防爆中间接线盒是按照 GB3836.1-2000；GB3836.3-2000《爆炸性环境用防爆电气设备  第1部分：通用要求、第3部分：增安型“e” 》的有关规定设计制造的。防爆等ExeⅡBT4，适用于工厂一区、二区爆炸性气体混合物T1～T4的温度组别场所。电伴热带与电伴热带的连接，采用我厂生产的防爆中间接线盒，有直型接线盒（俗称“二通” ）和T型接线盒（俗称“三通” ）。 Explosion-proof intermediate connection kit is manufactured as the requirement of the GB3836.1-2000 and GB3836.3-2000. ExeⅡBT4 is suitable for hazardous area(Division 1&2), T1-T4. Intermediate connection kit is used for connection between heating cables. T type and linear type are available.
 
1结构原理 Structure Principle
直型、T型接线盒由接线盒体、盒盖、端盖、接线块等组成。供220V，380V电源通用，当电源为220V时，只需使用其中的两个端子。Connection kit is composed of kit body, cover, and end cap, etc. Applicated with 220V or 380V. 220V adopts any two terminals.
 
2中间接线盒结构 Structure
        
               中间直型接线盒Splice kit     图29
     
         
         中间T型接线盒Tee kit     图30
 

3产品型号 Catalog Number

      
                                  图31
4技术性能与指标 Technical Characteristics and Parameters
4.1正常工作条件Normal Working Conditions
a：环境温度ambient temperature：－40℃～+65℃
b：相对湿度relative humidity：≤95%
 
 
4.2主要技术指标Technical Parameters（表12）

型号 Catalog number	防爆等级 Explosion-proof level	工作电压 Working voltage	工作电流 Working current	绝缘电阻 Insulation resistance	电气强度 Dielectric strength	防护等级 Protection level
ZH	ExeⅡT4	380V/220V	≤15A	≥60MΩ	2000V/min	IP54
TH	ExeⅡT4	380V/220V	≤15A	≥60MΩ	2000V/min	IP54