Resources & Guides
Free reference charts, wiring guides and standards explainers for Indian house wiring — charts, guides and standards explainers, free to read online.
Guides
Battery and Automotive Cable Selection GuideFlexible low-voltage DC cable for vehicles, starters and battery banks.Read →
Cable Armouring Guide: Wire, Strip or Unarmoured?What armour actually does, when you need it, and how single-core armouring differs from multicore.Read →
Cable Gland Selection Guide: A2, BW, CW and E1W ExplainedWhich gland goes on which cable — and why the armour clamp is part of your earthing system.Read →
Cable Pulling Guide: Tension, Sidewall Pressure and RollersThe three numbers to check before any long cable pull, and how to keep them within limits on site.Read →
Cable Tray Sizing and Fill Guide: Width, Fill Ratio and Spare CapacityHow to size a cable tray from the cable schedule so the cables inside it keep their rating.Read →
Conduit Types for House Wiring: PVC, GI and Flexible, Where Each BelongsWhich conduit to use in the wall, on the wall, outdoors and inside the false ceiling, and the mistakes that ruin the wire inside it.Read →
Control Cable Core-Count and Spare-Core Planning GuideSpare cores cost rupees today and a re-pull tomorrow.Read →
Covered Conductor (MVCC) Selection Guide: 11 kV to 132 kVWhere covered conductors beat bare lines and ABC, what the construction layers do, and the standards that govern them.Read →
Diesel Generator (DG Set) Cable Selection GuideSizing the cable from a DG set on full-load current, not on the kVA badge.Read →
Distribution Board (DB) Wiring GuideHow a home distribution board is organised for safety and load balance.Read →Download PDF
Earthing & Grounding Guide for HomesWhy home earthing matters and how the earth conductor is sized.Read →Download PDF
EV Home Charger Wiring Guide (3.3 kW & 7.4 kW)The cable size, MCB and protection a home EV charger needs — for 3.3 kW and 7.4 kW units.Read →Download PDF
Extension Lead and Portable Cable Safety GuideUsing flexible leads safely: rating, coiling, daisy-chaining and outdoor use.Read →
Fibre Count Planning Guide: How Many Fibres to LayA method for choosing the fibre count on a new route so the cable is not the reason for the next civil works.Read →
Fibre Optic Cable Selection Guide: Duct, Armoured, Aerial & FTTHWhich construction fits which route — with fibre counts, operating limits and the fire-rated options.Read →
Fire Alarm Cable Selection GuideA detection loop is only as good as the cable that keeps carrying it while the building burns.Read →
Home Electrical Load Calculation Guide (kW to Wire Size)Add up your appliance loads and translate the total into the right wire size.Read →Download PDF
House Wire Buying Checklist (2026)Twelve checks to run before house wire goes into your walls — printed so you can take it to the shop.Read →
How to Read a Cable Datasheet, Line by LineWhat each row of a cable datasheet means, which numbers matter, and where the traps are.Read →
Instrumentation Cable Selection Guide (Pairs, Screens and Armour)Read an instrumentation cable spec properly and the screening decision makes itself.Read →
Monsoon Wiring Safety Checklist for Indian HomesTen checks for the wet months, from the RCCB test button to the joint on the balcony.Read →
Multicore / Flexible Cable Selection GuideChoosing the right multicore flexible cable for appliances, pumps and machines.Read →Download PDF
Overhead Line Conductors Compared: AAC, AAAC, ACSR and Covered ConductorBare aluminium, alloy, steel-reinforced or covered, and which one suits your span.Read →
Rooftop Solar Cable Sizing Guide (DC & AC)How to size the DC and AC cabling for a rooftop solar system.Read →Download PDF
Separating Power, Data and CCTV in Shared ConduitThe cheapest fix for interference is a second conduit, decided before the slab is poured.Read →
Street Lighting Cable Selection GuideChoosing underground and overhead cable for lighting feeders and pole runs.Read →
Structured Cabling Basics: LAN, CCTV & CATVA quick primer on data, surveillance and cable-TV wiring for homes and offices.Read →Download PDF
Submersible Pump Cable Selection Guide (by HP)Which flat submersible cable size to use for borewell pumps, by motor rating.Read →Download PDF
Three-Phase vs Single-Phase Home WiringWhen a home needs a three-phase connection, and how the wiring differs from single-phase.Read →Download PDF
Trefoil vs Flat: Laying Single-Core CablesWhy three single-core cables get bunched into a triangle, and when you would spread them out instead.Read →
Underground Cable Laying Guide (IS 1255): Depth, Bedding and ProtectionHow deep to dig, what to pack around the cable, and how to stop the next JCB finding it the hard way.Read →
Welding Cable Selection GuideMatching conductor size to welding current, duty cycle and lead length.Read →
When to Rewire: Home Wiring Health ChecklistWarning signs that home wiring is ageing and due for replacement.Read →Download PDF
Why Buried Power Cables Fail: A Field Guide to Cable FaultsThe usual suspects behind underground cable faults, roughly in order of guilt.Read →
How to Read a House-Wire LabelDecode the markings printed on a house wire - grade, voltage, standard and the ISI mark.Read →Download PDF
Home Wiring Good-Practice GuideA practical homeowner's guide to safe, fire-resistant house wiring in India.Read →Download PDF
FR, FRLS, HR-FR-LSH or HFFR: Which Wire to ChooseA decision guide to the fire-safety grades of house wire - and which suits your building.Read →Download PDF
How to Spot Fake or Sub-Standard WireSimple checks to tell genuine, certified house wire from counterfeit or under-spec wire.Read →Download PDF
A-Z Glossary of Cable & Wire TermsPlain-English definitions of the cable and wiring terms you will come across.Read →Download PDF
Charts & Tables
Cable Derating Factors Chart (Temperature & Grouping)How ambient heat and bunching reduce a cable's safe current rating.Read →Download PDF
Conductor Class Chart for IEC 60228 Classes 1, 2, 5 and 6Class is not a quality grade. It is a flexibility grade with a resistance ceiling.Read →
House Wire Fire-Performance Chart: What Good Looks LikeThe four measured fire-safety parameters, what each one means, and the values worth insisting on.Read →
How Much Wire Does a Home Need? (Estimator)A rough starting estimate of house wire required by home size.Read →Download PDF
kW to Cable Size: Motor & Load Cable Sizing ChartConvert a load in kilowatts to an approximate current and copper cable size, single and three-phase.Read →Download PDF
LV XLPE Cable Current-Rating Chart (Copper, IS 7098 Part 1)Copper conductor DC resistance, current ratings in ground and air, and 1-second short-circuit ratings — 4 to 1000 sq mm.Read →
Minimum Bending Radius Chart for Power CablesTypical minimum bend radii as a multiple of cable diameter, and why the datasheet always wins.Read →
MV & LV Cable Derating Factors: Depth of Laying & TemperatureMultiply the catalogue rating by these factors for your actual depth, ground temperature and air temperature.Read →
MV Cable Voltage Grade Chart: U0/U Ratings from 1.1 kV to 66 kV (IS 7098)What 6.35/11 kV and 11/11 kV actually mean, and which grade to specify for each system voltage and earthing arrangement.Read →
Short-Circuit Withstand Chart for Cable Conductors (Adiabatic Method)How much fault current a conductor survives for one second, and the simple formula behind it.Read →
Solar DC Cable Chart: Sizes, Resistance & Current Ratings (BS EN 50618)E-beam XLPO solar cable from 2.5 to 300 sq mm — construction, DC resistance, diameter and current ratings at 60°C.Read →
SWG / AWG to sq mm Conversion ChartConvert wire gauge (SWG/AWG) to the sq mm sizes used on Indian cables.Read →Download PDF
Wire Size for Home Appliances (AC, Geyser, EV Charger, Pump)A quick chart of the recommended copper house-wire size and MCB for common home appliances.Read →Download PDF
House-Wire Current-Rating (Ampacity) ChartCurrent-carrying capacity of copper house wires (IS 694, 1100 V), with derating factors.Read →Download PDF
Household Load to Wire-Size Selection GuideWhich copper wire size (sq mm) to use for common Indian household circuits and appliances.Read →Download PDF
Indian Wire Colour-Code ChartPhase, neutral and earth wire colours under the old and the new (IEC) Indian conventions.Read →Download PDF
Cable Voltage-Drop Reference TableVoltage-drop values (mV/A/m) for copper house wires, with the 3% limit and a worked example.Read →Download PDF
MCB Rating to Wire-Size ChartMatch the circuit-breaker (MCB) rating to the correct copper house-wire size.Read →Download PDF
Conduit Fill Chart for House WiresHow many house wires fit safely in a conduit - based on the 40% fill rule.Read →Download PDF
Copper vs Aluminium Wire: Comparison TableHow copper and aluminium conductors compare - conductivity, weight, cost and best use.Read →Download PDF
Standards
IS 694 vs IS 17048: House-Wire Standards ExplainedWhat the two key Indian house-wire standards cover — and which wire suits your building.Read →Download PDF
Routine, Sample and Type Tests: What Cable Test Certificates Actually Tell YouThe three families of factory cable tests, and which certificate to ask for with your order.Read →
House-Wire IS Standards Quick-ReferenceThe key Indian Standards (IS) for house wires and cables - and what each one covers.Read →Download PDF