Electrical Design Calculations

Electrical Design Calculations: BS 7671: 2018

Our electric design calculations are generated in proprietary software Amtech, part of the Trimble design software group. These calculations will confirm compliance with the latest industry standards – BS7671:2018.

Amtech will generate several useful outputs for the installer to use to validate their installation and materials used. These are:

  • Single line diagrams of the distribution network can be used in their native data file format or imported into AutoCAD and presented as an issuable drawing.

  • Cable schedules, identifying cable type, length and size, protective device, volt drop etc.

  • Coordination survey ensuring all characteristic of the protective devices in the distribution network has been assessed and, if needed, set up to provide time/trip curves are configured to minimise nuisance tripping and energy let through, ensuring the integrity of all device up and downstream.

  • Initial verification, periodic inspection and minor works certification.

  • Other certificates also generated include BS5266 emergency lighting design installation and commissioning certificates and BS5839 fire alarm system design, installation, and commissioning certificates.

  • A Bill of Materials (BOM) itemising materials needed for the installation as specified in the design mentioned above.