NABL accredited testing
BS EN 50525 Testing: Low Voltage Energy Cables
NABL accredited testing of low voltage energy cables to BS EN 50525: 92 tests, each against its clause.
Independent private consultancy. Aaditech is not BIS or any government department and is not affiliated with or endorsed by them. Licences are granted only by the authority, and you can apply directly on its portal. Our consultancy fees are separate from official fees.
| Standard | BS EN 50525 |
|---|---|
| Covers | Low Voltage Energy Cables – Single Core non- sheathed cables with halogen-free cross-linked insulation and low emission of smoke; Flexible Cables with Thermoplastic PVC Insulation; Single Core non-sheathed cables with thermoplastic PVC Insulation; Low Voltage Energy Cables – Flexible Cables with cross- linked elastomeric insulation; Low Voltage Energy Cables – Multicore Cables with cross- linked Silicon Rubber insulation; Single core cables with crosslinked silicone rubber insulation; Single core non-sheathed cables with crosslinked EVA insulation; Low Voltage Energy Cables - Part 1 General Requirements; Low Voltage Energy Cables : General Requirements |
| Accredited tests | 92 |
| Accreditation | NABL, ISO/IEC 17025:2017 |
| Category | Cable & Wire Testing |
BS EN 50525 tests we offer
Low Voltage Energy Cables – Single Core non- sheathed cables with halogen-free cross-linked insulation and low emission of smoke
| # | Test | Clause / method |
|---|---|---|
| 1 | Ageing in Air Oven Elongation test | BS EN 50525-3-41 |
| 2 | Ageing in Air Oven Tensile strength | BS EN 50525-3-41 |
| 3 | Cold Impact Test | BS EN 50525-3-41 |
| 4 | Conductivity | BS EN 50525-3- 41 |
| 5 | Conductor Resistance | BS EN 50525-3-41 |
| 6 | Elongation at break on Insulation and Sheath | BS EN 50525-3-41 |
| 7 | Elongation Test at Low Temperature | BS EN 50525-3-41 |
| 8 | Halogen Acid Gas Evolution / Corrosive & halogen acid gas | BS EN 50525-3-41 |
| 9 | High Voltage test (Water immersion) | BS EN 50525-3-41 |
| 10 | High Voltage test at room temperature | BS EN 50525-3-41 |
| 11 | Hot deformation test / Pressure Test at High Temperature | BS EN 50525-3-41 |
| 12 | Hot Set Test | BS EN 50525-3-41 |
| 13 | Insulation Resistance | BS EN 50525-3-41 |
| 14 | Ozone Resistance Test | BS EN 50525-3-41 |
| 15 | pH | BS EN 50525-3-41 |
| 16 | Smoke Density under Fire Conditions | BS EN 50525-3-41 |
| 17 | Tensile strength at break on Insulation and Sheath | BS EN 50525-3-41 |
| 18 | Test for eccentricity and Thickness of insulation and sheath / Overall Dimensions | BS EN 50525-3-41 |
| 19 | Test under Fire Conditions / Flammability test (unaffected portion/ under period of Burning) | BS EN 50525-3-41 |
Flexible Cables with Thermoplastic PVC Insulation
| # | Test | Clause / method |
|---|---|---|
| 1 | Ageing in Air Oven Elongation test | BS EN 50525-2-11 |
| 2 | Ageing in Air Oven Tensile Strength | BS EN 50525-2-11 |
| 3 | Bending Test at Low Temperature | BS EN 50525-2-11 |
| 4 | Conductor Resistance | BS EN 50525-2-11 |
| 5 | Elongation at break on Insulation and Sheath | BS EN 50525-2-11 |
| 6 | Elongation Test at Low Temperature | BS EN 50525-2-11 |
| 7 | Flexing Test | BS EN 50525-2-11 |
| 8 | Heat Shock Test | BS EN 50525-2-11 |
| 9 | Hot deformation test / Pressure Test at High Temperature | BS EN 50525-2-11 |
| 10 | Long Term Resistance of Insulation to d.c | BS EN 50525-2-11 |
| 11 | Loss of Mass | BS EN 50525-2-11 |
| 12 | Mechanical Strength of Strain Bearing Member | BS EN 50525-2-11 |
| 13 | Tensile strength at break on Insulation and Sheath | BS EN 50525-2-11 |
| 14 | Test for eccentricity and Thickness of insulation and sheath / Overall Dimensions | BS EN 50525-2-11 |
| 15 | Test under Fire Conditions / Flammability test (unaffected portion/ under period of Burning) | BS EN 50525-2-11 |
| 16 | Thermal Stability | BS EN 50525-2-11 |
| 17 | Voltage Test at 2000 V or 2500 V | BS EN 50525-2-11 |
Single Core non-sheathed cables with thermoplastic PVC Insulation
| # | Test | Clause / method |
|---|---|---|
| 1 | Ageing in Air Oven Elongation | BS EN 50525-2-31 |
| 2 | Ageing in Air Oven Tensile Strength | BS EN 50525-2-31 |
| 3 | Bending Test at Low Temperature | BS EN 50525-2-31 |
| 4 | Conductor Resistance | BS EN 50525-2-31 |
| 5 | elongation at break on Insulation and Sheath | BS EN 50525-2-31 |
| 6 | Elongation Test at Low Temperature | BS EN 50525-2-31 |
| 7 | Heat Shock Test | BS EN 50525-2-31 |
| 8 | Hot deformation test / Pressure Test at High Temperature | BS EN 50525-2-31 |
| 9 | Long Term Resistance of Insulation to d.c | BS EN 50525-2-31 |
| 10 | Loss of Mass | BS EN 50525-2-31 |
| 11 | Measurement of Overall Dimensions | BS EN 50525-2-31 |
| 12 | Measurement of Thickness of Insulation & Sheath | BS EN 50525-2-31 |
| 13 | Tensile strength at break on Insulation and Sheath | BS EN 50525-2-31 |
| 14 | Test under Fire Conditions / Flammability test (unaffected portion/ under period of Burning) | BS EN 50525-2-31 |
| 15 | Thermal Stability | BS EN 50525-2-31 |
| 16 | Voltage Test at 2000 V or 2500 V | BS EN 50525-2-31 |
Low Voltage Energy Cables – Flexible Cables with cross- linked elastomeric insulation
| # | Test | Clause / method |
|---|---|---|
| 1 | Elongation at break on Insulation and Sheath | BS EN 50525-2-21 |
| 2 | Ageing in Air Oven Elongation test | BS EN 50525-2-21 |
| 3 | Ageing in Air Oven Tensile strength | BS EN 50525-2-21 |
| 4 | Conductor Resistance | BS EN 50525-2-21 |
| 5 | Elongation Test at Low temperature | BS EN 50525-2-21 |
| 6 | High Voltage test (Water immersion) | BS EN 50525-2-21 |
| 7 | High Voltage test at room temperature | BS EN 50525-2-21 |
| 8 | Hot Set Test | BS EN 50525-2-21 |
| 9 | Ozone Resistance Test | BS EN 50525-2-21 |
| 10 | Tensile strength at break on Insulation and Sheath | BS EN 50525-2-21 |
| 11 | Test for eccentricity and Thickness of insulation and sheath / Overall Dimensions | BS EN 50525-2-21 |
| 12 | Test under Fire Conditions / Flammability Test | BS EN 50525-2-21 |
Low Voltage Energy Cables – Multicore Cables with cross- linked Silicon Rubber insulation
| # | Test | Clause / method |
|---|---|---|
| 1 | Ageing in Air Oven Elongation test | BS EN 50525-2-83 |
| 2 | Ageing in Air Oven Tensile strength | BS EN 50525-2-83 |
| 3 | Cold Impact Test | BS EN 50525-2-83 |
| 4 | Conductor Resistance | BS EN 50525-2-83 |
| 5 | elongation at break on Insulation and Sheath | BS EN 50525-2-83 |
| 6 | Elongation Test at Low Temperature | BS EN 50525-2-83 |
| 7 | High Voltage test (Water immersion) | BS EN 50525-2-83 |
| 8 | High Voltage test at room temperature | BS EN 50525-2-83 |
| 9 | Hot Set Test | BS EN 50525-2-83 |
| 10 | Ozone Resistance Test | BS EN 50525-2-83 |
| 11 | Tensile strength at break on Insulation and Sheath | BS EN 50525-2-83 |
| 12 | Test for eccentricity and Thickness of insulation and sheath / Overall Dimensions | BS EN 50525-2-83 |
Single core cables with crosslinked silicone rubber insulation
| # | Test | Clause / method |
|---|---|---|
| 1 | Ageing in Air Oven Elongation | BS EN 50525-2-41 |
| 2 | Ageing in Air Oven Tensile Strength | BS EN 50525-2-41 |
| 3 | Conductor Resistance | BS EN 50525-2-41 |
| 4 | Insulation Resistance | BS EN 50525-2-41 |
| 5 | Test for eccentricity and Thickness of insulation and sheath / Overall Dimensions | BS EN 50525-2-41 |
Single core non-sheathed cables with crosslinked EVA insulation
| # | Test | Clause / method |
|---|---|---|
| 1 | Ageing in Air Oven Elongation test | BS EN 50525-2-42 |
| 2 | Ageing in Air Oven Tensile Test | BS EN 50525-2-42 |
| 3 | Conductor Resistance | BS EN 50525-2-42 |
| 4 | Insulation Resistance | BS EN 50525-2-42 |
| 5 | Test for eccentricity and Thickness of insulation and sheath / Overall Dimensions | BS EN 50525-2-42 |
Low Voltage Energy Cables - Part 1 General Requirements
| # | Test | Clause / method |
|---|---|---|
| 1 | Fluorine Test | BS EN 50525-1 |
| 2 | Long Term Resistance of Insulation to D.C | BS EN 50525-1 |
| 3 | Voltage Test at 2000 V or 2500 V | BS EN 50525-1 |
| 4 | Voltage Test on cores at 2500 V | BS EN 50525-1 |
Low Voltage Energy Cables : General Requirements
| # | Test | Clause / method |
|---|---|---|
| 1 | Assessment of halogens for all non-metallic materials | BS EN 50525-1 |
| 2 | Insulation Resistance | BS EN 50525-1 |
How BS EN 50525 testing works
- Tell us the purpose. Export, a tender, a customer requirement or a design check. The purpose decides which clauses and which laboratory.
- Get the sample list and quote. We confirm the tests, the number of samples and the timeline for your product and its variants.
- Send samples. We help with labels, the test request and any technical documents the tests need.
- Testing and report. Tests are carried out under NABL accreditation and the report lists each clause, the requirement and the result.
- Review and use. We check the report before you submit it to a regulator, a tender authority or your customer, and help if they raise a query.
Frequently asked questions
Which BS EN 50525 tests are NABL accredited?
All 92 tests listed on this page are within NABL accreditation (ISO/IEC 17025), each against the clause of BS EN 50525 shown next to it. The report carries the NABL accreditation mark for these tests.
Is the BS EN 50525 test report accepted outside India?
NABL is a signatory to the ILAC Mutual Recognition Arrangement, so its accredited reports are recognised by accreditation bodies in other member countries. Your buyer or regulator still decides what it accepts, so we confirm their requirement before testing.
How many samples are needed for BS EN 50525 testing?
It depends on the product, its variants and the tests you need. Share the product details and the purpose of the test (BIS, tender or customer) and we will send the sample list and a quote.
Can you test only some clauses of BS EN 50525?
Yes. For a tender, a customer complaint or a design check, we can test selected clauses. For BIS certification or a type test, every applicable clause has to be covered.
Other cable & wire testing
- IS 10810 Methods of Test for Cables
- IS 7098 XLPE Insulated Cables
- IS 1554 PVC Insulated Heavy Duty Cables
- IS 9968 Elastomer Insulated Cables
- IS 17505 Fire Survival Cables
- IS 6380 Elastomeric Insulation & Sheath for Cables
- IS 5831 PVC Insulation & Sheath for Cables
- IS 4289 Flexible Lift Cables
- IS 16246 Fire Resistant Circuit Integrity Cables
- IS 8130 Conductors for Insulated Cables
- IS 17293 Solar PV Cables
- IS 14494 Flexible Mining Cables
- IS 17048 HFFR Cables
- IS 694 PVC Insulated Cables
- IS 2465 Cables for Motor Vehicles
- IS 3975 Steel Armour Wires & Tapes for Cables
- IS 14255 Aerial Bunched Cables
- IS 9857 Welding Cables
- IEC 60502 Power Cables 1 kV to 30 kV
- ANSI/TIA 568-C Ethernet (Twisted-Pair) Cables
- IEC 60245 Rubber Insulated Flexible Cables
- IEC 60227 PVC Insulated Cables up to 450/750 V
- BS 7846 Fire Resistant Armoured Cables
- BS 7629 Fire Resistant Screened Cables
- BS EN 50618 Solar PV Cables
- IEC 62930 Solar PV Cables
- BS 7655 Cable Insulation & Sheathing Materials
- BS EN 50288 Communication & Control Cables
- BS 6004 PVC Insulated & Sheathed Cables
- PAS 5308 Control & Instrumentation Cables
- ISO 6722 Automotive Cables
- BS 7889 Thermosetting Non-Armoured Cables
- BS EN 50363 Cable Insulation & Sheathing Materials
- BS 5467 Thermosetting Armoured Cables
- BS 6195 Flexible Cables for Coil Leads
- HD 626 Aerial Bunched Cables
- BS 6231 Single Core PVC Flexible Cables
- BS EN 50396 Non-Electrical Test Methods for Cables
- IEC 60811 Test Methods for Cable Materials
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See the NABL testing service for how we work. Tests listed are within NABL accreditation (ISO/IEC 17025).
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