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Black building emergency power test BIT-1

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Status: Maintenance

Urgency: Planned
Affected services: Colocatie BIT-1
Expected impact: Main power grid BIT-1
Customer intervention required: No
Reference number: 205005

Summary:

On Tuesday, June 2nd between 5:00 hrs and 7:00 hrs we will perform a black building emergency power test at BIT-1.

Details:

During this maintenance, we will switch off the main power grid for the entire location BIT-1 for 60 minutes, in order to test our emergency power systems. During this test, engineers of BIT will be monitoring the situation on multiple locations and will, if the need should arise, intervene. We will perform a deep battery discharge test in the days leading up to the black building test. This is done because we will also run on battery before running on power generators. This discharge test will be performed on both feeds separately.

Update placed at 02/06/2026, 05:41

This maintenance has failed. The switch to emergence power was unsuccessful. Our engineers will investigate the reason for this failure and will do any repairs necessary. A new black building test will be planned and announced when it is clear what has been the reason for the failure.

Update placed at 02/06/2026, 07:02
One of the two batteries used to power the PLC (which, amongst other things, switches between mains power and the generator) in BIT-1 turned out to be faulty. As a result, the PLC lost power shortly after the mains supply was cut off and was unable to switch over to the generators. Two replacement batteries have been installed, which we had available on site. We will wait a while for these batteries to charge. At 10.00, BIT will carry out a routine power test for BIT-1. New batteries are being arranged, and as soon as they have been installed, a new black-building test for BIT-1 will be scheduled and announced.

Update placed at 02/06/2026, 10:00
A routine power test is currently being carried out on BIT-1. A new black-building test for BIT-1 is being scheduled and will be announced.

Update placed at 02/06/2026, 11:00

This routine power test was completed successfully at 11:00 hrs. A new black-building test for BIT-1 is being scheduled and will be announced.
If you have any questions regarding this maintenance, please contact the Customer Care department by phone on +31 (0)318 648 688 or by email on support@bit.nl.