NB/T 10721-2021Camera holder for the coal mine (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted.

1 Scope

This document specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of pan-tilts for coal mines.

This document applies to the camera pan/tilt used in coal mines (hereinafter referred to as the pan/tilt).

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 191 Graphical signs of packaging, storage and transportation

GB/T 2423.1 Environmental Testing of Electrical and Electronic Products Part 2: Test Methods Test A. Low Temperature

GB/T 2423.2 Environmental Testing of Electrical and Electronic Products Part 2: Test Methods Test B. High Temperature

GB/T 2423.3 Environmental Test Part 2: Test Method Test Cab. Constant Damp Heat Test

GB/T 2423.4 Environmental testing of electrical and electronic products Part 2: Test method Test Db Alternating damp heat (12h 12h cycle ring)

GB/T 2423.5 Environmental Testing Part 2: Test Methods Test Ea and Guidelines. Shock

GB/T 2423.10 Environmental Testing Part 2: Test Methods Test Fc. Vibration (Sinusoidal)

GB/T 2829-2002 Periodic Inspection Counting Sampling Procedure and Table (Applicable to Inspection of Process Stability)

GB 3836.1 Explosive Atmospheres Part 1: General Requirements for Equipment

GB 3836.2 Explosive Atmospheres Part 2: Equipment protected by flameproof enclosure "d"

GB 3836.3 Explosive Atmospheres Part 3: Equipment Protected by Increased Safety "e"

GB 3836.4 Explosive Atmospheres Part 4: Equipment protected by intrinsically safe "i"

GB/T 4208 enclosure protection class (IP code)

GB/T 5080.1-2012 Reliability Test Part 1: Test Conditions and Statistical Test Principles

GB 5080.7 Equipment Reliability Test - Verification Test Scheme for Failure Rate and Mean Time Between Failures under the Assumption of Constant Failure Rate

GB/T 10111 Generation of random numbers and its application in product quality sampling inspection

GB/T 15412-2017 General specification for application of TV camera pan/tilt

GB/T 17626.3-2016 Electromagnetic compatibility test and measurement technology Radio frequency electromagnetic field radiation immunity test

GB/T 17626.4-2018 Electromagnetic Compatibility Test and Measurement Technology Electrical Fast Transient Burst Immunity Test

GB/T 17626.5-2019 Electromagnetic Compatibility Test and Measurement Technology Surge (Shock) Immunity Test

AQ1043 Mining Product Safety Signs

MT210 Basic test methods for electrical and electronic products used in coal mine communication, detection and control

MT286 Coal mine communication and automation product model compilation method and management method

MT/T 772-1998 Main performance test method of coal mine monitoring system