Bsi bs en 50525 2 21 2011

b For cables with a specified sheath thickness greater than 2,4 mm: 1 sheath either in a single layer, cross-linked elastomeric compound of type EM 2 to EN 50363-2-1; 2 or in two layers,

Ordinary duty cables – H05RR-F

The conductor shall be class 5, according to EN 60228

The sizes of cable shall be:

- 2 and 5 core – 0,75 mm 2 to 4 mm 2 ;

- 3 and 4 core – 0,75 mm 2 to 6 mm 2

The insulation shall be a cross-linked elastomeric compound, Type EI 4 to EN 50363-1, applied around each conductor

The cores shall be twisted together

NOTE 1 A centre filler may be used

NOTE 2 A tape may be applied around the core assembly before application of the sheath

The sheath shall be a cross-linked elastomeric compound of Type EM 3 to EN 50363-2-1

The sheath shall fill the spaces between the cores

The colour of sheath is not specified

NOTE If black is used, the requirement in EN 50363-2-1 for EM 3 to have a minimum level of carbon black will apply

The cable shall be marked with the CENELEC code H05RR-F The marking shall comply with Clause 6 of EN 50525-1

Each cable shall comply with the appropriate requirements given in EN 50525-1, and the particular requirements of this Part

Testing shall be in accordance with Table A.1, column 6

The dimensions of the cables shall conform to Table B.1 for the relevant size

The requirements to be met for the compatibility test shall be as given in Table C.1.

Ordinary duty cables – H05RN-F

- 2, 3 and 4 core – 0,75 mm 2 and 1 mm 2

The sheath shall be a cross-linked elastomeric compound of Type EM 2 to EN 50363-2-1

The sheath shall fill the spaces between the cores

The cable shall be marked with the CENELEC code H05RN-F The marking shall comply with Clause 6 of EN 50525-1

Heavy duty cables – H07RN-F

- Single core – 1,5 mm 2 to 630 mm 2 ;

- 2 and 5 core – 1,0 mm 2 to 95 mm 2 ;

- 3 and 4 core – 1,0 mm 2 to 300 mm 2

NOTE It is permitted to apply a tape on each core

Where the insulation is covered with a tape, it shall be applied in such a manner that it can be removed without damage to the insulation

The cores of cables having two to five cores shall be twisted together

The cores shall be covered with a sheath a) For cables with a specified sheath thickness up to and including 2,4 mm:

1) sheath in a single layer, cross-linked elastomeric compound of type EM 2 to

EN 50363-2-1 b) For cables with a specified sheath thickness greater than 2,4 mm:

1) sheath either in a single layer, cross-linked elastomeric compound of type EM 2 to

The article discusses a two-layer construction, where the inner layer consists of cross-linked elastomeric compounds of type EM 2 or EM 3, compliant with EN 50363-2-1, while the outer layer is made of cross-linked elastomeric compound type EM 2, also adhering to EN 50363-2-1 standards.

For cables with two to five cores, the sheath must fill the spaces between the cores when applied in a single layer or as the inner layer in two layers However, if a suitable tape is wrapped around the core assembly, this requirement is waived, as long as the finished cables do not contain any significant cavities in the outer interstices between the cores.

NOTE For non-electrical tests on sheaths in two layers see EN 50525-1, 5.7.2.3, c)

Heavy duty multicore cables – H07RN-F

- 6, 7, 12, 18, 24 and 36 core – 1,5 mm 2 and 2,5 mm 2 ;

The preferred number of cores for the specified conductor size is indicated, although other core counts are allowed up to the maximum limit outlined in the table, pending agreement between the purchaser and the manufacturer Refer to footnote c in Table B.3 for additional details.

The insulation shall be a cross-linked elastomeric compound, Type EI 4 to EN 50363-1 applied around each conductor

The identification of each core shall be in accordance with Annex D of EN 50525-1

Cores must be twisted together, and a single core in the center is not allowed If present, a protective conductor should be placed in the outer layer For cables with 6, 7, 18, and 36 cores, as well as for the non-preferred size of 19 cores, a center filler is required.

NOTE 1 A centre filler may be used for other sizes

The core assembly will be encased in a sheath, which can be applied as a single layer using a cross-linked elastomeric compound EM 2 compliant with EN 50363-2-1, or as a two-layer system where the inner layer consists of either cross-linked elastomeric compounds EM 2 or EM 3.

EN 50363-2-1 and the outer layer of cross-linked elastomeric compound EM 2 to

The sheath, whether a single layer or the inner layer of a two-layer sheath, must occupy the spaces between the cores However, if a suitable tape is wrapped around the core assembly, this requirement is waived, as long as the finished cables do not contain any significant cavities in the outer interstices between the cores.

The requirements to be met for the compatibility test shall be as given in Table C.1

Heavy duty cables – H07RN8-F

Where an optional separator is applied around each conductor it shall be non-hygroscopic

- 2 and 5 core – 1,0 mm 2 to 25 mm 2 ;

- 3 and 4 core – 1,0 mm 2 to 300 mm 2

Where the insulation is covered with a tape, it shall be non-hygroscopic and shall be applied in such a manner that it can be removed without damage to the insulation

NOTE 2 A non-hygroscopic tape may be applied around the core assembly before application of the sheath

The article discusses a two-layer construction, featuring an inner layer composed of cross-linked elastomeric compounds of type EM 2 or EM 3, compliant with EN 50363-2-1, and an outer layer made of cross-linked compound type EM 2, also adhering to EN 50363-2-1 standards.

For cables with two to five cores, the sheath must either be applied in a single layer or consist of an inner layer in two layers that fills the spaces between the cores However, if a non-hygroscopic tape of appropriate material is used around the core assembly, this requirement is waived, as long as the finished cables do not contain any significant cavities in the outer interstices between the cores.

The cable shall be marked with the CENELEC code H07RN8-F The marking shall comply with Clause 6 of EN 50525-1

The requirements to be met for the water resistance tests shall be as given in Annexes D and E.

Heavy duty multicore cables – H07RN8-F

Where an optional separator is applied around each conductor it shall be non-hygroscopic

- 6, 7, 12, 18, 24 and 36 core – 1,5 mm 2 and 2,5 mm 2 ;

The preferred number of cores for the conductor is specified, but other core counts are allowed up to the maximum indicated in the table, pending agreement between the purchaser and the manufacturer Refer to footnote c in Table B.3 for additional details.

The identification of each core shall be in accordance with Annex D of EN 50525-1

The centre filler shall consist of a non-hygroscopic material

NOTE 2 A non-hygroscopic tape may be applied around the core assembly before application of the sheath

The core assembly will be encased in a sheath, which can be applied as a single layer using a cross-linked elastomeric compound EM 2 compliant with EN 50363-2-1, or as a two-layer system where the inner layer consists of either cross-linked elastomeric compounds EM 2 or EM 3.

The sheath, whether a single layer or the inner layer of a two-layer sheath, must occupy the spaces between the cores However, if a non-hygroscopic tape made of appropriate material is wrapped around the core assembly, this requirement is waived, as long as the finished cables do not contain significant cavities in the outer interstices between the cores.

The cable shall be marked with the CENELEC code H07RN8-F The marking shall comply with Clause 6 of EN 50525-1

The requirements to be met for the water resistance tests shall be as given in Annexes D and E

Ordinary duty cables – H05BB-F

- 2 and 5 core – 0,75 mm 2 to 2,5 mm 2 ;

- 3 and 4 core – 0,75 mm 2 to 6 mm 2

The sheath shall be a cross-linked elastomeric compound of Type EM 6 to EN 50363-2-1 The sheath shall fill the spaces between the cores

The cable shall be marked with the CENELEC code H05BB-F The marking shall comply with Clause 6 of EN 50525-1

Heavy duty cables – H07BB-F

- 3, 4 and 5 core – 1,0 mm 2 to 300 mm 2

2) or in two layers, with both layers made of cross-linked elastomeric compound of type EM 6 to EN 50363-2-1

For cables with two to five cores, the sheath must be applied in a single layer or as an inner layer in two layers, ensuring that it fills the spaces between the cores If a suitable tape is used around the core assembly, this requirement is waived, as long as the finished cables do not contain any significant cavities in the outer interstices between the cores.

The cable shall be marked with the CENELEC code H07BB-F The marking shall comply with Clause 6 of EN 50525-1

Ordinary duty cables – H05BN4-F

- 2 and 3 core – 0,75 mm 2 and 1 mm 2

The cable shall be marked with the CENELEC code H05BN4-F The marking shall comply with Clause 6 of EN 50525-1

Heavy duty cables – H07BN4-F

- 2 and 5 core – 1,0 mm 2 to 25 mm 2 ;

- 3 and 4 core – 1,0 mm 2 to 300 mm 2

The article discusses a two-layer construction, featuring an inner layer composed of cross-linked elastomeric compounds EM 7 or EM 6, compliant with EN 50363-2-1, and an outer layer made of cross-linked elastomeric compound EM 7, also adhering to EN 50363-2-1 standards.

For cables with two to five cores, the sheath must be applied in a single layer or as an inner layer in two layers to fill the spaces between the cores If a suitable tape is used around the core assembly, this requirement is waived, as long as the finished cables do not have significant cavities in the outer interstices between the cores.

Heavy duty multicore cables – H07BN4-F

- 6, 7, 12, 18, 24 and 36 core – 1,5 mm 2 and 2,5 mm 2 ;

The preferred number of cores for the specified conductor size is indicated, although other core counts are allowed up to the maximum listed in the table, pending agreement between the purchaser and the manufacturer Refer to footnote c in Table B.3 for additional details.

The identification of each core shall be in accordance with EN 50525-1, Annex D

The core assembly will be encased in a sheath, which can be applied as a single layer using a cross-linked elastomeric compound EM 7 compliant with EN 50363-2-1, or as a two-layer system where the inner layer consists of either the cross-linked elastomeric compounds EM 7 or EM 6.

The sheath, whether in a single layer or as the inner layer of a two-layer system, must effectively fill the gaps between the cores Additionally, a tape made of appropriate material should be wrapped around the core assembly.

(see NOTE 2 to 6.5.1.4) this requirement shall not apply, provided that the finished cables shall not have any substantial cavity in the outer interstices between the cores

7 Heat resistant cables – TPU sheathed (90 °C)

Ordinary duty cables – H05BQ-F

- 2, 3, 4 and 5 core – 0,75 mm 2 and 1 mm 2

NOTE A centre filler may be used

Twisted cores must be protected by either an extruded inner covering made of a non-crosslinked rubber or plastic compound, or by a suitable separating tape that can be combined with additional fillers Alternatively, the sheath should occupy the spaces between the cores.

The sheath shall be thermoplastic polyurethane of type TMPU to EN 50363-10-2 applied around the completed assembly

The sheath shall fit closely but not adhere to the inner covering, or, where there is no separate inner covering, shall not adhere to the cores

The cable shall be marked with the CENELEC code H05BQ-F The marking shall comply with Clause 6 of EN 50525-1

NOTE Where an inner covering is used it should have an approximate thickness of 0,3 mm, but there is no requirement for this to be measured

Heavy duty cables – H07BQ-F

- 2, 3, 4 and 5 core – 1,0 mm 2 to 16 mm 2

NOTE A centre filler may be used

Twisted cores must be protected by either an extruded inner covering made of a non-crosslinked rubber or plastic compound, or by a suitable separating tape that can be used with additional fillers Alternatively, the sheath should occupy the gaps between the cores.

The sheath shall be thermoplastic polyurethane of type TMPU to EN 50363-10-2 applied around the completed assembly

The sheath shall fit closely but not adhere to the inner covering, or, where there is no separate inner covering, shall not adhere to the cores

The cable shall be marked with the CENELEC code H07BQ-F The marking shall comply with Clause 6 of EN 50525-1

NOTE Where an inner covering is used it should have an approximate thickness of 0,3 mm, but there is no requirement for this to be measured

8 Heat resistant EVA cables (110 °C) - Ordinary duty cables – H05GG-F and

Construction

A separator of suitable material shall be applied around each conductor if the conductors are plain

NOTE If the conductors are tinned the use of a separator is optional

The sizes of circular cable shall be:

- 2 and 5 core – 0,75 mm 2 to 2,5 mm 2 ;

- 3 and 4 core – 0,75 mm 2 to 6 mm 2 ;

- for flat cable the only size is 2 core, 0,75 mm 2

The cables shall be assembled as follows:

- circular cable: the cores shall be twisted together;

- flat cable: the cores shall be laid parallel

NOTE 1 A centre filler may be used for circular cables

The cable shall be marked with the CENELEC code H05GG-F for circular cables, or H05GGH2-F for flat cables The marking shall comply with Clause 6 of EN 50525-1.

Requirements

The BS EN 50525-2-21:2011 standard outlines essential tests for cables, specifically focusing on those rated for 60 °C Table A.1 details the various test categories and methods, as described in the applicable clauses of the standard These tests are crucial for ensuring the reliability and safety of electrical cables under specified conditions.

H07 RN mu lti co re

The article outlines essential electrical tests, including the resistance of conductors and various voltage tests at 2500 V and 2000 V, as specified in standards T, S 50 39 5 It emphasizes the importance of voltage testing on cores based on insulation thickness, detailing tests at 1500 V for thickness up to 0.6 mm and at 2000 V for thickness exceeding 0.6 mm Additionally, it addresses the absence of faults in insulation and the surface resistance of sheath materials The article also covers constructional and dimensional tests, ensuring compliance with construction provisions through inspections and manual tests It includes measurements of insulation and sheath thickness, as well as overall diameter, focusing on mean values and ovality.

The BS EN 50525-2-21:2011 standard outlines specifications for 60 °C cables, detailing various tests categorized under specific methods These tests are applicable as described in clauses 4.1, 4.2, 4.3, 4.4, and 5.1, ensuring compliance and safety in cable performance.

H07 RN mu lti co re

The article discusses various tests for assessing the properties of materials used in electrical applications It includes solderability tests for plain conductors, insulation material tests, and sheath material tests Additionally, it covers compatibility tests and impact tests conducted at -25 °C The mechanical strength of completed cables is evaluated through flexing tests, which are performed after immersion in water, followed by voltage tests on cores with specified insulation thicknesses up to and including 0.6 mm.

The article outlines specific testing requirements for materials, particularly focusing on insulation thickness exceeding 0.6 mm It details various tests, including fire conditions and water resistance tests, as specified in EN Annex D and E The order of testing does not imply a sequence, and particular conditions are provided in Table 1 of EN 50525-1 The material for testing is sourced from the finished cable, and certain requirements, such as resistance to ozone, do not apply to the inner layer of two-layer sheaths Additionally, these requirements are not applicable to cables with conductors greater than 16 mm², single-core cables, or multi-core cables with conductors exceeding 4 mm², nor to cables with more than two concentric layers.

BS EN 50525-2-21:2011 outlines the specifications for 90 °C and 110 °C cables, detailing various tests categorized by their applicability The standard includes a comprehensive table (Table A.2) that enumerates the tests, their methods, and relevant clauses from the standard, ensuring compliance with safety and performance requirements.

Electrical tests are crucial for ensuring the reliability and safety of conductors Resistance tests, voltage tests at 2500 V and 2000 V, and voltage tests on cores according to specified insulation thickness are essential components of this evaluation Specifically, tests at 1500 V for insulation thickness up to 0.6 mm and at 2000 V for thickness exceeding 0.6 mm are conducted Additionally, the absence of faults in insulation and surface resistance of sheath are verified Compliance with construction provisions is also checked through inspections and manual tests.

The article discusses various measurements related to insulation and sheath thickness, including overall diameter and mean values It highlights the importance of evaluating the ovality of materials and conducting solderability tests on plain conductors Additionally, it emphasizes the significance of testing insulation materials to ensure their effectiveness and reliability.

The BS EN 50525-2-21:2011 standard outlines the testing methods for 90 °C and 110 °C cables, detailing the applicability of various tests as specified in clauses 6.1 to 7 The standard includes a comprehensive table (Table A.2) that categorizes tests and their corresponding methods, ensuring compliance and safety in cable performance.

The article outlines various tests for sheath materials, including compatibility tests and impact tests at different temperatures Specifically, it details the impact test at -40 °C, -25 °C, and -5 °C, all conducted under the same test conditions Additionally, it discusses the mechanical strength of completed cables, highlighting a flexing test followed by a voltage test on cores insulated with a specified thickness of up to and including 0.6 mm at 1500 V.

The testing conditions outlined in T 50 39 6 and T 60 33 2 specify that materials must have a minimum insulation thickness exceeding 0.6 mm The order of testing does not imply a specific sequence, and detailed test conditions are provided in Table 1 of EN 50525-1 This standard encompasses all testing methods and requirements for the material, which is sourced from finished cables Notably, the resistance to ozone requirement does not apply to the inner layer of two-layer sheaths Additionally, this requirement is not applicable to cables with conductors greater than 16 mm², single-core cables, or multi-core cables with conductors exceeding 4 mm², nor to cables with more than 18 cores laid up with two concentric layers.

NOTE The overall dimensions of cables have been calculated in accordance with EN 60719

Number and nominal cross-sectional area of conductors a

Thickness of insulation Specified value

Thickness of sheath Specified value

Lower limit Upper limit mm² mm mm mm mm

5 x 4 1,0 1,4 14,6 18,6 a Not all cable types are specified in all the sizes given here See the specific clause of the standard, and also Clause 1 of EN 50525-1

Number & nominal cross sectional area of conductors a

One layer Two layers Lower limit Upper limit Inner layer Outer layer mm² mm mm mm mm mm mm

Number & nominal cross sectional area of conductors

Inner layer Outer layer mm² mm mm mm mm mm mm

5 x 300 2,6 8,8 3,5 5,3 88 111 a Not all cable types are specified in all the sizes given here See the specific clause of the standard, and also Clause 1 of EN 50525

Number & nominal cross sectional area of conductors a

Thickness insulation of Specified value

Thickness of sheath b c Specified value

Mean overall diameter Lower limit Upper limit One layer Two layers

Inner layer Outer layer mm 2 mm mm mm mm mm mm

The preferred number of cores is specified as 18 x 4, with sheath thicknesses calculated using the fictitious calculation method according to IEC 60502-1, Annex A, following the formula \( e_g = 0.11D + 1.5 \, \text{mm} \), where \( D \) represents the diameter over the laid-up cores In cases where "non-preferred" numbers are produced, the sheath thickness for one or two-layer constructions should correspond to the next highest preferred number of cores.

Number and nominal cross-sectional area of conductors

Lower limit Upper limit mm² mm mm mm mm

Cables with a 60 °C temperature rating

The sample shall be aged for seven days at (80 ± 2) °C in accordance with the designated test method

At the conclusion of the ageing period the insulation and sheath shall meet the requirements given in Table C.1 below.

Tensile strength - median, min N/mm 2 4,2 - -

Elongation at break - median, min % 200 250 -

The variation in values before and after heat treatment is significant, with a maximum allowable percentage of ± 25% for variation a and ± 30% for variation b, where variation a is calculated as a percentage difference from the initial value Notably, there is no upper limit for the positive tolerance in variation b.

At the conclusion of the ageing period the insulation and sheath shall meet the requirements given in Table C.2 below

EI 6 EI 7 EM 6 EM 7 TMPU

Tensile strength - median, min N/mm 2 5,0 5,0 7,0 - -

Elongation at break - median, min % - - 200 - 300

- variation a , max % ± 30 ± 30 - ± 40 ± 30 a The variation is the difference between the respective values obtained prior to and after heat treatment, expressed as a percentage of the former.

At the conclusion of the ageing period the insulation and sheath shall meet the requirements given in Table C.3 below

Tensile strength - median, min N/mm 2 - -

Elongation at break - median, min % - -

- variation a , max % ± 30 ± 30 a The variation is the difference between the respective values obtained prior to and after heat treatment, expressed as a percentage of the former

Water resistance test for H07RN8-F flexible cables – Electrical test

Voltage pre-test on completed cables

The test sample must include a minimum of 20 meters of the complete cable It should be submerged in potable tap water at a temperature of (20 ± 5) °C for a duration of at least one hour Following this, the a.c voltage test must be conducted in accordance with EN 50395, Clause 6.

Voltage test on completed cable at 50 °C

A 5 m sample shall be taken from the 20 m length tested in D.1 and immersed in potable tap water at

The cable will be immersed in water at a temperature of (50 ± 2) °C for 100 days During this time, a test voltage of 1 kV will be applied between one conductor in contact with the water and all other conductors connected together for multicore cables For single core cables, the test voltage will be applied between the conductor and the water If a circuit protective conductor is present, it will be the one connected to the water.

No electrical breakdown shall occur.

Insulation resistance test after pre-voltage test

Three samples of core each 5 m long shall be taken from the sample length of complete cable tested in D.1

The three samples shall be subjected to all the following tests of D.3

The three samples will be submerged in potable tap water at a temperature of (50 ± 2) °C for a minimum of 24 hours Following this, an alternating current (a.c.) test voltage of 2,500 V will be applied between each conductor and the water for a duration of 5 minutes.

No electrical breakdown shall occur

Immediately after this test the insulation resistance shall be measured in accordance with

The value of volume resistivity calculated from the formula given in EN 50395, Annex A, shall be ≥ 10 12 Ω ãcm

D.3.3 Voltage test on cores at 50 °C

The three samples examined in section D.3.2 will be submerged in potable tap water at a temperature of (50 ± 2) °C for 14 days Throughout this duration, an alternating current (a.c.) test voltage of 1,000 V will be applied between each conductor and the water.

No electrical breakdown shall occur

Immediately after this test the insulation resistance shall be measured in accordance to 8.1 of

The value of volume resistivity, calculated from the formula given in EN 50395, Annex A, shall be ≥ 10 11 Ω ã cm

Water resistance test for H07RN8-F flexible cables – Mechanical properties of sheath after water immersion

General

This test will be conducted on samples obtained from either a) the sheath applied as a single layer or b) the inner and outer layers of the sheath when applied in two layers.

Procedure

Four sets of three dumbbell samples will be taken from each layer of the cable sheath, following the guidelines of EN 60811-1-1, 9.2.3 These samples will be conditioned for seven days at a temperature of (20 ± 5) °C and a relative humidity of (50 ± 5) % After the conditioning period, one set will be weighed to 0.1 mg and then immersed in potable tap water at (50 ± 2) °C for a duration of 100 days.

After extracting surface water from potable tap water, lightly wipe the samples with filter paper Condition the samples for 16 hours at a temperature of (20 ± 5) °C and a relative humidity of (50 ± 5) %.

The samples will be re-weighed to an accuracy of 0.1 mg immediately after being taken out of the conditioning chamber For the assessment of tensile strength and elongation at break, three sets of samples will be utilized.

2) After immersion in potable tap water at (50 ± 2) °C for 28 days;

3) After immersion in potable tap water at (50 ± 2) °C for 100 days.

Requirements

The increase of mass after immersion for 100 days shall not be greater than 40 % of the mass before immersion b) Tensile strength and elongation at break

The tensile strength and elongation at break, as described in EN 60811-1-1, 9.2.7, after immersion for 100 days shall be greater than or equal to the values given in Table E.1

Table E.1 − Requirements for tensile strength and elongation at break

Parameter Units Inner layer Single layer/ outer layer

Variation between 28 days immersion and 100 days immersion:

National characteristics or practices, such as climatic conditions and electrical earthing requirements, are often immutable over time When these factors influence harmonization, they become integral to the European Standard.

For the countries in which the relevant special national conditions apply these provisions are normative, for other countries they are informative

NOTE This cable is intended for use on appliances fitted with 13 A plugs conforming to

EN 50334 Marking by inscription for the identification of cores of electric cables

EN 60719 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 60719)

HD 516 Guide to use of low voltage harmonized cables

IEC 60502-1 2004 Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to

National Annex (informative) Origins and identification of the particular cable types

As an aid to users, the table below shows, in respect of BS EN 50525-2-21:

— the identification of the particular cable types from BS 6500 and BS 7919 that are now included in

— the location of the cables within BS EN 50525-2-21;

— any applicable United Kingdom and CENELEC cable codings (see also National Informative Annex B to BS EN 50525-1).

Pre-existing BS Clause in BS EN 50525-2-21 Cable type – Coding

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Tiêu đề	Electric Cables — Low Voltage Energy Cables Of Rated Voltages Up To And Including 450/750 V (U0/U) Part 2-21: Cables For General Applications — Flexible Cables With Crosslinked Elastomeric Insulation
Trường học	British Standards Institution
Chuyên ngành	Standards Publication
Thể loại	standards publication
Năm xuất bản	2011
Thành phố	London

Định dạng
Số trang	46
Dung lượng	3,35 MB

Bsi bs en 50525 2 21 2011

Ordinary duty cables – H05RR-F

Ordinary duty cables – H05RN-F

Heavy duty cables – H07RN-F

Heavy duty multicore cables – H07RN-F

Heavy duty cables – H07RN8-F

Heavy duty multicore cables – H07RN8-F

Ordinary duty cables – H05BB-F

Heavy duty cables – H07BB-F

Ordinary duty cables – H05BN4-F

Heavy duty cables – H07BN4-F

Heavy duty multicore cables – H07BN4-F

Ordinary duty cables – H05BQ-F

Heavy duty cables – H07BQ-F

Construction

Requirements

Cables with a 60 °C temperature rating

Cables with a 90 °C temperature rating

Cables with a 110 °C temperature rating

Voltage pre-test on completed cables

Voltage test on completed cable at 50 °C

Insulation resistance test after pre-voltage test

General

Procedure

Requirements