Main Plastic Materials of Connector
Nylon （ PA6.6 ）
It is non-corrosive,
flame and strong, self-extinguishing (according to UL94, V0
standard), and has a temperature stability to the conditions
at 105 ℃ under continuous operation.
Continued stability and
mechanical conditions related to temperature, in line with
UL-Index RTI-Mechanical STR standards, on all electrical and
mechanical insulation to provide sufficient security
guarantees.
Instantaneous peak
temperature of 200 ℃. The corresponding low-temperature
limit is also based on security principles. Minimum of
insulation material can be carried out under the conditions
of -35 ℃ without damage to the operator. Or the wiring has
been installed, all WAGO products can be the temperature at
-60 ℃ applied.
Absorbed moisture from
the air to make it up to 2.5% of the average humidity level
and then change in the chemical structure of nylon, so it
has good flexibility and resistance to fracture resistance.
In practice, the basic
stability of nylon can withstand many years of ozone and
ultraviolet damage. Also has good resistance to adverse
weather capability, even in tropical regions, can also be
used normally.
Parts made from nylon can
withstand termites biting. It does not provide any oxygen to
the microorganisms and other biological elements. Anaerobic
bacteria, fungi, and the existence of enzymes will not have
any negative effect. It fuels, oils and lipids and most
commonly used detergents such as alcohol, Freon, F Ligon,
carbon tetrachloride, and so has excellent resistance. On
the acid resistance of nylon by the acid type and
concentration of decision.
Nylon （ PA4.6 ）
Compared with nylon 6.6
under the conditions he has a higher temperature stability.
In the mechanical stress conditions, the temperature of its
sustainable work 115 ° C. 10,000 hours of experiments, the
temperature of its sustainable work 140 ° C. WAGO use of PA
4.6 in the short-term temperature is 280 ° C.
Polycarbonate ( PC )
Several notable features
are:
has a high thermal
stability, even in the 135 ° C when they have a higher
consistency, hardness, toughness
good electrical
properties, even if the humidity is not affected much. Its
insulation properties also will not be affected by
temperature and humidity.
Low water absorption
(0.2% relative humidity), does not cause significant
contraction, which have a high dimension stability.
Against weathering
Anti-high-energy
radiation
self-extinguishing
With good
Transparency and gloss
The
comparation of these 3 materials
|
Material
Description |
PA 6.6 |
PA 4.6 |
PC |
|
Flame retardant
flame test, according to UL 94 |
V0 |
V2 |
V2 |
|
Glow-wire test in
accordance with IEC 60695-2-10/11 +12 |
960 °C |
850 °C |
850 °C |
|
Oxygen Index |
37 |
27 |
26 |
|
Comparative
tracking index, according to IEC 60112 CTI |
600 |
375 |
275 |
|
Thermal stability
of the HDT / B (0.45 Mpa) |
Instantaneous 200 °C |
Instantaneous 280 °C |
140 °C |
|
Mechanical stress
conditions in the thermal stability |
Continued 105 °C |
Continued 115 °C |
125 °C |
|
Heat-resistant
ball pressure test, in accordance with EN ISO 2039-1
test equipment B |
通过
125 °C |
通过
125 °C |
通过
125 °C |
|
Surface
resistance |
1010
-1013 Ω |
1013
-1016 Ω |
1015
Ω |
|
Resistivity |
1015 Ω
/ cm |
109
-1015 Ω / cm |
1013
Ω / cm |
|
Dielectric
strength |
30 kV
/ mm |
25 kV
/ mm |
29 kV
/ mm |
