IEC 62040-3-2021 pdf free

IEC 62040-3-2021 pdf free.Uninterruptible power systems (UPS) – Part 3: Method of specifying the performance and test requirements.
The temperature and relative humidity ranges above are verified in accordance with
IEC TR 60721-4-3 when performed as described in 6.5.3.
NOTE A requirement for the ups io perform when operating beyond the ambient ranges Is considered an unusual
condition. See 4.3.
4.2.2.2 Altitude
A UPS conforming to this document shall be designed to operate as rated from sea-level up to and including 1 000 m above sea level.
4.2.3 Storage and transportation
UPS equipment conforming to this document shall accept stationary storage within a building and shall be transportable in its manufacturer provided shipping packaging by a pressurised aircraft, by ship or by truck, within the following ambient ranges:
• temperature —25 °C to +55 C;
• relative humidity 10 % to 95 % (non-condensing).
The temperature and relative humidity ranges above are verified as described in 6.5.2.
Packaging not designed for wet (condensing) ambient conditions shall be marked by warning labels.
Shock and free-fall withstand requirements are verified when performed as described in 6.5.1.
Unless otherwise declared by the UPS manufacturer, UPS equipment conforming to this document shall not be stored or transported at an altitude with equivalent air pressure lower than 70 kPa.
NOTE I The air pressure at an altitude of 3 000 m above sea level is approximately 70 kPa.
NOTE 2 Certain energy storage devices require other storage and transportation conditions: for example for a battery, the duration of high or low ambient temperature can affect the battery life. The energy storage device manufacturer typically provides instructions for battery transportation, storage and recharging.
4.3 Unusual conditions
4.3.1 General
4.3 lists conditions that, subject to an agreement between the manufacturer and the purchaser, may require special design and/or special protection features. The purchaser shall identify any requirements that deviate from the normal conditions in 4.2.
4.3.2 Operation
Unusual operating conditions to be identified include the following:
pollution degree in excess of 2 (see Note 1 in 4.1);
temperature and relative humidity conditions exceeding the ranges listed in 4.2.2.1;
alfifude conditions exceeding those listed in 4.2.2.2.IEC 62040-3 pdf download.