BRFLN36 series indoor high-voltage SF6 load break switch, It is widely used in 11~24kV electric power distribution system , adopted with SF6 gas as an arc-extinguishing and insulation medium, including the three contactors for switching-on and switching-off and to-ground, and is characteristic in its small volume, its convenient installation and operation and its the great adaptability with surroundings.

Indoor high-voltage SF6 load break switch and SF6 load break switch plus fuse combination can function to protect and control the electric equipments for power supply and transformer substations especially being suitable for ring net cabinet, cable branch cabinet and distribution switching substation. indoor high-voltage SF6 load switch and SF6 load break switch plus fuse combination are complied with the standards of IEC60265-1-1998, IEC60420 etc.

a)Air temperature
Maximum temperature: +40℃; Minimum temperature:-35℃
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 flammable gas, vapor etc.
e)No frequent violent shake

For BRFLN36 type indoor high voltage SF6 load break switch & its composite apparatus, its operating structure is with K type & A type spring institutions. If equipped with K type spring institution, it is mainly used for incoming unit. If equipped with A spring institution, it is mainly used for outgoing unit and transformer protection.

Attention: Only when this SF6 LBS in off position, its switch-on or grounding work can be operated !

All BRFLN36 type LBS are strictly inspected before off the Boerstn factory, which comply with the standard and technical requirements. Before the installation & testing, must carefully read the installation & usage instructions, and work as following:

1.Check if the appearance is damaged. If so ,should stop the usage
2.Clear and get rid of the dirt on its face because of transport of other reasons
3.After installation well ,must be sure that the load switch in off position. If so, insert the operation handle into the grounding holes on its upper board ,then rotate clockwise 180 to switch on the grounding. Anti-clockwise 180 to off the grounding.
4.When go to do the work of switching –on, firstly let the load switch be off position, then insert the operation handle into the operating hole of the load switch in lower board
5.Operating From switch-on to switch off, For K type spring institution: insert the operation handle into the hole of load switch, anti-clockwise rotate 180 to do the off-switch.
For A type spring institution, push the switch-off button to off the switch. Inspect the switch position through its viewing window, and watch its indication comply with the requirements or not.

Attention: Only when the switch in off position, can go to switch on the grounding or load.

If the product is in accordance with the requirements of the installation instructions & environment ,it can be in 10 years free maintenance and can reliable work for 25 years. But per each year ,must do the necessary inspection and maintenance.

1.Inspect the appearance of its insulation cover, get rid of its dirt on face.
2.Conduct 3-5 lubrication and operation checks on the operating mechanism
3.Check the readings of the pressure gauge on load switch. When readings is lower than 0.01Mpa, it should be filled gas in time. The work of filling gas should be done by professional work or from the factory.
4.When load break switch + fuse composite apparatus is damaged ,one phase fuse blow, then must replace all 3 phase fuses. Before replacement, must switch on the grounding switch

Attention:
Unless the Boerstn's representative is present, otherwise It is strictly forbidden to remove the self-sealing valve (pressure connector)of the switch body
In any time it is forbidden to self-remove the sealing screws of the upper or lower unit of the switch cover.