Our Valued Sponsor
OpinionsConsumer ReviewsGuides and How TosCoffeeGeek ReviewsResourcesForums
Espresso: Espresso Mods and Restorations
Electrical shock from machine
Commercial Equipment
Nuova Simonelli, La Marzocco, Rancilio. Nationwide installation. Instant financing options.
www.seattlecoffeegear.com
 
Not Logged in: Log In to Postlog in
New Topics updated topics   New Posts new posts   Unanswered Posts new unanswered  
Search Discussion Board search   Discussion Board FAQ faq   Signup sign up  
Discussions > Espresso > Espresso Mods > Electrical shock...  
view previous topic | view next topic | view all topics
showing page 2 of 2 first page previous page
Author Messages
Stratocaster
Senior Member


Joined: 15 Apr 2011
Posts: 12
Location: Port Elizabrth South Africa
Expertise: Professional

Espresso: Breville 900d
Grinder: San Marco
Vac Pot: No
Drip: No
Roaster: No
Posted Mon Dec 10, 2012, 12:49pm
Subject: Re: Electrical shock from machine
 

You are getting a shock because of (a) there is an electrical leakage taking place via a leakage path that can be a very high Impedance, or very low which can be lethal. (b) You have no earth wire to divert the leakage to earth instead of via you. Unless double insulated, ie a plastic casing, any electrical device running off of the mains should have a third wire for earthing the device. I was called out to look at 2 group San Marco that was supposed to be giving the staff shocks. It turned out that the San Marco was the only thing in the bar that was properly earthed, everything else was floating due to a earth wiring fault including the staff. Try an analogue meter set for 500v full scale between the casing and a known earth, if you switch through the ranges say down to 20 volt full scale and the needle stays in the same place, it is a leak via a high impedance. If the needle flies of the scale you've been very lucky !.  Franko
back to top
 View Profile Link to this post
showing page 2 of 2 first page previous page
view previous topic | view next topic | view all topics
Discussions > Espresso > Espresso Mods > Electrical shock...  
New Topics updated topics   New Posts new posts   Unanswered Posts new unanswered     Search Discussion Board search   Discussion Board FAQ faq   Signup sign up  
Not Logged in: Log In to Postlog in
Discussions Quick Jump:
Symbols: New Posts= New Posts since your last visit      No New Posts= No New Posts since last visit     Go to most recent post= Newest post
Forum Rules:
No profanity, illegal acts or personal attacks will be tolerated in these discussion boards.
No commercial posting of any nature will be tolerated; only private sales by private individuals, in the "Buy and Sell" forum.
No SEO style postings will be tolerated. SEO related posts will result in immediate ban from CoffeeGeek.
No cross posting allowed - do not post your topic to more than one forum, nor repost a topic to the same forum.
Who Can Read The Forum? Anyone can read posts in these discussion boards.
Who Can Post New Topics? Any registered CoffeeGeek member can post new topics.
Who Can Post Replies? Any registered CoffeeGeek member can post replies.
Can Photos be posted? Anyone can post photos in their new topics or replies.
Who can change or delete posts? Any CoffeeGeek member can edit their own posts. Only moderators can delete posts.
Probationary Period: If you are a new signup for CoffeeGeek, you cannot promote, endorse, criticise or otherwise post an unsolicited endorsement for any company, product or service in your first five postings.
Don't suffer bad espresso
Package deals on the best machines from Izzo, Quick Mill, VBM, La Marzocco & more.
www.clivecoffee.com
Home | Opinions | Consumer Reviews | Guides & How Tos | CoffeeGeek Reviews | Resources | Forums | Contact Us
CoffeeGeek.com, CoffeeGeek, and Coffee Geek, along with all associated content & images are copyright ©2000-2014 by Mark Prince, all rights reserved, unless otherwise indicated. Content, code, and images may not be reused without permission. Usage of this website signifies agreement with our Terms and Conditions. (0.162750005722)
Privacy Policy | Copyright Info | Terms and Conditions | CoffeeGeek Advertisers | RSS | Find us on Google+