Emergency Lift Power Systems | PSI

Carina House East, Sunrise Parkway,
Milton Keynes, MK14 6LS, United Kingdom

Power to a dedicated evacuation lift in an emergency

The new Series 5 ELPS product is a “Black Box”, and the point of use for the power system is to feed VVVF lift hoisting or hydraulic systems. As required in the Disability Discrimination Act of 1995, the company offers a power solution for meeting the emergency power requirements of Evacuation Lifts and the Regulatory Reform (Fire Safety) Order of 2005 and BS9999. The Power Systems International team works closely with Lift manufacturers, Local Authority Fire Safety Officers, Consulting Engineers and Architects to determine the best cost-effective means to deliver power “on demand” to a dedicated evacuation lift in an emergency when normal operations are halted.

Make an enquiry
Split Test

ELPS Size We Offer

The ELPS is available in eight power capacities of 10, 15, 20, 30, 40, 60, 80 and 100kVA, though other sizes can be supplied upon request. All are suitable for use with mains power of 50Hz, 400V three phase input and output with the output having a protective earth.

The inverter is designed to accommodate the unpredictable load of most passenger lifts with weights up to 1,600kg.

Our team will work with you to determine the correct sizing based on how many landing stops and starts per hour, how many passengers in the lift car in the upward elevation and on the descending journey. How long the lift will remain on a landing with the doors held open to allow disabled persons in wheel chairs will be accommodated.

The overall aim is to ensure that the ELPS can handle its minimum required evacuation duty of 10 upward and 10 downward journeys over the required number of landings in a period of 60 minutes. Longer runs are available upon request.

Benefits of an ELPS:
  • Installation is quick and simple and therefore the cable runs are short and less exposed to the risk of theft, vandalism or sabotage.
  • The ELPS is supplied with a length of flexible cable for input and output terminated with a CEE17 plug and socket.
  • Our team will work with you to determine the correct sizing custom to your situation.

ELPS Location Requirements:

Within our scope of supply:

– We will fit the battery blocks into the battery enclosure and make off the inter cell cables and connectors, inter tier cables and connectors, cables from the battery terminals to the ELPS-15T(BASE) terminals.
– Remote wall mounting key operated ELPS-15T(BASE) control switch fitted with integral LED indication to show the lift is operating from the Standby Emergency Power Supply.
– Wall mounting external wrap around bypass unit fitted with input and output connectors.

NOT in our scope of supply:

The following site work is not in our scope of supply and should be completed by other suitably qualified contractors/ subcontractors.

– Installation of the remote control cable between the emergency lift and to the terminals on the rear of the ELPS-15T(BASE)system enclosure.
– Installation of the cable from the terminals of the ELPS-15T(BASE) system and connect to an indicator light “Emergency supply” within the EPS remote control switch unit. This indicates to the lift operator the ELPS-15T(BASE) is working.
– All power cables and electrical installation work

How the ELPS Works
  • When the key is turned it starts the power to the lift much as turning the key in the car starts the engine.
  • The electrical contractor will need to install a suitable 5 cores signal cable from the ELPS to the remote control point.
  • The lift manufacturer will also need to take this signal into the lift control panel for the lift operator to observe the "on emergency power" status alarm.
  • The ELPS can be also be provided with an optional automatic control feature that allows the inverter to start upon sensing the loss of mains power (or other source) at the input terminals of the ELPS. A signal will be provided to indicate the inverter is operating.

Useful information

Recent Enhancements

In moving from the Series 4 to the series 5, we have incorporated the following enhancements:

– Larger wheels for final placement, and for ease of moving during maintenance;

– More intuitive menu commands

– Integrated battery monitoring

– Increase ability to handle large in rush currents

– RS232 / SNMP capability

– Reduce size, one third smaller than the
Series 4

– Reduced weight, one third lighter than the
Series 4

Important Information

The end user must ensure that the unit is regularly maintained and tested fully to ensure that the unit meets the specifications outlined above.

The unit must also be kept indoors in a relatively dust free environment and away from water.

It is important to minimize the cable lengths to reduce the risks of damage. The advantage of the ELPS unit is it can be located close to the source of power feeding the lift or even to fans needed for a safe refuge area.

Benefits of an ELPS over a standard UPS

A standard UPS will pass all of the current through, converting from AC to DC and then back from DC to AC.

In so doing you can typically expect 10% losses (ours is 2%). At 15kva or 12kw, each hour costs 14pence per KWh.

Effectively, based on 24 hours a day, for 7 days and for 52 weeks a year, such as a typical office, there are savings of up
to £1,174.12 per annum
. Higher savings would accrue if the KWh rates are higher, and lower with lower usage.

What sectors can benefit from Emergency Lift Power Systems?

Operating internationally, with customers from Japan to the USA, we regularly work with customers who are leaders in their fields. Our focus is always to provide the right solution for our client’s, meaning location is less of a concern for us.

Downloads & Resources

PDF Icon

Connection Diagram

Filetype : pdf
Filesize : 80 KB
Uploaded : 26/07/2022
PDF Icon

Product Diagram

Filetype : pdf
Filesize : 2 MB
Uploaded : 26/07/2022
PDF Icon

Product Diagram

Filetype : pdf
Filesize : 1 MB
Uploaded : 26/07/2022
We’re proud to have worked with...
US Air Force Logo image
Henley Business School Logo image
Eon Logo image
BAE Systems Logo image
Natural History Museum Logo image
Babcock Logo image
Dubal Logo image
Seadrill Logo image
Siemens Logo image
KNPC Logo image