MT/T 1200-2023 in English

VALID

Safety technical requirements for explosion-proof lithium-ion battery power supply in the coal mine

Issued on:2023-04-10
Implemented on:2023-07-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $340.00
$330.00

Standard No:	MT/T 1200-2023
Document status:	VALID
Title in English:	Safety technical requirements for explosion-proof lithium-ion battery power supply in the coal mine
Title in Chinese:	矿用防爆锂离子蓄电池电源安全技术要求
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2023-04-10
Implemented on:	2023-07-01
Chinese Classification:	K82-Electrochemical power source
Professional Classification:	MT-Coal
Related Keywords:	explosion-proof lithium-ion battery power supply explosion-proof lithium-ion battery power sources power supply power supply type key test items compliance points industrial battery requirements
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本标准规定了矿用防爆锂离子蓄电池电源的术语和定义、产品分类、型号编制、性能参数、技术要求、现场使用与维护管理、试验方法、检验规则等内容。
本标准适用于在煤矿井下使用的防爆磷酸铁锂蓄电池电源，其中单体电池额定容量大于10A・h。

Introduction

Interpretation of the core content of the standard

MT/T 1200-2023 is my country's first industry standard for explosion-proof lithium-ion battery power sources in coal mines. It focuses on standardizing the safety technical requirements of lithium iron phosphate batteries in explosive environments.

Comparison of key technical indicators

Parameter category	Conventional industrial battery	Requirements of this standard	Safety improvement range
Maximum operating temperature	45℃	60℃	+33%
Overcharge protection voltage	3.65V	3.5V	4.1% protection in advance
Cavity pressure resistance	0.8MPa	1.5MPa	+87.5%

Special requirements for explosion-proof structure

The standard innovatively proposes chamber isolation design:

The battery must be placed independently in the explosion-proof chamber, and the static pressure test ≥1.5MPa
When the capacity is greater than 100Ah, a free space of 7 times the volume of the single cell must be reserved
It is mandatory to configure a manual isolation switch

Typical application case: The power supply of a mining inspection robot is designed with a double-layer pressure relief structure, and the pressure relief response time is <5ms, and it has successfully passed the GB 3836.2-2021 certification.

Key functions of battery management system (BMS)

The standard requires that BMS must have 12 core protection functions:

Voltage monitoring error ≤±0.5%FS
Three-level temperature protection (warning/derating/cutoff)
Dynamic balancing current 50-1000mA
Low-temperature charging lock (charging prohibited at <5℃)

A certain type of mining power supply uses a multi-parameter coupling algorithm to improve the SOC estimation accuracy to ±5%, far exceeding the standard requirements.

Key points of on-site operation and maintenance management

The standard stipulates a strict operation and maintenance cycle:

Weekly Check for data abnormalities
Monthly explosion-proof structure inspection
Complete charge and discharge calibration every six months

Special warning: Battery replacement must maintain the same specifications as the original factory, and maintenance work must be carried out by the manufacturer.

Recommendations for the implementation of the standard

Special considerations for different types of power supplies:

Power supply type Key test items Compliance points

For transport vehicles Simulated collision test Internal resistance change rate ≤5%

Diesel engine starting 450A high current discharge Cut-off voltage ≥15V(24V system)

Monitoring system backup MT/T 1078-2008 compliance Power consumption ≤110% of nominal value

More samples: YD/T 3934-2021 QC/T 942-2021 NB/T 47013.2-2015

Sample only — not a preview of MT/T 1200-2023

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Power supply type	Key test items	Compliance points
For transport vehicles	Simulated collision test	Internal resistance change rate ≤5%
Diesel engine starting	450A high current discharge	Cut-off voltage ≥15V(24V system)
Monitoring system backup	MT/T 1078-2008 compliance	Power consumption ≤110% of nominal value