As a loudspeaker professional, WING CHEONG does provide speaker models complying with the following approvals/ standards

UL

UL

UL1480 is a standard introduced by Underwriters Laboratories, which provides speaker standards for fire alarm, emergency and commercial and professional use.

EN

EN

EN standard, carried out by independent standards bodies, acting at national, European and international level.

ISO9001, ISO14001

ISO9001, ISO14001

Factories of WING CHEONG are accredited for ISO9001 (Quality Management) & ISO14001 (Environmental Management System).

ULC

ULC

CAN/ULC-S541 standard, introduced by Underwriters Laboratories of Canada, is a standard for Speakers for Fire Alarm Systems.

RoHS

RoHS

The Restriction of Hazardous Substances Directive (RoHS) 2002/95/EC was adopted in February 2003 by the European Union and was effective on July 1, 2006.

UL

UL

UL1480 is a standard introduced by Underwriters Laboratories, which provides speaker standards for fire alarm, emergency and commercial and professional use. The principle sections relates to mainly audibility tests, dielectric strength tests, corrosion test and endurance tests

WING CHEONG provides 4” and 8” speaker models which comply with the latest version of UL1480* . Please chick the following links to find the models:

4” speaker models
8” speaker models
For more details, please contact us by sending email to:
sales@wingcheong.com

For more information of the standard, please browse UL official website:
http://www.ul.com/

*UL1480 revised version 2005

EN

EN

EN standard, carried out by independent standards bodies, acting at national, European and international level. The European Standards Organizations are CEN, CENELEC and ETSI. Standardization has contributed significantly to the support of the completion of the Internal Market in the context of the New Approach legislation, which refers to European standards developed by CEN, CENELEC and ETSI.

The EN54 suite of standards relates to the design and performance of items of equipment that make up fire detection and alarm system and EN54-24 is in accordance to particularly the performance of loudspeaker adopted in fire alarm system.

WING CHEONG provides set of speaker which is EN54-24 compliant, please click the following to see the specification sheet of the models.

4” speaker models
8” speaker models
For more details, please contact us by sending email to:
sales@wingcheong.com

For more information of the standard, please browse European Committee for Standardization website:
http://www.cen.eu/cenorm/homepage.htm

ISO9001, ISO14001

ISO9001, ISO14001

Factories of WING CHEONG are accredited for ISO9001 (Quality Management) & ISO14001 (Environmental Management System). The certificates are available upon request.

For more details, please contact us by sending email to:
sales@wingcheong.com

Official website of International Standard Organization:
http://www.iso.org/iso/en/ISOOnline.frontpage
 

ULC

ULC

CAN/ULC-S541 standard, introduced by Underwriters Laboratories of Canada, is a standard for Speakers for Fire Alarm Systems. The standard applies in Canada which is enforced by The Fire Commissioner of Canada.

In 2007, ULC revised the CAN/ULC-S541 standard, it is scheduled to effect from December 2008. Before the deadline, WING CHEONG is proud to announce that we take a lead in providing the latest CAN/ULC-S541 compliant speaker model. Please click the followings to see the specification sheet of the models:

4” speaker models
8” speaker models
For more details, please contact us by sending email to:
sales@wingcheong.com

For more information of the standard, please browse ULC official website:
http://www.ulc.com/
 

RoHS

RoHS

The Restriction of Hazardous Substances Directive (RoHS) 2002/95/EC was adopted in February 2003 by the European Union and was effective on July 1, 2006. RoHS restricts the use of six hazardous materials in the manufacture of various types of electronic and electrical equipment. They are:

  1. Lead
  2. Mercury
  3. Cadmium
  4. Hexavalent chromium (chromium VI or Cr6+)
  5. Polybrominated biphenyls (PBB)
  6. Polybrominated diphenyl ether (PBDE)

All speakers provided by WING CHEONG are RoHS compliant. If you want to know more about the approval, you are welcome to contact us or browse the followings:
For more details, please contact us by sending email to:
sales@wingcheong.com

RoHS homepage http://www.rohs.gov.uk
Official website of European Union: http://europa.eu