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BS 7629-1:2015+A1:2019 - TC 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, 2020
- Summary of pages
- Foreword [Go to Page]
- Publishing information
- Supersession
- Relationship with other publications
- Information about this document
- Use of this document
- Presentational conventions
- Contractual and legal considerations [Go to Page]
- Compliance with a British Standard cannot confer immunity from legal obligations.
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- 3.1 cable manufacturer
- 3.2 fire resistance
- 3.3 length of lay
- 3.4 routine tests, R
- 3.5 sample tests, S
- 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 [Go to Page]
- 4.1 Voltage designation
- 4.2 Fire resistance category
- 5 Conductors and drain wire [Go to Page]
- 5.1 Conductors
- 5.2 Drain wire
- 6 Insulation system [Go to Page]
- 6.1 Type of insulation
- 6.2 Application
- 6.3 Thickness of insulation
- 6.4 Spark test
- 7 Identification of cores [Go to Page]
- 7.1 General
- 7.2 Clarity and durability
- 8 Laying‑up
- 9 Screen
- 10 Sheath [Go to Page]
- 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 [Go to Page]
- 11.1 External marking
- 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 [Go to Page]
- 11.6.1 General
- 11.6.2 Conflict and confusion
- 11.7 Durability
- 12 Schedule of tests
- 13 Test conditions [Go to Page]
- 13.1 Temperature
- 13.2 Frequency and waveform of power‑frequency test voltages
- 14 Routine tests [Go to Page]
- 14.1 General
- 14.2 Conductor and drain wire resistance
- 14.3 Voltage test on completed cable
- 15 Sample tests [Go to Page]
- 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 [Go to Page]
- 15.6.1 General
- 15.6.2 Category STANDARD 30
- 15.6.3 Category STANDARD 60
- 15.6.4 Category ENHANCED 120
- 15.7 Ovality
- 16 Type tests [Go to Page]
- 16.1 General
- 16.2 Corrosive and acid gas
- 16.3 Shrinkage of insulation
- 16.4 Bending characteristics
- 16.5 Resistance to impact
- 16.6 Shrinkage of sheath
- Annex A (informative) [Go to Page]
- A.1 Aim
- A.2 General
- A.3 Maximum operating, short circuit and overload temperatures
- A.4 Voltage ratings
- A.5 Cable selection and system design
- A.6 Environment and application
- A.7 Installation [Go to Page]
- 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
- Annex B (normative) [Go to Page]
- B.1 Sample preparation
- B.2 Test solution preparation
- B.3 Test procedure
- Annex C (normative) [Go to Page]
- C.1 Sample
- C.2 Procedure
- Annex D (normative) [Go to Page]
- D.1 Apparatus and sample
- D.2 Preparation
- D.3 Procedure
- Annex E (normative) [Go to Page]
- E.1 Apparatus and samples
- E.2 Procedure
- Annex F (normative) [Go to Page]
- F.1 Selection of samples
- F.2 Preparation of test piece
- F.3 Procedure
- F.4 Evaluation of results
- Annex G (informative) Notes on type tests [Go to Page]
- G.1 General
- G.2 Sample selection for type tests
- G.3 Type tests [Go to Page]
- 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)
- G.3.5 Smoke emission test (see 15.5)
- G.3.6 Fire resistance test (see 15.6) [Go to Page]
- 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
- G.5 Evidence of type testing
- Bibliography [Go to Page]
- Standards publications
- 30371879-Tracked_Changes_Cover_Markup_new.pdf [Go to Page]
- compares BS 7629-1:2015+A1:2019 [Go to Page]
- TRACKED CHANGES
- Text example 1 — indicates added text (in green)
- 30371879.pdf [Go to Page]
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Voltage designation and fire resistance categories [Go to Page]
- 4.1 Voltage designation
- 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
- Table 3 — Dimensions of multicore auxiliary cables
- 5 Conductors and drain wire [Go to Page]
- 5.1 Conductors
- 5.2 Drain wire
- 6 Insulation system [Go to Page]
- 6.1 Type of insulation
- 6.2 Application
- 6.3 Thickness of insulation
- 6.4 Spark test
- 7 Identification of cores [Go to Page]
- 7.1 General
- Table 4 — Identification of cores in multicore cables
- 7.2 Clarity and durability
- 8 Laying-up [Go to Page]
- Figure 1 — Lay up diagram of multicore auxiliary cables (7‑core, 12‑core and 19‑core)
- 9 Screen
- 10 Sheath [Go to Page]
- 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 [Go to Page]
- 11.1 External marking
- 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
- 11.7 Durability
- 12 Schedule of tests [Go to Page]
- Table 5 — Schedule of tests
- 13 Test conditions [Go to Page]
- 13.1 Temperature
- 13.2 Frequency and waveform of power-frequency test voltages
- 14 Routine tests [Go to Page]
- 14.1 General
- 14.2 Conductor and drain wire resistance
- 14.3 Voltage test on completed cable
- 15 Sample tests [Go to Page]
- 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
- 15.7 Ovality
- 16 Type tests [Go to Page]
- 16.1 General
- 16.2 Corrosive and acid gas
- 16.3 Shrinkage of insulation
- 16.4 Bending characteristics
- 16.5 Resistance to impact
- 16.6 Shrinkage of sheath
- Annex A (informative) Guide to selection, installation and operation
- Annex B (normative) Method of test for continuity of tinned coatings of wires
- Annex C (normative) Method of test for voltage withstand
- Annex D (normative) Method of test for bending characteristics
- Annex E (normative) Method of test for resistance to impact [Go to Page]
- Figure E.1 — Chisel‑edged intermediate piece for test for resistance to impact
- Annex F (normative) Method of test for shrinkage of sheath on cable during heat treatment
- Annex G (informative) Notes on type tests
- Bibliography [Go to Page]