Energy data and energy for data centers - now and in the future: SIVACON 8PS LData busbar trunking system

Overview

LData runs as a busbar line over the racks with plug-in tap-off units. The units can be fitted anywhere along the run except the terminal point, without a fixed grid, for example every 60 cm to suit rack width. A two-stage mounting allows safe live insertion, and an option caps losses below the IEC limits.

The system data: rated current 1,000-2,500 A, Ue 600 V AC, IP21, aluminium conductors, design-verified to IEC 61439-1/-6. The 1,000-2,250 A versions are rated Ipk 84 kA and Icw (1 s) 40 kA, with 2,500 A on request. Fire load is 3.60-4.38 kWh/m by rating, maximum support distance 3 m, weight 20-31 kg/m.

At 415 V the cubic tap-off units go up to 250 A and the L-shaped ones up to 125 A. Tap-off metering data can be sent by powerline communication over the busbar with no extra control wiring, which supports ISO 50001 energy management.

This is a product brochure, so it supplies values and dimension tables rather than a design method. The check that matters in use is comparing the busway's Icw/Ipk with the prospective fault level at the feeding board.

Key points

1. Rated currents 1,000-2,500 A, Ue 600 V AC, IP21, aluminium conductors, design-verified to IEC 61439-1/-6.
2. Ipk 84 kA and Icw (1 s) 40 kA for the 1,000-2,250 A versions; 2,500 A on request.
3. Fire load 3.60-4.38 kWh/m, maximum support distance 3 m, weight 20-31 kg/m.
4. Tap-off units fit anywhere except the terminal point without a fixed grid (e.g. every 60 cm to suit rack width).
5. At 415 V cubic units go up to 250 A, L-shaped up to 125 A.
6. Tap-off metering data travels by powerline over the busbar with no extra control wiring, supporting ISO 50001.

Using it in design

• Check busway Icw/Ipk against the prospective fault level at the feeding board.
• Compute fire load per metre as an input to the fire strategy.
• Let the rack-row layout place tap-offs at rack pitch.
• Provide per-tap-off energy metering points for PUE and rack billing.

Who should read it

Electrical designers selecting rack-feed busway for high-density data halls.

Related standards

• IEC 61439-1
• IEC 61439-6
• ISO 50001

Publication details

Authors

Siemens

Publisher

Siemens

Year

2020

Document number

SIDS-B10022-00

Document language

English

Source type

Manufacturer

Access

Free to read

Licence

Copyright retained; citation only — the publisher’s terms apply to the original document

Citation