BS 7870-2:2022

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LV and MV polymeric insulated cables for use by distribution and generation utilities – Methods of test (Implementation of HD 605 S3:2019)

Published By	Publication Date	Number of Pages
BSI	2022	36

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Categories: 29.060.20 - Cables, BSI

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Description

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PDF Pages	PDF Title
4	Foreword
7	Introduction Table 1 — Clause references
9	1 Scope 2 Normative references
10	3 Terms and deﬁnitions 4 Sampling 5 Tests conditions 5.1 Ambient temperature 5.2 Tolerance on temperature values Table 2 — Tolerance on temperature values
11	5.3 Frequency and waveform of power-frequency test voltages 5.4 Pre-conditioning 6 Rounding of numbers 7 Non-electrical tests 7.1 Dimensional measurements
14	Figure 1 — Dissociation, inclusion and penetration Table 3 — Assessment criteria
15	7.2 Mechanical tests on non-metallic components
16	Figure 2 — Test piece for tear resistance test method 2
17	7.3 Non-electrical tests on samples of complete cable
19	Figure 3 — Abrasion test Table 4 — Vertical force on cable during abrasion test
21	Figure 4 — Schematic diagram of apparatus for water penetration test
22	7.4 Physical and chemical tests
23	Figure 5 — Details of test apparatus to determine the tape swell height
24	8 Electrical tests 8.1 Conductors 8.2 Voltage tests
26	8.3 Insulation resistance tests
27	Figure 6 — Height measurement of insulated sectoral shaped conductors 8.4 Spark tests 8.5 Heating cycle test
28	8.6 Measurement of the electrical resistivity of the semi-conducting screens Figure 7 — Measurement of the volume resistivity of the conductor and insulation screens
30	8.7 Partial discharge test 8.8 Tan δ measurement
31	Table 5 — Coefficients for correction of tan δ values to 20 °C 8.9 Adherence of screens at short circuit temperature
32	9 Long-term tests for resistance to water 9.1 Principle 9.2 Approval 9.3 Test method

Additional information

Status	Definitive
Pages	36
Publication Date	2022-11-16
ISBN	978 0 539 21138 2
Standard Number	BS 7870-2:2022
Title	LV and MV polymeric insulated cables for use by distribution and generation utilities – Methods of test (Implementation of HD 605 S3:2019)
Replaces	BS 7870-2:2011
Descriptors	Tear tests, Dimensional measurement, Immersion tests (corrosion), Physical testing, Power cables, Sampling methods, Determination of content, Polymers, Voltage measurement, Temperature, Cable sheaths, Bend testing, Corrosion tests, Testing conditions, Fire tests, Resistance measurement, Endurance testing, Flame propagation, Smoke, Water content determination, Test equipment, Mechanical testing, Gases, Sheathed cables, Corrosive materials, Performance testing, Chemical analysis and testing, Thermal-shock tests, Partial discharges, Water-resistance tests, Electric conductors, Elongation at fracture, Error correction, Electric cables, Electrical testing, Plastics and rubber technology, Low voltage, Electrical insulation, Equations, Plasticity testing, Thermal testing, Cut-through tests, Thickness measurement, Medium voltage, Insulated cables
Publisher	BSI
Committee	GEL/20/16
ICS Codes	29.060.20 - Cables

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BS 7870-2:2022

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