Max Zs Values
Zs Values 18th Edition BS 7671
HK$ 68.00
3.1.16for iPhone, iPad and more
Age Rating
Max Zs Values 螢幕截圖
About Max Zs Values
Calculate and look up the maximum permitted Zs value ( earth loop impedance ) to BS 7671. Max Zs Values also includes the 80% temperature adjusted values and a some MCCB 60947-2 manufacture Zs charts.
- 100% BS 7671 Zs Values
- 80% On Site Guide Zs Values
- Printable 60947-2 MCCB Zs Tables
- 0.4 (s) second disconnection times
- 0.2 (s) second disconnection times
- 5 (s) second disconnection times
> Common BS EN Devices:
Scroll through the list of protective devices and select the device rating to calculate the maximum permitted Zs value for your selected protective device and rating combination.
> 60947-2 MCCB's Zs Tables:
Look up the maximum permitted Zs tables for a selection of MCCB manufacture devices (some).
Maximum Zs Features:
+ Maximum Disconnection Times
+ BS 7671 18th Edition Zs Tables
+ Fuse's
+ MCB's
+ RCBO's
+ RCD's in TT earthing systems
+ Max REC Ze values
+ 100% values
+ 80% values
+ 0.4 second disconnection times
+ 0.2 second disconnection times
+ 5 second disconnection times
+ Uo 55v (U 110v) single phase and Uo 63.5v (three
phase) Zs values
+ BS EN 60947-2 MCCB manufacture device charts
(some)
There is now a new "Zs Converter" to convert old Zs values to the new 18th edition 230v Cmin Zs values.
A maximum Zs calculator for iPhone and iPad.
Check out our collection of electrical apps such as the "Pro Certs" Electrical Certification App for iPad.
- 100% BS 7671 Zs Values
- 80% On Site Guide Zs Values
- Printable 60947-2 MCCB Zs Tables
- 0.4 (s) second disconnection times
- 0.2 (s) second disconnection times
- 5 (s) second disconnection times
> Common BS EN Devices:
Scroll through the list of protective devices and select the device rating to calculate the maximum permitted Zs value for your selected protective device and rating combination.
> 60947-2 MCCB's Zs Tables:
Look up the maximum permitted Zs tables for a selection of MCCB manufacture devices (some).
Maximum Zs Features:
+ Maximum Disconnection Times
+ BS 7671 18th Edition Zs Tables
+ Fuse's
+ MCB's
+ RCBO's
+ RCD's in TT earthing systems
+ Max REC Ze values
+ 100% values
+ 80% values
+ 0.4 second disconnection times
+ 0.2 second disconnection times
+ 5 second disconnection times
+ Uo 55v (U 110v) single phase and Uo 63.5v (three
phase) Zs values
+ BS EN 60947-2 MCCB manufacture device charts
(some)
There is now a new "Zs Converter" to convert old Zs values to the new 18th edition 230v Cmin Zs values.
A maximum Zs calculator for iPhone and iPad.
Check out our collection of electrical apps such as the "Pro Certs" Electrical Certification App for iPad.
Show More
最新版本3.1.16更新日誌
Last updated on 2024年02月09日
歷史版本
- Added Schneider TeSys MCCB max Zs table.
- New PDF viewer to fix the pinch/zoom/scroll bug when viewing PDF tables.
- A few UI improvements.
- New PDF viewer to fix the pinch/zoom/scroll bug when viewing PDF tables.
- A few UI improvements.
Show More
Version History
3.1.16
2024年02月09日
- Added Schneider TeSys MCCB max Zs table.
- New PDF viewer to fix the pinch/zoom/scroll bug when viewing PDF tables.
- A few UI improvements.
- New PDF viewer to fix the pinch/zoom/scroll bug when viewing PDF tables.
- A few UI improvements.
3.1.12
2022年08月24日
A few UI improvements and minor optimisations.
3.1.11
2022年08月11日
- Added a new "Zs Converter" to convert old Zs values to the 18th edition 230v Cmin Zs values.
- Added Wylex NHG MCCB Zs table.
- Added Wylex NHG MCCB Zs table.
3.1.10
2022年04月05日
Minor bug fixes.
3.1.9
2022年02月01日
Selection of "Device" bug fix and updated app icon.
3.1.8
2022年01月23日
Small bug fixes and some behind the scenes optimisations.
3.1.7
2021年08月19日
Added manufacture BS 3871 Type 4 max Zs values.
3.1.6
2021年02月26日
Added support for more screen sizes and made some layout improvements.
3.1.4
2020年12月12日
iOS update & some minor improvements.
3.1.3
2020年09月24日
Added: MCCB Explanation of Settings Symbols,
Added: DNO Ze Values & Earthing System Types Diagram,
Changed: Reference to REC changed to DNO / DSO.
Added: DNO Ze Values & Earthing System Types Diagram,
Changed: Reference to REC changed to DNO / DSO.
3.1.2
2020年04月17日
New and improved UI, printable 60974-2 MCCB charts, new integral document viewer.
3.1.1
2019年09月06日
V: 3.1.1 - 02/09/2019
> Added a print function to PDF charts.
> Added some more manufacture 60947-2 MCCB Zs charts.
> Reduced app size so it runs faster and takes up less storage space.
> Added a print function to PDF charts.
> Added some more manufacture 60947-2 MCCB Zs charts.
> Reduced app size so it runs faster and takes up less storage space.
3.1
2019年03月10日
Thank you for downloading Max Zs Values. This update brings new UI improvements and bug fixes. Your feedback is important to us, please email any improvement ideas to support@pro-certs.com or visit procertssoftware.com
3.0
2019年02月01日
New and improved 2019 version. BS 7671 18th edition update with improvements and extras.
2.1
2015年10月01日
V 2.0 - 27/09/2015: Updated Zs values for BS 7671 amendment 3 2015.
V 2.1 - 28/09/2015: Fixed share bug.
V 2.1 - 28/09/2015: Fixed share bug.
1.5
2012年10月31日
Database update of values
1.4
2012年10月03日
iOS 6 ready.
1.3
2012年07月12日
We have fixed a bug that when selecting any BS-88 devices , the results would not show.
Coming soon update for iOS 6
Coming soon update for iOS 6
1.2
2012年05月03日
An update to the main database and more protective devices added.
1.1
2012年02月18日
A New screenshot of the app is available when sharing with friends by email.
Share by Facebook and Twitter now go to the correct login page. We also made a few copy changes to the headings and some small tweaks. Enjoy and Thank you
Share by Facebook and Twitter now go to the correct login page. We also made a few copy changes to the headings and some small tweaks. Enjoy and Thank you
1.0
2012年02月11日
Max Zs Values FAQ
點擊此處瞭解如何在受限國家或地區下載Max Zs Values。
以下為Max Zs Values的最低配置要求。
iPhone
須使用 iOS 11.0 或以上版本。
iPad
須使用 iPadOS 11.0 或以上版本。
iPod touch
須使用 iOS 11.0 或以上版本。
Max Zs Values支持英文
