T/CPARK 40-2023 Active

Scope: This document specifies the product types and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of explosion-proof electric control equipment for mining cranes. This document applies to explosion-proof electric control equipment for mining cranes used in underground coal mine environments (hereinafter referred to as electric control equipment), with a rated voltage of 1140 V, 660 V, or 380 V, and a rated power of 50 Hz. Main technical content: 3 Terms and Definitions 4 Product Types 4.1 Type 4.2 Rated Working Cycle 5 Technical Requirements 5.1 General Requirements 5.2 Structure Parameters of Explosion-Proof Surfaces 5.3 Cable Introduction Devices 5.4 Impact Resistance of Enclosures 5.5 Torsion 5.6 Pressure Resistance Performance 5.7 Heat and Cold Resistance Performance 5.8 Chemical Resistance Performance 5.9 Pressure Resistance Performance of Enclosures 5.10 Protection Performance of Enclosures 5.11 Operating Performance 5.12 Temperature Rise of Electric Control Equipment 5.13 Maximum Surface Temperature of Enclosures 5.14 AC Voltage Withstand Test 5.15 Insulation Resistance 5.16 Alternating Wet-Heat Test Performance 5.17 Connection and Disconnection Capacity 5.18 Reversible Connection and Disconnection Capacity 5.19 Mechanical Lifespan 5.20 Electrical Lifespan 5.21 Overload Protection 5.22 Leakage Lockout Protection 5.23 Short-Circuit Protection 5.24 Phase Loss Protection 5.25 Undervoltage Protection 5.26 Overvoltage Protection 6 Test Methods 7 Inspection Rules 7.1 Factory Inspection 7.2 Type Test