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NABL accredited testing

IS 3975 Testing: Steel Armour Wires & Tapes for Cables

NABL accredited testing of steel armour wires & tapes for cables to IS 3975: 22 tests, each against its clause.

StandardIS 3975 · BIS certification under IS 3975
CoversCross Linked Polyethylene Insulated, PVC sheathed cables for working voltages up to and Including 1100 volts; Low carbon Galvanised Steel Wires Formed Wires And Tapes For Armouring Of cables; Low carbon Galvanised Steel Wires Formed Wire And Tapes For Armouring Of cables; PVC insulated (heavy duty) Electric cables For Working voltages up to and including 1100 Volts
Accredited tests22
AccreditationNABL, ISO/IEC 17025:2017
BIS-recognised testingAsk us which laboratory your BIS scheme accepts
CategoryCable & Wire Testing

IS 3975 tests we offer

Cross Linked Polyethylene Insulated, PVC sheathed cables for working voltages up to and Including 1100 volts

#TestClause / method
1Armour Resistance TestCl. 15.1(b) Cl. 13.6(g) of IS 7098 (Pt-1),Cl. 8.4 of IS3975,IS 10810 (Pt 42)
2Torsion test on Galvanized steel wire for armouringCl. 15.1(b) Cl. 13.6(c)of IS 7098(Pt-1),Cl. 8.2 of Table 6 of IS3975,IS 10810 (Pt 38)
3Mass of Zinc coatingCl. 15.1(b) Cl.13.6 (f)of IS 7098(Pt-1), Cl. 9.1 of IS 3975,IS 10810 (Pt 41)
4Dimension for armouring materialCl.15.1(b) Cl.13.6(a), (b) of IS 7098(Pt- 1),Cl.7 of IS 3975,IS 10810 (Pt 36)
5Uniformity of Zinc coatingCl. 15.1(b) Cl. 13.6(e) of IS 7098(Pt-1),Cl. 9.2 of IS3975,IS 10810 (Pt40)
6Resistivity & Conductance test of Armour (Wires/strips)Cl. 15.1(b) Cl. 13.6(g) of IS 7098(Pt-1),Cl. 8.4 of IS 3975,IS10810 (Pt 42)

Low carbon Galvanised Steel Wires Formed Wires And Tapes For Armouring Of cables

#TestClause / method
1DimensionsIS 3975 Cl 7.2
2Dimensions of Formed WireIS 3975 Cl 7.3.1
3ElongationIS 3975 1999 Cl 8.1,IS 1608 (P-1) Cl 1 to 20
4Tensile TestIS 3975 1999 Cl 8.1,IS 1608 Cl 1 to 20
5Thickness of TapesIS 3975 Cl 7.4.1
6Torsion Test For (Round Wire only)IS 3975 1999 Cl 8.2,IS 1717 C 1 to 8 Annexure-A

Low carbon Galvanised Steel Wires Formed Wire And Tapes For Armouring Of cables

#TestClause / method
1Adhesion TestIS 3975 Cl 9.3
2Galvanising (Mass Of Zinc Coating (g/m²) on Round Wire, Formed Wire and TapesIS 3975:1999 Cl 9, IS 6745 Cl 3.1.1 and 3.4
3Resistance Test (For Round And Formed Wires)IS 3975:1999 Cl 8.4, IS 10810 (P-42) Cl 1 to 11.2 Table-1
4Uniformity Of Zinc CoatingIS 3975:1999 Cl 9, IS 2633 Cl 1 to 5
5Wrapping TestIS 3975:1999 Cl 8.3, IS 1755 Cl 1 to 6 Appendix-A

PVC insulated (heavy duty) Electric cables For Working voltages up to and including 1100 Volts

#TestClause / method
1Uniformity of Zinc coatingCl. 15.1(b) Cl. 13.6(e) of IS 1554 (Pt- 1),Cl. 9.2 of IS3975,IS 10810 (Pt40)
2Mass of Zinc coatingCl. 15.1(b) Cl. 13.6 (f)of IS 1554 (Pt-1),Cl. 9.1 of IS 3975,IS 10810 (Pt 41)
3Armour Resistance TestCl. 15.1(b) Cl.13.6 (g)of IS 1554 (Pt-1), Cl. 8.4 of IS 3975,IS 10810 (Pt 42)
4Dimension for armouring materialCl.15.1 b), Cl.13.6(a),(b) of IS1554(Pt-1), Cl.7 of Table 5 of IS 3975,IS10810 (Pt 36)
5Torsion test on Galvanized steel wire forarmouringCl. 15.1(b) Cl. 13.6(c)of IS 1554(Pt-1),Cl. 8.2 of Table 6 of IS3975,IS 10810 (Pt 38)

How IS 3975 testing works

  1. Tell us the purpose. BIS certification, a tender, a customer requirement or a design check. The purpose decides which clauses and which laboratory.
  2. Get the sample list and quote. We confirm the tests, the number of samples and the timeline for your product and its variants.
  3. Send samples. We help with labels, the test request and any technical documents the tests need.
  4. Testing and report. Tests are carried out under NABL accreditation and the report lists each clause, the requirement and the result.
  5. Review and use. We check the report before you submit it to BIS, a tender authority or your customer, and help if they raise a query.

Need the ISI mark or CRS registration as well? See IS 3975 BIS certification for the products covered, the order, fees and process.

Frequently asked questions

Which IS 3975 tests are NABL accredited?

All 22 tests listed on this page are within NABL accreditation (ISO/IEC 17025), each against the clause of IS 3975 shown next to it. The report carries the NABL accreditation mark for these tests.

Can the IS 3975 test report be used for BIS certification?

BIS accepts reports only from laboratories it has recognised for the standard. Before testing, we confirm which laboratory your BIS application needs, so you do not pay for a report BIS will not accept.

How many samples are needed for IS 3975 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 IS 3975?

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

All NABL testing categories

See the NABL testing service for how we work. Tests listed are within NABL accreditation (ISO/IEC 17025).

Not sure which certification your product needs?

Talk to a team led by former BIS Directors. We'll map every approval your product needs before you spend on testing.

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