BS EN 50525-3-31:2011
Current
The latest, up-to-date edition.
Electric cables. Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) Cables with special fire performance. Single core non-sheathed cables with halogen-free thermoplastic insulation, and low emission of smoke
Hardcopy , PDF
English
30-09-2011
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1 Scope
2 Normative references
3 Terms and definitions
4 General purpose cables
Annex A (normative) - Tests for cables to EN 50525-3-31
Annex B (normative) - General data
Bibliography
Pertains to non-sheathed single core cables insulated with halogen-free thermoplastic compound and having low emission of smoke and corrosive gases when exposed to fire.
| Committee |
GEL/20/17
|
| DevelopmentNote |
To be read in conjunction with BS EN 50525-1. Supersedes 08/30188839 DC. (10/2011)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
EN 50525-3-31 applies to non-sheathed single core cables insulated with halogen-free thermoplastic compound and having low emission of smoke and corrosive gases when exposed to fire.
NOTE 1 Low emission of smoke is checked in accordance with EN 61034-2. Low emission of corrosive gases is checked as part of the check for absence of halogens (see Annex B of EN 50525-1).
The cables are of rated voltages U0/U up to and including 450/750 V.
NOTE 2 Cables rated 450/750 V may be used at 600/1 000 V when this cable is used in fixed installations with mechanical protection, within switchgear and control gear - see HD 516.
For cables rated at 450/750 V there are two types, Type 1 and Type 2. Type 2 cables are required to meet a more severe test for resistance to flame propagation (EN 60332-3-24) than Type 1, and have particular suitability for installation in bunches (see also HD 516).
The cables are intended for fixed wiring applications.
The maximum conductor operating temperature for each of the cables in this standard is 70 °C.
NOTE 3 HD 516 contains extensive guidance on the safe use of cables in this standard.
This EN 50525-3-31 should be read in conjunction with EN 50525-1, which specifies general requirements.
| Standards | Relationship |
| EN 50525-3-31:2011 | Identical |
| EN 60719:1993 | Calculation of the lower and upper limits for the average outer dimensions of cables with circular copper conductors and of rated voltages up to and including 450/750 V |
| IEC 60228:2004 | Conductors of insulated cables |
| EN 60228:2005 COR 2005 | CONDUCTORS OF INSULATED CABLES |
| EN 60332-1-2:2004/A11:2016 | TESTS ON ELECTRIC AND OPTICAL FIBRE CABLES UNDER FIRE CONDITIONS - PART 1-2: TEST FOR VERTICAL FLAME PROPAGATION FOR A SINGLE INSULATED WIRE OR CABLE - PROCEDURE FOR 1 KW PRE-MIXED FLAME (IEC 60332-1-2:2004/A1:2015) |
| IEC 60332-3-24:2000+AMD1:2008 CSV | Tests on electric and optical fibre cables under fire conditions - Part 3-24: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category C |
| IEC 60332-1-2:2004+AMD1:2015 CSV | Tests on electric and optical fibre cables under fire conditions - Part 1-2: Test for vertical flame propagation for a single insulatedwire or cable - Procedure for 1 kW pre-mixed flame |
| IEC 60719:1992 | Calculation of the lower and upper limits for the average outer dimensions of cables with circular copper conductors and of rated voltages up to and including 450/750 V |
| EN 50525-1:2011 | Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 1: General requirements |
| EN 61034-2:2005/A1:2013 | MEASUREMENT OF SMOKE DENSITY OF CABLES BURNING UNDER DEFINED CONDITIONS - PART 2: TEST PROCEDURE AND REQUIREMENTS (IEC 61034-2:2005/A1:2013) |
| HD 516 S2:1997/A2:2008 | GUIDE TO USE OF LOW VOLTAGE HARMONIZED CABLES |
| EN 50395 : 2005 AMD 1 2011 | ELECTRICAL TEST METHODS FOR LOW VOLTAGE ENERGY CABLES |
| EN 60332-3-24:2009 | TESTS ON ELECTRIC AND OPTICAL FIBRE CABLES UNDER FIRE CONDITIONS - PART 3-24: TEST FOR VERTICAL FLAME SPREAD OF VERTICALLY-MOUNTED BUNCHED WIRES OR CABLES - CATEGORY C |
| IEC 60811-1-4:1985 | Common test methods for insulating and sheathing materials of electric cables - Part 1: Methods for general application - Section Four: Tests at low temperature |
| IEC 61034-2:2005+AMD1:2013 CSV | Measurement of smoke density of cables burning under definedconditions - Part 2: Test procedure and requirements |
| EN 50396 : 2005 AMD 1 2011 | NON ELECTRICAL TEST METHODS FOR LOW VOLTAGE ENERGY CABLES |
| EN 50363-7:2005 | Insulating, sheathing and covering materials for low voltage energy cables - Part 7: Halogen-free, thermoplastic insulating compounds |
| EN 60811-1-4:1995/A2:2001 | INSULATING AND SHEATHING MATERIALS OF ELECTRIC CABLES - COMMON TEST METHODS - PART 1-4: GENERAL APPLICATION - TESTS AT LOW TEMPERATURE |
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