Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Nov 09, 2019 - 09:01 GMT
Dear Customer, Please be aware of the following planned maintenance window for Annual Darken Building Test at our South London Facility.
WHAT In keeping with the manufacturer's recommendations and the Pulsant planned and preventative maintenance regime, we will be carrying out scheduled Annual Darken Building Test at our South London Facility.
SERVICE IMPACT NONE - No interruption or disruption to service is expected during these essential works, however due to the level of switching that will be undertaken during executing our Darken Building Test procedure, we are issuing a courtesy “At Risk” notification to all our customers.
WHY The Annual Darken Building Test forms part of our stringent maintenance regime and this is to ensure all infrastructure works correctly in the event of a full loss of mains power to site. To do this we will be working with our 3rd party contractors and the electricity company to isolate the mains power to the site and perform essential testing of our HV and LV infrastructure. During this period, it will be necessary to run the site on generators. Pulsant will follow our Darken Building Test procedure, which will isolate the incoming utility supply to site The testing will be completed by Pulsant staff and a number of specialised 3rd party contractors.
The following works will be carried out;- 1. Isolation of utility mains incomer to site. 2. Monitor failover to Generator and ensure supporting site (Power to Racks will remain UPS protected throughout). 3. Once testing period completed the power will be restored in a controlled manner. 5. Reinstatement and check that all services back to a normal state.
Monitoring will continue for a further 1hr post restoration of utility power to ensure there are no outstanding issues.
All diesel supplies to the site have been checked and confirmed adequate supplies, reserve supplies are on standby. Once works have been completed, the fuel supplies will be replenished accordingly. We have provisioned a maintenance window of up to 8 hours to allow us an adequate time window to complete all the necessary tests. All personnel will remain on-site during this maintenance window and for a period of up to 1-hour post the maintenance being completed window.
Works are expected to be non-service affecting as customers will remain on UPS protected supplies throughout until all testing has been completed. This maintenance does involve changes to power source to the site, hence an At Risk notification is being sent out.
Pulsant has been preparing extensively for this scheduled Darken Building Test. We will have a number of different contractors and Pulsant personnel on site including expert contractors to support our Generators, UPS devices, electrical infrastructure and most importantly Pulsant network and site support staff. We have worked with the electricity utility supplier to mitigate risk as far as possible, below is the planned approach with regards to completing all necessary works and undertaking this Annual Darken Building Test
WHEN Pulsant confirm that the maintenance window is noted below and the associated At Risk period:
Saturday 9th November 2019 commencing at 09.00 GMT and completed by Saturday 9th November 2019 by 17.00 GMT.
To mitigate risk and impact, Pulsant have scheduled for these works to be carried out during the working day.
The “At Risk” window will be kept to an absolute minimum and the site will have utility mains power restored and resuming full site protection at the earliest opportunity.
Please accept our sincere apologies for any inconvenience this may cause.