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  • ISA 61241-18 : 2006

    Current The latest, up-to-date edition.

    ELECTRICAL APPARATUS FOR USE IN ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS - PROTECTION BY ENCAPSULATION "MD"

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2006

    Publisher:  International Society of Automation

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 References
    3 Terms and definitions
    4 General
       4.1 Temperature classification
       4.2 Level of protection
       4.3 Level of protection "maD"
       4.4 Level of protection "mbD"
       4.5 Supply specifications
    5 Requirements for compounds
       5.1 General
       5.2 Specification
    6 Temperatures
       6.1 General
       6.2 Temperature limitation
       6.3 Determination of the limiting temperature values
    7 Constructional requirements
       7.1 General
       7.2 Determination of possible faults
       7.3 Switching contacts
       7.4 External connections
       7.5 Protection of bare live parts
       7.6 Cells and batteries
       7.7 Protective devices
    8 Type tests
       8.1 Tests on the compound - water absorption test
       8.2 Tests on the apparatus
    9 Routine verifications and tests
       9.1 Visual inspections
       9.2 Dielectric strength test
    10 Marking
    Annex A (informative) Basic requirements for compounds for
                          encapsulation "mD" apparatus
    Annex B (normative) Allocation of test samples
    Annex C (normative) Test procedure during thermal cycling test
    Annex D (Informative) United States major deviations

    Abstract - (Show below) - (Hide below)

    Applies to electrical apparatus protected by encapsulation type of protection "mD" and surface temperature limitation for use in areas where combustible dust may be present in quantities which could lead to a fire or explosion hazard. Also specifies requirements for design, construction and testing of electrical apparatus, parts of electrical apparatus and Ex components where the rated voltage does not exceed 10 kV.

    General Product Information - (Show below) - (Hide below)

    Committee SP12.10
    Development Note To be read in conjunction with ISA 61241-0. (10/2006)
    Document Type Standard
    Publisher International Society of Automation
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    FM 3600 : 2018 ELECTRICAL EQUIPMENT FOR USE IN HAZARDOUS (CLASSIFIED) LOCATIONS - GENERAL REQUIREMENTS
    NFPA 70 : 2017 NATIONAL ELECTRICAL CODE
    CSA C22.4 PACKAGE : 2009 CONSISTS OF C22.4 NO. 1-09, OBJECTIVE-BASED INDUSTRIAL ELECTRICAL CODE AND C22.4 NO. 2-09, OBJECTIVE-BASED INDUSTRIAL ELECTRICAL CODE - SAFETY MANAGEMENT SYSTEM REQUIREMENTS
    CSA C22.4 No. 1 : 2009(R2018) OBJECTIVE-BASED INDUSTRIAL ELECTRICAL CODE

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
    ISA 60079-7 : 2008 EXPLOSIVE ATMOSPHERES - PART 7: EQUIPMENT PROTECTION BY INCREASED SAFETY "E"
    ISA 61241-1 : 2006 ELECTRICAL APPARATUS FOR USE IN ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS - PROTECTION BY ENCLOSURES "TD"
    ISA 60079-11 : 2002 EXPLOSIVE ATMOSPHERES - PART 11: EQUIPMENT PROTECTION BY INTRINSIC SAFETY 'I'
    IEC 61951-2:2017 Secondary cells and batteries containing alkaline or other non acid electrolytes - Secondary sealed cells and batteries for portable applications - Part 2: Nickel-metal hydride
    IEC 61960-1:2000 Secondary lithium cells and batteries for portable applications - Part 1: Secondary lithium cells
    IEC 61951-1:2017 Secondary cells and batteries containing alkaline or other non-acid electrolytes - Secondary sealed cells and batteries for portable applications - Part 1: Nickel-Cadmium
    IEC 60691:2015 Thermal-links - Requirements and application guide
    IEC 60086-1:2015 Primary batteries - Part 1: General
    ISO 62:2008 Plastics Determination of water absorption
    IEC 62326-4-1:1996 Printed boards - Part 4: Rigid multilayer printed boards with interlayer connections - Sectional specification - Section 1: Capability detail specification - Performance levels A, B and C
    UL 248-1 : 3 LOW-VOLTAGE FUSES - PART 1: GENERAL REQUIREMENTS
    IEC 61150:1992 Alkaline secondary cells and batteries - Sealed nickel-cadmium rechargeable monobloc batteries in button cell design
    IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
    ISA 61241-11 : 2006 ELECTRICAL APPARATUS FOR USE IN ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS - PROTECTION BY INTRINSIC SAFETY "ID"
    ISA 61241-0 : 2006 ELECTRICAL APPARATUS FOR USE IN ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS - GENERAL REQUIREMENTS
    IEC 60622:2002 Secondary cells and batteries containing alkaline or other non-acid electrolytes - Sealed nickel-cadmium prismatic rechargeable single cells
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