Uninterruptible Power Supplies PowerWAVE 1000, Руководство пользователя

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UPS725-02-02 PowerWave 1000 (4.5 - 10 kVA) User Manual UK Dated 13/03/15
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3: Installation and Set-up
3.5 Electrical Wiring
In addition to the UPS input and output power cables, the UPS requires the following cables to be connected prior to
commissioning (depending on the installed options and UPS system configuration):
• Battery connection cable – required for all modules.
• Parallel control bus cables – required for parallel system only.
• Emergency power off (EPO) – optional for all systems (see page 15).
• Communications options – optional for all systems (see Chapter 8).
General cabling notes
In order to minimise any problems due to noise interference always use separate cable runs for the various power cables
and control cables. In particular, if the control cables have to run parallel to the power cables keep a separation distance of
20 cm if possible. Do not attach the control cables to the power cable looms using cable ties, spiral-wrap or any other
means. Where the control cables have to cross the power cables make best effort to ensure they do so at an angle of 90º.
3.5.1 Power cables
Depending on the model variant, the UPS input and output power cables can be connected either by means of a plug/
socket connector or hard-wired to a terminal block. If a plug/socket arrangement is used then a ready cabled plug will be
supplied with the UPS equipment. If a terminal block connection is used then the provision of all external cables and fuses
(or circuit breakers) used to connect the UPS input and output terminals to their respective distribution panels is the
responsibility of the customer. All cables and fuses should be rated according to the maximum UPS system rating in
accordance with local regulations.
For guidance:
• Fuse and cable recommendations must be to IEC 60950-1:2001.
• All external fuses, isolators and power cables must be rated and installed in accordance with the prescribed IEC
standards or local regulation – e.g. BS7671:2008.
Parallel system power cable considerations
In order to obtain the optimum balanced conditions, when cabling a parallel module system you should ensure that the
input cables to each module are of equal length and not longer than 25m. The output cables from all modules to the load
distribution panel should similarly be of equal lengths and a maximum of 25m.