GlobalSpec has asked its users about the latest design trends and features related to Busbars and Busways. They have also shared their product applications and tips on how to buy and use these products.
See the entire survey


Q:
What would your design or feature "wish list" be for this product?
30 answers
Answers:
For medium voltage isophase and nonsegregated buses people should use common HV sense. No air gaps in insulation, no gaps between HV conductor and support insulators, use dry air to get rid of water and ozone.
~Igor B, Lead Project Engineer, Minnetonka, MN
I would like to see Bus Bars and Bus ways to replace cables in high rise buildings as feeders to clients for power intake. This will make the installation more safe and neat.
~Nagendra Mathur M, Engineering Consultant, Kolkata, India

Durable and appropriate for harsh environments.  Prevent ingress of insects.

~See Fong H, Engineer, Singapore, Singapore

Conductors shall be sleeved, shall be spaced apart by at least 8 mm, inter-conductor spacing and conductors to outer single -piece extruded Aluminium (preferred) encloser filled up with electrically, mechanically and thermally high-quality, self-setting resin-filler-hardener mix.

~Balakrishnan Nair K, General Manager, Sharjah, United Arab Emirates
Some sort of high-tech cooling system to reduce copper content.
~KV SRIDHAR, Engineering Consultant, BANGALORE, INDIA
Choose more aluminium, have better connection ability to generator bushings, more acceptance of Forced Air cooled, clearer specifications about earth quake withstand.
~MICHEL G, Engineering Consultant, PARIS, FRANCE

Standardisation of busbar characteristics and design should be adopted in all relevant standards so that a common and comprehensive quality product is achieved and used in the system.

~Edwin P, General Manager

Can handle above 10 000 Amps/ 20 V in pulsated power without hysteresis, cheap material as aluminum, yet more resistant to corrosion (sulphates, alkaline environment)

~Engineering, Other, San Luis Potosi, Mexico

Presently, copper/copper alloy and aluminium bars are used for many LV panels, but there should be new commercially viable and cost effective technologies developed for busbars.

~Shrimant S, Marketing/Sales, Bangalore, India

Busbar systems should have enough capacity to withstand present load, some additional capacity for expansion and most important to withstand short circuit current (dynamic stress)

~Manindra Nath Datta D, Head of Electrical Engineering wing of Haldia Dock Complex, Kolkata Port Trust., Haldia, India

Epoxy resin coating insulation; Aluminum housing; Copper cross section area; Low voltage drop; low resistant joints

~Deepak A, Quality Control, Ras Al Khaima, U.A.E

Proper IP68 protection in an all metal housing to overcome the weight problem associated with cast resin systems.

~David C, General Management, Camberley, UK
Lower price, best performance in terms of short circuit current rating, current capacity and voltage withstand.
~Herbert M, Engineer, Santiago, Chile

Materials which can replace copper with better current density and at the same time be economical.

~suresh S, General Management, chennai, india

A: Introduction of Low Cost Copper Bus bars. B: Bus bars for Oil Gas Market. C: Aluminum Bus bars.

~Vilas P, General Management, Ras Al Khaima, UAE
-Light -High thermal and electrical conductibility -Good insulation possibility
~Engineering, Design, sarralbe, France

Less weight for same amp rating. Corrosion resistant for harsh environments

~Project Manager
Highly conforming dielectric that snap cures yet retains toughness.
~Bruce O, Design Engineer, Northfield, MN
200% neutral, Best insulation materials, Flexibility
~Ramesh M, Marketing/Sales, chennai, India
Easy to install, prefabricated for installation
~bright charakupa C, Engineering Consultant, gaborone, IL

Compact and low heat loss; less weight

~Engineering, Design, Bangalore, India

Low cost; built-in circuit protection

~Marketing/Sales, Basildon, United Kingdom
Connection: feeder end section.
~Johnny K, Builder/Contractor, Vietnam
Modular design & Compact sizes
~Sunil P, Marketing/Sales, Pune, India

Indoor metal clad switchgear

~Research & Development, salem, India
Exothermic joints
~Mike L, Research & Development, Lockhart, TX
More flexibility
~dennis C, General Management, singapore, singapore
Compact design
~shetty U, Manufacturer, nashik, india
Siemens, ABB
~K B, Engineer, kakinada, India
Compactness
~Veerabhadra S, Design Engineer, bangalore, India

Top
Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of a busbar or busway?
18 answers
Answers:

Should avoid loose joints in busbars; cleaning of bus insulators to avoid tracing and failure of busbars resulting in shutdown of plant facilities.

~Manindra Nath Datta D, Head of Electrical Engineering wing of Haldia Dock Complex, Kolkata Port Trust., Haldia, India

If you have a non-standard application be prepared to design it yourself. Learn appropriate codes and conduct FMEA prior to settling on a design. Understand system impedance and compensate for resonance issues.

~Greg B, Research & Development, Oklahoma City, OK

Use bus bars at only 60 percent of the bus bars designed load.  You can also improve the connection quality at a very long time to coat chromium oxide on the copper bus bars ... it can save the bus bars from corrosive and dusty environments.

~zubair M, Engineer, lahore, pakistan
Avoid installations through or in close proximity to kitchen areas or other potentially moist/flood prone areas!
~Engineering, Other, Williamsburg, VA

Be careful of out of order 'phasing' problem when connecting to source (Transformer) or Load side (ACB/Breakers). Very inflexible at that aspect.

~Johnny K, Builder/Contractor, Vietnam

Ensure the application is suitable for the type of busbar selected ie.  if outdoor feeder is busbar tested to IP68.

~David C, General Management, Camberley, UK

Ensure the number and spacing of supports used during its Type Test for Short-Time Current Rating are provided in Service.  Also, purity of the conductor material. Measures taken for Ingress Protection during IP Type Test are ensures in Batch supply also. Quality of Joint - contact area , contact pressure and uniformity of distribution of the available force over the available contact area. Thermal and Electrical strength and dependability of Insulation provided etc. shall be closely verified and satisfied, even if the Mandatory Type Tests are passed.

~Balakrishnan Nair K, General Manager, Sharjah, United Arab Emirates
A-Brand Image is created over years of research, do not settle with second best for price.
~Vilas P, General Management, Ras Al Khaima, UAE
Bus bar spacing and bus supporting insulator to be checked and earthing of busbar.
~K B, Engineer, kakinada, India

Stick to standards; know your short circuit current; ensure adequate insulation

~bright charakupa C, Engineering Consultant, gaborone, IL
Too short Intensity value with ambient temperature, vibration....
~Marketing/Sales

Check purity of copper & mill certificates for copper conductors.

~Deepak A, Quality Control, Ras Al Khaima, U.A.E
Don't use them in applications with high impact or vibration.
~See Fong H, Engineer, Singapore, Singapore

Follow CDA handbook for selection and usage of copper.

~Edwin P, General Manager
Do not ignore the temperature rise calculations.
~Sunil P, Marketing/Sales, Pune, India
Select the smallest bar that will do the job.
~Jonathan B, Marketing/Sales, Richmond, IL
Inadequate cabling area is a usual mistake.
~KV SRIDHAR, Engineering Consultant, BANGALORE, INDIA
Check the layout & safety factors.
~Veerabhadra S, Design Engineer, bangalore, India

Top

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