General explosion-proof performance test items for explosion-proof electrical equipment
| project |
Basis and requirements |
| Appearance inspection |
Manufacturing drawings and enterprise standards (technical conditions) |
| Dimensions and weight |
Installation and connection dimensions |
| Electrical clearance and creepage distance |
GB3836.3-4.3、 4.4 Phase to phase and shell connection after wiring, Table 4 of GB3836.4 |
| Interlocking devices, warning signs |
GB3836.1-10 Special Tool Interlocking Device |
| a fastening |
GB3836.1-9 Anti loosening, perforation exposure, blind hole retention |
| Coatings and paints |
Corrosion and arc resistance |
| Internal and external grounding |
GB3836.1-15 Symbols, Materials, and Dimensions |
| connection |
Reliable connection, neat arrangement, and distinct colors |
| Mechanical testing |
GB3836.1-23.4.3 Impact and Drop (Some Products and Parts) |
| Shell protection performance test |
GB3836.1-23.4.4 (Explosion proof type not tested) |
| Twist test of connectors |
GB3836.1-23.4.5 (Torque Action) |
| Temperature test |
GB3836.1-23.4.6 Surface Temperature, Thermal Stability of Plastic Shells, Transparent Components of Luminaires |
| Measurement of Insulation Resistance of Plastic Shell |
Thermal upheaval |
| Reference device clamping test |
GB3836.1-7.3.1 |
| Damp heat test |
GB3836.1 Appendix D Clamping Effect and Mechanical Strength |
| Rubber component aging test |
GB3836.1 Appendix C Alternating Damp Heat Test GB3836.1 Appendix D: The change in Shore hardness after aging shall not exceed 20% |
Note: The general test items listed in this table are applicable to explosion-proof, increased safety, intrinsic safety, and general mining electrical equipment. There may be differences according to the actual situation of the product.
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