|
|
|  DSH 448" Y! c+ N: P' }5 {
4 w* r. v6 G: l, y
| Definitions
# F$ Z/ |! O0 ]- d4 L3 h2 f | 2.2.10
; z5 p1 C0 P0 e8 }/ A! T( |* [- i. l | 60335-1(ed.2)) k, b" @6 p* ^
|
# V; S& w# A$ r/ `" t+ qStandard: IEC 60335-1:1976, 2nd Ed.+ N4 Q6 @" A) c1 Z9 I9 O6 k; k0 k
Sub clause: 2.2.10
# Q& G% [+ y, U( j/ ASheet No. DSH-448
r8 S9 ]$ O3 W7 WSubject: Definitions& _: K; s8 k4 U1 e) [
Key words: - screws that require special tools% ~: S* S& a2 l7 D, s6 ~8 U! I4 Y4 h
Decision taken at the 40th CTL meeting 20034 u5 ?, w' r2 ?& a3 F# }8 _
Question:+ {1 b2 `7 b$ x$ U+ \9 d' H
What types of screws are considered as requiring a special tool?/ L, ^9 \% R1 r% a- Y+ B3 x
Rationale:# O( A! M, e' E$ l/ G
It is necessary to have some example of special head screws$ J/ i# F9 ~- X5 Q6 x9 t. D! ~! s
Decision:
+ Z4 B$ i, r+ k; G7 B0 [The examples of screws shown in the figure are considered as having a head for which a) K3 b" v, b+ K. V
special purpose tool is needed.& f" N9 j) `/ M
/ O, k/ Q3 [0 }- U n3 D
L, W; H% @4 F8 C6 C. ]# k7 t |
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有账号？注册安规
x
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-9-12 15:24
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡