000
00279nam a2200109Ia 4500
008
220201s1969 xx 000 0 eng d
100
_a
Indian Standard Institute
245
0
_a
IS:3961 p5 recommended current ratingesh cahles
260
_b
ISI
_c
1969
300
_a
13
942
_2
ddc
999
_c
74656
_d
74656