Cable brackets

SMC compound cable bracket has the following characteristics:
1) high strength, light weight, the weight of steel is only 1 / 4, concrete pipe 1 / 10 or so, transportation convenient, simple construction.
2) product surface is smooth ,coefficient of friction is small, do not damage the cable.
3) the overall insulation products, non-electric erosion, to prevent eddy current generated.
4) water resistance, and long-term use in damp or water,
5) heat and cold resistant. Excellent fire resistant performance, can be used in -50 •C --- 130 •C
6) Anti-corrosion, non-rust, long service life, maintenance-free advantages.
7) This material does not support the value of recycling, it can put an end to the phenomenon of theft occurrence.
8) Support a good insulation performance, their need for grounding, can reduce the workload of the installation of labor, steel stent to be fully grounded, the installation of labor workload.
 
Three type cable bracket:
Item
Metal bracket
Plastic bracket
SMC/BMC bracket
Strength
Good
Poor
Good
Carrying capacity
Strong
So so
Strong
Corrosion resistance
No
Yes
Yes
Aging resistance
Yes
No
Yes
Creep deformation resistance 
Yes
Not good
Yes
High temp. resistance
Yes
No
Yes
Maintenance
Costly & Inconvenient
Costly  & Inconvenient
Maintenance Free
Installation
Inconvenient
Easy
Easy
Guard against theft
No
No
Yes
 
 
SMC compound characteristics
item
Unit
in tunnel index
out tunnel index
lasting quality
service life
year
30
25
 
 
mechanical property
 
Flexural strength
MPa
>=150
>=160
Flexuous modulus of elasticity
MPa
>=0.7¡Á104
>=0.7¡Á104
compressive strength
MPa
>=80
>=80
impact strength
kJ/©O
>=60
>=60
water absorption
%
£¼0.2
£¼0.2
retention rate of Flexural strength after water proof test
%
£¾90
£¾90
hot property
retention rate of Flexural strength after 280•C0.5h
%
>=90
 
hot distortion temperature
•C
>=200
>=200
insulating property
insulation resistance
¦¸
>=1.0¡Á1012
>=1.0¡Á1012
 
 
 
fire resistance
fire resistance level
 
GB8624B1£¨Does not allow burning drip filter paper ignited a phenomenon£©
100cmThe average residual strength combustion
cm
>=35
>=15
The average flue gas temperature peak
•C
<=125
<=200
SDR
SDR
<=35
<=75
oxygen index
%
>=32
>=32
fire resistance
¼¶
FV-0
FV-0
Burning smoke toxicity is not lethal concentration of the whole
mg/L
>=25
 
heat value
mJ/kg
<=6
 
rate of heat release
mJ/m2
<=30
 
other
density
g/cm3
<=2
<=2
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