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Current shunt

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江苏德大石化科技有限公司

High and moderate frequency divider as lightning current external floating roof oil tank floating plate at high and moderate frequency lightning current discharge device, through the adjustable tension device to solve the deformation and displacement of floating plate of tank caused by the clearance between the tank wall and branching device, ensure the float plate on the high and moderate frequency get timely release of lightning current, avoids the release process of lightning current.

 

Performance characteristics of the shunt:

1) the shunt plate is beryllium-bronze plated with chrome, and the fixed part is made of 316 stainless steel.
 
2) adjust the tension through adjustable knob to ensure close contact between the diverter plate and the tank wall;
 
3) the contact pressure between the shunt plate and the tank wall can be measured by a tension meter through the tension measuring hole;
 
4) the lightning current of the shunt is greater than 25KA without fire;
 
5) the starting ignition current of the shunt is greater than 5KA;
 
6) special heat treatment of shunt plate with standard elasticity up to 10 years;
 
7) the shunt plate has strong abrasion resistance and wear degree <0.69um/m;
 
8) no fire installation is required. The installation process does not affect production and no cable laying is required;
Technical Parameters
Explosion-proof certificate

Mechanical parameters of high and medium frequency lightning current shunt:

 

The name says

Gauge(mm)

Material is qualitative

Flow distributing plate

200×70×1

Beryllium bronze chrome plating

regulator

M10×30

Stainless steel316

l-plate

150×70×4

Stainless steel316

Tension gauge hole

20×10

- -

 

 

 

Performance parameters of high and medium frequency lightning current shunt:

 

specifications

parameter

 

Pour inclined Angle

3 to 15 degrees

 

Shunt tension

10N

 

wear

<0.69um/m

 

Maximum flow(8/20μs)

>25kA

 

Starting ignition current(8/20μs)

>5kA

 

And the floating plate's indirect resistance

≤ 0.03Ω

 

Tank oil thickness requirements

There is oil deposit, antistatic coating and corrosion between the distributor and the tank wall, its thickness ≤ At 2mm, the lightning current can break through the media layer, without bypass fire jumping.

 

The material

Fixed board:316   Split plate: beryllium bronze chrome plating

 

Storage environment

Temperature:-60~60℃,Temperature: no greater than90%RH