China Manufacturer OEM outdoor high voltage AC dropout fuse RW12 for Electric Power Department

Short Description:

The (H)RW12-12(F) outdoor high voltage AC drop-out fuse (hereinafter referred to as the “fuse”) is applicable to outdoor
overhead power distribution systems with a rated frequency of 50Hz and a rated voltage of 10kV, serving as a protective
component for electrical equipment when overload or short-circuit faults occur in the power system. The fuse link is connected in
the circuit during normal operation, the fuse wire is in a tensioned state, and the movable switch is locked. When a fault occurs,
the fault current fuses the fuse wire, the movable switch is unlocked and falls off rapidly, breaking the circuit, thus playing a
protective role in the safety of the power system and equipment. The load-type fuse is added with elastic contacts and an arc-
extinguishing cover on the basis of the ordinary type, and is used for making and breaking the load current in the power system.

This product is designed and manufactured in accordance with technical standards such as GB “Alternating Current High
Voltage Fuses” and DL/T “Technical Conditions for Ordering Alternating Current High Voltage Fuses and Their Accessories”.

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Product Detail

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Service Environmental Conditions

Altitude: ≤1000m; if the altitude is higher than 1000m, the rated insulation level shall be corrected accordingly;
Ambient air temperature: Maximum 40°C, minimum -25°C, daily temperature difference 25K;
Humidity: The average value of daily relative humidity is 95%, the average value of monthly relative humidity is 90%;
Solar radiation intensity: 0.1W/cm²;
Pollution class: Not less than Class IV;
Ice thickness: ≤10mm;
Outdoor wind speed (wind pressure): 35m/s (700Pa);
Earthquake resistance capacity (horizontal acceleration): 0.3g.

Technical Data

Item		Unit	Parameter
Rated frequency		Hz	50
Rated voltage		kV	11/12
Rated current of fuse link family series		A	≤100	≤200
Rated breaking current		kA	12.5	16
Rated short-time power frequency withstand voltage	To ground (dry test/wet test)	kV/min	42/1
	Fracture (dry test/wet test)	kV/min	48/1
Lightning impulse withstand voltage	To ground	kV	75
	Fracture	kV	85
Creepage distance		mm	≥372 (Class IV pollution prevention)
Mechanical life		Times	500
Service life		Years	≥20