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IEC standard suspension insulator are also very popular, for example:
U70BL , U100BL , U120BLP ,U160BLP ,U210B , U300B etc.
Coupling method can be ball & socket or tongue & clevis
HIVOLT product export to many of those countries , and have very good reputation just because we use high quality materials for insulators :
1: the insulator cap use high density ductile iron ,we test each piece of caps with magnetic powder testing method . the insulator pins are made of forged steel .the material can guarantee the inside of pin without any defects such as air , hole , crack etc.
Both cap and pin are hot galvanized , zinc thickness meet ASTM 135 standard .
2: we produce porcelain with high aluminum porcelain C120 . the porcelain surface covered a layer of hard glaze , color can be grey , brown or white or as per customer's specifications.
3: the material of  R type locking pin is stainless steel which guarantee insulator string connection very safety .
4: we use excellent Portland cement to assemble insulation body with related cap and pins .   even after years of servicing , the cement still keep good performance.
Electret Condenser Microphone, is a kind of acoustic power conversion device, which belongs to the capacitor microphone.The electret capacitors in the electret capacitor are used as either the diaphragm or the back pole, which can be used to store charge, so no additional polarization power is required.At the same time, the output sensitivity is greatly improved due to the built-in field effect tube.
Electret Condenser Microphone is Small volume, high temperature resistance, strong stability, low failure rate, to adapt to the environment, high sensitivity, small current, low noise, high quality
Electret Condenser Microphone is be applied to Mobile phone, bluetooth headset, MP3, MP4, PAD, digital camera, voice recorder, wearing headphones, portable megaphone, directional control pickup, community intercom, outdoor interphone, meeting mike
Electret Condenser Microphone
Electret Condenser Microphone,Electret Microphone,Back Electret Microphone,Condenser Microphone
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