電工菱格涂膠紙
Diamond pattern adhesive insulating paper
產(chǎn)品簡介：
菱格涂膠絕緣紙是將特種改性環(huán)氧樹脂呈菱格狀涂覆在電工絕緣紙上的絕緣材料。廣泛地應(yīng)用于油浸式電力變壓器的層間絕緣及匝絕緣。使用時涂覆層在線圈干燥過程中在一定溫度時開始熔化，產(chǎn)生粘附作用。隨著溫度的升高又開始固化，使繞組的相鄰各層可靠地粘合成一個固定單元。環(huán)氧樹脂的粘合強度足以防止短路時繞組各層的位移，從而保證了絕緣結(jié)構(gòu)長期的機械電氣性能。
由于菱格涂膠絕緣紙的樹脂涂層呈點狀，保證了油的浸入和絕緣材料中氣體的排出,有效地避免電暈和局放,從而保證了絕緣結(jié)構(gòu)的安全、可靠。
Introduction:
Diamond pattern adhesive insulating paper is a type of insulation material coating special modified epoxy resin on electrical insulating materials. It is widely applied in inter-layer insulation and turn insulation of oil-immersed power transformers. During application, the coated layer starts to melt under certain temperature in the process of coil drying and results in adhesion effect. As temperature rises, it starts to solidify and makes coils’ adjacent layers reliably bond into a fixed unit. The adhesive strength of epoxy resin is strong enough to prevent the displacement of coil layers in case of short-circuit, so as to ensure the long-term mechanical and electrical performance of insulation structure.
As the resin coat of diamond pattern adhesive insulating paper is dot shaped, the paper ensures oil immersion and the discharge of gas from insulation materials, effectively prevents electric corona and partial discharge, thus ensuring the safety and reliability of insulation structure.
性能要求：
Performance Requirements：
序號 No. | 性 能 Performance | 單位 Unit | 要 求 Requirement | ||||
|---|---|---|---|---|---|---|---|
1 | 基材厚度及公差 Base material thickness and tolerance | mm | 0.08±0.005 | 0.13±0.007 0.18±0.010 | 0.20±0.010 | 0.25±0.010 | |
2 | 基材緊度 Base material tightness | g/cm³ | 0.85-1.10 | ||||
3 | 單面膠粘劑厚度 Single-sided adhesive thickness | um | 6-12 | ||||
4 | 水分 Moisture | % | 4.0-8.0 | ||||
5 | 灰分 Ash | % | ≤1.0 | ||||
6 | 水抽出物電導(dǎo)率 Conductivity of water extract | ms/m | ≤10 | ||||
7 | 水抽出物PH值 PH value of water extract | - | 6.5-8.5 | ||||
8 | 吸油性 Oil absorption | % | ≥20 | ||||
9 | 粘結(jié)強度 Adhesive strength | 常態(tài) Normal state | kpa | ≥650 | |||
100℃±2℃ | |||||||
10 | 對變壓器油的污染 Contamination of transformer oil | - | 無污染No pollution（tanδ<0.001） | ||||
11 | 拉伸強度 Tensile strength | 縱向 Vertical | N/10mm寬 | ≥60 | ≥110 ≥160 | ≥180 | ≥230 |
橫向 Horizontal | |||||||
12 | 撕裂強度 Tear strength | 縱向 Vertical | mN | ≥450 | ≥900 ≥1350 | ≥1500 | ≥2000 |
橫向 Horizontal | ≥500 | ≥1000 ≥1500 | ≥1700 | ≥2300 | |||
13 | 擊穿電壓 Breakdown Voltage | 空氣中 In air | kv | ≥0.88 | ≥1.37 ≥2.00 | ≥2.10 | ≥225 |
油中 In oil | ≥4.40 | ≥7.00 ≥9.00 | ≥9.80 | ≥11.50 | |||
產(chǎn)品固化條件：
首先在90℃±5℃環(huán)境下，保持3小時后升溫至125±5℃，再保持6小時的條件下*固化。
Product Solidification Conditions:
Firstly, temperature rises to 125±5℃ after maintaining 90℃±5℃ for three hours, and then the product compley solidifies after maintaining for six hours.
貯存：
應(yīng)貯存于干燥而潔凈的室內(nèi)，不得靠近火源、暖氣或日光照射。貯存期為壹年；超過貯存期經(jīng)檢驗，合格者仍可使用。
Storage:
Store in a dry and clean room, and keep away from fire or heat, or in the sun. The storage period is one year; qualified products exceeding the storage period can still be used.
