UL 1973：2022 major modifications
UL 1973：2022 major modifications,
UL 1973：2022 major modifications,
▍What is WERCSmart REGISTRATION?
WERCSmart is the abbreviation of World Environmental Regulatory Compliance Standard.
WERCSmart is a product registration database company developed by a US company called The Wercs. It aims to provide a supervision platform of product safety for supermarkets in US and Canada, and make product purchasing easier. In the processes of selling, transporting, storing and disposing products among retailers and registered recipients, products will face increasingly complicated challenges from federal, states or local regulation. Usually, the Safety Data Sheets (SDSs) supplied along with the products do not cover adequate data of which information shows compliance with laws and regulations. While WERCSmart transforms the product data to that conforming to laws and regulations.
▍Scope of registration products
Retailers determine the registration parameters for each supplier. Following categories shall be registered for reference. However, the list below is incomplete, so verification on registration requirement with your buyers is suggested.
◆All Chemical Containing Product
◆OTC Product and Nutritional Supplements
◆Personal Care Products
◆Battery-Driven Products
◆Products with Circuit Boards or Electronics
◆Light Bulbs
◆Cooking Oil
◆Food dispensed by Aerosol or Bag-On-Valve
▍Why MCM？
● Technical personnel support: MCM is equipped with a professional team who studies SDS laws and regulations for long. They have in-depth knowledge of the change of laws and regulations and have provided authorized SDS service for a decade.
● Closed-loop type service: MCM has professional personnel communicating with auditors from WERCSmart, ensuring smooth process of registration and verification. So far, MCM has provided WERCSmart registration service for more than 200 clients.
UL 1973：2022 was published on 25th February. This version is based on two suggestion draft issued in May and October of 2021. The modified standard expands its range, including vehicle assistant energy system (e.g. illumination and communication).
Append 7.7 Transformer: transformer for battery system shall be certificated under UL 1562 and UL 1310 or relevant standards. Low voltage can be certificated under 26.6.
Update 7.9: Protective Circuits and Control: battery system shall provide switch or breaker, the minimum of which is required to be 60V instead of 50V. Extra requirement for instruction for overcurrent fuse
Update 7.12 Cells (batteries and electrochemical capacitor): For rechargeable Li-ion cells, test under annex E is required, without considering UL 1642. Cells are required also to be analyzed if meet demand of safe design, like material and position of insulator, the coverage of anode and cathode, etc.
Append 18 Overload Under Discharge: Evaluate battery system ability with overload under discharge. There are two conditions for the test: first is in overload under discharge in which current is higher than rated maximum discharging current but lower than current of BMS overcurrent protection; the second is higher than BMS over current protection but lower than level 1 protection current.
