{"id":239847,"date":"2024-10-19T15:41:33","date_gmt":"2024-10-19T15:41:33","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60079-02018-tc\/"},"modified":"2024-10-25T10:24:25","modified_gmt":"2024-10-25T10:24:25","slug":"bs-en-iec-60079-02018-tc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60079-02018-tc\/","title":{"rendered":"BS EN IEC 60079-0:2018 – TC"},"content":{"rendered":"

IEC 60079-0:2017 is also available as \/2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60079-0:2017 specifies the general requirements for construction, testing and marking of Ex Equipment and Ex Components intended for use in explosive atmospheres. The standard atmospheric conditions (relating to the explosion characteristics of the atmosphere) under which it may be assumed that Ex Equipment can be operated are: -temperature \u201320 \u00b0C to +60 \u00b0C; -pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar); and -air with normal oxygen content, typically 21 % v\/v. This part of IEC 60079 and other standards supplementing this standard specify additional test requirements for Ex Equipment operating outside the standard temperature range, but further additional consideration and additional testing may be required for Ex Equipment operating outside the standard atmospheric pressure range and standard oxygen content. Such additional testing may be particularly relevant with respect to Types of Protection that depend on quenching of a flame such as \u2018 flameproof enclosures \u201cd\u201d\u2019 (IEC 60079-1) or limitation of energy, \u2018intrinsic safety \u201ci\u201d\u2019 (IEC 60079-11). This seventh edition cancels and replaces the sixth edition, published in 2011. This edition constitutes a technical revision. Refer to the Foreword of the document for a complete listing of the technical changes between edition 7.0 and the previous edition of the document. Keywords: Ex Equipment and Ex Components intended for use in explosive atmospheres The contents of the interpretation sheet of April 2019 have been included in this copy.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\ncompares BS EN IEC 60079-0:2018 <\/td>\n<\/tr>\n
2<\/td>\nTRACKED CHANGES
Test example 1 <\/td>\n<\/tr>\n
3<\/td>\nBS EN IEC 60079-0:2018 to BS EN 60079-0:2012+A11:2013 <\/td>\n<\/tr>\n
11<\/td>\nBS EN 60079-0:2012+A11:20132018 BRITISH STANDARD
Compliance with a British Standard cannot confer immunity from legal obligations.
Amendments\/corrigenda issued since publication <\/td>\n<\/tr>\n
12<\/td>\nEXPLOSIVE ATMOSPHERES \u2013
INTERPRETATION SHEET 1
Interpretation: <\/td>\n<\/tr>\n
14<\/td>\nEXPLOSIVE ATMOSPHERES \u2013
INTERPRETATION SHEET 2
Question
What are the minor editorial, extensions, and major technical changes of the 6th edition with respect to the 5th edition?
Answer
The following table shows the significance of the changes.
The significance of the changes between IEC Standard, IEC 60079-0, Edition 5, 2007-10 (Including Corrigendum No.1 and Interpretation Sheet I-SH 01) and IEC 60079-0, Edition 6, 2011-06 are as listed below: <\/td>\n<\/tr>\n
17<\/td>\nAtmosph\u00e8res explosives – Partie 0: Mat\u00e9riel – Exigences g\u00e9n\u00e9rales <\/td>\n<\/tr>\n
18<\/td>\nEndorsement notice <\/td>\n<\/tr>\n
20<\/td>\nAnnex ZA
(normative) <\/td>\n<\/tr>\n
25<\/td>\nAnnex ZY
(informative)
ZY.1 Equipment Groups and Categories
Table ZY.1
ZY.2 Instructions
ZY.3 Marking
ZY.3.1 <\/td>\n<\/tr>\n
26<\/td>\nII 1 G Ex ia IIB T4 Ga
ZY.3.2
ZY.4 Fans
ZY.4ZY.5 Significant changes between this European Standard and EN 60079-0:20092012+A11:2013 <\/td>\n<\/tr>\n
27<\/td>\nTable ZY.2 \u2013 Significant changes with respect to EN 60079-0:20092012+A11: <\/td>\n<\/tr>\n
33<\/td>\nExplanations: <\/td>\n<\/tr>\n
34<\/td>\nB) Information about the background of \u2018Major Technical changes\u2019 <\/td>\n<\/tr>\n
36<\/td>\nAnnex ZZ
(informative)
Table ZZ.1 \u2013 Correspondence between this European Standard and Annex II of Directive 2014\/34\/EU [2014 OJ L96]
WARNING: Other requirements and other EU Directives may be applicable to the products falling within the scope of this standard.. . <\/td>\n<\/tr>\n
40<\/td>\nCONTENTS <\/td>\n<\/tr>\n
46<\/td>\nINTERNATIONAL ELECTROTECHNICAL COMMISSION <\/td>\n<\/tr>\n
54<\/td>\nEXPLOSIVE ATMOSPHERES \u2013
1 Scope <\/td>\n<\/tr>\n
55<\/td>\n2 Normative references <\/td>\n<\/tr>\n
58<\/td>\n3 Terms and definitions
3.1
3.2 <\/td>\n<\/tr>\n
59<\/td>\n3.3
3.4
3.5
3.5.1
assembly of two or more cells electrically connected to each other to increase the voltage capacity or capacity
3.5.2
capacity
3.53.7 <\/td>\n<\/tr>\n
60<\/td>\n3.7.2
3.7.3
3.5.43.7.4
3.5.53.7.5
3.5.63.7.6
3.5.73.7.7
3.5.83.7.8 <\/td>\n<\/tr>\n
61<\/td>\n3.5.93.7.9
3.5.103.7.10
3.5.113.7.11
3.5.123.7.12
3.5.133.7.13
3.7.14
3.5.143.7.15 <\/td>\n<\/tr>\n
62<\/td>\nFigure 2 \u2013 Typical battery compartment
3.7.16
3.493.7.17
Figure 3 \u2013 Typical replaceable battery pack
3.63.9 <\/td>\n<\/tr>\n
63<\/td>\n3.73.10cable gland
3.7.13.10.1
3.7.23.10.2
3.7.33.10.3
3.7.43.10.4
3.7.53.10.5
3.83.12
3.8.13.12.1
3.8.23.12.2 <\/td>\n<\/tr>\n
64<\/td>\n3.13
3.93.15
3.113.17
3.123.18
3.133.19
3.143.20
3.153.21
3.163.21.1
3.173.22 <\/td>\n<\/tr>\n
65<\/td>\n3.23
3.183.24
3.18.13.24.1
3.18.1.13.24.1.1
3.18.1.23.24.1. 2
3.18.23.24.2
3.193.25 <\/td>\n<\/tr>\n
66<\/td>\n3.203.26
3.27
3.213.28
3.233.29
3.243.30
3.253.31
3.223.31.1
3.31.2
3.31.3
3.31.4
3.31.5 <\/td>\n<\/tr>\n
67<\/td>\n3.263.33
3.26.13.33.1
3.26.23.33.2
3.26.33.33.3
3.26.43.33.4
3.26.53.33.5
3.26.63.33.6
3.26.73.33.7 <\/td>\n<\/tr>\n
68<\/td>\n3.26.83.33.8
3.273.34
3.28
3.293.35
3.36
3.303.38
3.313.39
3.303.40
3.333.41
3.42
fault, countable <\/td>\n<\/tr>\n
69<\/td>\n3.43
fault, non-countable
3.343.44
firedamp
flammable mixture of gases naturally occurring in a mine
3.353.45
free space
3.46
fuse
3.363.47
galvanic isolation
3.48
gasket
3.38
ignition temperature of a dust layer
lowest temperature of a hot surface at which ignition occurs in a dust layer of specified thickness on a hot surface
NOTE The ignition temperature of a dust layer may be determined by the test method given in IEC 61241-2-1.
3.39
ignition temperature of a dust cloud
lowest temperature of the hot inner wall of a furnace at which ignition occurs in a dust cloud in air contained therein
NOTE The ignition temperature of a dust cloud may be determined by the test method given in IEC 61241-2-1.
3.42
highest temperature which is attained in service under the most adverse conditions (but within the specified tolerances) by any part or surface of electrical equipment
NOTE 1 For electrical equipment in an explosive gas atmosphere, this temperature may occur on an internal component or on the external surface of the enclosure, depending upon the type of protection employed
NOTE 2 For electrical equipment in an explosive dust atmosphere, this temperature occurs on the external surface of the enclosure and may include a defined dust layer condition. <\/td>\n<\/tr>\n
70<\/td>\n3.50
hybrid mixture
mixture of a flammable gas or vapour with a dust
Note 1 to entry: According to ISO\/IEC 80079-20-2, the term \u201cdust\u201d is defined as including both combustible dust and combustible flyings
3.51
infallible separation
3.52
3.443.53
3.403.54
limiting temperature
a) the danger of ignition of the explosive atmosphere;
a) the maximum surface temperature;
b) the thermal stability of the materials used
3.55
lower flammable limit
LFL
3.413.56
malfunction
\u2013 failure of one (or more) of the component parts of the equipment or components;
\u2013 external disturbances (e.g. shocks, vibration, electromagnetic fields);
\u2013 design error or deficiency (e.g. software errors);
\u2013 disturbance of the power supply or other services;
3.41.13.56.1
expected malfunction, expected <\/td>\n<\/tr>\n
71<\/td>\n3.41.23.56.2
3.57
maximum surface temperature
3.373.58
minimum ignition temperature of an explosive gas atmosphere
Note 1 to entry: This term and \u201cAuto-Ignition Temperature\u201d are often used interchangeably
3.59
minimum ignition temperature of a dust layer
3.60
minimum ignition temperature of a dust cloud
3.61
mist
3.433.62
normal operation
3.63
3.453.64 <\/td>\n<\/tr>\n
72<\/td>\n3.65
3.66
3.67
3.68
3.463.69
3.46.13.69.1
3.46.23.69.2
3.46.33.69.3
3.46.43.69.4
threshold energy
Zth
3.46.53.69.5 <\/td>\n<\/tr>\n
73<\/td>\n3.69.6
3.71
3.483.72
3.73
3.74
3.75
3.76
3.77
separation element
3.78 <\/td>\n<\/tr>\n
74<\/td>\n3.503.79
service temperature
NOTENote 1 to entry: Equipment may reach different service temperatures in different parts.
3.80
solid insulation
electrical insulation material which is extruded or moulded, but not poured
3.513.81
spacings, electrical
separation distances between conductive parts at different electrical potentials
3.51.13.81.1
clearance
shortest distance in air between two conductive parts
3.51.23.81.2
creepage distance
3.51.33.81.3
3.51.43.81.4
3.51.53.81.5
3.82
3.523.83
symbol \u201cU\u201d
3.533.84 <\/td>\n<\/tr>\n
75<\/td>\n3.85
3.543.86
3.553.87
3.563.88
3.573.89
3.90
3.91
3.583.92
3.593.93 <\/td>\n<\/tr>\n
76<\/td>\n4 Equipment grouping
4.1 General
4.14.2 Group I
4.24.3 Group II
Group II subdivisions:
IIA, a typical gas is propane;
IIB, a typical gas is ethylene;
IIC, typical gas isgases are hydrogen and acetylene.
4.34.4 Group III
Group III subdivisions:
IIIA: combustible flyings;
IIIB: non-conductive dust;
IIIC: conductive dust. <\/td>\n<\/tr>\n
77<\/td>\n4.44.5 Equipment for a particular explosive gas atmosphere
5 Temperatures
5.1 Environmental influences
5.1.1 Ambient temperature
Table 1 \u2013 Ambient temperatures in service and additional marking
5.1.2 External source of heating or cooling
5.2 Service temperature <\/td>\n<\/tr>\n
78<\/td>\n5.3 Maximum surface temperature
5.3.1 Determination of maximum surface temperature
Maximum surface temperature shall be determined according to 26.5.1 considering the maximum ambient temperature and, where relevant, the maximum rated external source of heating.
5.3.2 Limitation of maximum surface temperature
5.3.2.2 Group II electrical equipment
The maximum surface temperature determined (see 26.5.1) shall not exceed:
Table 2 \u2013 Classification of maximum surface temperatures for Group II electrical equipment <\/td>\n<\/tr>\n
79<\/td>\n5.3.2.3 Group III electrical equipment
5.3.2.3.3 Maximum surface temperature determined without a layer of dust for EPL Dc
5.3.3 Small component temperature for Group I or Group II electrical equipment <\/td>\n<\/tr>\n
80<\/td>\nTable 3a3 \u2013 Assessment of temperature classification according to component size at 40 \u00baC ambient temperature
5.3.4 Component temperature of smooth surfaces for Group I or Group II electrical equipment <\/td>\n<\/tr>\n
81<\/td>\n6 Requirements for all electrical equipment
6.1 General
6.2 Mechanical strength of equipment
6.3 Opening times <\/td>\n<\/tr>\n
82<\/td>\n6.4 Circulating currents in enclosures (e.g. of large electricalelectric machines)
6.5 Gasket retention
6.6 Electromagnetic and ultrasonic energy radiating equipment
6.6.1 General
6.6.16.6.2 Radio frequency sources <\/td>\n<\/tr>\n
83<\/td>\nTable 45 \u2013Radio frequency Threshold power thresholds
Table 56 \u2013 Radio-frequencyThreshold energy thresholds
6.6.2 Lasers or other continuous wave sources <\/td>\n<\/tr>\n
84<\/td>\n6.6.3 Ultrasonic sources
6.6.4 Lasers, luminaires, and other non-divergent continuous wave optical sources
7 Non-metallic enclosures and non-metallic parts of enclosures
7.1 General
7.1.1 Applicability <\/td>\n<\/tr>\n
85<\/td>\n7.1.2 Specification of materials
7.1.2.2 Plastic materials
7.1.2.3 Elastomers <\/td>\n<\/tr>\n
86<\/td>\n7.1.2.4 Materials used for cementing
7.2 Thermal endurance
7.2.1 Tests for thermal endurance
7.2.2 Material selection
7.2.3 Alternative qualification of elastomeric sealing O-rings <\/td>\n<\/tr>\n
87<\/td>\n7.3 Resistance to ultraviolet light
7.4 Electrostatic charges on external non-metallic materials
7.4.1 Applicability
7.4.2 Avoidance of a build-up of electrostatic charge onfor Group I or Group II electrical equipment <\/td>\n<\/tr>\n
89<\/td>\nTable 67 \u2013 Limitation of surface areas
Table 78 \u2013 Maximum diameter or width
Table 89 \u2013 Limitation of thickness of non-metallic layer <\/td>\n<\/tr>\n
90<\/td>\nTable 10 \u2013 Maximum acceptable transferred charge
7.4.3 Avoidance of a build-up of electrostatic charge on equipment for Group III
Painted\/coated metal equipment and equipmentExternal surface of enclosures of plastic material shall and painted\/coated metal enclosures are intended to be so designed so that under normal conditions of use, danger of ignition due to propagating brush…
Enclosures of plastic material cannot be charged to such a critical charge density that propagating brush discharges can be generated. However, no extended flat conductive surfaces shall be installed inside the enclosure within a distance of 8 mm to t…
NOTE 1 An internal printed circuit board may be considered to be an extended flat conductive surface, though this need not be applied in small hand-heldportable or personal equipment unless the equipment is likely to be subjected to a prolific charge … <\/td>\n<\/tr>\n
91<\/td>\n7.5 Accessible metalAttached external conductive parts
Table 911 \u2013 Maximum capacitance of unearthed metalconductive parts
8 Metallic enclosures and metallic parts of enclosures
8.1 Material composition <\/td>\n<\/tr>\n
92<\/td>\n8.2 Group I
8.3 Group II
8.4 Group III
8.5 Copper Alloys <\/td>\n<\/tr>\n
93<\/td>\n9 Fasteners
9.1 General
9.2 Special fasteners
9.3 Holes for special fasteners
9.3.1 Thread engagement
9.3.2 Tolerance and clearance <\/td>\n<\/tr>\n
94<\/td>\nFigure 14 \u2013 Tolerances and clearance for threaded fasteners
Figure 25 \u2013 Contact surface under head of fastener with a reduced shank
9.3.39.4 Hexagon socket set screws
In the case of threaded holes for hexagonHexagon socket set screws, the used to secure threaded holecovers, shall have a tolerance class of 6H in accordance with ISO 965-1 and ISO 965-3 and the set screw shall not protrude from the threaded hole after…
10 Interlocking devices
Where an interlocking device is used to maintain a specific typeType of protectionProtection, it shall be so constructed that its effectiveness cannot easily be defeated.
NOTE The intent is that the interlock be designed such that it cannot be easily defeated by common tools such as a screwdriver, pliers, or a similar tool.
11 Bushings
Bushings used as field wiring connection facilities and which may be subjected to a torque during connection or disconnection, shall be mounted in such a way that all parts are secured against turning. <\/td>\n<\/tr>\n
95<\/td>\nThe relevant torque test is specified in 26.6.
12 Materials used (Reserved for cementing future use)
The documents, according to Clause 24, shall include a data sheet or statement from the cement manufacturer to show that, the materials used for cementing on which the type of protection depends, have a thermal stability adequate for the minimum and m…
The materials used for cementing shall have a continuous operating temperature (COT) range that includes a minimum temperature that is below, or equal to, the minimum service temperature and a maximum temperature that is at least 20 K above the maximu…
NOTE 1 Equipment may have different service temperatures on different parts of the equipment. Selection and testing of individual materials is based on the specific service temperature of that part, but may alternatively be based on the maximum (or mi…
NOTE 2 If the cementing is to withstand adverse service conditions, appropriate measures should be agreed between the user and the manufacturer (see 6.1).
13 Ex Components
13.1 General
Ex Components shall comply with the requirements given in Annex B. Examples of Ex Components include:
13.2 Mounting
13.3 Internal mounting
13.4 External mounting
13.5 Ex Component certificate <\/td>\n<\/tr>\n
96<\/td>\n14 Connection facilities and termination compartments
14.1 General
14.2 Termination compartment
14.314.2 Type of protection
14.414.3 Creepage and clearance
15 Connection facilities for earthing or bonding conductors
15.1 Equipment requiring earthing or bonding
15.1.1 Internal earthing
15.1.2 External bonding
15.2 Equipment not requiring earthing <\/td>\n<\/tr>\n
97<\/td>\n15.3 Size of protective earthing conductor connection
Table 1012 \u2013 Minimum cross-sectional area of PE conductors
15.4 Size of equipotential bonding conductor connection
15.415.5 Protection against corrosion
15.515.6 Secureness of electrical connections
15.7 Internal earth continuity plate
16 Entries into enclosures
16.1 General <\/td>\n<\/tr>\n
98<\/td>\n16.2 Identification of entries
16.3 Cable glands
16.4 Blanking elements <\/td>\n<\/tr>\n
99<\/td>\n16.5 Thread adapters
16.6 Temperature at branching point and entry point
16.7 Electrostatic charges of cable sheaths
Figure 3a6 \u2013 Cable gland <\/td>\n<\/tr>\n
100<\/td>\n17 Supplementary requirements for rotating electric machines
17.1 General
17.117.2 Ventilation
17.1.117.2.1 Ventilation openings
17.1.217.2.2 Materials for external fans
17.1.317.2.3 Cooling fans of rotating electric machines
17.1.3.117.2.3.1 Fans and fan hoods
17.1.3.217.2.3.2 Construction and mounting of the ventilating systems <\/td>\n<\/tr>\n
101<\/td>\n17.1.3.317.2.3.3 Clearances for the ventilating system
17.1.417.2.4 Auxiliary motor cooling fans
17.2.5 Room ventilating fans
17.2.5.1 Applicability
17.2.5.2 General
17.1.5 Ventilating fans
17.2.5.3 Fan and fan hoods
17.2.5.4 Construction and mounting <\/td>\n<\/tr>\n
102<\/td>\n17.2.5.5 Clearances for rotating parts
17.217.3 Bearings
18 Supplementary requirements for switchgear
18.1 Flammable dielectric
18.2 Disconnectors <\/td>\n<\/tr>\n
103<\/td>\n18.3 Group I \u2013 Provisions for locking
18.4 Doors and covers
19 Supplementary requirementsReserved for fusesfuture use
20 Supplementary requirements for external plugs, socket outlets and connectorsconnectors for field wiring connection
20.1 General <\/td>\n<\/tr>\n
104<\/td>\n20.2 Explosive gas atmospheres
20.3 Explosive dust atmospheres
20.4 Energized plugs
21 Supplementary requirements for luminaires
21.1 General
21.2 Covers for luminaires of EPL Mb, EPL Gb, or EPL Db <\/td>\n<\/tr>\n
105<\/td>\n21.3 Covers for luminaires of EPL Gc or EPL Dc
a) interlocked with a device which automatically disconnects all poles of the lampholder as soon asduring the cover opening procedure begins, or,
b) marked with the opening marking as required by item d) of 29.12.29.13.
21.4 Sodium lamps
22 Supplementary requirements for caplights and handlights
22.1 Group I caplights
22.2 Group II and Group III caplights and handlights <\/td>\n<\/tr>\n
106<\/td>\nNOTE Handlights include battery-powered lights which are also referred to as torches or flashlights.
23 Equipment incorporating cells and batteries
23.1 General
23.223.2 BatteriesInterconnection of cells to form batteries
23.3 Cell types
Only cell types referred to in published IEC cell standards having known characteristics Table 13 or Table 14 shall be used. Tables 11 and 12 below list cells for which suitable standards either exist or are to be produced. <\/td>\n<\/tr>\n
107<\/td>\nTable 1113 \u2013 Primary cells <\/td>\n<\/tr>\n
108<\/td>\nTable 1214 \u2013 Secondary cells <\/td>\n<\/tr>\n
110<\/td>\n23.4 Cells in a battery
23.5 Ratings of batteries
23.6 Interchangeability
23.7 Charging of primary batteries
23.8 Leakage
23.9 Connections
23.10 Orientation
23.11 Replacement of cells or batteries <\/td>\n<\/tr>\n
111<\/td>\n23.12 Replaceable battery pack
24 Documentation
25 Compliance of prototype or sample with documents
26 Type tests
26.1 General
26.2 Test configuration
26.3 Tests in explosive test mixtures <\/td>\n<\/tr>\n
112<\/td>\n26.4 Tests of enclosures
26.4.1 Order of tests
26.4.1.1 Metallic enclosures, metallic parts of enclosures and glass or ceramic parts of enclosures
\u2013 tests for resistance to impact (see 26.4.2);
\u2013 drop test, if applicable (see 26.4.3);
\u2013 tests for degrees of protection (IP) (see 26.4.5);
\u2013 any other tests required by this standard;
\u2013 any other test specific to the typeType of protectionProtection concerned.
Tests shall be made on the number of samples specified by each test method.
26.4.1.2 Non-metallic enclosures or non-metallic parts of enclosures
26.4.1.2.1 General <\/td>\n<\/tr>\n
113<\/td>\n26.4.1.2.226.4.1.2.3 Group II and Group III electrical equipment
26.4.2 Resistance to impact <\/td>\n<\/tr>\n
114<\/td>\nTable 1315 \u2013 Tests for resistance to impact <\/td>\n<\/tr>\n
115<\/td>\n26.4.3 Drop test
26.4.4 Acceptance criteria
26.4.5 Degree of protection (IP) by enclosures
26.4.5.1 Test procedure
\u2013 enclosures shall be considered as belonging to \u201cCategory 1 enclosure\u201d as specified in IEC 60529,
\u2013 the equipment shall not be energized,
\u2013 where applicable, the dielectric test specified in IEC 60529 shall be carried out at [(2 Un + 1 000) \u00b1 10 %] V r.m.s.RMS. applied between 10 s and 12 s, where Un is the maximum rated or internal voltage of the equipment. <\/td>\n<\/tr>\n
116<\/td>\nWhen tested in accordance with IEC 60034-5, the rotating electrical machine shall not be energized,
26.4.5.2 Acceptance criteria
26.5 Thermal tests
26.5.1 Temperature measurement <\/td>\n<\/tr>\n
117<\/td>\n26.5.1.2 Service temperature
26.5.1.3 Maximum surface temperature <\/td>\n<\/tr>\n
118<\/td>\n26.5.2 Thermal shock test
26.5.3 Small component ignition test (Group I and Group II)
26.5.3.2 Procedure <\/td>\n<\/tr>\n
119<\/td>\n26.5.3.3 Acceptance criteria
26.6 Torque test for bushings
26.6.1 Test procedure
Table 1416 \u2013 Torque to be applied to the stem of bushing used for connection facilities <\/td>\n<\/tr>\n
120<\/td>\n26.6.2 Acceptance criteria
26.7 Non-metallic enclosures or non-metallic parts of enclosures
26.7.1 General
26.7.2 Test temperatures
26.8 Thermal endurance to heat
Table 1517 \u2013 Thermal endurance test <\/td>\n<\/tr>\n
121<\/td>\n26.9 Thermal endurance to cold <\/td>\n<\/tr>\n
122<\/td>\n26.10 Resistance to UV light
26.10.1 Test procedureGeneral
26.10.2 Light exposure
26.10.226.10.3 Acceptance criteria <\/td>\n<\/tr>\n
123<\/td>\n26.11 Resistance to chemical agents for Group I electrical equipment
26.12 Earth continuity <\/td>\n<\/tr>\n
124<\/td>\nFigure 48 \u2013 Assembly of test sample for earth-continuity test
26.13 Surface resistance test of parts of enclosures of non-metallic materials <\/td>\n<\/tr>\n
125<\/td>\n26.14 Measurement of capacitance
26.14.1 General
26.14.2 Test procedure <\/td>\n<\/tr>\n
126<\/td>\n26.15 Verification of ratings of ventilating fans
26.16 Alternative qualification of elastomeric sealing O-rings
Figure 610 \u2013 Compression set of an O-ring
26.17 Transferred charge test
26.17.1 Test equipment <\/td>\n<\/tr>\n
127<\/td>\n26.17.2 Test sample
26.17.3 Test procedure <\/td>\n<\/tr>\n
128<\/td>\n27 Routine tests
28 Manufacturer’s responsibility
28.1 Conformity with the documentation
28.2 Certificate <\/td>\n<\/tr>\n
129<\/td>\n28.3 Responsibility for marking
29 Marking
29.1 Applicability
29.2 Location
29.3 General
a) the name and address of the manufacturer; or his registered trade mark;
b) the manufacturer’s type identification; <\/td>\n<\/tr>\n
130<\/td>\n29.4 Ex marking for explosive gas atmospheres <\/td>\n<\/tr>\n
132<\/td>\n29.5 Ex marking for explosive dust atmospheres <\/td>\n<\/tr>\n
134<\/td>\n29.6 Combined types (or levels) of protection <\/td>\n<\/tr>\n
135<\/td>\n29.7 Multiple types of protection
29.8 Ga equipment using two independent Gb types (or levels) of protection
29.9 Boundary wall <\/td>\n<\/tr>\n
136<\/td>\n29.1029.11 Small Ex equipmentEquipment and small Ex Components
29.1129.12 Extremely small equipmentEx Equipment and extremely small Ex Components
29.1229.13 Warning markings <\/td>\n<\/tr>\n
137<\/td>\nTable 1618 \u2013 Text of warning markings
29.13 Alternate marking of equipment protection levels (EPLs)
29.13.1 Alternate marking of type of protection for explosive gas atmospheres <\/td>\n<\/tr>\n
138<\/td>\n29.13.2 Alternate marking of type of protection for explosive dust atmospheres
29.14 Cells and batteries
29.15 Converter-fed electricalElectric machines operated with a converter
\u2022 \u201cFor Converter Supply\u201dOperation\u201d; <\/td>\n<\/tr>\n
139<\/td>\n29.16 Examples of marking 12 <\/td>\n<\/tr>\n
142<\/td>\n30 Instructions
30.1 General <\/td>\n<\/tr>\n
144<\/td>\n30.2 Cells and batteries
Table 19 \u2013 Example of type-test converter parameters
30.4 Ventilating fans
For Group I equipment, the applicable requirements of EN 1710 shall be applied. <\/td>\n<\/tr>\n
145<\/td>\n30.5 Cable glands <\/td>\n<\/tr>\n
146<\/td>\n(normative)
A.1 General
A.2 Constructional requirements
A.2.1 Cable sealing <\/td>\n<\/tr>\n
147<\/td>\nFigure A.1 \u2013 Illustration of the terms used for cable glands
A.2.2 Filling compounds
A.2.3 Clamping
A.2.3.2 Group II or III cable glands
A.2.4 Lead-in of cable <\/td>\n<\/tr>\n
148<\/td>\nA.2.4.2 Point of entry
Figure A.2 \u2013 Rounded edge of the point of entry of the flexible cable
A.2.5 Release by a tool
A.2.6 Fixing
A.2.7 Degree of protection
A.3 Type tests
A.3.1 Tests of clamping of non-armoured and braided cables
A.3.1.1 Cable glands with clamping by the sealing ring <\/td>\n<\/tr>\n
150<\/td>\nA.3.1.2 Cable glands with clamping by filling compound
A.3.1.3 Cable glands with clamping by means of a clamping device <\/td>\n<\/tr>\n
151<\/td>\nA.3.1.4 TensileClamping test
A.3.1.5 Mechanical strength
A.3.2 Tests of clamping of armoured cables <\/td>\n<\/tr>\n
152<\/td>\nA.3.2.1.1A.3.2.1.2 TensileClamping test
A.3.2.1.2A.3.2.1.3 Mechanical strength
A.3.2.2 Tests of clamping where the armourings are not clamped by a device within integral to the gland
A.3.3 Type test for resistance to impact <\/td>\n<\/tr>\n
153<\/td>\nFigure A.3 \u2013 Example of rig for resistance to impact test
A.3.4 Test for degree of protection (IP) of cable glands <\/td>\n<\/tr>\n
154<\/td>\nA.4 Marking
A.4.1 Marking of cable glands
A.4.2 MarkingIdentification of cable-sealing rings
A.5 Instructions <\/td>\n<\/tr>\n
156<\/td>\nAnnex B
(normative)
Table B.1 \u2013 Clauses with which Applicability of clauses to Ex Components shall comply <\/td>\n<\/tr>\n
161<\/td>\nAnnex C
(informative) <\/td>\n<\/tr>\n
162<\/td>\nFigure C.1 \u2013 Example of rig for resistance to impact test <\/td>\n<\/tr>\n
163<\/td>\nAnnex D
(informative) <\/td>\n<\/tr>\n
164<\/td>\nAnnex E
(informative) <\/td>\n<\/tr>\n
167<\/td>\nAnnex F
(informative) <\/td>\n<\/tr>\n
168<\/td>\nFigure F.1 \u2013 Non-metallic enclosures or non-metallic parts of enclosures <\/td>\n<\/tr>\n
169<\/td>\nAnnex G
(informative) <\/td>\n<\/tr>\n
170<\/td>\nAnnex H
(informative)
H.1 General
H.2 Assessment of the risk of ignition using ignition energy calculation <\/td>\n<\/tr>\n
171<\/td>\nTable H.1 \u2013 Maximum permitted energy
H.3 Shaft voltage determination for a rotating machine
H.4 Capacitance \u201cC\u201d calculation for a rotating machine <\/td>\n<\/tr>\n
173<\/td>\nFigure H.2 \u2013 Air-gap between stator and rotor <\/td>\n<\/tr>\n
174<\/td>\nFigure H.3 \u2013 Typical surfaces that form capacitors from the motor shaft to ground
H.5 Energy \u201cE\u201d calculation for a rotating machine
H.6 Assessment using reference curves <\/td>\n<\/tr>\n
175<\/td>\nFigure H.4 \u2013 Capacitive ignition curves <\/td>\n<\/tr>\n
176<\/td>\nBibliography <\/td>\n<\/tr>\n
181<\/td>\nundefined <\/td>\n<\/tr>\n
198<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
204<\/td>\nFOREWORD <\/td>\n<\/tr>\n
211<\/td>\n1 Scope <\/td>\n<\/tr>\n
212<\/td>\n2 Normative references <\/td>\n<\/tr>\n
214<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
216<\/td>\nFigures
Figure 1 \u2013 Typical battery examples <\/td>\n<\/tr>\n
217<\/td>\nFigure 2 \u2013 Typical battery compartment <\/td>\n<\/tr>\n
218<\/td>\nFigure 3 \u2013 Typical replaceable battery pack <\/td>\n<\/tr>\n
232<\/td>\n4 Equipment grouping
4.1 General
4.2 Group I
4.3 Group II
4.4 Group III <\/td>\n<\/tr>\n
233<\/td>\n4.5 Equipment for a particular explosive gas atmosphere
5 Temperatures
5.1 Environmental influences
5.1.1 Ambient temperature
5.1.2 External source of heating or cooling
5.2 Service temperature
Tables
Table 1 \u2013 Ambient temperatures in service and additional marking <\/td>\n<\/tr>\n
234<\/td>\n5.3 Maximum surface temperature
5.3.1 Determination of maximum surface temperature
5.3.2 Limitation of maximum surface temperature
Table 2 \u2013 Classification of maximum surface temperatures for Group II electrical equipment <\/td>\n<\/tr>\n
235<\/td>\n5.3.3 Small component temperature for Group I or Group II electrical equipment <\/td>\n<\/tr>\n
236<\/td>\n5.3.4 Component temperature of smooth surfaces for Group I or Group II electrical equipment
Table 3 \u2013 Assessment of temperature classification according to component size
Table 4 \u2013 Assessment of temperature classification Component surface area \u2265 20 mm2 <\/td>\n<\/tr>\n
237<\/td>\n6 Requirements for all equipment
6.1 General
6.2 Mechanical strength of equipment
6.3 Opening times <\/td>\n<\/tr>\n
238<\/td>\n6.4 Circulating currents in enclosures (e.g. of large electric machines)
6.5 Gasket retention
6.6 Electromagnetic and ultrasonic energy radiating equipment
6.6.1 General
6.6.2 Radio frequency sources <\/td>\n<\/tr>\n
239<\/td>\n6.6.3 Ultrasonic sources
Table 5 \u2013 Threshold power
Table 6 \u2013 Threshold energy <\/td>\n<\/tr>\n
240<\/td>\n6.6.4 Lasers, luminaires, and other non-divergent continuous wave optical sources
7 Non-metallic enclosures and non-metallic parts of enclosures
7.1 General
7.1.1 Applicability
7.1.2 Specification of materials <\/td>\n<\/tr>\n
241<\/td>\n7.2 Thermal endurance
7.2.1 Tests for thermal endurance <\/td>\n<\/tr>\n
242<\/td>\n7.2.2 Material selection
7.2.3 Alternative qualification of elastomeric sealing O-rings
7.3 Resistance to ultraviolet light <\/td>\n<\/tr>\n
243<\/td>\n7.4 Electrostatic charges on external non-metallic materials
7.4.1 Applicability
7.4.2 Avoidance of a build-up of electrostatic charge for Group I or Group II <\/td>\n<\/tr>\n
244<\/td>\nTable 7 \u2013 Limitation of surface areas <\/td>\n<\/tr>\n
245<\/td>\n7.4.3 Avoidance of a build-up of electrostatic charge for Group III
Table 8 \u2013 Maximum diameter or width
Table 9 \u2013 Limitation of thickness of non-metallic layer
Table 10 \u2013 Maximum acceptable transferred charge <\/td>\n<\/tr>\n
246<\/td>\n7.5 Attached external conductive parts <\/td>\n<\/tr>\n
247<\/td>\n8 Metallic enclosures and metallic parts of enclosures
8.1 Material composition
8.2 Group I
8.3 Group II
Table 11 \u2013 Maximum capacitance of unearthed conductive parts <\/td>\n<\/tr>\n
248<\/td>\n8.4 Group III
8.5 Copper Alloys
9 Fasteners
9.1 General <\/td>\n<\/tr>\n
249<\/td>\n9.2 Special fasteners
9.3 Holes for special fasteners
9.3.1 Thread engagement
9.3.2 Tolerance and clearance
Figure 4 \u2013 Tolerances and clearance for threaded fasteners <\/td>\n<\/tr>\n
250<\/td>\n9.4 Hexagon socket set screws
10 Interlocking devices
11 Bushings
12 (Reserved for future use)
13 Ex Components
13.1 General
Figure 5 \u2013 Contact surface under head of fastener with a reduced shank <\/td>\n<\/tr>\n
251<\/td>\n13.2 Mounting
13.3 Internal mounting
13.4 External mounting
13.5 Ex Component certificate
14 Connection facilities
14.1 General <\/td>\n<\/tr>\n
252<\/td>\n14.2 Type of protection
14.3 Creepage and clearance
15 Connection facilities for earthing or bonding conductors
15.1 Equipment requiring earthing or bonding
15.1.1 Internal earthing
15.1.2 External bonding
15.2 Equipment not requiring earthing
15.3 Size of protective earthing conductor connection <\/td>\n<\/tr>\n
253<\/td>\n15.4 Size of equipotential bonding conductor connection
15.5 Protection against corrosion
15.6 Secureness of electrical connections
15.7 Internal earth continuity plate
16 Entries into enclosures
16.1 General
16.2 Identification of entries
Table 12 \u2013 Minimum cross-sectional area of PE conductors <\/td>\n<\/tr>\n
254<\/td>\n16.3 Cable glands
16.4 Blanking elements
16.5 Thread adapters <\/td>\n<\/tr>\n
255<\/td>\n16.6 Temperature at branching point and entry point
16.7 Electrostatic charges of cable sheaths
Figure 6 \u2013 Cable gland
Figure 7 \u2013 Conduit entry <\/td>\n<\/tr>\n
256<\/td>\n17 Supplementary requirements for electric machines
17.1 General
17.2 Ventilation
17.2.1 Ventilation openings
17.2.2 Materials for external fans
17.2.3 Cooling fans of rotating electric machines <\/td>\n<\/tr>\n
257<\/td>\n17.2.4 Auxiliary motor cooling fans
17.2.5 Room ventilating fans <\/td>\n<\/tr>\n
258<\/td>\n17.3 Bearings
18 Supplementary requirements for switchgear
18.1 Flammable dielectric
18.2 Disconnectors <\/td>\n<\/tr>\n
259<\/td>\n18.3 Group I \u2013 Provisions for locking
18.4 Doors and covers
19 Reserved for future use
20 Supplementary requirements for external plugs, socket outlets and connectors for field wiring connection
20.1 General <\/td>\n<\/tr>\n
260<\/td>\n20.2 Explosive gas atmospheres
20.3 Explosive dust atmospheres
20.4 Energized plugs
21 Supplementary requirements for luminaires
21.1 General
21.2 Covers for luminaires of EPL Mb, EPL Gb, or EPL Db <\/td>\n<\/tr>\n
261<\/td>\n21.3 Covers for luminaires of EPL Gc or EPL Dc
21.4 Sodium lamps
22 Supplementary requirements for caplights and handlights
22.1 Group I caplights
22.2 Group II and Group III caplights and handlights \u2003 <\/td>\n<\/tr>\n
262<\/td>\n23 Equipment incorporating cells and batteries
23.1 General
23.2 Interconnection of cells to form batteries
23.3 Cell types
Table 13 \u2013 Primary cells <\/td>\n<\/tr>\n
264<\/td>\nTable 14 \u2013 Secondary cells <\/td>\n<\/tr>\n
265<\/td>\n23.4 Cells in a battery
23.5 Ratings of batteries
23.6 Interchangeability
23.7 Charging of primary batteries
23.8 Leakage
23.9 Connections
23.10 Orientation
23.11 Replacement of cells or batteries <\/td>\n<\/tr>\n
266<\/td>\n23.12 Replaceable battery pack
24 Documentation
25 Compliance of prototype or sample with documents
26 Type tests
26.1 General
26.2 Test configuration
26.3 Tests in explosive test mixtures <\/td>\n<\/tr>\n
267<\/td>\n26.4 Tests of enclosures
26.4.1 Order of tests <\/td>\n<\/tr>\n
269<\/td>\n26.4.2 Resistance to impact <\/td>\n<\/tr>\n
270<\/td>\n26.4.3 Drop test
Table 15 \u2013 Tests for resistance to impact <\/td>\n<\/tr>\n
271<\/td>\n26.4.4 Acceptance criteria
26.4.5 Degree of protection (IP) by enclosures <\/td>\n<\/tr>\n
272<\/td>\n26.5 Thermal tests
26.5.1 Temperature measurement <\/td>\n<\/tr>\n
274<\/td>\n26.5.2 Thermal shock test
26.5.3 Small component ignition test (Group I and Group II) <\/td>\n<\/tr>\n
275<\/td>\n26.6 Torque test for bushings
26.6.1 Test procedure
Table 16 \u2013 Torque to be applied to the stem of bushing used for connection facilities <\/td>\n<\/tr>\n
276<\/td>\n26.6.2 Acceptance criteria
26.7 Non-metallic enclosures or non-metallic parts of enclosures
26.7.1 General
26.7.2 Test temperatures
26.8 Thermal endurance to heat
Table 17 \u2013 Thermal endurance test <\/td>\n<\/tr>\n
277<\/td>\n26.9 Thermal endurance to cold
26.10 Resistance to UV light
26.10.1 General <\/td>\n<\/tr>\n
278<\/td>\n26.10.2 Light exposure
26.10.3 Acceptance criteria
26.11 Resistance to chemical agents for Group I equipment <\/td>\n<\/tr>\n
279<\/td>\n26.12 Earth continuity <\/td>\n<\/tr>\n
280<\/td>\n26.13 Surface resistance test of parts of enclosures of non-metallic materials
Figure 8 \u2013 Assembly of test sample for earth-continuity test <\/td>\n<\/tr>\n
281<\/td>\n26.14 Measurement of capacitance
26.14.1 General
26.14.2 Test procedure
Figure 9 \u2013 Test piece with painted electrodes <\/td>\n<\/tr>\n
282<\/td>\n26.15 Verification of ratings of ventilating fans
26.16 Alternative qualification of elastomeric sealing O-rings
26.17 Transferred charge test
26.17.1 Test equipment
Figure 10 \u2013 Compression set of an O-ring <\/td>\n<\/tr>\n
283<\/td>\n26.17.2 Test sample
26.17.3 Test procedure <\/td>\n<\/tr>\n
284<\/td>\n27 Routine tests
28 Manufacturer’s responsibility
28.1 Conformity with the documentation <\/td>\n<\/tr>\n
285<\/td>\n28.2 Certificate
28.3 Responsibility for marking
29 Marking
29.1 Applicability
29.2 Location
29.3 General <\/td>\n<\/tr>\n
286<\/td>\n29.4 Ex marking for explosive gas atmospheres <\/td>\n<\/tr>\n
288<\/td>\n29.5 Ex marking for explosive dust atmospheres <\/td>\n<\/tr>\n
291<\/td>\n29.6 Combined types (or levels) of protection
29.7 Multiple types of protection
29.8 Ga equipment using two independent Gb types (or levels) of protection
29.9 Boundary wall
29.10 Ex Components <\/td>\n<\/tr>\n
292<\/td>\n29.11 Small Ex Equipment and small Ex Components
29.12 Extremely small Ex Equipment and extremely small Ex Components
29.13 Warning markings <\/td>\n<\/tr>\n
293<\/td>\n29.14 Cells and batteries
29.15 Electric machines operated with a converter
Table 18 \u2013 Text of warning markings <\/td>\n<\/tr>\n
294<\/td>\n29.16 Examples of marking <\/td>\n<\/tr>\n
297<\/td>\n30 Instructions
30.1 General <\/td>\n<\/tr>\n
298<\/td>\n30.2 Cells and batteries <\/td>\n<\/tr>\n
299<\/td>\n30.3 Electric machines
30.4 Ventilating fans
Table 19 \u2013 Example of type-test converter parameters <\/td>\n<\/tr>\n
300<\/td>\n30.5 Cable glands <\/td>\n<\/tr>\n
301<\/td>\nAnnexes
Annex A (normative) Supplementary requirements for cable glands
A.1 General
A.2 Constructional requirements
A.2.1 Cable sealing <\/td>\n<\/tr>\n
302<\/td>\nA.2.2 Filling compounds
A.2.3 Clamping
A.2.4 Lead-in of cable
Figure A.1 \u2013 Illustration of the terms used for cable glands <\/td>\n<\/tr>\n
303<\/td>\nA.2.5 Release by a tool
A.2.6 Fixing
A.2.7 Degree of protection
A.3 Type tests
A.3.1 Tests of clamping of non-armoured and braided cables
Figure A.2 \u2013 Rounded edge of the point of entry of the flexible cable <\/td>\n<\/tr>\n
306<\/td>\nA.3.2 Tests of clamping of armoured cables <\/td>\n<\/tr>\n
307<\/td>\nA.3.3 Type test for resistance to impact <\/td>\n<\/tr>\n
308<\/td>\nA.3.4 Test for degree of protection (IP) of cable glands
Figure A.3 \u2013 Example of rig for resistance to impact test <\/td>\n<\/tr>\n
309<\/td>\nA.4 Marking
A.4.1 Marking of cable glands
A.4.2 Identification of cable-sealing rings
A.5 Instructions <\/td>\n<\/tr>\n
311<\/td>\nAnnex B (normative) Requirements for Ex Components
Table B.1 \u2013 Applicability of clauses to Ex Components <\/td>\n<\/tr>\n
314<\/td>\nAnnex C (informative) Example of rig for resistance to impact test
Figure C.1 \u2013 Example of rig for resistance to impact test <\/td>\n<\/tr>\n
315<\/td>\nAnnex D (informative) Electric machines connected to converters <\/td>\n<\/tr>\n
316<\/td>\nAnnex E (informative) Temperature evaluation of electric machines <\/td>\n<\/tr>\n
319<\/td>\nAnnex F (informative) Guidance flowchart for tests of non-metallic enclosures or non-metallic parts of enclosures (26.4)
Figure F.1 \u2013 Non-metallic enclosures or non-metallic parts of enclosures <\/td>\n<\/tr>\n
320<\/td>\nAnnex G (informative) Guidance flowchart for tests of cable glands <\/td>\n<\/tr>\n
321<\/td>\nAnnex H (informative) Shaft voltages resulting in motor bearing or shaft brush sparking Discharge energy calculation
H.1 General
H.2 Assessment of the risk of ignition using ignition energy calculation <\/td>\n<\/tr>\n
322<\/td>\nH.3 Shaft voltage determination for a rotating machine
H.4 Capacitance \u201cC\u201d calculation for a rotating machine
Table H.1 \u2013 Maximum permitted energy <\/td>\n<\/tr>\n
324<\/td>\nFigure H.1 \u2013 Capacitance stored in bearing clearance of sleeve bearing Between journal and outer bearing housing
Figure H.2 \u2013 Air-gap between stator and rotor <\/td>\n<\/tr>\n
325<\/td>\nH.5 Energy \u201cE\u201d calculation for a rotating machine
H.6 Assessment using reference curves
Figure H.3 \u2013 Typical surfaces that form capacitorsfrom the motor shaft to ground <\/td>\n<\/tr>\n
326<\/td>\nFigure H.4 \u2013 Capacitive ignition curves <\/td>\n<\/tr>\n
327<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Tracked Changes. Explosive atmospheres – Equipment. General requirements<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2019<\/td>\n331<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":239851,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-239847","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/239847","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/239851"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=239847"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=239847"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=239847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}