iec60664_help.h File Reference

Go to the source code of this file.

Functions
	_HKI ("The goal of the IEC60664-1 is to provide guidance on designing insulation for products that have a connection to mains supply.\n" "\n" "However some cases are not covered by this calculator:\n" "\n" "- For frequencies higher than 30kHz, the dielectric performances are degraded. IEC60664-4 covers those cases\n" "- When using a conformal coating or a potting in order to protect for pollution, if all conditions specified by IEC60664-3 are met, the clearance and creepage distances can be reduced. Soldermask is usually not considered as a conformal coating.\n" "- Insulations trough liquids, compressed air or gases other than air are not in the scope of IEC60664\n" "- The dimensions for creepage distance cannot be specified where permanently conductive pollution is present (pollution degree 4)\n" "\n" "The OVC category can be determined as follows:\n" "\n" "- OVC I: Equipment connected to circuits in which measures are taken to limit transient overvoltages to an appropriately low level\n" "- OVC II: Equipment connected to the mains through outlets or plugs, such as household appliances and portable tools\n" "- OVC III: Equipment that is part of the fixed installation, such as switches, circuit breakers, distribution boards, ACs, and permanently installed industrial equipment\n" "- OVC IV: Equipment installed at the origin of the electrical installation, such as electricity meters, primary overcurrent protection devices, or equipment connected directly to the grid\n" "\n" "The PD category can be determined as follows:\n" "\n" "- PD1: Sealed or in clean laboratory (non-conductive pollution).\n" "- PD2: General commercial indoor (non-conductive pollution, but temporary conductivity caused by condensation may occasionally be expected)\n" "- PD3: Industrial environments, or humid areas (conductive pollution, or non-conductive pollution becomes conductive due to expected condensation)\n" "- PD4: Outdoors or exposed equipment (persistent conductive pollution)\n" "\n" "Material Insulation Groups (For reference only, verify the final calculations with your supplier):\n" "\n" "- I: PTFE, PE, PA, PP, PVC, ABS (CTI >= 600V)\n" "- II: PBT, PS, Non-Brominated Epoxy (400V <= CTI < 600V)\n" "- IIIa: Standard FR4, CEM-1, Brominated Epoxy (175V <= CTI < 400V)\n" "- IIIb: PEEK, PI, PF (100V <= CTI < 175V)\n" "")

Function Documentation

_HKI()

_HKI	(	"The goal of the IEC60664-1 is to provide guidance on designing insulation for products that have a connection to mains supply.\n" "\n" "However some cases are not covered by this calculator:\n" "\n" "- For frequencies higher than	30kHz,
		the dielectric performances are degraded. IEC60664-4 covers those cases\n" "- When using a conformal coating or a potting in order to protect for	pollution,
		if all conditions specified by IEC60664-3 are	met,
		the clearance and creepage distances can be reduced. Soldermask is usually not considered as a conformal coating.\n" "- Insulations trough	liquids,
		compressed air or gases other than air are not in the scope of IEC60664\n" "- The dimensions for creepage distance cannot be specified where permanently conductive pollution is present(pollution degree 4)\n" "\n" "The OVC category can be determined as follows:\n" "\n" "- OVC I:Equipment connected to circuits in which measures are taken to limit transient overvoltages to an appropriately low level\n" "- OVC II:Equipment connected to the mains through outlets or	plugs,
		such as household appliances and portable tools\n" "- OVC III:Equipment that is part of the fixed	installation,
		such as	switches,
		circuit	breakers,
		distribution	boards,
		ACs	,
		and permanently installed industrial equipment\n" "- OVC IV:Equipment installed at the origin of the electrical	installation,
		such as electricity	meters,
		primary overcurrent protection	devices,
		or equipment connected directly to the grid\n" "\n" "The PD category can be determined as follows:\n" "\n" "- PD1:Sealed or in clean laboratory(non-conductive pollution).\n" "- PD2:General commercial indoor(non-conductive pollution, but temporary conductivity caused by condensation may occasionally be expected)\n" "- PD3:Industrial	environments,
		or humid areas(conductive pollution, or non-conductive pollution becomes conductive due to expected condensation)\n" "- PD4:Outdoors or exposed equipment(persistent conductive pollution)\n" "\n" "Material Insulation Groups(For reference only, verify the final calculations with your supplier):\n" "\n" "- I:PTFE	,
		PE	,
		PA	,
		PP	,
		PVC	,
		ABS(CTI >=600V)\n" "- II:PBT	,
		PS	,
		Non-Brominated Epoxy(400V<=CTI< 600V)\n" "- IIIa:Standard	FR4,
		CEM-	1,
		Brominated Epoxy(175V<=CTI< 400V)\n" "- IIIb:PEEK	,
		PI	,
		PF(100V<=CTI< 175V)\n" ""	)