Egypt's first and most complete busbar trunking manufacturer. From 20A light circuits to 10,000A high-power risers — Q-Bars delivers accredited type-tested systems built for MEP professionals.
20A–10kA
Full Range
4 Wks
Delivery
24 Hr
On-Site Response
Type
Tested
Submersion rated
IP68 Waterproof
Accredited type-tested for full submersion — rooftops, basements, underground runs.
Accredited
Type Tested
99.9%+ Copper Purity
IP68 Hybrid Range
960°C Fire Retardant
5-Year Warranty
Cu & Al Conductors
Our Products
Complete Busbar Range
Five specialized product lines covering every power distribution need — from parking lighting to industrial power risers.
630A – 10,000A
Q-Bar High Power
True sandwich construction with patented double-layer insulation. The backbone of heavy commercial and industrial power distribution.
5-pole · Cu & Al · Insulation 10,000V
Operating temp 300°C — exceeds Class H
View Product →
600A – 5,000A
Q-Bar Hybrid IP68
Proprietary soft resin — the world's only removable cast resin busbar. IP55 to IP68 on the same profile, underground to rooftop.
IP68 · Bi-metal · 600A–5,000A
Underground · Outdoor · EV Charging
View Product →
20A – 80A
Q-Bar Light
Air-insulated compact busbar with up to 10 tap-offs per 3m section. Ideal for parking areas and lighting circuits.
10 tap-offs per 3m section
Parking / Lighting / Warehouses
View Product →
400A – 3,200A
Updating
Q-Bar Industrial
Plug-in type for flexible power distribution across industrial floors, malls and large commercial spaces.
Advanced copper composite technology delivering high conductivity with optimized material usage.
📋
IEC-Based Specifications
All Q-Wires products comply with IEC international standards. Full datasheet documentation available.
🏭
Made in Egypt
Manufactured in Sadat City. Same manufacturing philosophy as Q-Bars — quality, speed, local support.
⚡
Wire Sizing Calculator
Free online wire sizing and multi-circuit calculator at q-wires.com for MEP engineers.
About Q-Bar
We don't make busbars. We engineer them.
Q-Bar started in 2015 with a simple conviction: that the best electrical infrastructure isn't imported — it's invented. A decade later, we're Egypt's pioneer busbar manufacturer. And that's the least interesting thing about us.
What matters is how we got here. Every system in our catalogue exists because we asked a question the market had stopped asking: can this be better? Why does aluminium oxidation kill so many busbar runs? Why does the joint always fail before the bar does? Why does IP68 protection stop at the surface? We answered each one with engineering, not with marketing.
Our Approach
A philosophy, not a product spec.
The result of asking "can this be better" is a product line that takes nothing for granted. Bi-metal conductor treatment — three-stage surface preparation, copper bonding, tin plating across the entire length. Joints that can't decompress, secured by Belleville washers and double-head shear bolts that physically cannot be installed wrong. IP68 submersion that achieves 70 GΩ when the standard requires 8.
Continuous Improvement
Every project becomes a lesson — what worked, what we'd refine, what the next system needs to do better.
Bold Solutions
We've gone first on enough decisions — full-length plating, integrated engineering calculators we give away free — that leadership stopped being a slogan and became habit.
Creativity Has No Postcode
We build in Egypt, we test to the same standards as Europe, and we deliver to wherever the next ambitious project happens to be. The idea that innovation belongs to certain places is one we've quietly been disproving for ten years.
The companies that specify Q-Bar aren't choosing a manufacturer. They're choosing a way of thinking about electrical infrastructure — that it should be relentlessly engineered, openly tested, and built by people who refuse to stop asking what's possible.
Our Values
Built on Principles
🎯
Quality First
Every product type-tested to international standards. No compromise on material purity, insulation integrity or dimensional tolerance.
⚡
Speed of Delivery
Local manufacturing means 4-week delivery — up to 3 months faster than European imports.
🤝
Engineering Partnership
We work with MEP contractors from design to commissioning — isometric drawings, technical support and on-site assistance.
♻️
Sustainability
Over 98% of materials are recyclable. 60%+ of raw materials sourced from the GCC region.
Certifications
Certified to International Standards
Type Tested
Accredited Laboratory
IEC 61439
Busbar Standard
IP68
Ingress Protection
IEC 60439
Busbar Standard
8kV
Insulation Type Test
Full searchable list of 322 delivered projects across 11 years now available.
Q-Bars systems are installed in some of Egypt's most prominent commercial, industrial, government and hospitality projects. Our engineering team has supported every installation — from design through commissioning.
Full underground-to-rooftop installation. Q-Bar Hybrid IP68 runs from underground trench, transitions above ground, climbs the building exterior and terminates at rooftop MEP equipment — a single continuous IP68 system including a double parallel run of 2 × 5,000A.
ProductQ-Bar Hybrid IP68
Rating2 × 5,000A (10,000A total)
RouteUnderground → Above ground → Rooftop
ConductorsBi-metal
Food Manufacturing · Giza
2024
Mars / Wrigley Egypt Factory
Q-Bar Hybrid IP68 installed on the factory sky bridge — an elevated outdoor run connecting production buildings. Bi-metal conductors provide long-term corrosion-free power distribution in a demanding industrial outdoor environment.
ClientMars/Wrigley Egypt (Multinational)
ProductQ-Bar Hybrid IP68
ApplicationSky bridge — outdoor elevated run
ConductorsBi-metal
+320
More Projects
Searchable list of every Q-Bars delivery from 2015 to 2025 — filterable by sector, year, and ampere rating.
Send us your load schedule or SLD and we'll respond with a full busbar layout, isometric drawings and commercial proposal — free of charge.
Technical Guide
Installation Guide
A complete walkthrough of the Q-Bars busbar installation process — from site survey to energization. Designed to help MEP contractors plan, install and commission with confidence.
01
Site Survey & Isometric Drawing
Our engineering team conducts a full site survey and produces a complete isometric drawing of the busbar route — free with every order.
Measurement of full busbar route from transformer/generator to distribution panels
Identification of bends, offsets, T-junctions and end feeds
Confirmation of support hanger positions
Coordination with structural drawings for sleeve penetrations
Q-Bars Tip: Always share architectural and structural drawings before ordering. This prevents costly on-site modifications.
02
Support Hanger Installation
Properly installed support hangers are critical to long-term performance. Q-Bars supplies hanger brackets as part of the complete system.
Hangers at maximum 1.5m intervals for horizontal runs
Vertical risers require spring-loaded hangers for thermal expansion
All hangers must be earthed and bonded to building steel
Use vibration-damping pads in mechanical plant rooms
03
Busbar Section Assembly
Q-Bars uses a unique maintenance-free joint design with Belleville spring washers that maintain constant contact pressure for the product's lifetime.
Align sections using the male/female joint connector
Apply specified torque using a calibrated torque wrench
Joint bolts are tin-plated to prevent corrosion
Never replace Belleville washers with standard washers
Key Differentiator: Q-Bars joints are designed for Egyptian climate — accounting for higher ambient temperatures and humidity.
04
Tap-Off Box Installation
Tap-off boxes can be installed at any point along the busbar route. On plug-in type busbars, tap-offs can be added while the busbar is live.
Plug-in tap-offs: slide into window until click — no tools needed
Bolt-on tap-offs: require de-energization
Available from 160A to 1,000A with MCCB or fused switch
Maximum 10 tap-offs per 3m on the Light range
05
Earthing & Continuity Testing
Before energization, a full earthing continuity test must be carried out on the complete busbar run.
Connect earth at feed end to the main earth bar
Verify earth continuity at each joint with a milliohm meter
Insulation resistance test at 1,000V DC — minimum 100MΩ per section
Verify phase sequence at feed end before energization
Q-Bars Tip: Our technical team is available to attend energization on-site. Contact us 48 hours before commissioning.
06
Energization & Commissioning
With all tests complete, the busbar is ready for energization. Q-Bars recommends phased energization for large installations.
Energize in sections — check temperature rise at each joint after 30 minutes
Maximum joint temperature rise: 55K above ambient
Issue as-built isometric drawing to the client
Register installation for the 5-year Q-Bars warranty
Quality Assurance · Sadat City, Egypt
In-House Testing Facility
Every busbar that leaves our Sadat City factory is electrically tested before dispatch. Insulation and dielectric tests are performed on every single unit — no sampling, no exceptions.
Beyond our own lab, the complete Q-Bars range is independently type-tested by accredited international laboratories — providing internationally recognised certificates referenced by consultants and specifiers worldwide.
IEC 61439-6
IEC 60529
IEC 60331
IEC 60695
Fully Type Tested
100
Temperature Probes
8 Tests
Per Unit
9.8 kV
Impulse Withstand Test
5 kV DC
Insulation Test Voltage
180 Min
Fire Resistance Duration
860 °C
Flame Test Temperature
70 GΩ
IP68 Post-Test Insulation
100
Thermocouple Probes
What We Test
In-House Test Suite
Every Unit
Performed on every single busbar produced
Per Batch / Range
Performed per production batch or product range
01
Temperature Rise Test
IEC 61439-6 · IEC 61439-1 Table 6
Per Batch
100 thermocouple probes · Full rated current
The busbar is loaded to its full rated current and held until thermal stability is achieved. 100 thermocouple probes are placed at every joint, conductor, casing face and terminal — recording temperature rise at every critical point simultaneously. Maximum allowed rise: 55K on conductors, 70K on external terminals. The 4000A test recorded a maximum conductor rise of 85K against a 105K copper annealing limit — well within specification.
02
DC Insulation Resistance Test
IEC 61439-1 · Test Voltage: 5000V DC / 30 sec
Every Unit
Each phase isolated · Result must exceed 8 GΩ
Each conductor is individually energized to 5000V DC while all other conductors are earthed together. The test is held for 30 seconds with no flashover or puncture permitted. Result threshold: insulation resistance must exceed 8 GΩ. Both 5kV DC and 2.5kV AC variants are performed — the DC test is the more demanding of the two.
03
AC Dielectric Withstand Test
IEC 61439-1 · Test Voltage: 2500V AC / 30 sec
Every Unit
Phase-to-phase and phase-to-earth · No puncture
An AC power-frequency voltage of 2500V RMS is applied between each phase and all remaining conductors bonded together for 30 seconds. This verifies the integrity of the insulation system under AC stress conditions. No flashover and no puncture is the acceptance criterion — any failure immediately identifies a defective section before it leaves the factory.
04
High Voltage Impulse Test
IEC 61439-1 · Test Voltage: 9.8 kV / 5 sec
Per Batch
Impulse applied per phase · Exceeds type test level
A 9.8kV impulse is applied to each conductor individually for 5 seconds — this exceeds the standard IEC type-test impulse level of 8kV, giving Q-Bars products a verified safety margin above the specification. The test confirms both the insulation materials and the joint assembly can withstand impulse voltages representative of switching and lightning transient events.
05
Contact Resistance Test
IEC 61439-6 · Micro-ohm measurement
Every Unit
Every joint measured · Milliohm verification
Joint contact resistance is measured using a micro-ohmmeter across every busbar joint — both at the factory during assembly and after the torque sequence is completed. Elevated contact resistance is the primary cause of joint overheating in service. This test confirms that every joint meets resistance limits before the busbar is dispatched.
06
Conductivity Verification
Material traceability · IEC purity standard
Per Batch
Copper purity confirmed per batch · 99.9%+
Conductor conductivity is measured and verified on every production batch using an eddy-current conductivity meter. This confirms the copper or aluminium alloy meets the purity levels declared in the technical datasheet. Q-Bars uses copper exceeding 99.9% purity — verified on every batch, not just at the material mill certificate stage.
07
Fire Resistance Test
IEC 60331 · 400V AC · 180 minutes
Per Product Range
Direct flame 860°C · Busbar live throughout
The busbar assembly is energized at 400V AC with light bulbs connected on the output. A direct flame of 860°C is applied continuously for 180 minutes. The busbar must continue supplying power throughout — no circuit interruption is permitted. After the test, the flame is extinguished and the busbar insulation resistance is re-tested to confirm structural integrity is maintained. The Q-Bar Special Resin Mix chars, self-extinguishes and does not propagate flame.
08
IP68 Submersion Test
IEC 60529 · Submerged 10 min · 5kV post-test
Per Product Range
Full submersion · Insulation re-tested at 5kV
Two busbar elbows in IP68 configuration are fully submerged under water. While submerged, a 5kV insulation resistance test is carried out — result must exceed 8GΩ with no visible flashover or deterioration to the insulation. The Q-Bars Hybrid IP68 achieved 70GΩ post-submersion — nearly 9 times the required minimum — confirming the integrity of the oxygen-free resin encapsulation system.
Testing Framework
Two Layers of Verification
Per Unit — Every Piece
Electrical Test Before Dispatch
These electrical tests are performed on every single busbar section produced — no sampling. Every piece leaving Sadat City is individually verified before packing.
Visual & dimension inspection
Labelling verification
DC insulation resistance — 5000V ★ Every unit
AC dielectric withstand — 2500V ★ Every unit
Type Tests
Accredited Type Tests
Performed per product range — not per unit. Conducted by internationally accredited independent laboratories — recognised, and referenced by consultants and specifiers worldwide.
Temperature rise test — full rated current
High voltage impulse — 9.8kV
Fire resistance — 180 min at 860°C
IP68 submersion — post-test 70 GΩ
Short circuit withstand
Glow wire test — 400°C · 120 sec
Flame retardancy — IEC 60331
Documentation
Factory Acceptance Test Report
Every Q-Bars busbar dispatched is accompanied by a signed Factory Acceptance Test (FAT) report — issued per IEC 61439 and witnessed by our engineering team. The report records every test result, the instrument used, the ambient conditions, and the name of the testing and approving engineers.
Project-specific FAT reports can be witnessed by the client's representative or a nominated third-party inspector at no additional cost.
FAT ReportPer IEC 61439 · 17-page standard format
Instruments ReferencedBT Test Run Equipment · Insulation Tester · Glow Wire Rig
Third-party witnessAvailable on request — no additional cost
Report formatHard copy + digital PDF per shipment
Quality You Can Verify
Witness the Tests Yourself
Project engineers and client representatives are welcome to witness factory testing in Sadat City. Contact us to arrange a visit or request a FAT witness for your specific order.
Get in Touch
Request a Quote
Tell us about your project. Our engineering team will respond within one business day with a full technical and commercial proposal.
Let's Power Your Project
We work directly with MEP contractors, consultants and project engineers. Send us your load schedule or single-line diagram and we'll deliver a complete busbar layout with isometric drawings.
