Audited Supplier
FW1-12/24/36
Service environment
a)Air temperature: Maximum temperature: +75ºC ; Minimum temperature:-45ºC
b)Humidity: Monthly average humidity 95%; Daily average humidity 90% .
c)Altitude above sea level: Maximum installation altitude: 2500m
d)Ambient air not apparently polluted by corrosive and flflammable gas, vapor etc.
e)No frequent violent shake
Features and benefifits
•Compact design
•All steel parts either in stainless steel or hot-dip galvanized
•Solid and stable base frame
•Main contact with icing protection
•Insulators available in porcelain or alternatively in silicone
•Minimal sag for the line-connection thanks to the two fifixed terminals
•Completely maintenance antirust AL alloy -Arc chamber
•Switching-off procedure without external arc
•Short circuit making capacity under specifific conditions possible
•Fixing on the supporting structure either by clamping (free setting) or screwing (holes in the base frame)
•Easy on-site installation and setting
•High reliability: up to 1'000 cycles (depending on the making current)
•All conducting parts either silver, nickel or tin-plated
•Practically maintenance-free
| No | Item | Unit | Date | |||
| 1 | Rated voltage | Kv | 12 | 24 | 36 | |
| 2 | Rated frequency | Hz | 50/60 | |||
| 3 | Rated current | A | 200/400/630 | |||
| 4 | Rated short circuit withstand current | KA | 20 | |||
| 5 | Rated peak withstand current | KA | 50 | |||
| 6 | Rated making current | KA | 31.5-50 | |||
| 7 | Rated insulation level(HV) | lighting impulse | KV | 75/85 | 125/145 | 170/195 |
| Power frequency withstand | 45 | 55/75 | 75/100 | |||
| 8 | for active circuits | 20 breakings | A | 630 | 630 | 400 |
| 30 breakings | 400 | 400 | 300 | |||
| 40 breakings | 300 | 300 | 250 | |||
| 50 breakings | 250 | 250 | 170 | |||
| 75 breakings | 170 | 170 | 160 | |||
| 120 breakings | 110 | 110 | 110 | |||
| 200 breakings | 65 | 65 | 65 | |||
| 280 breakings | 50 | 50 | 50 | |||
| 9 | For ring circuits breaking capacity | 630 | 400 | 250 | ||
| 10 | Rated breaking capacity of transformer | 50 | 50 | 50 | ||
| 11 | Rated breaking capacity of cable charging | 11 | 11 | 11 | ||
| 12 | Rated breaking capacity of earthing fault | 56 | 56 | 56 | ||
