What types of SPDs are available for three-phase systems?
SPDs for three-phase systems come in various configurations:
- Type 1 SPDs: Provide protection at the main distribution board, suitable for locations with high exposure to direct lightning strikes.
- Type 2 SPDs: Provide protection against switching surges and indirect lightning strikes at the distribution board or equipment level.
- Type 3 SPDs: Provide additional protection at the point of use for sensitive equipment.
