Clearance Creepage: reinforced
reinf pd2 ovc3 600 to reinf pd3 ovc2 600
Minimum electrical clearance and creepage distances per IEC 60664-1:2020 (insulation coordination for low-voltage equipment up to 1000V AC / 1500V DC) and IPC-2221B (PCB conductor spacing). Indexed by insulation type (functional, basic, supplementary, reinforced, double, ipc_pcb), pollution degree (1–3), overvoltage category (I–IV), and working voltage (V). Clearance is shortest air-path distance; creepage is shortest surface-path distance. Critical for PCB layout, enclosure design, and product safety compliance (CE, UL, CSA).
| insulation type | record id | altitude correction factor | application note | clearance mm (mm) | creepage mm (mm) | material group | overvoltage category | pollution degree | standard | working voltage V (V) |
|---|---|---|---|---|---|---|---|---|---|---|
| reinforced | reinf pd2 ovc3 600 | 1 | Reinforced insulation; PD2; OVC III; 600V; 5.5mm clearance | 5.5 | 6.4 | I | III | 2 | IEC60664-1 | 600 |
| reinforced | reinf pd3 ovc2 250 | 1 | Reinforced insulation; PD3; OVC II; 250V; creepage more than doubled vs basic due to pollution | 2 | 6.4 | I | II | 3 | IEC60664-1 | 250 |
| reinforced | reinf pd3 ovc2 600 | 1 | Reinforced insulation; PD3; OVC II; 600V; high creepage for industrial isolation | 4 | 12.5 | I | II | 3 | IEC60664-1 | 600 |
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