Pro Certs Software have updated their cable size calculator for improved usability, a smoother user experience and bug fixes. A cable size calculator is a handy electrical app to have at your side for when the need arises to carry out a quick cable size calculation while out on site, during a site survey or in the office for circuit design... 

For single phase kVA calculations or conversions we need to know two of the three values of kVA, Volts and Amps. Calculations could be kVA from Amps and Volts, Amps from kVA and Volts or Volts from kVA and Amps. For three phase kVA calculations we also need...

Local isolation is generally required for all items of electrical equipment for maintenance, service & repair. Should a fault occur within an electrical appliance causing an MCB or RCBO to trip, the facility to isolate the kitchen electrical appliance from the electrical circuit would enable the MCB or RCBO to be reset. Methods of local isolation can be achieved by . . . 

There seems to be mixed opinions on the minimum distance a socket can be from a sink, some think it doesn't matter if it has 30mA RCD protection and others say different, but the truth is . . .

We have a number 60947-2 Zs charts from different MCCB manufacturers. We have included the Max Zs charts for 60947-2 MCCB's in an app, for more info or to download visit . . .  

We have updated our Max Zs Values app to the new 2019 version, it now runs faster and smoother with a few added extras...