PHASE | EARTHING SYSTEM | POLES | PART NO. |
---|---|---|---|
Three | TN-S / TN-C-S | 4 | KM2-20-4+0 SC |
DESCRIPTION | ORDER NUMBER |
---|---|
Spare Module L-N (L-PE) | KM2-20 |
Varistor based four-pole Type 2 Surge Arrester. Use in TN-S and TN-C-S system sub-distribution boards on the boundary of LPZ1 and LPZ2 (if >10m away from the MDB).Suitable for houses, commercial, and industrial buildings.Kingsmill fully coordinated mains devices to provide complete protection from 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: Three Phase TN-S & TN-C-SSDB: Boundary of LPZ1 and LPZ2 if >10m away from MDB.
LPL III + IVSystem: Three Phase TN-S & TN-C-SSDB: Boundary of LPZ1 & LPZ2 if >10m 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.