This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transport and storage of communication and control equipment for underground mechanized mining face of coal mine (hereinafter referred to as communication and control equipment).
It is applicable to communication and control equipment used in mechanized mining face and chute with explosive mixture.
2 Normative references
GB 191 Packaging - Pictorial marking for handling of goods
GB 3836 Electrical apparatus for explosive atmospheres
GB 3836.1 Electrical apparatus for explosive atmospheres - General requirements
GB 3836.2 Electrical apparatus for explosive atmospheres - Flameproof electrical apparatus “d”
GB 3836.4 Electrical apparatus for explosive atmospheres - Intrinsically safe circuits and electrical apparatus i
GB 3873 General specifications for products packaging of communication equipment
GB 4942.2 Degrees of protection provided by enclosures for low-voltage apparatus
GB 6388 Transport package shipping mark
MT 209 General technical requirements of electric and electronic products used for communication, detection and control in coal mine
MT 210 Basic testing methods for electric and electronic products used for communication, inspection and control of coal mine
3 Product classification
3.1 Classification
3.1.1 Classification by the use occasion
a. communication and control equipment for thin coal seam face and chute conveyor lane;
b. communication and control equipment for medium-thick coal seam face and chute conveyor lane;
c. communication and control equipment for chute conveyor lane.
