固體絕緣材料測(cè)試電極
Test Electrode for Solid Insulation Material
一·用途Usage
本電極適用于固體電工絕緣材料如絕緣漆、樹(shù)脂和
膠、浸漬纖制品、層壓制品、云母及其制品、塑料、電纜
料、薄膜復(fù)合制品、陶瓷和玻璃等的相對(duì)介電系數(shù)(ε)與介
質(zhì)損耗角正切(tgδ)的測(cè)試。本電極主要用于頻率在工頻50
赫茲下測(cè)量試品的相對(duì)介電系數(shù)(ε)和介質(zhì)損耗角正切值
(tgδ)。本電極的設(shè)計(jì)主要是參照國(guó)標(biāo)GB1409—78。
The electrode is applied for dielectric strength (ε) and
dielectric dissipation (tgδ) test of soild electric insulation materia l. The materia ls are
insulation paint, resin, glue, dipped fiber product, la yer pressed product, mica, mica
product, plastic, filming composite product, porcela in and glass, ect. The electrode is
ma inly used for dielectric strength (ε) and dielectric dissipation (tgδ) test under 50Hz.
The ma in design of the electrode is according to GB1409-78.
本電極采用的是三電極式結(jié)構(gòu)，能有效地消除表面漏電流的響，使測(cè)量電
極下的電場(chǎng)趨于均勻電場(chǎng)。
The electrode adopts three-electrode structure. It removes the leakage current
influence, so that the electric field under the measure electrode is avera ge.
二·主要技術(shù)指標(biāo)：Main technical standards
環(huán)境溫度temperature ：20±5OC
相對(duì)濕度relative humid ity ：65±5％
高底壓極之間距離：0～3.5mm 可調(diào)
dista nce between low and high electrode 0～3.5mm regulatable
百分表示值誤差error of percentage meter : 0.02mm
百分表電源: 一粒1.5V 氧化銀扣式電池（SR44，1.5v）
Power supply of percentage meter: one 1.5 v silver oxide button cell
battery（SR44，1.5v）
測(cè)量極直徑：φ70±0.1mm
Measure polarity dia meter：φ70±0.1mm
空極tgδ：[5 X10-5
Empty polarity tgδ：[5 X10-5
空極電容量；40 士1 pF
Empty capacitance: 40 士1 pF
最高測(cè)試電壓；2500V
Maximum test voltage: 2500v
實(shí)驗(yàn)頻率：50／60Hz
Test frequency: 50/60Hz
體積：Φ210mm H180mm
Volume : Φ210mm H180mm
重量：6kg
Weight: 6kg