{"id":239822,"date":"2024-10-19T15:41:27","date_gmt":"2024-10-19T15:41:27","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-60079-142014-tc\/"},"modified":"2024-10-25T10:24:18","modified_gmt":"2024-10-25T10:24:18","slug":"bs-en-60079-142014-tc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-60079-142014-tc\/","title":{"rendered":"BS EN 60079-14:2014 – TC"},"content":{"rendered":"

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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
3<\/td>\nBS EN 60079-14:2014 to BS EN 60079-14:2008 <\/td>\n<\/tr>\n
17<\/td>\nBS EN 60079-14:20082014 BRITISH STANDARD <\/td>\n<\/tr>\n
18<\/td>\nAtmosph\u00e8res explosives –
Central Secretariat: rue de Stassart 35CEN-CENELEC Management Centre: Avenue Marnix 17, B – 10500 Brussels <\/td>\n<\/tr>\n
19<\/td>\nForeword <\/td>\n<\/tr>\n
21<\/td>\nEndorsement notice <\/td>\n<\/tr>\n
23<\/td>\nAnnex ZA
(normative) <\/td>\n<\/tr>\n
27<\/td>\nBS EN 60079-14:2008 \u2013 6 \u2013
EN 60079-14:2008 (E)
Annex ZB
(informative) <\/td>\n<\/tr>\n
28<\/td>\nCONTENTS <\/td>\n<\/tr>\n
38<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
41<\/td>\nEXPLOSIVE ATMOSPHERES \u2013
1 Scope <\/td>\n<\/tr>\n
42<\/td>\n2 Normative references <\/td>\n<\/tr>\n
45<\/td>\n3 Terms and definitions
3.1 General
3.1.2
3.1.3
3.2 Hazardous areas
3.2.2
3.2.3
3.2.4
3.2.45 <\/td>\n<\/tr>\n
46<\/td>\n3.2.56
3.2.67
3.2.78
3.2.89
3.2.910
3.2.1011
3.2.1112
3.3 Flameproof enclosure
3.3.1
3.3.2
3.4 Increased safety
3.4.1 <\/td>\n<\/tr>\n
47<\/td>\n3.4.2
3.4.3
3.4.4
3.5 Intrinsic safety \u2013 General
3.5.1
3.5.2
3.5.23
3.5.34
3.5.45 <\/td>\n<\/tr>\n
48<\/td>\n3.5.56
3.5.67
3.5.78
intrinsically safe sub-circuit
3.6 Intrinsic safety parameters 3.6.1
3.7 Pressurization
3.7.1
3.7.2
3.7.3
3.7.4 <\/td>\n<\/tr>\n
49<\/td>\n3.8 Type of protection \u201cn\u201d 3.8.1
3.8.2
3.8.3
associated energy-limited apparatus
3.9
oil-immersion \u201co\u201d
3.10
powder filling \u201cq\u201d
3.11
encapsulation \u201cm\u201d
3.12
dust ignition protection type \u2018tD\u2019by enclosure \u201ct\u201d
3.13 Electrical supply systems
3.13.1 <\/td>\n<\/tr>\n
50<\/td>\n3.13.2
3.14 Equipment
3.14.2
3.14.3
3.14.4
3.15 radio frequency identification RFID
4 General
4.1 General requirements <\/td>\n<\/tr>\n
51<\/td>\n4.2 Documentation <\/td>\n<\/tr>\n
52<\/td>\n4.3 Initial inspection <\/td>\n<\/tr>\n
53<\/td>\n4.34 Assurance of conformity of equipment
4.34.1 Equipment with certificates according to IEC standards
4.4.1.2 IEC standards
4.34.4.2 Equipment without certificates according to IEC standards
4.34.3 Selection of repaired, second hand or existing equipment <\/td>\n<\/tr>\n
54<\/td>\n4.45 Qualifications of personnel
5 Selection of equipment (excluding cables and conduits)
5.1 Information requirements
5.2 Zones
5.3 Relationship between Eequipment protection levels (EPLs) and zones
Table 1 \u2013 Equipment protection levels (EPLs) where only zones are assigned <\/td>\n<\/tr>\n
55<\/td>\n5.4 Selection of equipment according to EPLs
5.4.1 General
5.4.12 Relationship between EPLs and types of protection
Table 2 \u2013 RelationshipDefault relationship between types of protection and EPLs <\/td>\n<\/tr>\n
56<\/td>\n5.4.23 Equipment for use in locations requiring EPL \u201cGa\u201d or \u201cDa\u201d
5.4.34 Equipment for use in locations requiring EPL \u201cGb\u201d or \u201cDb\u201d
5.4.45 Equipment for use in locations requiring EPL \u201cGc\u201d or \u201cDc\u201d <\/td>\n<\/tr>\n
57<\/td>\n5.5 Selection according to equipment grouping
Table 3 \u2013 Relationship between gas\/vapour or dust subdivision and equipment group
5.6 Selection according to the ignition temperature of the gas, vapour or dust and ambient temperature
5.6.1 General
5.6.2 Gas or vapour
Table 4 \u2013 Relationship between gas or vapour <\/td>\n<\/tr>\n
58<\/td>\n5.6.3 Dust
5.6.3.12 Temperature limitations because of the presence of dust clouds
5.6.3.23 Temperature limitation because of presence of dust layers <\/td>\n<\/tr>\n
59<\/td>\nFigure 1 \u2013 Correlation between the maximum permissible surface temperature and depth of dust layers
5.6.3.2.2 Enclosures for practice B only apparatus for dust layers up to 12,5 mm thickness
5.6.3.34 Unavoidable dust layers <\/td>\n<\/tr>\n
60<\/td>\n5.6.3.4 Maximum permissible surface temperature
5.7 Selection of radiating equipment for dust
5.7.1 General
5.7.12 Ignition process <\/td>\n<\/tr>\n
61<\/td>\n5.7.2 Safety measures in zone 20 or 21
5.7.3 Safety measures in zone 22
5.8 Selection of ultrasonic equipment for dust
5.8.1 General
5.8.12 Ignition process
5.8.2 Safety measures
5.8.2.1 Safety measures in zone 20 or 21 <\/td>\n<\/tr>\n
62<\/td>\n5.8.2.2 Safety measures in zone 22
5.9 External Selection to cover external influences <\/td>\n<\/tr>\n
63<\/td>\n5.1110 Selection of transportableTransportable, portable and personal equipment
5.1110.1 General <\/td>\n<\/tr>\n
64<\/td>\n5.1110.2 Transportable and portable equipment-Gas
5.1110.3 Personal Equipment-Gasequipment
5.11.4 Dust
5.1211 Selection of rotating Rotating electrical machines
5.12.1 General
Rotating electrical machines are classified in accordance with IEC 60034-1 for duty cycles S1 to S10.
5.1211.1 General <\/td>\n<\/tr>\n
65<\/td>\n5.11.2 Environmental Factors for \u201cEx\u201d machine installation
5.11.3 Power and accessory connections, grounding <\/td>\n<\/tr>\n
66<\/td>\n5.12.211.4 Motors fed from a converter supply
5.11.5 Switching motors above 1kV
5.11.5.2 Overvoltages resulting from switching operations <\/td>\n<\/tr>\n
67<\/td>\n5.1312 Luminaires
5.1413 Plugs and socket outlets for dust
5.13.1 General
5.14.1 General
5.14.13.2 MountingSpecific requirements for explosive dust atmospheres
5.1413.3 Location
5.14 Cells and batteries
5.14.1 Charging of secondary cells and batteries <\/td>\n<\/tr>\n
68<\/td>\n5.14.2 Ventilation
5.15 RFID tags
5.15.1 General
5.15.2 Passive RFID tags
5.15.3 Mounting RFID tags
5.16 Gas detection equipment <\/td>\n<\/tr>\n
69<\/td>\n6 Protection from dangerous (incendive) sparking
5.106.1 Light metals as construction materials
5.10.1 Gas or vapour
5.10.2 Dust
6.12 Danger from live parts
6.23 Danger from exposed and extraneous conductive parts
6.3.1 General <\/td>\n<\/tr>\n
70<\/td>\n6.3.2.1 TN type of system earthing
6.2.23.3 TT type of system earthing
6.2.3.4 IT type of system earthing
6.2.43.5 SELV and PELV systems
6.2.53.6 Electrical separation
6.2.6.3.7 Above Non Ex electrical equipment above hazardous areas <\/td>\n<\/tr>\n
71<\/td>\n6.34 Potential equalization
6.34.1 General <\/td>\n<\/tr>\n
72<\/td>\n6.34.2 Temporary bonding
6.3.2.1 Gas
6.3.2.2 Dust
6.45 Static electricity
6.4.1 Gas
The risk of incendive sparking from non-metallic installation materials (e.g. plastic covered cable trays, plastic mounting plates, plastic weather protection) shall be controlled by:
6.5.1 General <\/td>\n<\/tr>\n
73<\/td>\n6.5.2 Avoidance of a build-up of electrostatic charge on construction and protecting parts for locations requiring EPL \u201cGa\u201d, \u201cGb\u201d and \u201cGc\u201d
Table 5 \u2013 Limitation of surface areas <\/td>\n<\/tr>\n
74<\/td>\n6.4.25.3 Dust Avoidance of a build-up of electrostatic charge on construction and protecting parts for locations requiring EPL \u201cDa\u201d, \u201cDb\u201d and \u201cDc\u201d <\/td>\n<\/tr>\n
75<\/td>\n6.56 Lightning protection
6.67 Electromagnetic radiation
6.7.1 General
6.7.2 Radio frequency received in hazardous areas
Table 8 \u2013 Radio frequency power thresholds
Table 9 \u2013 Radio-frequency energy thresholds <\/td>\n<\/tr>\n
76<\/td>\n6.78 Cathodically protected metallic parts
6.89 Ignition by optical radiation
7 Electrical protection
7.1 General
7.3 Transformers <\/td>\n<\/tr>\n
77<\/td>\n8 Emergency switchSwitch-off and electrical isolation
8.1 General
8.12 Emergency switchSwitch-off
8.23 Electrical isolation
9 WiringCables and wiring systems
9.1 General
9.2 Aluminium conductors <\/td>\n<\/tr>\n
78<\/td>\n9.3 Cables
9.3.1 General
9.3.12 Cables for fixed wiringinstallations
9.3.43 Flexible cables for fixed installations (excluding intrinsically safe circuits) <\/td>\n<\/tr>\n
79<\/td>\n9.3.3 Flexible connections for dust
9.3.24 CablesFlexible cables supplying transportable and portable equipment (excluding intrinsically safe circuits)
9.3.5 Non-sheathed single coresSingle insulated wires (excluding intrinsically safe circuits)
9.3.6 Overhead lines
9.3.7 Avoidance of damage <\/td>\n<\/tr>\n
80<\/td>\n9.3.8 Cable surface temperature
9.3.9 FlameResistance to flame propagation
9.4 Conduit systems <\/td>\n<\/tr>\n
81<\/td>\nIn addition, national or other standards should be followed for conduit systems.
9.5 Cable and conduit systemsAdditional requirements
9.5.1 EPL ‘Ga’
9.5.2 EPL ‘Da’
9.5.3 Cable and conduit systems for EPL \u2018Gb\u2019, \u2018Gc\u2019, \u2018Db\u2019 and \u2018\u00b4Dc\u2019 <\/td>\n<\/tr>\n
82<\/td>\n9.6 Installation requirements
9.6.1 Circuits traversing a hazardous area
9.6.2 Protection of stranded endsTerminations
9.6.3 Unused cores
9.6.4 Unused openings
9.6.5 Fortuitous contact
9.6.6 Jointing <\/td>\n<\/tr>\n
83<\/td>\n9.6.74 Openings in walls
9.6.85 Passage and collection of flammables
9.6.9 Static build-up for dust
9.6.106 Accumulation of combustible dust
10 Cable entry systems and blanking elements
9.3.10 Connections of cables to equipment
10.1 General
10.2 Selection of cable glands <\/td>\n<\/tr>\n
84<\/td>\nTable 10 \u2212 Selection of glands, adapters and blanking elements type of protection according to the enclosure type of protection
10.3 Connections of cables to equipment <\/td>\n<\/tr>\n
85<\/td>\n10.4 Additional requirements for entries other than Ex \u201cd\u201d, Ex \u201ct\u201d or Ex \u201cnR\u201d
10.5 Unused openings
10.6 Additional requirements for type of protection \u201cd\u201d \u2013 Flameproof enclosures
10.6.1 General <\/td>\n<\/tr>\n
86<\/td>\n10.6.2 Selection of cable glands
10.7 Additional requirements for type of protection \u201ct\u201d \u2013 Protection by enclosure <\/td>\n<\/tr>\n
87<\/td>\nTable 11 \u2013 Level of protection, equipment group and ingress protection relationship
14.3.2.210.8 Cable glands for \u2018nR\u2019 equipmentAdditional requirements for type of protection \u201cnR\u201d \u2013 Restricted breathing enclosure
7.211 Rotating electrical machines
11.1 General
10.611.2 Motors with type of protection \u201cd\u201d \u2013 Flameproof enclosures
10.6.111.2.1 Motors with a converter supply <\/td>\n<\/tr>\n
88<\/td>\n10.6.211.2.2 Reduced-voltage starting (soft starting)
11.3 Cage induction motorsMotors with type of protection \u201ce\u201d \u2013 Increased safety
11.3.1 Mains-operated <\/td>\n<\/tr>\n
89<\/td>\n11.3.2 Winding temperature sensors
11.3.3 Machines with rated voltage greater than 1 kV <\/td>\n<\/tr>\n
90<\/td>\n11.3.4 Motors with converter supply
11.3.5 Reduced-voltage starting (soft starting)
13.211.4 Motors with type of protection \u201cp\u201d and \u201cpD\u201d \u2013 Pressurized enclosures
13.2.111.4.1 Motors with a converter supply
13.2.211.4.2 Reduced-voltage starting (soft starting) <\/td>\n<\/tr>\n
91<\/td>\n11.5 Motors with type of protection \u201ct\u201d \u2013 Protection by enclosures supplied at varying frequency and voltage
11.5.1 Motors with a converter supply
11.5.2 Reduced-voltage starting (soft starting)
14.411.6 Motors with type of protection \u201cnA\u201d \u2013 Non-sparking
14.4.211.6.1 Motors with converter supply <\/td>\n<\/tr>\n
92<\/td>\n14.4.311.6.2 Reduced-voltage starting (soft starting)
14.4.111.6.3 Machines with rated voltage greater than 1 kV
11.412 Luminaires
7.413 Resistance Electric heating devicessystems
13.1 General <\/td>\n<\/tr>\n
93<\/td>\n13.2 Temperature monitoring
Table 12 \u2013 Requirements for the temperature monitoring systems
13.3 Limiting temperature <\/td>\n<\/tr>\n
94<\/td>\n13.4 Safety device <\/td>\n<\/tr>\n
95<\/td>\n13.5 Electrical trace heating systems
1014 Additional requirements for type of protection \u201cd\u201d \u2013 Flameproof enclosures
1014.1 General
1014.2 Solid obstacles
Untitled <\/td>\n<\/tr>\n
96<\/td>\nTable 613 \u2013 Minimum distance of obstruction from the flameproof flange joints related to the gas group of the hazardous area
1014.3 Protection of flameproof joints <\/td>\n<\/tr>\n
97<\/td>\n10.4 Cable entry systems
10.4.1 General
10.4.2 Selection of cable glands <\/td>\n<\/tr>\n
98<\/td>\n10.514.4 Conduit systems
11.1 Degree of ingress protection of enclosures (IEC 60034-5 and IEC 60529)
11.2 Wiring systems
11.2.1 General <\/td>\n<\/tr>\n
99<\/td>\n11.2.2 Cable glands
11.2.3 Conductor terminations
15.1 General
Only Ex \u201ce\u201d equipment having a complete certificate shall be installed.
11.2.4 Combinations of terminals and conductors for general connection and junction boxes
15.2 Maximum dissipated power of terminal box enclosures <\/td>\n<\/tr>\n
100<\/td>\n15.3 Conductor terminations
15.4 Maximum number of conductors in relation to the cross-section and the permissible continuous current <\/td>\n<\/tr>\n
101<\/td>\nTable 14 \u2013 Example of defined terminal\/conductor arrangement \u2013 Maximum number of wires in relation to the cross-section and the permissible continuous current <\/td>\n<\/tr>\n
102<\/td>\n1216.1 Introductory remarkGeneral
1216.2 Installations to meet the requirements of EPL \u201cGb\u201d or \u201cGc\u201d and \u201cDb\u201d or \u201cDc\u201d
1216.2.1 Equipment <\/td>\n<\/tr>\n
103<\/td>\n126.2.2 Cables
1216.2.2.2 Electrical parameters of cables
1216.2.2.3 Earthing of conducting screens <\/td>\n<\/tr>\n
104<\/td>\nFigure 32 \u2013 Earthing of conducting screens <\/td>\n<\/tr>\n
105<\/td>\n1216.2.2.5 Installation of cables and wiring
1216.2.2.5.2 Conductors
1216.2.2.5.3 Unused cores in multi-core cables
1216.2.2.6 Marking of cables <\/td>\n<\/tr>\n
106<\/td>\n1216.2.2.7 Multi-core cables containingCables carrying more than one intrinsically safe circuit
1216.2.2.8 FaultTypes of cables carrying more than one intrinsically safe circuit and applicable fault considerations in multi-core cables <\/td>\n<\/tr>\n
107<\/td>\n12.2.3 Termination of intrinsically safe circuits
NOTE Where a connector carries earthed circuits and the type of protection depends on the earth connection, then the connector should be constructed in accordance with the requirements given in IEC 60079-11 relating to earth conductors, connections an…
12.2.416.2.3 Earthing of intrinsically safe circuits <\/td>\n<\/tr>\n
108<\/td>\n1216.2.54 Verification of intrinsically safe circuits <\/td>\n<\/tr>\n
109<\/td>\nNOTE A possible format for descriptive systems drawings and installation drawings can be found in IEC 60079- 25.
Where a circuit contains significant amounts of energy stored in both capacitance and inductance the capacitive stored energy may reinforce the effect of the power source feeding the inductor. The distributed inductance and capacitance of cables is kn… <\/td>\n<\/tr>\n
110<\/td>\nIn addition, components with a surface area smaller than 1 000 mm2 (excluding lead wires) may be classified as T5 if their surface temperature does not exceed 150 C.
NOTE 2 All connected apparatus includes any simple apparatus which may not have values for Li and Ci listed by the manufacturer. The source of power could be associated apparatus or other intrinsically safe apparatus.
Table 7 \u2013 Assessment for T4 classification according to component size and ambient temperature
Guidance on the determination of cable parameters is given in 16.2.2.2.
16.2.4.4 Intrinsically safe circuits with more than one associated apparatus <\/td>\n<\/tr>\n
111<\/td>\n1216.3 Installations to meet the requirements of EPL \u201cGa\u201d or \u201cDa\u201d <\/td>\n<\/tr>\n
112<\/td>\n16.4 Simple apparatus <\/td>\n<\/tr>\n
113<\/td>\nTable 15 \u2013 Variation in maximum power dissipation with ambient temperature for Equipment Group II
16.5 Terminal boxes
16.5.1 General
16.5.2 Terminal boxes with only one intrinsically safe circuit <\/td>\n<\/tr>\n
114<\/td>\n16.5.3 Terminal boxes with more than one intrinsically safe circuit
16.5.4 Terminal boxes with non-intrinsically safe and intrinsically safe circuits
16.5.5 Plugs and sockets used for external connections <\/td>\n<\/tr>\n
115<\/td>\n12.416.6 Special applications
137 Additional requirements for pressurized enclosures
17.1 General
13.117.2 Type of protection \u201cp\u201d
13.117.2.1 General
Table 816 \u2013 Determination of type of protection (with no flammable release within the enclosure)
13.117.2.2 Ducting <\/td>\n<\/tr>\n
116<\/td>\nTable 917 \u2013 Use of spark and particle barriers
13.117.2.3 Action to be taken on failure of pressurization <\/td>\n<\/tr>\n
117<\/td>\n13.117.2.3.2 Equipment without an internal source of release
Table 1018 \u2013 Action to be taken when the pressurization with the protective gas fails Summary of protection requirements for electrical equipmentenclosures without an internal source of release
17.2.3.2.2 Automatic switch-off
17.2.3.2.3 Alarm <\/td>\n<\/tr>\n
118<\/td>\n13.117.2.3.3 Equipment with an internal source of release
13.117.2.4 Multiple pressurized enclosures with a common safety device <\/td>\n<\/tr>\n
119<\/td>\n13.117.2.5 Purging
13.117.2.6 Protective gas
1317.3 Type of protection \u201cpD\u201d
1317.3.1 Sources of protective gas <\/td>\n<\/tr>\n
120<\/td>\nTable 1119 \u2013 Summary of protection requirements for enclosures
1317.3.2 Automatic switch-off
1317.3.3 Alarm
1317.3.4 Common source of protective gas
137.3.5 Switching on electrical supply <\/td>\n<\/tr>\n
121<\/td>\n13.3.6 Motors with a converter supply
1317.4 Rooms for explosive gas atmosphere
13.4.1 Pressurized rooms and analyser houses
13.4.1.17.4.2 Analyser houses <\/td>\n<\/tr>\n
122<\/td>\n1418 Additional requirements for type of protection \u201cn\u201d
1418.1 General
18.2 \u201cnR\u201d equipment
18.3 Combinations of terminals and conductors for general connection and junction boxes <\/td>\n<\/tr>\n
123<\/td>\n14.2 Degree of ingress protection of enclosures (IEC 60034-5 and IEC 60529)
14.3 Wiring systems
14.3.1 General
14.3.2 Cable glands <\/td>\n<\/tr>\n
124<\/td>\n14.3.318.4 Conductor terminations
1519 Additional requirements for type of protection \u201co\u201d\u2013 Oil immersion
19.1 General
19.2External connections
1620 Additional requirements for type of protection \u201cq\u201d \u2013 Powder filling <\/td>\n<\/tr>\n
125<\/td>\n1721 Additional requirements for type of protection \u201cm\u201d \u2013 Encapsulation
22 Additional requirements for type of protection\u201cop\u201d \u2013 Optical radiation
1823 Additional requirements for type of protection \u2018tD\u2019\u201ct\u201d \u2013 Protection by enclosure
18.1 Practices A and B
18.2 Practice A
Table 12 \u2013 Dust tightness practice A
18.3 Practice B <\/td>\n<\/tr>\n
126<\/td>\nTable 13 \u2013 Dust tightness practice B
18.4 Motors supplied at varying frequency and voltages <\/td>\n<\/tr>\n
127<\/td>\nAnnex FA
(normative)
FA.1 Scope
FA.2 Knowledge and skills
FA.2.1 Responsible persons
FA.2.2 Operatives\/technicians (selection and erection)
FA.2.3 Designers (design and selection) <\/td>\n<\/tr>\n
128<\/td>\nFA.3 Competencies
FA.3.1 General
FA.3.2 Responsible persons
FA.3.3 Operatives\/technicians
FA.3.4 Designers
FA.4 Assessment <\/td>\n<\/tr>\n
129<\/td>\nAnnex DB
(informative) <\/td>\n<\/tr>\n
130<\/td>\nAnnex C
(normative)
Table C.1 \u2013 Inspection schedule for Ex \u201cd\u201d, Ex \u201ce\u201d, Ex \u201cn\u201d and Ex \u201ct\u201d <\/td>\n<\/tr>\n
132<\/td>\nTable C.2 \u2013 Initial inspection schedule for Ex \u201cI\u201d installations <\/td>\n<\/tr>\n
135<\/td>\nD.1 General
D.2 Cables
D.3 Electrical trace heating systems
D.4 Lighting systems
D.4.1 General
D.4.2 Emergency lights
D.5 Electrical rotating machines <\/td>\n<\/tr>\n
136<\/td>\nAnnex E
(informative)
E.1 Test procedure <\/td>\n<\/tr>\n
137<\/td>\nAnnex F
(informative)
F.1 General
F.2 Definitions
F.2.1 Electrical trace heating system
F.2.2 System components
F.2.3 Site-fabricated trace heaters <\/td>\n<\/tr>\n
138<\/td>\nF.2.4 Location of sensors
F.2.5 Thermal insulation
F.2.6 Personnel aspects
F.3 General requirements <\/td>\n<\/tr>\n
139<\/td>\nF.4 Requirements for EPL \u201cGb\u201d, \u201cGc\u201d, \u201cDb\u201d and \u201cDc\u201d
F.4.1 General
F.4.2 Stabilized design
F.4.2.2 PTC characteristic
F.4.2.3 Fixed condition
F.4.3 Controlled design <\/td>\n<\/tr>\n
140<\/td>\nF.5 Design information
F.5.1 Design information drawings and documents
F.5.2 Isometric or heater configuration line lists and load charts <\/td>\n<\/tr>\n
141<\/td>\nF.6 Incoming inspections
F.6.1 Receiving materials <\/td>\n<\/tr>\n
142<\/td>\nF.6.2 Pre-installation testing
F.6.3 Visual examination
F.6.4 Insulation resistance test
F.6.5 Component substitution
F.6.6 Location of power supply <\/td>\n<\/tr>\n
143<\/td>\nTable F.1 \u2013 Pre-installation checks
F.7 Installation of trace heaters
F.7.1 General <\/td>\n<\/tr>\n
144<\/td>\nF.7.2 Connections and terminations
F.7.2.2 Connection kits
F.7.2.3 Junction boxes
F.7.2.4 Cold leads
F.7.2.5 Trace heater entries and glands <\/td>\n<\/tr>\n
145<\/td>\nF.7.2.6 Jointing, splicing and modifications
F.7.2.7 End terminations
F.7.3 Conductor terminations
F.8 Installation of control and monitoring equipment
F.8.1 Verification of equipment suitability
F.8.2 Sensor considerations <\/td>\n<\/tr>\n
146<\/td>\nF.8.2.2 Sensor installation for temperature controller
F.8.2.3 Sensor installation for temperature limiting device <\/td>\n<\/tr>\n
147<\/td>\nFigure F.1 \u2013 Typical installation of control sensor and sensor for temperature limiting control <\/td>\n<\/tr>\n
148<\/td>\nFigure F.2 \u2013 Limiting device sensor on sheath of trace heater <\/td>\n<\/tr>\n
149<\/td>\nFigure F.3 \u2013 Limiting device sensor as artificial hot spot
F.8.3 Controller operation, calibration, and access <\/td>\n<\/tr>\n
150<\/td>\nF.9 Installation of thermal insulation system
F.9.1 General
F.9.2 Preparatory work
F.10 Installation of distribution wiring and coordination with branch circuits
F.10.1 General
F.10.2 Tagging\/identification
F.11 Final installation review
F.11.1 Necessary modifications <\/td>\n<\/tr>\n
151<\/td>\nF.11.2 Field (site work) circuit insulation resistance test
F.11.3 Visual inspection
F.12 Commissioning
F.12.1 Pre-commissioning check
F.12.2 Functional check and final documentation
F.12.2.2 Functional check <\/td>\n<\/tr>\n
152<\/td>\nF.12.2.3 Final documentation <\/td>\n<\/tr>\n
153<\/td>\nTable F.2 \u2013 Electrical trace heating systems installation record \u2013 Example <\/td>\n<\/tr>\n
155<\/td>\nAnnex AH
associated apparatus with linear current\/voltage characteristics
AH.1 General
AH.2 Intrinsic safety with level of protection \u201cib\u201d
AH.3 Intrinsic safety with level of protection \u201cic\u201d <\/td>\n<\/tr>\n
156<\/td>\nAnnex BI
BI.1 Intrinsically safe circuits with linear current\/voltage characteristics <\/td>\n<\/tr>\n
157<\/td>\nFigure BI.1 \u2013 Series connection \u2013 Summation of voltage
Figure BI.2 \u2013 Parallel connection \u2013 Summation of currents <\/td>\n<\/tr>\n
158<\/td>\nFigure BI.3 \u2013 Series and parallel connections \u2013 Summations of voltages and summations of currents
I.2 Intrinsically safe circuits with non-linear current\/voltage characteristics <\/td>\n<\/tr>\n
159<\/td>\nAnnex CJ
(informative)
CJ.1 Measurements
C.2 Multi-core cables
J.2 Cables carrying more than one intrinsically safe circuit
J.2.1 General
CJ.2.12 Type A multi-core cables <\/td>\n<\/tr>\n
160<\/td>\nCJ.2.23 Type B multi-core cables
CJ.2.34 Other multi-coreType C cables
CJ.3 FISCO <\/td>\n<\/tr>\n
161<\/td>\n(normative)
K.1 General
K.2 Inherently safe optical radiation \u201cop is\u201d
K.2.1 General
K.2.2 Change of cross sections
K.2.3 Coupler
K.3 Protected optical radiation \u201cop pr\u201d
K.3.1 General <\/td>\n<\/tr>\n
162<\/td>\nK.3.2 Radiation inside enclosures
K.4 Optical radiation interlocked with optical breakage \u201cop sh\u201d <\/td>\n<\/tr>\n
163<\/td>\nAnnex GL
(informative)
Figure GL.1 \u2013 Examples for dust layers of excessive thickness with the requirement of laboratory investigation <\/td>\n<\/tr>\n
164<\/td>\nM.1 General
M.2 Concentration limits
M.3 Energy\/temperature limits
M.4 Selection of equipment
M.5 Use of flameproof equipment
M.6 Electrostatic hazard
M.7 Installation requirements <\/td>\n<\/tr>\n
165<\/td>\nH.3 Portable and transportable equipment
H.4 Fans <\/td>\n<\/tr>\n
166<\/td>\nAnnex I
I.1 Introduction
I.2 Historical background <\/td>\n<\/tr>\n
167<\/td>\nI.3 General
I.3.1 Mines susceptible to firedamp (Group I)
I.3.1.2 EPL Mb
I.3.2 Gases (Group II)
I.3.2.2 EPL Gb
I.3.2.3 EPL Gc
I.3.3 Dusts (Group III) <\/td>\n<\/tr>\n
168<\/td>\nI.3.3.2 EPL Db
I.3.3.3 EPL Dc
Table I.1 \u2013 Traditional relationship of EPLs to zones (no additional risk assessment) <\/td>\n<\/tr>\n
169<\/td>\nTable I.2 \u2013 Description of risk of ignition protection provided <\/td>\n<\/tr>\n
171<\/td>\nBibliography <\/td>\n<\/tr>\n
173<\/td>\nNational Annex NA
Selection of cable glands for flameproof enclosures
NA.1 Introduction
NA.2 Background <\/td>\n<\/tr>\n
175<\/td>\nNA.3 IEC 60079-14:2013 (Edition 5)
NA.4 UK committee concerns
NA.5 Recommendation by the UK committee for users of this standard and notice of future intent <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Tracked Changes. Explosive atmospheres – Electrical installations design, selection and erection<\/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>\n321<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":239830,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[551,2641],"product_tag":[],"class_list":{"0":"post-239822","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-260-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/239822","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\/239830"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=239822"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=239822"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=239822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}