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    3M 
    Filament-Reinforced Electrical Tape 1076 with Oil-Compatible Acrylic 
    Adhesive  
    
    3M Filament-Reinforced Electrical Tape 1076 is a white, 9.5-mil (0.241 mm) 
    thick tape composed of a paper backed glass filament reinforced scrim 
    backing coated on one side with a non-corrosive, oil-compatible acrylic 
    pressure-sensitive adhesive.   
    
    *Commonly used for holding down magnet wire, copper strips (sheets) and 
    insulating materials used in oil filled transformer coil winding 
    applications  *Adhesive requires no heat, moisture or other manner of 
    preparation to affect application   
    
    *Designed for continuous operation not exceeding 105°C (221°F) 
    
    3M Electrical Filament Tape 1076 is made of an 
    electrical-grade paper backing, reinforced with scrim glass filaments and an 
    oil-compatible acrylic pressure-sensitive adhesive. Unlike conventional 
    film-backed tapes, this products’ paper backing construction provides for 
    complete impregnation and saturation of the tape in adjacent layers of 
    insulation. This key feature minimizes the possibility of 
    impregnation voids leading to corona discharges, with subsequent 
    deterioration of insulating materials. 
    Polyester film used in making traditional designed filament tapes does not 
    absorb transformer oil. The unique coating on the back side of the 1076 tape 
    promotes exceptional bonding of the diamond paper 
    insulation epoxy during the transformer baking process. 
    
    Applications 
    The primary application for 1076 filament tape is holding down magnet wire, 
    copper strips (sheets) and insulation materials during the demanding coil 
    winding process. Once in place in the transformer coil, the 
    tape provides a second key performance attribute by saturating in the 
    transformer oil. These attributes together make 1076 filament tape the right 
    choice for oil-filled transformers. A transformer coil is manufactured one 
    of two ways, first by winding magnet wire on a core with layers of secondary 
    insulation 
    between the layers of magnet wire and secondly by using copper sheets on a 
    core with layers of primary insulation between the layers of copper sheets. 
    A core application for 1076 filament tape is holding down the magnet wire at 
    the beginning and end of each layer. This is also referred to as the start 
    and finish  
    between magnet wire turns. In addition, 1076 filament tape is used to hold 
    down the insulation sheet layers between magnet wire layers. 
    
    Filament tape 1076 is particularly well suited 
    for these applications because of the product’s high tensile strength. This 
    allows the tape to withstand the stress applied to the tape when the 
    windings are being applied at high winding machine speeds. 
    
    Filament tape 1076 provides five core 
    performance benefits for critical oil-filled transformer applications. 
    1. Good initial adhesion of the tape to magnet wire, strip copper and 
    insulation materials 
    2. Stable adhesion even after long exposure to transformer fluids 
    3. Stiffness for excellent handling, which promotes operator efficiency 
    during application of the tape during coil winding operations 
    4. Saturable backing for air entrapment resistance which minimizes the 
    trapped air between adhesive layers in the applied tape 
    
    5. Compatibility with diamond paper insulation 
    thermal bonding with back side of tape 
    6. Easy consistent unwind to promote operator efficiency 
    
      
        | 1276 | 
        1076 | 
       
      
        
    Thickness: 9.0 mils (.228 mm) 
    Breaking strength at break: 275 lbs./in (481 N/10mm) 
    Elongation at break: 5% 
    Adhesion to steel: 40 oz/in (4.4 N/10,,) 
    Dielectric breakdown: 3500V 
    Electrolytic corrosion factor: 1.0
        Temperature Class: 105 degree C 
        1276 加強纖維為單一方向平行狀  | 
        
    Color - Visual White 
    Adhesive Oil-Compatible Acrylic 
    Backing Paper backed / Glass Filament  
    Total Thickness1 9.5 +/- 1.0 mils (0.241 +/- 0.025 mm)  
    Adhesion to Steel1 - Minimum 35 oz/in (3.8 N/cm)  
    Breaking Strength1 - Minimum 150 lb/in (263 N/cm)  
    Elongation1 - Minimum 2% 
    Insulation Resistance1 - Minimum 1x105 Ω 
    Dielectric Breakdown1 - Minimum 1500 V 
    Electrolytic corrosion factor: 1.0
    Temperature Class: 105 degree C 
        1076 加強纖維為交錯網狀      
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    抗溶劑、抗剪切能力極佳的膠黏劑 ﹔抗張強度大,使其可以在有絕緣油變壓器中作固定使用 
    
    膠帶 1076 主要與其他膠帶不同是 
     
    1. 網狀編織纖維補強 較一般直線纖維堅固 
    2. 特殊設計 減少膠帶包含住的空氣 避免 corona discharge 
    3. 特殊膠系適用於絕緣油中 
    4. 從型性好 可貼於不平的表面 
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