ISO/DIS 18623-1
© ISO 2014 – All rights reserved
Contents Page
Foreword ............................................................................................................................................................................................... v
Introduction ........................................................................................................................................................................................ vi
1 Scope ....................................................................................................................................................................................... 1
2 Normative References ...................................................................................................................................................... 1
3 Terms and definitions ...................................................................................................................................................... 3
4 Safety requirements and/or protective measures ................................................................................................ 4
4.1 General ................................................................................................................................................................................... 4
4.2 Mechanical safety ............................................................................................................................................................... 4
4.2.1 Guards .................................................................................................................................................................................... 4
4.2.2 Fluid injection ..................................................................................................................................................................... 5
4.2.3 Loss of stability ................................................................................................................................................................... 6
4.2.4 Slip, trip and fall ................................................................................................................................................................. 6
4.3 Electrical safety ................................................................................................................................................................... 6
4.3.1 Generally applicable ......................................................................................................................................................... 6
4.3.2 Protection from overload ................................................................................................................................................ 7
4.3.3 Protection from live parts ............................................................................................................................................... 7
4.3.4 Portable and skid-mounted compressor units ....................................................................................................... 7
4.4 Control systems .................................................................................................................................................................. 7
4.4.1 General ................................................................................................................................................................................... 9
4.4.2 Manual reset function ....................................................................................................................................................... 9
4.4.3 Start/restart function ....................................................................................................................................................... 9
4.4.4 Emergency stop ................................................................................................................................................................ 10
4.4.5 External influences on electrical equipment ........................................................................................................ 10
4.4.6 Pneumatic and/or hydraulic control systems ...................................................................................................... 10
4.4.7 Pressure or fluid level drops ...................................................................................................................................... 10
4.5 Thermal safety ................................................................................................................................................................. 11
4.6 Noise .................................................................................................................................................................................... 11
4.7 Materials and substances processed, used or exhausted ................................................................................. 11
4.7.1 Micro-organisms, biological and microbiological substances ....................................................................... 11
4.7.2 Breathing difficulties ..................................................................................................................................................... 11
4.8 Fire and explosion .......................................................................................................................................................... 12
4.8.1 Electrostatic phenomena ............................................................................................................................................. 12
4.8.2 Oil-flooded rotary air compressor units ................................................................................................................ 12
4.8.3 Oil-lubricated reciprocating air compressor units ............................................................................................ 13
4.8.4 Oil-lubricated reciprocating compressor units operating above 50 bar ................................................... 13
4.8.5 Compressor units driven by combustion engines............................................................................................... 13
4.9 Ergonomic principles .................................................................................................................................................... 13
4.9.1 General ................................................................................................................................................................................ 13
4.9.2 Manual handling of compressor units ..................................................................................................................... 14
4.9.3 Portable and skid-mounted compressor units .................................................................................................... 14
4.10 Breaking down of machinery parts and other functional disorders ........................................................... 14
4.10.1 Break-up during operation ......................................................................................................................................... 14
4.10.2 Low temperature operation ........................................................................................................................................ 15
4.10.3 Liquid shock ...................................................................................................................................................................... 15
4.10.4 Coolant system ................................................................................................................................................................. 15
4.11 Pressure relief – fragmentation ................................................................................................................................. 15
4.11.1 General ................................................................................................................................................................................ 15
4.11.2 Design specifications of pressure relief devices .................................................................................................. 16
4.11.3 Turbo compressor units ............................................................................................................................................... 16
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