Elements and Performance Criteria
- Prepare to select equipment.
- Arrange installation into circuits.
- Select cables, protection and switchgear.
- Wiring is selected for suitability for the environments in which they are installed.
- Cable conductor sizes are selected to meet current-carrying capacity requirements and voltage-drop and fault-loop impedance limitations.
- Protection methods and devices are selected to meet co-ordination requirements for overload and short-circuit protection.
- Switchgear and control gear is selected to meet current, voltage and IP ratings and functional requirements.
- Earthing system components are selected to meet requirements of the MEN system.
- Evidence is obtained that electrical equipment selected complies with safety requirements.
- Document electrical installation.