
Environmental Conditions
Model and Meaning
Ambient air temperature: Upper limit +40℃, lower limit generally -10℃.
KYN28-12/Socket-Socket
◆Altitude: 1000m
Rated Short-Circuit Breaking Current (KA)
◆Humidity:
Rated Current (A)
Relative Humidity: Daily average not exceeding 95%, monthly average not exceeding 90%.
Rated Voltage (KV)
Steam pressure: Daily average not exceeding 2.2 KPa, monthly average not exceeding 1.8 KPa
Design Number
Condensation may occur when temperatures drop sharply, accompanied by dirtiness. This product is suitable for the following conditions beyond the norm:
Two more severe environmental conditions:
Indoor
(1). The essence is not frequently used (no more than twice per month) and has slight contamination:
Sliding
(2). Generally, no condensation (not more than twice per year) with severe soiling occurs.
Metal Clad
No fire, explosion hazards, or severely polluted gases capable of corroding metals and damaging insulation.
No location with severe vibration, jarring, or vertical tilt exceeding 80 degrees.
Note: (1) Storage and transportation allowed at -30℃.
(2) In areas where the altitude exceeds 1000m, refer to the technical requirements for the use of high-voltage electrical equipment in altitude areas as specified in JB/2102. When the altitude does not exceed 2000m, no measures are required for the low-voltage auxiliary equipment.
(3) When actual operating conditions differ from those mentioned above, both the user and the manufacturer should negotiate.










