40 * 6 flexible graphite based down lead 100 * 1000 absorption grounding device 20mm graphite cable grounding rope
Category:
Security/Lightning protection equipment/Other lightning protection equipment
Model:
HM-JD-L28
Brand:
other
model:
HM-JD-L28
type:
Lightning protection grounding material
lifespan:
30 years
Processing & Customization:
yes
Is it imported:
No
Item Number:
HM-JD-L28
Specifications:
40*5mm φ20mm φ24mm φ28mm
series:
Lightning protection grounding material
manufacturer:
Qingdao Zhongdian
Retail Price
15.00USD
重量
kg
- Product Description
-
model HM-JD-L28
type Lightning protection grounding material
lifespan 30 years
Processing & Customization yes
Is it imported No
Item Number HM-JD-L28
Specifications 40*5mm φ20mm φ24mm φ28mm
series Lightning protection grounding material
manufacturer Qingdao Zhongdian
Description :
Appearance and surface quality
The flexible grounding body of graphite base should have a compact appearance, uniform thickness, smooth surface, and no broken or continuous joints.
Grounding body diameter
mm
20mm
Grounding body impulse current withstand test
%
The resistivity change after 8/20 μ s, 50kA standard lightning current impulse withstand test shall not exceed 10%
Bending resistance of grounding body
%
After bending 90 degrees in both directions with a curvature radius of not less than 0.3m, the resistivity change shall not exceed 10%
Anti torsion performance of grounding body
%
After 5 twists/m of twisting, the change in electrical resistivity is not more than 10%
Tensile performance of grounding body
%
After applying a tensile force of 1kN and maintaining it for 10 seconds, the change in electrical resistivity should not exceed 10%
High and low temperature resistance performance of grounding body
%
After baking at a constant temperature of 100 ℃ for 0.5 hours and returning to room temperature, the change in electrical resistivity should not exceed 10%, and the continuity resistance should not exceed 4m Ω.
After being frozen at a constant temperature of -55 ℃ for 0.5 hours and restored to room temperature, the change in electrical resistivity should not exceed 10%, and the continuity resistance should not exceed 4m Ω
Length of each coil of wire
m
≤200
Annual average acid and alkali corrosion rate (weight percentage)
%
＜0.1%
resistivity
W·m
＜5*10-5
Grounding allowable working temperature
℃
≥70
AfterSalesService :
Key words:- Flexible graphite based down conductor
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