Toshiba HV6CS-MU operation manual Special environmental conditions

Special environmental conditions

When using the VCB in special environments, check the points in Table 1 below.

Table 1 Points to Check When Using the Circuit Breaker in Special Environments

Special	Practical example	Check points
environmental
condition
Contamination	* Large amounts of dust.	* Reduce the size of the ventilation duct
	* Salt corrosion (locations near the	* Make sure the wind does not blow
	seashore or where winds containing	directly at the location where the
	salts blow)	ventilation duct is installed
		* Install a filter
High humidity	* Places subject to frequent and/or	* Use a cubicle construction that will
	strong rainstorms or snowstorms	prevent condensation from forming
	* When there is a cooling tower or	* Use a cubicle construction that will
	other large water source nearby	prevent the wind from blowing directly
		into the cubicle
	* Where there is condensation (which
	forms when the humidity in the	* Install a space heater
	cubicle drops dramatically)
Corrosive gases	* When corrosive gases are produced	* Use a cubicle construction that
	at plants handling raw materials, at	enables the cubicle to be blocked off
	water treatment plants, in hot	from the outside air to the greatest
	springs regions etc. (hydrogen	extent possible
	chloride, sulfurous acid, nitrogen
	oxide, ammonia, chlorine, ozone	* Install a filter
	etc. or other gases)

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