How to connect the power to 100 GPU servers that can be installed in just 2 hours? ”
This is the "life and death speed" left to the electrical manager during the expansion of an Internet factory. The traditional cabinet+cable solution requires power outage, dismantling of the bridge frame, and re pressing of the copper nose, which takes at least two days; After adopting the busbar trunking, the entire process was electrified and connected in 2 hours, and the PUE was reduced by 0.02.
The data center - a scenario that is extremely picky about "electricity" - is transforming bus ducts from "optional" to "standard". Today, we will break down the four essential needs behind it.
1、 Urgent 1: 0.1 second fault location, change "interrupt" to "flashing"
The tolerance of data centers for electricity is only in the millisecond range:
Level interruption time business impact
Class A<10ms no sensation
Class B<100ms minor retransmission
Class C>1s transaction failure, downtime
Cable rack cabinet solution: The fault needs to be checked one by one with a shaking table, and it takes an average of 30-60 minutes to locate it.
Intelligent busbar trunking solution: Each plug-in box is equipped with a TMU monitoring module, which samples voltage, current, temperature, and power at 1kHz. Any abnormalities are reported to the backend within 0.1 seconds and accurately located to the centimeter level.
Real case: Poor contact of copper bars resulted in abnormal temperature rise, and the system pushed a text message within 3 seconds. Before the operation and maintenance arrived, the redundant circuit was automatically switched, and the business had zero packet loss.
2、 Urgent need 2: Live expansion, turning 'shutdown' into 'gig'
On average, data centers need to expand once every 18 months, and traditional cable expansion has four steps:
Power outage → 2. Bridge dismantling → 3 Cable compression → 4 Retest again
The entire process lasted 4-8 hours, during which thousands of servers were forced to shut down, resulting in a direct breach of SLA.
Bus duct expansion only requires three steps:
Align the plug-in box with the track → 2 Insert with a click → 3 Tighten the two torque bolts
The entire process lasts for 10 minutes without stopping the server, truly achieving the decoupling of IT and power.
3、 Requirement 3: Energy saving in both horizontal and vertical directions, reducing PUE by another 0.02
PUE=total energy consumption of data center/IT equipment energy consumption. For every 0.01 decrease, 10000 cabinets save 5 million yuan in annual electricity bills.
How to "cut" 0.02 out of the bus duct?
Horizontally: The cross-sectional area of the copper bar is 8% lower than that of the cable, resulting in a 15% reduction in line loss
Vertical: The shell also serves as PE to eliminate PE line impedance; The intelligent module reduces the phase imbalance to<2%, and the copper loss of the transformer is further reduced by 3%
4、 Requirement 4: Space equals cost, saving 1 square meter equals saving 20000 yuan
The civil construction cost of a single cabinet in a certain computer room is 20000 yuan/square meter, and the column head cabinet and cable tray need to occupy a 0.8 × 1.2m channel, which is equivalent to 24000 yuan/cabinet "waste".
The bus duct is lifted and installed on top, and the channel is given way to the server. With the same area, an additional 6 cabinets can be placed, resulting in a 12% increase in ROI.
5、 Selection Tips: Choose Bus Ducts for Data Centers and Look at These Four Tables
Current carrying capacity meter
Single cabinet 6-8kW has become mainstream, and the 1600A busbar can accommodate 250 6kW cabinets, leaving 50% margin for plug and play without overloading.
Monitoring granularity table
Comparison of mainstream brands:
We: 1kHz sampling, 0.1 second alarm
Brand A: 1 second sampling, 30 second reporting
Brand B: No monitoring, can only be manually inspected
Hot swappable table
Check the insertion and extraction torque: we ≤ 8Nm, completed in 10 seconds with one hand; Some imported brands require 20Nm, which requires two people and a wrench.
Flame retardant rating table
According to the UL94/V0+950 ℃ fire resistance 90 minute dual certification, the power will not be cut off during a fire, and sufficient escape windows will be provided for the fire protection system.
7、 Bus duct is the "electrical backbone" of data centers
From 'invisible' to 'inseparable', the bus duct uses three labels of intelligence, elasticity, and green to transform the power system from a cost center to a competitive center.
In this silent revolution, our bus ducts are using their hard power of 0.1 second fault location, 10 minute hot plugging, and 30-year lifespan, making every kilowatt hour of electricity clear, manageable, and cost-effective.
