With regard to compliance documentation requirement for a fan motor in a commercial installation involving a custom built (in NZ) heat recovery ventilation system, what level of risk applies to the fan and, if not low risk, what are the system manufacturers obligations with regard to providing information and compliance documentation for the fan.
In this case it’s a 230V, 1.95A Weiguang YWF-4E-500-S-137/35-G axial plate fan and the heat recovery system is on an exhaust system outlet from a hospital.
The system manufacturer says they can’t provide an SDoC for it or anything from the fan manufacturer that states the standards they’re manufactured to!
They can’t even find any suitable alternative fans that do have an SDoC or other standards compliance docs for any of the required IEC or AUS standards (if medium risk)
I guess this is all moot if the installation is deemed to be low risk.
I can’t see any proper description in the medium risk article register so maybe this situation could be deemed low risk?
SDoC Requirements and Levels of Risk
Re: SDoC Requirements and Levels of Risk
Only declared medium risk articles are required to have an SDoC {ESR 83].
DMRAs are generally fittings associated with domestic-type installations.
Fittings that are not Gazzetted as DMRA, DHRAs or prohibited, just have to be electrically safe [ESR 80]
These requirements all apply to supplying / selling within NZ, and have SFA to do with installing the fittings
other than that
a) installers have to declare ( CoC / ESC) that what they have installed is electrically safe & is compliant with ESRs; and
b) IF an SDoC is available, it can be used as evidence that the product is electrically safe (i.e., bum-cover for the installer).
As installers, we have to accept that such bum-cover is not always available.
In fact, outside of domestic; very seldom available.
SDoCs have nothing to do with risk levels for PEW.
PEW risk levels are set in ESR 6A;
and low risk applies only to maintenance of existing installations, not to installing a new system.
But regardless of whether maintaining (eg replacement motor) or installing new;
you'll still have to declare that what you connect to supply is safe
DMRAs are generally fittings associated with domestic-type installations.
Fittings that are not Gazzetted as DMRA, DHRAs or prohibited, just have to be electrically safe [ESR 80]
These requirements all apply to supplying / selling within NZ, and have SFA to do with installing the fittings
other than that
a) installers have to declare ( CoC / ESC) that what they have installed is electrically safe & is compliant with ESRs; and
b) IF an SDoC is available, it can be used as evidence that the product is electrically safe (i.e., bum-cover for the installer).
As installers, we have to accept that such bum-cover is not always available.
In fact, outside of domestic; very seldom available.
SDoCs have nothing to do with risk levels for PEW.
PEW risk levels are set in ESR 6A;
and low risk applies only to maintenance of existing installations, not to installing a new system.
But regardless of whether maintaining (eg replacement motor) or installing new;
you'll still have to declare that what you connect to supply is safe
- Rating: 16.67%