3 phase

Three Phase Installations

Three phase power is used where there is a need for larger electrical installation which is more power hungry. It is also used to power large motors and other heavy loads. A three-phase system is generally more economical than others because it uses less conductor material to transmit electric power than equivalent single-phase or two-phase systems at the same voltage.

A three phase supply provides up to 400 volts of power as opposed to the standard domestic power output of 230 volts.
If you are unsure of the circuitry that you require for individual devices or throughout your building we can provide you with a comprehensive audit of your building and advise on the safety of your electrical supply. We can also carry out any remedial electrical installations that you may need.

Rewiring industrial, manufacturing workshops with 3-phase power?

When thinking about rewiring industrial, manufacturing workshops and warehouses, please ask us for advice about whether 3-phase power should be installed. Although it’s more expensive to install than single-phase power, it will become more economical for two reasons. Firstly you’ll save on running costs because it uses less conductor material, meaning lower voltages in power transmission. Secondly, in the future, having three-phase will make it easier, and less expensive, for electricians to make any adjustments/additions you may need.

Some items of electrical equipment consume larger amounts of current and so require a three phase supply, these include:

  • Air conditioning
  • Heating
  • Motors and pumps
  • Plant and heavy machinery
  • UPS systems