UL 1447:2020 Electric Lawn Mowers

UL 1447:2020 is a safety standard developed by Underwriters Laboratories (UL) for electric lawn mowers, covering both corded (rated voltage ≤250V) and battery-powered models. It specifies comprehensive safety requirements across key dimensions, including electrical safety (such as insulation integrity, leakage current control, and wiring connections), mechanical protection (like component strength, blade safety, and structural stability), and operational safety (including splash protection and charging system safety for battery-powered units). The standard aims to mitigate hazards associated with electric lawn mower use in residential and similar settings, providing a rigorous framework for manufacturers, testing bodies, and regulatory compliance.

LISUN supplies the fully test solutions for the following UL 1447:2020, please see the below excel table:

UL 1447:2020 Clause and Subject	LISUN MODEL
6.5 Protection against corrosion	YWX/Q-010
7 Accessibility of Live Parts
Figure 7.1	SMT-PA190
Figure 7.2	SMT-5753
Figure 7.3	SMT-S2962
18.4 Protective controls (limiting controls)
b) Power Supply Voltage Dips	CSS61000-11
c) Surge immunity test	SG61000-5
d) Electrical fast transient/burst test	EFT61000-4
e) Electrostatic discharge test	ESD61000-2
f) Radio-frequency electromagnetic field immunity	RFCI61000-6
g) Thermal Cycling Test	GDJS-015B
30 Temperature Test
32.1 High humidity
43 Accelerated Aging Test
81 Resistance to Heat Test
18.4.3 Vibration Test	LVD-100KG
25 Leakage Current Test	WB2675D
29 Impact Test	LS-B33
32.2 Water spray	JL-UL
44.2 Oven aging test	GW-500
44.3 Immersion test	JL-8
45.2&80 Resistance to impact test	IK07-10
45.4 Flame resistance test	ZY-3
46.5 Flame test	HVR-LS
46.6 Resistance to hot-wire ignition test	RSY-LT
46.7 High-current arc ignition test	HCAI-2
66 Foot Contact Test	SMT-TF03