Screenshots

Description

Calculate maximum permitted Zs values (earth loop impedance) as per BS7671, also includes temperature adjusted values.

Using the picker wheel select the protective device (fuse's, MCB's, RCBO's) and device rating to calculate the maximum permitted Zs value for your selected device.

RESULTS CALCULATE:
+ BS7671 Amendment 3 2015 values
+ BS EN device's
+ Fuse's
+ MCB's
+ RCBO's
+ RCD's
+ Ze + R1+R2 = Zs
+ 100% values
+ 80% values
+ 0.4 second disconnection times
+ 0.2 second disconnection times
+ 5 second disconnection times

Search for 'Pro Certs Software' in the app store for our other electrical apps designed for the electrical industry aimed at electricians and electrical engineers.

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http://www.electrician-apps.com
http://www.procertssoftware.com

What's New

Version 2.1

V 2.0 - 27/09/2015: Updated Zs values for BS 7671 amendment 3 2015.
V 2.1 - 28/09/2015: Fixed share bug.

Ratings and Reviews

comedy explorer

Very handy

Works well for me.

Cavemanflynn

Wow

I have the whole Pro-Certs range of iPhone software. If they keep producing quality items like this I can throw away my onsite guide! Keep up the good work!! ( can wait to see if you can make software to bill my customers as well!! Lol)

Robogxr

Brilliant !!

A first class app, the best one of this type, and i have tried them all.
Great communication from the devs, they are going to add some manufacturer specific devices for me too in a free update.

Information

Seller
Pro Certs Software Ltd
Size
10.5 MB
Category
Reference
Compatibility
Requires iOS 6.0 or later. Compatible with iPhone, iPad and iPod touch.
Languages
English
Age Rating
Rated 4+
Copyright
© 2012 Pro Certs Software Ltd
Price
£1.99

Supports

  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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