BHD2 series mine flameproof junction box (hereinafter referred to as the junction box) is suitable for underground coal mine with explosive gas (methane) environment. It is used as the branch of lighting, signal and power cable connection in the power supply network with AC frequency of 50 Hz and voltage of 1140 V.
The junction box is designed and manufactured according to gb3836.1-2000 electrical equipment for explosive gas environment Part 1: General requirements, gb3836.2-2000 electrical equipment for explosive gas environment Part 2: flameproof type "d" and mt429-2008 flameproof low voltage cable junction box for coal mine.
Model | Rated voltage (V) | Rated current (A) | Maximum outer diameter of cable (mm) |
BHD2-20/127-6T | 127 | 20 | Φ20 ,Φ10 |
BHD2-25/380-(2~4)T | 380 | 25 | Φ22 |
BHD2-40/660(380)-(2~4)T | 660 | 40 | Φ26 |
BHD2-100/660-(2~4)T | 660 | 100 | Φ37 |
BHD2-200/660-(2~4)T | 660 | 200 | Φ51,Φ37 |
BHD2-400/1140-(2~4)T | 1140 | 400 | Φ78 |