500 - 1,000 downloads

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CableCheck - Cable Size Calculator

Calculate correct cable size
for a New Single Circuit
as done in Appendix 4 of
BS 7671 : 2008
(IET 17th Edition Regs)

No Need to refer to Regs!!!
No need to waste valuable time
looking up cable charts
or correction Factors.

CableCheck does it all for you!!!!

Works through a Cable calculation
in stages, as laid out in
Appendix 4 of BS 7671 : 2008.
This is the correct way to complete
an accurate calculation, making this
Application ideal for not
only Design Enginners and
Electricians, But also Students
currently taking ...
City & Guilds 2330, 2382 & 2391.

Works for Copper cables up to 240mm
For circuits protected by
MCB's/RCBO's, (Up to 125A)
BS 3036 Fuses (Up to 60A)
BS 88 Fuses (Up to 800A)
BS 1361 Fuses (Up to 100A)
MCCB's (Up to 800A)

Suitable for All Domestic, Commercial
and Lite Industrial Installations.

Calculates Volt Drop
3% Max for Lighting,
5% Max for all other.
Calculates R1+R2 and Zs
Calculates disconnection time for Protective Device.
Calculates Min Required CPC Size.

Helps you select correct cable Size
for tabulated Current.

Will warn you if volt drop Too
High, and let you select
Larger Conductor.

Applies Correction factors for you!!!
Based upon Chosen Installation Method,
Ambient Temperature etc.

Works for following Cable Types :
Flat Twin PVC
SingleCore PVC
MultiCore PVC
SingleCore XPLE
MultiCore XLPE

Select from a wide range of installation
Methods as listed in Appendix 4 of Regs.
Clipped Direct
Conduit / Trunking
Methods 100 - 103
Cable Tray
Free Air
Direct in Ground
+ More...

If you would like any features added,
or would like a specific app created
for Android Market, then please email
us at

Tags: bs76712008, excel cable calculation, bs 7671, cable size calculator, cable ratings swa, cablecheck, free current cable calculation excel, cable tray calculation excel, excel cable sizing chart, bs7671 protective conductor calculation.

Recently changed in this version

BS 1361 Fuses up to 100A Added.
Icons Improved.

Landscape Views added

BS 88 Fuses Increased to 800A
MCCB's Added Up to 800A
Cable Sizes increased to 240mm

Comments and ratings for CABLE CALCULATOR BS7671:2008
  • (59 stars)

    by Andy Clayton on 14/03/2013

    When's that happening?

  • (59 stars)

    by A Google User on 06/07/2012

    Seems good. Would be nice for a few extra choices like selecting supply type to auto fill max ze box, give resistance values to be expected during continuity test for radial's and ring final circuit's. Worth it's 99p though.

  • (59 stars)

    by Bryan on 16/05/2012

    where are the Mccbs not in the list ? no good for submains from a panel board if not added

  • (59 stars)

    by JSV on 16/09/2011

    For 99p useful as an onsite guide and reasonably accurate if you know what your doing. Could see being very useful for domestic, commercial limited :)

  • (59 stars)

    by Evan on 15/09/2011

    Does not calculate ring curcuits correctly. I used instation 101 and then it asks fot insulation deepth.

  • (59 stars)

    by Mac on 22/05/2011

    Needs to have calcs for BS:1361 added. Other than that, a good and useful program.

  • (59 stars)

    by Rob on 13/05/2011

    A very useful little tool, quick and accurate enough to use on site