365-Day Hassle Free Return Policy! - AppliancePartsPros

Author Topic: Safety testing.  (Read 126 times)

Offline Specialist

  • Technician
  • Member Since: May 2012
  • Posts: 132
  • Country: gb
  • Electrical Appliance / Catering Equipment Engineer
    • Buy me a beer through paypal
Safety testing.
« on: March 02, 2013, 07:05:55 AM »
Hey Guys: Just wondering what sort of safety testing you do on Completion of a repair ?. Over here we have no statutory requirements to do any sort of safety testing, either before or after a repair.
Having said that myself & a lot of other Techs do an Earth Loop test on the outlet the appliance runs from before doing a repair and then on completing a repair we do an Earth continuity test & Insulation resistance test on the appliance and test the outlet Earth Loop again before re-connection.
That way it ensures that both ourselves & the customer are as far as possible safe from Electric shock.

Andy
Let Us Fix It Properly.

Offline AJ

  • Technician
    Administrator
  • Member Since: Jun 2007
  • Posts: 9843
  • Country: us
    • ApplianceJunk.com - Appliance Repair
Re: Safety testing.
« Reply #1 on: March 02, 2013, 08:54:01 AM »
How is a earth loop test done?

I just make sure the appliance works before I leave. :)
Hope you find our site helpful.

Offline bigbuck

  • Technician
  • Member Since: Jan 2011
  • Posts: 955
  • Country: us
  • over 30 years repairing appliance
    • Buy me a beer through paypal
Re: Safety testing.
« Reply #2 on: March 02, 2013, 09:08:09 AM »
Never heard of  this safety earth.

Offline Specialist

  • Technician
  • Member Since: May 2012
  • Posts: 132
  • Country: gb
  • Electrical Appliance / Catering Equipment Engineer
    • Buy me a beer through paypal
Re: Safety testing.
« Reply #3 on: March 02, 2013, 09:18:37 AM »
How is a earth loop test done?

I just make sure the appliance works before I leave. :)

Hi AJ: Basically you plug the tester in to the outlet & it tests the resistance of the Earth loop, this includes the reistance of the circuit earth back to your fuseboard, the earth path from your fuseboard to the Earth intake position whether it be an Earth Rod or the suppliers Earth & if a suppliers Earth then that's tested back to the suppliers Earthing point as well. The idea being that the lower the resistance of the Loop then the faster the Circuit protective device will activate in the event of a short or leak to Earth on the appliance & the safer you are, imagine you repair an appliance & check that it has a good Earth (Ground) connection but the outlet has a bad Earth. In the event of a Ground fault the current has nowhere to go & either you or your customer are potentially in for a nasty surprise.



Andy
« Last Edit: March 02, 2013, 09:22:08 AM by Specialist »
Let Us Fix It Properly.

Offline Specialist

  • Technician
  • Member Since: May 2012
  • Posts: 132
  • Country: gb
  • Electrical Appliance / Catering Equipment Engineer
    • Buy me a beer through paypal
Re: Safety testing.
« Reply #4 on: March 02, 2013, 09:25:36 AM »
Never heard of  this safety earth.


Hi Buck: Don't you have Earth (Ground) wires on your Cookers, Driers, Microwaves & Washers etc ?
Let Us Fix It Properly.

Offline AJ

  • Technician
    Administrator
  • Member Since: Jun 2007
  • Posts: 9843
  • Country: us
    • ApplianceJunk.com - Appliance Repair
Re: Safety testing.
« Reply #5 on: March 02, 2013, 09:37:46 AM »
How many bad grounds have you found?
Hope you find our site helpful.

Offline Specialist

  • Technician
  • Member Since: May 2012
  • Posts: 132
  • Country: gb
  • Electrical Appliance / Catering Equipment Engineer
    • Buy me a beer through paypal
Re: Safety testing.
« Reply #6 on: March 02, 2013, 09:48:16 AM »
How many bad grounds have you found?

Unfortunately mate, it's quite common especially in older properties. I went to look at a dead Flamerite fire 2 days ago & as usual plugged in my Loop tester 1st, only to find that the wiring on the outlet was reversed & the Earth open circuit. Told the customer what I found & he asked me to check his other outlets while I was there, they all check the same so the problem is probably in the Fuseboard. The only correctly wired outlet was the one on the cooker isolator, anyway upshot of it is that he's away until next Monday but has asked me to go back Tuesday & rectify the problems. Whenever I find problems like this I won't repair the appliance either until they have someone in to sort the Electrics out, that can either be me or another contractor as long as it's made safe.

Andy
Let Us Fix It Properly.

Offline bigbuck

  • Technician
  • Member Since: Jan 2011
  • Posts: 955
  • Country: us
  • over 30 years repairing appliance
    • Buy me a beer through paypal
Re: Safety testing.
« Reply #7 on: March 02, 2013, 10:02:16 AM »
Yep, never heard of anyone having problems or testing it so much.

Offline bigbuck

  • Technician
  • Member Since: Jan 2011
  • Posts: 955
  • Country: us
  • over 30 years repairing appliance
    • Buy me a beer through paypal
Re: Safety testing.
« Reply #8 on: March 02, 2013, 10:08:42 AM »
Do you have a picture of this ground loop tester?
Author Topic: safety test of electronic appliances  (Read 144 times)
Same as this topic about a year ago:
« Last Edit: March 02, 2013, 10:23:18 AM by bigbuck »

Offline Specialist

  • Technician
  • Member Since: May 2012
  • Posts: 132
  • Country: gb
  • Electrical Appliance / Catering Equipment Engineer
    • Buy me a beer through paypal
Re: Safety testing.
« Reply #9 on: March 02, 2013, 10:29:21 AM »
Yep, never heard of anyone having problems or testing it so much.

Hi Buck: Right I see what you mean now, unfortunately it's not uncommon over here. 1 of my colleagues went to an Apartment block to look at a cooker where customer was getting electric shocks, checked the Earth on the connection unit & it showed over a Kilohm should be max 1.16 ohms for that type of system & protective device . He eventually discovered that the whole block had an open Earth & it had been like this since the Electric company changed the supply cable, it only came to light when the customers cooker had a short due to a crushed wire.

Andy
Let Us Fix It Properly.

 

Testing Refrigerator and Freezer Compressors

Started by Icehouse

Replies: 0
Views: 40
Last post June 08, 2009, 01:28:15 PM
by Icehouse
Need help testing our mobile app...

Started by AJ

Replies: 9
Views: 98
Last post September 14, 2011, 04:01:25 PM
by AJ
Troubleshooting the Standing Pilot Safety System

Started by Icehouse

Replies: 0
Views: 15
Last post December 31, 2011, 11:04:57 AM
by Icehouse
safety test of electronic appliances

Started by ramwash

Replies: 11
Views: 154
Last post March 19, 2012, 12:38:04 AM
by ramwash
MOVED: Testing washer timer

Started by AJ

Replies: 0
Views: 25
Last post April 19, 2012, 06:41:41 PM
by AJ
Testing my new iPhone

Started by AJ

Replies: 28
Views: 127
Last post November 18, 2012, 11:54:46 PM
by Nwtech