GB/T 5590-2024 in English
VALIDLow voltage explosion protection electromagnetic starter for mining
- Issued on:2024-08-23
- Implemented on:2025-03-01
- File Format:PDF
- Delivery:Via email within 5 business days
$495.00
| Standard No: | GB/T 5590-2024 |
| Document status: | VALID |
| Title in English: | Low voltage explosion protection electromagnetic starter for mining |
| Title in Chinese: | 矿用防爆低压电磁起动器 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2024-08-23 |
| Implemented on: | 2025-03-01 |
| Superseding: |
GB/T 5590-2008 Low voltage explosion protection electromagnetic starter for mining
|
| ICS Classification: | 29.260.20-Electrical apparatus for explosive atmospheres |
| Chinese Classification: | K35-Explosion-proof electric apparatus |
| Professional Classification: | GB-National Standard |
| Related Keywords: | electromagnetic starter
low voltage explosion protection vacuum starter dual-speed starter triple explosion-proof protection mechanism |
| Related Topics: | GBT5590
GB/T 5590-2008 Explosion-proof air compressor voltage gb5590 gb/t 5590-2008 |
《GB/T 5590-2024矿用防爆低压电磁起动器》由TC9（全国防爆电气设备标准化技术委员会）归口，主管部门为中国电器工业协会。
Introduction
Background of Standard Revision and Technological Evolution
GB/T5590-2024, as an important standard in the field of explosion-proof electrical equipment for mining, replaced the 2008 version and achieved three major technological breakthroughs:
| Technical Dimensions | 2008 Version | 2024 Version | Upgrade Points |
|---|---|---|---|
| Explosion-proof Type | Single Flameproof Type | Newly Added Flameproof and Intrinsically Safe Type | Adapt to Complex Working Conditions Underground |
| Protection Function | Basic Protection | Add Communication Function | Support Intelligent Mine Construction |
| Mechanical life | Unclassified | 10-10 million times classification | Precisely match different application scenarios |
Analysis of core technical requirements
1. Explosion-proof safety system
The standard has established a triple explosion-proof protection mechanism:
- Flameproof enclosure: Static pressure test pressure ≥1.5 times reference pressure
- Intrinsically safe circuit: Spark ignition test must pass GB/T3836.4
- Interlocking device: Mechanical/electrical interlocking gap ≤0.5mm
2. Key performance parameters
Typical case: 1140V vacuum starter must meet the following requirements:
| Switching capacity | 10Ie (COSΦ=0.35) |
| Electrical life | AC-3 category ≥ mechanical life 1/20 |
| Electrical leakage lockout | Action value 40kΩ(+20%) |
Implementation suggestions
Design stage
- Insulating materials with CTI≥600 are preferred
- The switching time of the dual-speed starter must be ≤150ms
- The starter for wind turbines must have an integrated wind power lockout function
Inspection points
| Inspection type | Required inspection items | Sampling plan |
|---|---|---|
| Type inspection | All 24 major items | ≥2 units for each item |
| Factory inspection | Items marked in Table 24 | 100% full inspection |
Standard connection
GB/T3836 series explosion-proof standards must be implemented simultaneously, with special attention to:
- Anti-rust treatment process for explosion-proof surface
- COT temperature range for non-metallic materials
- Calibration of intrinsic safety parameters
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