Power factor improvement device:

1. This web page has hyperlinks which may transfer you to third-party website.Building Energy Code (BEC), 2012 Edition, Electrical and Mechanical Services Department, HKSAR
   
2. Supply Rules, CLP Power Hong Kong Limited.
   
3. Supply Rules, The Hongkong Electric Co., Ltd.

Harmonics filter:

1. This web page has hyperlinks which may transfer you to third-party website.Building Energy Code (BEC), 2012 Edition, Electrical and Mechanical Services Department, HKSAR
   
2. Supply Rules, CLP Power Hong Kong Limited.
   
3. Supply Rules, The Hongkong Electric Co., Ltd.
   
4. IEEE 519-1992: IEEE Recommended practices and requirements for harmonic control in electrical power systems.
   
5. BS EN 61000-3-2: Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current greater than or equal to 16 A per phase)
   
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