Pharmaceutical machinery - General requirements for electrical safety
1 Scope
This standard specifies the terms and definitions, power source and environment, electric shock protection, insulation protection, protective circuit, control devices, electrical safety protection in atmospheres with explosive media, electrical requirements in atmospheres with biosafety requirements, wiring, rated input power, electrical marking and technical documents involved in the general requirements for electrical safety of pharmaceutical machinery.
This standard is applicable to the electrical safety of pharmaceutical machinery (equipment) (hereinafter referred to as the equipment).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 2894-2008 Safety signs and guideline for the use
GB 3836.1-2010 Explosive atmospheres - Part 1: Equipment - General requirements
GB 3836.2-2010 Explosive atmospheres - Part 2: Equipment protection by flameproof enclosures "d"
GB 3836.3-2010 Explosive atmospheres - Part 3: Equipment protection by increased safety "e"
GB 3836.4-2010 Explosive atmospheres - Part 4: Equipment protection by intrinsic safety "i"
GB/T 3836.5-2017 Explosive atmospheres - Part 5: Equipment protection by pressurized enclosure "p"
GB/T 3836.6-2017 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
GB/T 3836.7-2017 Explosive atmospheres - Part 7: Equipment protection by powder filling "q"
GB 3836.8-2014 Explosive atmospheres - Part 8: Equipment protection by type of protection "n"
GB 3836.9-2014 Explosive atmospheres - Part 9: Equipment protection by type of protection "m"
GB 5226.1-2008 Electrical safety of machinery - Electrical equipment of machines - Part 1: General requirements
GB/T 5465.2-2008 Graphical symbols for use on electrical equipment - Part 2: Graphical symbols
GB 12476.1-2013 Electrical apparatus for use in the presence of combustible dust - Part 1: General requirements
GB 12476.4-2010 Electrical apparatus for use in the presence of combustible dust - Part 4: Protection by intrinsic safety "iD"
GB 12476.5-2013 Electrical apparatus for use in the presence of combustible dust - Part 5: Protection by enclosures "tD"
GB 12476.6-2010 Electrical apparatus for use in the presence of combustible dust - Part 6: Protection by encapsulation "mD"
GB 12476.7-2010 Electrical apparatus for use in the presence of combustible dust - Part 7: Type of protection "pD"
HG 20660-2000(2009) Standard for classification on hazards of toxicity and explosion of chemical mediums in pressure vessel
ISO 7000 Graphical symbols for use on equipment
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
pharmaceutical machinery
production equipment to complete and assist in the completion of pharmaceutical process
[GB/T 15692-2008, Definition 2.1]
3.2
rated (value)
quantity value assigned, generally by a manufacturer, to a specified operating condition of a component, device or equipment
[GB 4793.1-2007, Definition 3.3.1]
3.3
mains
low-voltage electricity supply system to which the equipment concerned is designed to be connected for the purpose of powering the equipment
Note: Some measuring circuits may also be connected to the mains for measuring purposes.
[GB 4793.1-2007, Definition 3.5.5]
3.4
normal condition
condition in which all means for protection against hazards are intact
[GB 4793.1-2007, Definition 3.5.10]
3.5
single fault condition
condition in which one means for protection against hazard is defective or one fault is present which could cause a hazard
[GB 4793.1-2007, Definition 3.5.11]
3.6
accessible (of a part)
part of equipment that can be touched without tools
[GB 4793.1-2007, Definition 3.5.1]
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Power source and environment
5 Electric shock protection
6 Insulation protection
7 Protective circuit
8 Control devices
9 Electrical safety protection in atmospheres with explosive media
10 Electrical requirements in atmospheres with biosafety requirements
11 Wiring
12 Rated input power
13 Electrical marking
14 Technical documents
Annex A (Normative) Measuring circuit for leakage current limits
Bibliography