BS 7629-1:2015+A1:2019 – TC:2020 Edition
$217.84
Electric cables. Specification for 300/500 V fire resistant, screened, fixed installation cables having low emission of smoke and corrosive gases when affected by fire – Multicore cables
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 72 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | compares BS 7629-1:2015+A1:2019 |
| 2 | TRACKED CHANGES Text example 1 — indicates added text (in green) |
| 5 | Summary of pages |
| 6 | Foreword Publishing information Supersession Relationship with other publications Information about this document |
| 7 | Use of this document Presentational conventions Contractual and legal considerations Compliance with a British Standard cannot confer immunity from legal obligations. |
| 8 | 2 Normative references |
| 9 | 3 Terms and definitions 3.1 cable manufacturer 3.2 fire resistance 3.3 length of lay 3.4 routine tests, R 3.5 sample tests, S |
| 10 | 3.6 type tests, T 3.7 values 3.7.2 nominal value 3.8 voltages 3.8.1 maximum voltage, Um 3.8.2 rated voltage, U 3.8.3 rated voltage, U 4 Voltage designation and fire resistance categories 4.1 Voltage designation |
| 11 | 4.2 Fire resistance category |
| 12 | 5 Conductors and drain wire 5.1 Conductors 5.2 Drain wire 6 Insulation system 6.1 Type of insulation 6.2 Application |
| 13 | 6.3 Thickness of insulation 6.4 Spark test 7 Identification of cores 7.1 General |
| 14 | 7.2 Clarity and durability 8 Laying‑up |
| 15 | 9 Screen |
| 16 | 10 Sheath 10.1 Type of sheath 10.2 Application 10.3 Thickness of sheath 10.4 Spark testing of sheath 11 Cable marking and additional information 11.1 External marking |
| 18 | 11.2 Fire performance marking 11.3 Number of cores and cross‑sectional area identifier |
| 19 | 11.4 Standard core colour identifier 11.5 The mark of an approval organization 11.6 Additional information 11.6.1 General 11.6.2 Conflict and confusion 11.7 Durability |
| 20 | 12 Schedule of tests |
| 21 | 13 Test conditions 13.1 Temperature 13.2 Frequency and waveform of power‑frequency test voltages 14 Routine tests 14.1 General 14.2 Conductor and drain wire resistance 14.3 Voltage test on completed cable |
| 22 | 15 Sample tests 15.1 General 15.2 Voltage withstand 15.3 Length of lay of assembled cores 15.4 Flame propagation on single cable 15.5 Smoke emission 15.6 Test for resistance to fire 15.6.1 General |
| 23 | 15.6.2 Category STANDARD 30 15.6.3 Category STANDARD 60 15.6.4 Category ENHANCED 120 15.7 Ovality 16 Type tests 16.1 General 16.2 Corrosive and acid gas |
| 24 | 16.3 Shrinkage of insulation 16.4 Bending characteristics 16.5 Resistance to impact 16.6 Shrinkage of sheath |
| 25 | Annex A (informative) A.1 Aim A.2 General A.3 Maximum operating, short circuit and overload temperatures |
| 26 | A.4 Voltage ratings A.5 Cable selection and system design |
| 27 | A.6 Environment and application A.7 Installation A.7.1 General A.7.2 Minimum temperature during installation A.7.3 Minimum installation radius A.7.4 Preventing damage to cables A.7.5 Selection of cable glands, accessories and associated tools A.8 Waste and scrap cable |
| 28 | Annex B (normative) B.1 Sample preparation B.2 Test solution preparation B.3 Test procedure |
| 29 | Annex C (normative) C.1 Sample C.2 Procedure |
| 30 | Annex D (normative) D.1 Apparatus and sample D.2 Preparation D.3 Procedure |
| 31 | Annex E (normative) E.1 Apparatus and samples E.2 Procedure |
| 32 | Annex F (normative) F.1 Selection of samples F.2 Preparation of test piece F.3 Procedure F.4 Evaluation of results |
| 33 | Annex G (informative) Notes on type tests G.1 General G.2 Sample selection for type tests G.3 Type tests G.3.1 Insulation material test (see 6.1) G.3.2 Sheath material test (see 10.1) G.3.3 Durability of printing test (see 7.2) G.3.4 Corrosive and acid gas test (see 16.2) |
| 34 | G.3.5 Smoke emission test (see 15.5) G.3.6 Fire resistance test (see 15.6) G.3.6.1 General G.3.6.2 Category STANDARD 30 (see 15.6.2) G.3.6.3 Category STANDARD 60 (see 15.6.3) G.3.6.4 Category ENHANCED 120 (see 15.6.4) G.4 Change of material |
| 35 | G.5 Evidence of type testing |
| 36 | Bibliography Standards publications |
| 41 | Foreword |
| 43 | 1 Scope 2 Normative references |
| 44 | 3 Terms and definitions |
| 45 | 4 Voltage designation and fire resistance categories 4.1 Voltage designation |
| 46 | Table 1 — Maximum permitted voltages against rated voltage of cable 4.2 Fire resistance category Table 2 — Dimensions of 2‑core, 3‑core and 4‑core cables |
| 47 | Table 3 — Dimensions of multicore auxiliary cables 5 Conductors and drain wire 5.1 Conductors 5.2 Drain wire 6 Insulation system 6.1 Type of insulation 6.2 Application |
| 48 | 6.3 Thickness of insulation 6.4 Spark test 7 Identification of cores 7.1 General |
| 49 | Table 4 — Identification of cores in multicore cables 7.2 Clarity and durability 8 Laying-up |
| 50 | Figure 1 — Lay up diagram of multicore auxiliary cables (7‑core, 12‑core and 19‑core) 9 Screen |
| 51 | 10 Sheath 10.1 Type of sheath 10.2 Application 10.3 Thickness of sheath 10.4 Spark testing of sheath 11 Cable marking and additional information 11.1 External marking |
| 53 | Figure 2 — Example of the marking as used on the outer sheath of the cable 11.2 Fire performance marking 11.3 Number of cores and cross‑sectional area identifier 11.4 Standard core colour identifier 11.5 The mark of an approval organization 11.6 Additional information |
| 54 | 11.7 Durability 12 Schedule of tests |
| 55 | Table 5 — Schedule of tests |
| 56 | 13 Test conditions 13.1 Temperature 13.2 Frequency and waveform of power-frequency test voltages 14 Routine tests 14.1 General 14.2 Conductor and drain wire resistance 14.3 Voltage test on completed cable |
| 57 | 15 Sample tests 15.1 General 15.2 Voltage withstand 15.3 Length of lay of assembled cores 15.4 Flame propagation on single cable 15.5 Smoke emission 15.6 Test for resistance to fire |
| 58 | 15.7 Ovality 16 Type tests 16.1 General 16.2 Corrosive and acid gas |
| 59 | 16.3 Shrinkage of insulation 16.4 Bending characteristics 16.5 Resistance to impact 16.6 Shrinkage of sheath |
| 60 | Annex A (informative) Guide to selection, installation and operation |
| 63 | Annex B (normative) Method of test for continuity of tinned coatings of wires Annex C (normative) Method of test for voltage withstand |
| 64 | Annex D (normative) Method of test for bending characteristics |
| 65 | Annex E (normative) Method of test for resistance to impact Figure E.1 — Chisel‑edged intermediate piece for test for resistance to impact |
| 66 | Annex F (normative) Method of test for shrinkage of sheath on cable during heat treatment |
| 67 | Annex G (informative) Notes on type tests |
| 70 | Bibliography |
