Mining Cable Models and Nomenclature
Mining cable is the abbreviation for flame-retardant cable used in coal mines.
Mining cable product designation: Products are identified by model, specification, and standard number. For example:
1) Coal mining machine shielded rubber-sheathed flexible cable, rated voltage 0.66/1.14 kV, power conductor core 3*50, ground conductor core 1*10, control conductor core 4*4, with semi-conductive shield layer, designated as: MCP-0.66/1.14, 3*50+1*10+4*4 (MT818.2-1992)
Coal mining machine shielded monitoring braided reinforced rubber-sheathed flexible cable, rated voltage 0.66/1.14 kV, power conductor core 3*50, ground conductor core 1*25, control conductor core 2*2.5, with semi-conductive shield layer, monitoring conductor core, and braided reinforcement layer, designated as: MCPJB-0.66/1.14, 3*50+1 *25+2*2.5 (MT818.3-1993)
Metal shielded monitoring rubber-sheathed flexible cable for coal mining machines, rated voltage 0.66/1.14 kV, power conductor 3*70, ground conductor 1*25, monitoring conductor 1*35, with metal shield, designated as MCPTJ-0.66/1.143*70+1*35+1*35 (MT818.4-1994)
Mobile elastomer flexible cable for coal mining, rated voltage 0.38/0.66 kV, power conductor 3*25, ground conductor 1*16, without shield, designated as MYE-0.38/0.663*25+1*16 (MT818.5- (1995)
Mobile metal-shielded monitoring rubber-sheathed flexible cable for coal mines, rated voltage 3.6/6kV, power conductor core 3x35, ground conductor core 3x16/3, monitoring conductor core 3x2.5, with semi-conductive shield layer, designated: MYPTJ-3.6/63x35+3x16/3+3x2.5 (MT818.6-1996)
Mobile shielded rubber-sheathed flexible cable for coal mines, rated voltage 3.6/6kV, power conductor core 3x25, ground conductor core 1x16, for low-temperature environments, with semi-conductive shield layer, designated: MYDP-3.6/63x25+1x16 (MT818.7-1997)
Coal mine electric drill shield Elastomeric cable, rated voltage 0.3/0.5 kV, power conductor 3*4, ground conductor 1*4, designated as: MZPE-0.3/0.53*4+1*4 (MT818.8-1998)
Mobile lightweight rubber-sheathed flexible cable for coal mines, rated voltage 0.3/0.5 kV, insulated conductor 3*2.5, unshielded, designated as: MYQ-0.3/0.53*2.5 (MT818.9-1999)
Coal mine cap lamp cable, insulated conductor 2*0.75, designated as: MM2*0.75 (MT818.10-1999)
The designation of mining cables, i.e., the meaning of their model numbers, is as follows.
1. Cable designations consist of eight parts:
The first part is the series code M, which represents the pinyin initials of the Chinese character for "coal" (煤).
The second part is the application characteristic code, which reflects the intended application of the cable. The letters mean as follows: C, for coal mining machines; D, for low-temperature environments; M, for cap lamps; Y, for coal mining equipment (mobile); Z, for electric drills.
The third section is the structural feature code, which indicates the cable's structural characteristics. The letters mean as follows: B, braided reinforcement; J, with monitoring core; P, non-metallic shield; PT, metallic shield; Q, lightweight; R, reinforced wrap.
The fourth section is the material feature code, with E indicating that the insulation or sheath is made of an elastomer. This section is omitted if both the insulation and sheath are made of rubber. E indicates elastomer material.
The fifth section is the rated voltage U0/U (kV).
The sixth section is the number of power conductor cores * nominal cross-sectional area. The two are connected by a multiplication sign, and the unit is square millimeters.
The seventh section is the number of ground conductor cores * nominal cross-sectional area. The two are connected by a multiplication sign, and the unit is square millimeters.
The eighth section is the number of auxiliary conductor cores * nominal cross-sectional area. The two are connected by a multiplication sign, and the unit is square millimeters. The fourth and fifth parts are connected with a “-”; the sixth, seventh and eighth parts are connected with a “+”.
