This standard specifies the product classification and naming, technical requirements, test methods, inspection rules as well as marking, packaging, transport and storage of electrical system for belt conveyer for coal mine.
It is applicable to the electrical system for belt conveyer for coal mine (hereinafter referred to as electrical system).
It is not applicable to the electrical system for cable traction belt conveyer.
2 Normative references
GB 762 Electrical apparatus - Rated current
GB 28829 Sampling procedures and tables for periodic inspection by attributes
GB 3797 Electric-driving controlgear - Part 2: Electric-driving controlgear incorporating electronic devices
GB 3836.1 Electrical apparatus for explosive atmospheres - General requirements
GB 3836.2 Electrical apparatus for explosive atmospheres - Flameproof electrical apparatus "d"
GB 3836.3 Electrical apparatus for explosive atmospheres - Increased safety electrical apparatus "e"
GB 3836.4 Electrical apparatus for explosive atmospheres - Intrinsically safe circuits and electrical apparatus "I"
GB 12173 Mining electrical apparatus for non hazardous area
GB/T 14048.1 Low-voltage switchgear and controlgear - General rules
MT/T 154.2 Electric appliances intended to be used in coal mines - Model designation method and management method
MT 209 General technical requirements of electric and electronic products used for communication, detection and control in coal mine
3 Terms
3.1 electrical system for belt conveyer
complete set of device consisting of belt conveyer control device, protection device, sensing element, signal device and connecting wire
3.2 device
equipment that makes up the electrical system for controlling and protecting signals
3.3 slip
adhesive tape on the driving roller and the contact part of the roller produce relative displacement when the driving roller transmits torque
MT/T 571.1-1996 The following standards are cited：
