Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Main Forums
Electrical Inspection & Testing Forum
mA Tong Tester recommendation cheapo.
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="UNG" data-source="post: 502776" data-attributes="member: 8931"><p>Testing for earth leakage on the main earth cable is ignoring all the possible parallel leakage paths at the metal accessory back boxes.</p><p></p><p>Only reliable way to measure the leakage current is to put a tong tester round the incoming live and neutral to measure the differential (earth leakage) current</p><p></p><p>I would normally suspect a fault with the fridge freezer but the tripping seems too infrequent to suggest the auto defrost element is failing or has failed, the auto defrost usually kicks in every 24 - 72 hours but varies across different appliances and doesn't always trip the RCD / RCBO every time and for that reason can be difficult to identify as the fault as once tripped the auto defrost relay resets</p></blockquote><p></p>
[QUOTE="UNG, post: 502776, member: 8931"] Testing for earth leakage on the main earth cable is ignoring all the possible parallel leakage paths at the metal accessory back boxes. Only reliable way to measure the leakage current is to put a tong tester round the incoming live and neutral to measure the differential (earth leakage) current I would normally suspect a fault with the fridge freezer but the tripping seems too infrequent to suggest the auto defrost element is failing or has failed, the auto defrost usually kicks in every 24 - 72 hours but varies across different appliances and doesn't always trip the RCD / RCBO every time and for that reason can be difficult to identify as the fault as once tripped the auto defrost relay resets [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Electrical Inspection & Testing Forum
mA Tong Tester recommendation cheapo.
Top