PHASE | EARTHING SYSTEM | POLES | LPL | MAX DISCHARGE CURRENT (10/350µs) | PART NO. |
---|---|---|---|---|---|
One | TT | 2 | I & II , III & IV | 12.5kA | KM1+2-12.5-1+1 SC |
DESCRIPTION | ORDER NUMBER |
---|---|
Spare Module L-N (L-PE) | KM1+2-12.5 |
Spare Module N-PE | KM1+2-12.5-NPE |
Combined Type 1 & 2 Lightning Current and Surge Arrester, using a combination of varistor SPD and encapsulated spark gap connected in the 1 + 1 mode. Use in TT system main distribution boards on the boundary of LPZ0 and LPZ1 and sub-distribution boards on the boundary of LPZ1 and LPZ2 (if >100m away from the MDB).Suitable for houses, commercial and industrial buildings.Kingsmill’s coordinated mains devices provide complete protection from the entry point to equipment.
Benefits: No follow-through current. No leakage current. Coordinated range (install in close proximity to each other)
Standards: BS:EN 62305 (Lightning Protection) and EN 61643-11 (Surge Protection Devices).
LPL I + IISystem: Single Phase TTMDB: –SDB: Boundary of LPZ1 and LPZ2 if >50m away from MDB.LPL III + IVSystem: Single Phase TTMDB: Boundary of LPZ0 & LPZ1SDB: Boundary of LPZ1 & LPZ2 if >50m away from MDB.
A lightning surge protection device prevents damage to electrical and electronic equipment from transient over-voltage events by blocking or redirecting surge current to the ground instead of passing through the equipment. In a well -designed system, it is important that for each building, both the incoming and outgoing circuits are protected by surge protection devices (where the cables enter and exit the building).This includes:
Field based electronic equipment also need to be protected.