Description:
Technical Specification of IEC standard U300B porcelain suspension inuslator for 400KV
electrical power lines
| | Technical Specification | Unit | Value |
| 1 | Spacing | mm | 195 |
| 2 | Shed Diameter | mm | 320 |
| 3 | Creepage Distance | mm | 485 |
| 4 | Coupling Size | | 24 |
| 5 | Rated M&E Strength | KN | 300 |
| 6 | Impact Strength | N.m | 10 |
| 7 | Power Frequency Withstand Voltage | | |
| | dry | KV | 80 |
| | wet | KV | 45 |
| 8 | Lightning Impulse Withstand Voltage | | |
| | Positive | KV | 130 |
| | Negative | KV | 130 |
| 9 | Puncture Voltage | KV | 130 |
| 10 | RIV test Voltage to the Ground | KV | 10 |
| | Max RIV at 1 MHz | μV | 50 |
suspension insulators have below advanced charactors :
1 the insulation part use high aluminum porcelain C130 , glaze color
grey , brown or white ,or customer's specification .
2 we produce metal fittings for example metal cap with density
ductile iron ,every pieces of cap are tested qualified with magnetic powder
method . we produce metal pins with material of forged steel .
all the metal fittngs covered a layer of hot-dip zinc coating .
3 we tested each piece of insulators by routine test , test items
shown below :
routine tension load strength test , which will apply 50% of rate
mechanical strength withstand 1 minutes .
routine flashover test , will check each piece of insulators one by
one , to sort defect unit out.
4 we will test each batch of insulators by sample test , the test
items including :
visual and dimensional check , temperature cycle test , M&E
failing load test , puncture test , galvanization thickness test
etc.
Applications:
the U300B product are Suitable for tension string or suspension
string in power lines 330KV, 400KV,500KV,750KV etc.
Competitive Advantage:
the HIVOLT insulator have very good mechanical & electrical
character , we offer 2 years quality guarantee . we believe high
quality deserve your trust !
each pieces of insulators are well tested , to be sure all
insulators are without any defect.
if customer can provide technial data , We will make related
insulators design . we called it a one-stop purchasing .
