VMtec Busbar Trunking System

General

Busbar Trunking System for electrical distribution is an alternative to cumbersome conventional cable distribution system.
Busbar Trunking System has the advantage of expansions, Changes, replacement and reusing capability in the future.
Loads can be fed from Plug-in Box unlike cables, where each floor/ machine is to be fed separately from the main switchboard.
Repositioning of distribution points is simpler. Installation time is much shorter then cable system. This provides low installation and manpower costs and help for better time management.
Busbar Trunking systems have a modern and aesthetic look.
System is maintenance free.

Close proximity of busbars reduces inductive reactance, resistance, impedance and voltage drop is much lower than cable & any other busbar system.
Specially designed housing act as a heat sink to yield improved thermal characteristic, high mechanical and short circuit strength.
Busbar System has no chimney effect, hence provide a better resistance to the spread of fire. Automatic polarity is maintained during installation.
System can be mounted edgewise OR flat wise horizontally or vertically in any direction with all kinds of bends and tees etc.
The compact structure and steel housing allows much lower electromagnetic field around busbar system then cable.Busbars does not generate electromagnetic.

Compliance of Standard	IEC 60439 (1&2) & IS 8623 (1&2)
Independent Certification Authority	VMtec - Germany
Busbar Arrangement	Sandwich Type
Busbar Ratings	Copper 630 ~ 6600 Ð Aluminium 400 ~ 5000A
Busbar Configuration	3 Phase+50% Internal Earth 3 Phase+100% Neutral+50% Internal Earth 3 Phase+200% Neutral+50% Internal Earth 3 Phase+100%Neutral+100% Isolated Earth +50%Internal Earth
Rated Operational Voltage (Ue)	1000 V, AC
Rated Insulation Voltage (Ui)	1000 V, AC
Rated Dielectric Voltage	3.5 kV r.m.s
Rated Impulse Withstand Voltage (Uimp)	12 kV (1.2/50 Î¼s)
Plug -in-Box	32~800 A
Rated Frequency	50 Hz / 60 Hz
Enclosure Material	1.6mm G.I
Surface Coating on Enclosure	Epoxy polyster powder coated (RAL-7032)
Busbar Material (Phase/Neutral)	Copper (full round edge ),99.9% pure ETP grade Aluminium (full round edge), 99.5% pure.
Busbar Material (Internal Earth)	G.I 1.5mm / Copper 1.5 mm.
Busbar Material (External Earth)	Copper / Aluminium
Busbar Insulation	Multi layer Class- 'F' Insulation (Polyster +Mica)
Degree of Protection	IP 54
For feeder bustrunking	IP55 / IP65 / IP67

For tapping Power from Main Line through Plug-in-Boxes.
Plug-in point shown are indicative only.
Standard & Max. Length: 3000mm.
Rating and number of Plug-in -Point shall
be as per the site requirement (up to 5 Nos
max on either side).

Two type of Plug-in Points(PIP): (32~400A)
& (500 ~800A) can be provided as per
requirement.

Joint can be fitted / removed in installed condition without removal of section.
Heavy duty disc spring used on both sides for unifrom distribution of pressure.
Joint can be tightened easily with help of spanner on nut side only.(spanner not required on bolt head side)
Shear off nut ensure tightness of joint at desired torque and eliminates the need of torque wrench during installation.
Tamper proof cap over shear off nut prevents opening of nut after achieving desired torque.
Nut can only be opened after breaking the cap.

To charge bustrunking through cables from one end of bustrunking.

End feed is available with sufficient space for direct connection through lugs and bolts. MCCB,SFU, lsolators, fuse holders etc. can be fitted in End Feed as per requirement.
300 mm length of bustrunking is integrally fitted (measured with bustrunking) along with End Feed as standard practice so that joint between End Feed and bustrunking is exactly same as joint of two normal bustrunking lengths.
Undrilled cable gland plate is provided at bottom for multiple cable entry. End Cover
It is used to terminate and to protect the end of plug-in bustrunking (Rising mains run.)
It can be remove easily for extension of bustrunking

Plug in box enclosure is made from G.I with side hinged door.

Plug in contacts are made out of silver plated copper with spring steel backup pressure clips for ensuring uniform pressure and low contact resistance .
For cables entry, provision of gland plates are provided on both sides and bottom of Plug in Box.
Earth contact of Plug-in boxes makes first & breaks last.
Plug in box are suitable for MCCB/SFUâ€™s with rotary handle and door interlocking.
Plug in boxes are available with Interlocking with bustrunking to ensure "plug-in" and "Plug-Out" possible only in "Off" Condition.
Silver Plated contacts are properly shrouded / isolated.
Plug in box up to 400 A are compatible to all ratings of Bustrunking with 400 A Plug-in-points
Plug in box from 500A to 800 A are compatible to all ratings of Bustrunking with 800 A plug in points.
Plug in boxes can only be fitted on to the Bustrunking with corrected polarity i.e. ENRYBE.