Island Time 1,294 Posted March 17 Share Posted March 17 From the NZ standards site; AS/NZS 3004.2:2014 Current Date published: 27/06/14 So, no, there are no current standards requiring IEC compliance. The current standard says "Lead-acid storage batteries, alkaline and lithium ion storage batteries shall not be placed in a common cabinet or container or in close vicinity to each other." "2.9.3 Additional requirements for lithium ion batteries The following additional requirements apply: (a) Lithium ion batteries shall be installed in locations that ensure the battery manufacturer’s specified operating temperature limits cannot be exceeded and are appropriate for the IP rating of the battery and its management system. (b) Each lithium ion battery shall be provided with a battery management safety system (BMS) either integrated into a battery pack or as a separate component located adjacent to the battery. The BMS shall continuously monitor the voltage and temperature of each cell in the battery. (c) All charging sources shall be automatically disconnected by the BMS when voltage exceeds the manufacturer’s recommended maximum. (d) All connected load shall be automatically disconnected by the BMS when the voltage falls below the manufacturer’s recommended minimum. (e) The battery shall be automatically disconnected by the BMS from all connected load and all charging sources when temperature exceeds the manufacturer’s specified maximum. (f) The BMS shall provide an audible and visual alarm at the normal vessel operating position before a disconnection event occurs. (g) Lithium ion battery ventilation air flows shall be in accordance with the manufacturer’s requirements. If specific air flow data is not provided the requirements of Clauses 2.9.2.2 or 2.9.2.3 shall be applied. NOTE: Care must be exercised when disabling charging sources to avoid the risk of elevated voltages that may damage the equipment. Quote Link to post Share on other sites
Island Time 1,294 Posted March 17 Share Posted March 17 Also note that the standard is NOT retrospective, despite what some inspectors are trying to apply for EWOF's.... Its a shambles, and has been for years, with the electrical registration board exonerating themselves and trying to make the inspectors liable for any issues that come up in applying their standards. It's not surprising that the inspectors are cautious. Yes, for any new vessels its going to get difficult.... 1 1 Quote Link to post Share on other sites
grant 44 Posted March 17 Share Posted March 17 16 hours ago, Island Time said: From the NZ standards site; AS/NZS 3004.2:2014 Current Date published: 27/06/14 So, no, there are no current standards requiring IEC compliance. The current standard says "Lead-acid storage batteries, alkaline and lithium ion storage batteries shall not be placed in a common cabinet or container or in close vicinity to each other." "2.9.3 Additional requirements for lithium ion batteries The following additional requirements apply: (a) Lithium ion batteries shall be installed in locations that ensure the battery manufacturer’s specified operating temperature limits cannot be exceeded and are appropriate for the IP rating of the battery and its management system. (b) Each lithium ion battery shall be provided with a battery management safety system (BMS) either integrated into a battery pack or as a separate component located adjacent to the battery. The BMS shall continuously monitor the voltage and temperature of each cell in the battery. (c) All charging sources shall be automatically disconnected by the BMS when voltage exceeds the manufacturer’s recommended maximum. (d) All connected load shall be automatically disconnected by the BMS when the voltage falls below the manufacturer’s recommended minimum. (e) The battery shall be automatically disconnected by the BMS from all connected load and all charging sources when temperature exceeds the manufacturer’s specified maximum. (f) The BMS shall provide an audible and visual alarm at the normal vessel operating position before a disconnection event occurs. (g) Lithium ion battery ventilation air flows shall be in accordance with the manufacturer’s requirements. If specific air flow data is not provided the requirements of Clauses 2.9.2.2 or 2.9.2.3 shall be applied. NOTE: Care must be exercised when disabling charging sources to avoid the risk of elevated voltages that may damage the equipment. understand its not retrospective so not relevant, but reading that, if new, my two gel lead acids next to each other wouldn't be compliant? seems a bit OTT Quote Link to post Share on other sites
motorb 45 Posted March 17 Share Posted March 17 22 minutes ago, grant said: understand its not retrospective so not relevant, but reading that, if new, my two gel lead acids next to each other wouldn't be compliant? seems a bit OTT Yeah stuff like that is why I don't take many of these standards too seriously. There are risks associated with lead acid, (namely wet/flooded cells that can produce hydrogen gas), but having them compartmentalised is neither necessary nor standard practice. Edit: The omission of that hazard is actually pretty telling.... Quote Link to post Share on other sites
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