of computers and elelctricity be less afraid? Just a wild guess but maybe some sort of built-in surge or over-voltage suppression? |
#7
Posted to alt.home.repair
|
|||
|
|||
Why do they have a 3-prong plug
On 3/23/17 5:02 AM, Jon wrote:
On 03/22/2017 04:28 PM, Micky wrote: Why do they have a 3-prong plug on the power supply for the laptop when all the surfaces are plastic or rubber? It couldn't be for parts beyond the black box becasue the wire from the box to the laptop is just two wires. Is it just to make people who are afraid of computers and elelctricity be less afraid? Just a wild guess but maybe some sort of built-in surge or over-voltage suppression? That or some marketing suit figuring three prongs makes it look more serious;-) -- It's reported that ignorance of math is growing by geometric progression, whatever that is. - Robert Brault |
#8
Posted to alt.home.repair
|
|||
|
|||
Why do they have a 3-prong plug
On Wed, 22 Mar 2017 16:41:49 -0400
FrozenNorth wrote: On 2017-03-22 4:31 PM, burfordTjustice wrote: On Wed, 22 Mar 2017 22:28:24 +0200 Micky wrote: Why do they have a 3-prong plug on the power supply for the laptop when all the surfaces are plastic or rubber? It couldn't be for parts beyond the black box becasue the wire from the box to the laptop is just two wires. Is it just to make people who are afraid of computers and elelctricity be less afraid? It is a law/rule/regulation, silly. My last two laptops have only had two prongs. Oh dear..you is a Criminal...watch out for david brooks to be peeping in your windows, |
#9
Posted to alt.home.repair
|
|||
|
|||
Why do they have a 3-prong plug
On Thursday, March 23, 2017 at 4:02:39 AM UTC-5, Jon wrote:
On 03/22/2017 04:28 PM, Micky wrote: Why do they have a 3-prong plug on the power supply for the laptop when all the surfaces are plastic or rubber? It couldn't be for parts beyond the black box becasue the wire from the box to the laptop is just two wires. Is it just to make people who are afraid of computers and elelctricity be less afraid? Just a wild guess but maybe some sort of built-in surge or over-voltage suppression? It's more than likely there to shunt the electrical noise to ground that's produced by the switching power supply. Another thing is that the power supplies are made to meet the specifications of multiple jurisdictions and have an IEC connector which has a ground/earth connection and works with different power cords and voltages. Every laptop I have including my Chromebook operates on 19 volts DC and uses a switching power supply which must meet FCC specs for RF interference. If you have a little pocket AM/FM radio, switch it to AM and place it next to a plugged in laptop power supply and hear the noise. There is also the problem of ESD,"Electrostatic Discharge" that grounding can help control. Anyway, there are some good explanations to be found on The Interweb. ヽ(ヅ)ノ http://electronics.stackexchange.com...apter-grounded http://tinyurl.com/k2w4vbb [8~{} Uncle Power Monster |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
2 prong plug made into working 3 prong plug? | Home Repair | |||
2 prong plug made into working 3 prong plug? | Home Repair | |||
2 prong plug made into working 3 prong plug? | Home Repair | |||
2 prong plug made into working 3 prong plug? | Home Repair | |||
2 prong plug made into working 3 prong plug? | Home Repair |