1 Elements the Code and their meaning
Arrangement the Code: the Code indicates the degree protection provided an
enclosure the following way:
IP H
Code letters (international protection)
First characteristic numeral (numerals letter X)
Second characteristic numeral (numerals letter X)
Additional letter (optional) (letters D)
Supplementary letter (optional) (letters W)
Where characteristic numeral not required specified, shall replaced the letter
"X" ("X both numerals are omitted).1.CONSTRUCTION ELECTRICAL INSTALLATION AND EQUIPMENT 53
6.2 Degrees protection against access hazardous parts indicated the first
characteristic numeral
First
characteristic
numeral
Degree protection
Brief description Definition
0 Non- protected -
1 Protected against access hazardous
parts with the back hand
The access probe, sphere mm
shall have adequate clearance from
hazardous parts
2 Protected against access hazardous
parts with finger
The jointed test finger ,
80 length, shall have adequate
clearance from hazardous parts
3 Protected against access hazardous
parts with tool
The access probe 2,5 shall
not penetrate
4 Protected against access hazardous
parts with wire
The access probe 1,0 shall
not penetrate
5 Protected against access hazardous
parts with wire
The access probe 1,0 shall
not penetrate
6 Protected against access hazardous
parts with wire
The access probe 1,0 shall
not penetrate
.
Table 6.
Additional letters and/or supplementary letters may omitted without replacement.1
