安规网

标题: 尝试翻译UL PAG，欢迎批评指正。 [打印本页]
作者: flowme    时间: 2009-3-16 09:59
标题: 尝试翻译UL PAG，欢迎批评指正。
这东西真难翻译。。。不过挺有意思，有收获！
" C- S( U) }9 u7 t( k' C3 b% q能把这东西翻译好，水平就不一般了。
作者: flowme    时间: 2009-3-16 15:22
期待高手的出现
作者: flowme    时间: 2009-3-18 09:14
号称5万个会员的安规网应该有人知道UL PAG 吧。1 A  t" i3 R* ^- R
莫非真的没有高手？呵呵。。。。。。。
作者: suuny_yang    时间: 2009-3-19 17:41
你把里面的内容贴出来啊,下你的东西要扣分
作者: flowme    时间: 2009-3-24 09:48
1.1-2 Certi?cation policy for ITE reliability/functionality  q6 }' w, _# B5 k4 \# e
DESCRIPTION OF ISSUE:
! B$ H% ~  f6 o0 Y9 K% AType of Issue: Certi?cation1 b6 b, Q' R' O/ b4 i; k
On a more frequent basis, Underwriters Laboratories receives submittals of ITE with new
- \4 y/ [% r& N) Gfunctions that introduce concern from a certi?cation perspective on whether the products’
7 z6 S8 \" {4 b4 U9 s& A" A: _2 Bfeatures other than safety should be included as part of the UL Listing. While the investigation  ^5 h5 w9 P1 P: I6 O% i, m
of these products to UL’s ITE safety standard is straightforward, the determination of whether a
. e8 R4 u% n2 c% R  |) xmore encompassing reliability investigation is needed typically is more involved, sometimes  t% b4 M: w; b
delaying the timely certi?cation of the product.& @" A+ A& K; v& ^$ `* o
What is the UL certi?cation policy on evaluating ITE for non-safety related considerations?  `) q2 P$ g+ f0 G
APPLICATION GUIDELINE:) a: g1 U4 G- N7 J
In general, UL will not investigate the reliability or functionality of ITE unless (a) it clearly falls6 b$ E' U( t; {8 m! m/ t. i$ Z# C  W
under one of our existing product categories that require a reliability investigation (e.g., security,# y( h* N' g$ k' W
burglary protection); (b) the manufacturer speci?cally requests a more encompassing reliability4 @: \3 d& {6 x. v" j
investigation; or (c) there are additional external considerations that mandate that UL conduct a( A. l) Z7 T+ ?5 g$ T# K; Z
reliability-based investigation (e.g., required by AHJs).0 w. a8 x6 [- W' F; f( Y
Determination of the above involves communication between the ITE project handler and the( w" B- @; }7 ^: U, T( m
customer to fully understand the product, its function and its certi?cation drivers, followed by  t3 V) U# ]9 A& ^
consultation of the NWGQ Primary Designated Engineer (PDE) by the local Designated
) h& [' i2 m1 I6 J( Z- xEngineer (DE), as needed. After considering all the factors, the PDE then will make a decision8 O* ]! F4 S2 K; }4 x8 k
whether further consultation is needed with the Global Chief Engineer, which should be rare.
2 M* d+ S3 u3 Y5 a# R3 JOverall, the stated policy will shorten the time needed to consider whether a reliability-based
+ r7 |# v- Q0 r. X) c! kinvestigation is needed for products with new features since the great majority of ITE do not% B! G% \  b" A& N+ k6 F4 l
require certi?cation for other than safety when the considerations stated above are applied.% C% j2 I6 j9 I& ?3 x
RATIONALE:. ~2 d4 a4 u& j2 `7 P5 w& A
Frequently, when manufacturers are questioned about their preference for the scope of their UL5 s" X* P3 n6 ^/ a) \2 Q
certi?cation of ITE, the manufacturers indicate that they only want UL to investigate their$ N# @7 O" ?, K( x+ p1 {
products for safety (i.e., electric shock, ?re, etc.) and that they do not want their product9 a: z2 E, A0 s* A8 O5 h
investigated for reliability and/or functionality. Typically, their position is that the marketplace will
7 [4 d4 ]" [( T& D( C- |determine the value of their product in relation to performance as advertised, and that they do0 b! d: c8 U! D% M! Y6 s  ^3 L
not want the UL certi?cation to demonstrate anything other than that their product is safe.
& X! q; d/ ~' ZFor example, there are a variety of Internet security products being introduced onto the market.
6 S/ u# M' N2 o7 R' M6 C/ @Traditionally, UL would have a concern that the ITE Listing Mark could represent that the product
- a+ Q! [9 u3 _! ^, ~# bperforms as advertised, i.e., provides Internet security. However, since most manufacturers do, W- ?1 j6 l0 F" z7 A
not want this aspect of the product investigated, and there do not appear to be any external  [5 |8 G  H4 n
DECEMBER 31, 2008 PAG 60950-1 20Document Was Downloaded By Peter SC Yeh   For Use By MITAC INTERNATIONAL CORP   21014 : 1/4/2009 - 9:29 PM! f" J9 C$ j8 p) R: I" d* @$ }
UL COPYRIGHTED MATERIAL –9 E- k7 B, |; m( O! R4 t
NOT AUTHORIZED FOR FURTHER REPRODUCTION OR
' ]7 B% u/ z( r* l/ UDISTRIBUTION WITHOUT PERMISSION FROM UL: d/ @0 e4 }/ m' w2 Z9 f3 F: D' A
drivers mandating a reliability/functionality investigation for this type of ITE, UL will not consider
/ q1 z) w- l) K: D) @: M! @( J* R% uapplying additional non-safety related requirements to ITE covered under NWGQ unless the
, I4 W/ {( Y+ G& Zmanufacturer wants it or there is some external driver mandating it.
( G: ?8 @* V0 t1 H0 dTo help formalize this UL certi?cation policy, the NWGQ Guide Information has been revised to# C, m+ M3 T! y  w
state (under Requirements) that “The ability or reliability of these products to perform their) F# d: k# \4 Q: i# c( E' ^
intended function in a particular application has not been evaluated.”! m9 }# W3 v* p& L9 I
OTHER:6 _% }3 ]) w8 e& M
Comments:
- X( \, r+ B( J% _3 bInterpretation Systems: NONE4 O" \/ e, \% ~6 u
RELATED APPLICATION GUIDELINE(S): NONE
# |. @: \  q/ Q) {0 w. v2 A1.1-2信息技术设备的可靠性、功能性的认证政策
2 t9 ?! u' a' n) I' ^7 l争论描述：( ^3 Y" i7 R% z6 |" D6 d3 F4 J% Q
争论类型:# R1 z3 L8 Y* L6 b7 d7 e2 E7 n
这种情况经常发生,UL接受递交,从认证方面考虑信息设备除了安全意外的功能是否应该包括在UL的列表里面。5 l: Z1 k# _% _; o( D
相反UL 信息设备的安全标准的考察是容易的的，是否把可靠性实际考虑在内有时候耽误了产品进程。
5 T" B+ M% x7 u2 h) c: a, NA:在信息设备非安全方面的考虑，UL的认证政策是怎么样的？
: Z8 p/ [9 A: e- s
  v7 y- j! |5 P8 L* Y) N申请指南：- f" W7 x) e# e  K4 r" G, w, V
一般，UL不会考察 信息设备的可靠性或者功能性，除非. S  n3 K4 k1 x1 V8 b: q
a:产品要求可靠性考察（等等，安全，）$ e8 J. N7 I4 @5 M9 I3 ?0 c
b: 制造商特别要求可靠性考察；. v5 V) o! A) i3 a. I, u9 E" A
c: 除非有铁别的考虑UL产品的可靠性需要考量。: a0 h% u5 H& y
上述决议包含的信息已经使ITE案子拥有者和客户很好的理解产品。它的功能和认证驱动，是被NWGQ本地签署的主要设计工程师所跟踪的。在考虑到所有因素后，PDE会合全球首席工程师就是否需要进一步协商达成一致，这个应该罕见的。
1 A- R4 H4 Q6 i  T. ~3 C* w总体上说，这项这册会缩短产品的可靠性调查和新特征，既然ITE不会需要安全意外的认证，当上路声明被应用到的时候。
0 K/ O: t" p; C8 J3 T$ v* Q0 b0 {8 M( {2 ~  B4 c, R. q- E
原理，$ j* w9 P4 O8 Z0 V7 r* e0 M, {
通常，当厂商被问及到他们信息产品的UL证书目的，他们回答他们只想UL考察他们产品的安全（电击、防火等等）别且他们不想他们的产品被考察可靠性或功能方面。很典型，他们的态度是市场会决定产品的广告里表现的价值。并且他们不想UL证明安全方面意外的东西。
3 }' ^" C: I1 O7 Z+ o例如，有许多不同种类的网络安全产品被推向市场，通常UL会考虑信息设备的列名标记会重现产品在广告里展现的性能。提供网络安全。但是，既然多数厂家不想他们的产品被考察，并且不会有可靠性，功能方面的考察。UL不会去依据NWGQ考虑申请多余非安全相关的要求除非厂商要求或者有其他外部驱动授权。
" Q9 V4 m' l5 J# Y: _  @  I为了使这个UL证书的政策成型，NWGQ知道信息已经被修改声明“产品的功能和可靠性在这个申请里不会被评估”
作者: flowme    时间: 2009-3-24 10:23
1.1-3 Certification options for power distribution equipment associated with ITE
, g1 @4 @* E: R* }; QSTANDARD IEC/UL 60950-1. |' t' q& U: T7 [8 G/ W7 o0 o
APPLICABILITY UL(C-UL) only- r0 L, J2 _# h. a* J
(Sub)CLAUSE/ANNEX NUMBER: 1.1( W6 ], X6 m) P
(Sub)CLAUSE/ANNEX HEADING: Scope7 ^6 M0 S( c) \8 G6 V5 h3 L8 ^
OTHER RELEVANT (Sub)CLAUSES/ANNEXES5 o: [8 Y! ]& k5 O( ~
(as Applicable):# W4 h; g( ?+ Z4 t/ l
1.1.2, 1.6.1.2, Annex NAB( @, R9 \" l! {. W: R, o
DESCRIPTION OF ISSUE:, C) Z: q. A8 S% h
Type of Issue: Certification3 w0 \5 R/ q/ I3 b" C
A variety of power distribution equipment associated with both a.c. and d.c. power is used with- O3 V2 o' K4 G& t0 O# O
ITE, including power distribution units, computer power centers, charger/rectifiers, and primary6 N5 j8 u5 \' i7 J
and secondary distribution-related equipment. What standards should be used for this
, L& m! a1 P/ |- ]1 yequipment, and what product categories should it be certified under?
; ~0 ^- v2 B9 j% W) ~# RAPPLICATION GUIDELINE:
7 H& }0 q2 X+ N( [  p8 TThe two main sets of technical requirements used to investigate power distribution equipment
9 J  D5 ?" d0 Rassociated with ITE are (a) IEC/UL 60950-1, First Edition; and (b) UL Subject 1801, Outline of
/ p; L6 J- ^$ v8 u' u' h0 pInvestigation for Power Distribution Centers for Communications Equipment. UL 60950-1 is
0 z5 k& m: f- F; X7 k7 Pbased on IEC 60950-1. Subject 1801 is based in on (in fact was used in part to develop) Annex5 W! a, \. G8 H: h# `8 i
PS-E, DC Power and Distribution Equipment, of proposed IEC 61204-7, Low voltage power
7 ?; `  V7 ~7 \2 L  @& osupplies, d.c. output – Part 7: Safety requirements. Subject 1801 requires compliance to IEC/UL
  z! ]( J  r" d) p4 T8 e60950 in addition to the supplementary requirements in it.
/ o$ j2 v$ p7 Y, ^The three main product categories used to investigate power distribution equipment associated
& ]9 {' S5 d/ e1 N; Ewith ITE are (a) NWGQ/2, Information Technology Equipment, Including Electrical Business
# _* r6 }& L+ ]Equipment; (b) QQGQ/2, Power Supplies, Information Technology Equipment, Including
: V3 u4 ^) X! h% C7 ?/ D& B% ?Electrical Business Equipment; and (c) QPQY/2, Power Distribution Centers for/ r% r  ^/ F' ^
Communications Equipment.# F. r* G3 d; F6 g$ ~  R9 N
POWER CENTERS FOR IT/COMMUNICATION EQUIPMENT; d" P9 I, q; K5 B+ E  \
DECEMBER 31, 2008 PAG 60950-1 21Document Was Downloaded By Peter SC Yeh   For Use By MITAC INTERNATIONAL CORP   21014 : 1/4/2009 - 9:29 PM
! ^8 g- s5 a1 S" YUL COPYRIGHTED MATERIAL –
8 Q+ x1 a4 k! S; |' \2 f: s4 ]' m+ @NOT AUTHORIZED FOR FURTHER REPRODUCTION OR
+ d. x  T9 U9 ?: w8 U7 lDISTRIBUTION WITHOUT PERMISSION FROM UL
/ S% ^3 ^: ~: {* [References are to Figure NAB.1 of IEC/UL 60950-1 (Figure 1A of Subject 1801).% ~0 t2 W" e8 j& q& }
Applicable category and standard for equipment associated with the specified part of system:
* ?9 b! f8 S$ }0 B$ E: t3 K6 Z• Charger/Rectifier: QQGQ/2 and IEC/UL 60950-1.% o# o/ j, c- g& z" x; f
• Batteries, Discharge Bus, Primary and Secondary Distribution: QPQY and Subject1 I! _$ r, b* S: @0 V$ H
1801
1 _/ W2 {( r/ g1 s+ ]– typically part of a DC Power Distribution Center2 h( _# {4 f: B& |: x5 H
– System/Center may include a QQGQ Charger/Rectifier
" W' q& [  f* B• DC Powered ITE: NWGQ and IEC/UL 60950-1
- u# w( k8 @9 o+ f% l7 C9 yPOWER DISTRIBUTION EQUIPMENT FOR USE IN COMPUTER ROOMS
8 w* n6 H+ C; m) }Applicable category and standard for equipment:
4 v! {; R+ z" Q" k0 \: ~  y• NWGQ/2 and IEC/UL 60950-11 P  }* M- t; b+ r8 \) s
• Limited to equipment installed exclusively in an ITE (computer) room, connected to
8 Z0 r" I7 Z( m/ }1 La branch circuit, and having output circuits consisting of receptacles or cable1 J; }/ T2 z7 F, o
assemblies supplied as part of the equipment. These restrictions are placed on the% m3 P2 N: }+ I- @2 s
allowed equipment because it is not investigated by UL as a separately derived
2 _+ W$ D/ l1 F7 f4 lsystem (per the NEC Article 645 allowance). Such equipment typically includes stand-
3 S! O/ v9 G! A# P  D( @# e- k% A) Ialone power distribution units, computer power centers, and similar equipment for use
. o1 l/ W: p9 D2 V2 W8 Fin computer rooms. Power distribution equipment, in particular that with an isolation
0 u2 T' p9 I' [2 etransformer, used outside of a computer room should be investigated to the applicable) H: H# n! L. W' _, ~9 s; C1 O
industrial control or distribution transformer standard/category, as appropriate, e.g.,- ~0 @) f7 p& k+ A+ y$ D" Z. _
Unit Substations (YEFR)/UL 1062; Dead Front Switchboards (WEVZ)/UL 891; Dry. P" o/ D2 {/ E6 l
Type Transformers (XGNX)/UL 1561, etc. UL’s Industrial Control Equipment group
6 r% s1 m6 h' _$ H' i! b( P( P& ]should be consulted, as appropriate.
7 o4 H8 p0 l" xPOWER DISTRIBUTION UNITS FOR USE IN ITE RACKS AND CABINETS
2 v) E# ?+ Y0 EApplicable category and standard for equipment:
. S" y; K* @2 Q0 _• NWGQ/2 and IEC/UL 60950-1.
* z3 r; S2 ^9 Y# U; j9 G" OSuch equipment includes a.c. connected rack mountable power strips and shelves, often similar  r4 q6 m  U% T/ [; @, k) L9 U
to relocatable power taps except for use exclusively with ITE.* ~2 ]& G& X& \3 S
RATIONALE:
1 m) l. o. d$ b$ EFor many years the only power distribution equipment investigated as ITE were computer power2 [1 a  S/ C, I6 T- A* H: C
centers and similar power distribution systems that were intended for installation in computer* ]6 y8 O2 f& _3 Z0 z- }- @; q
rooms. These large systems evolved from the power distribution systems that were originally4 Z. u  c  t  R& L% G+ }
integral to large mainframe computers, where a single integral distribution transformers would
2 v6 I$ c1 h5 p5 d3 ~( f3 vsupply power to several mainframe bays. However, as computer rooms and computers became, F7 d$ G$ G: J* G7 g: y& ^3 ]
more sophisticated, these power distribution systems were designed into their own cabinets.5 i) N, E( {7 b& `- B8 D, u. S$ q
This lead to a number of Code-based issues surfacing in the 1980s, in particular whether or not& d( t4 P) {% b" o+ I# h2 Z
these systems should be considered separately derived systems. In fact, originally, AHJs were
' [; K5 A3 ~5 z# h* I" e  bDECEMBER 31, 2008 PAG 60950-1 22Document Was Downloaded By Peter SC Yeh   For Use By MITAC INTERNATIONAL CORP   21014 : 1/4/2009 - 9:29 PM
  O( j  ]; L# y8 |! d, r& aUL COPYRIGHTED MATERIAL –
* ?$ Q! s- m* y+ wNOT AUTHORIZED FOR FURTHER REPRODUCTION OR
! T. m; j  `% R; q- QDISTRIBUTION WITHOUT PERMISSION FROM UL8 d/ D; U" [% p# F! c2 M- W
requiring NEC Article 250 requirements for separately derived systems to be applied to these1 ^; k  @/ ^/ l! {0 o
computer power centers. However, eventually Industry was able to have NEC Section 645-15& A' ?8 ]1 C3 Q6 T: r
revised to state “Power systems derived within listed information technology equipment that
9 Z: E8 e8 j- X. M) j: asupply information technology equipment through receptacles or cable assemblies supplied as
0 O8 K* v6 ?4 ?/ G2 j6 upart of the equipment shall not be considered separately derived for purpose of applying Section1 M/ y9 P5 \) o3 f2 S! U9 n) P* b
250-20(d).” As a result, UL Listed this equipment as ITE, but ONLY for computer room (Article
; M3 r2 I& W! S* x  W3 t1 \7 R645) applications. Since IEC/UL 60950-1 does not treat such equipment as separately derived,
- y) W2 s; V  o5 r5 ?- Hdistribution equipment with integral transformers used outside of computer rooms should not be, P  n5 @! Z% v0 i' u) A
certified under NWGQ since additional requirements for separately derived systems must be
( R! [3 P5 @$ d( X8 C4 napplied to them and these requirements are not part of IEC/UL 60950-1.3 c: w& @0 p3 y+ j
More recently, other power distribution systems associated with communications equipment, in# T! H& T  q) Z4 C  U
particular that associated with centralized d.c., have been submitted for certification. Several: c- k, ~! o. A; g
years ago UL established a product category, QPQY, Power Distribution Centers for
0 H( ]1 @8 I+ v# V, bCommunications Equipment, specifically for covering the equipment associated with the primary( D. t  {) Q" F( _. l8 J
and secondary distribution of the centralized d.c. This category requires compliance with IEC/UL  Y+ C5 @& _. ^
60950 as its base set of requirements, but supplements IEC/UL 60950 with Subject 1801.) K- z0 A3 Y& T
Subject 1801 is required because IEC/UL 60950 does NOT include all the needed requirements+ o7 y7 b' d; \% z4 R, }6 q5 U) A; {  K
to address the safety of constructions such as busbars that distribute very large power levels.
+ E+ F2 v' A7 O4 W/ f) i6 @Eventually, it is hoped that proposed IEC 61204-7, Low voltage power supplies, d.c. output –
) B/ V1 g, }; t+ J5 @% |Part 7: Safety requirements, will be published, including its Annex PS-E, and UL will be able to1 D& ?" o, r0 L+ l6 d
adopt this IEC Standard as a U.S. National Standard that explicitly addresses d.c. distribution" k* c5 \0 P, L7 z
equipment.
4 P& F/ |$ ^- d7 K( A, S4 `Charger/Rectifiers, which are typically connected to a.c. mains and have characteristics similar. E6 t; K& `# t' b8 N4 [  Q
to other large ITE power supplies, may be certified under QQGQ/2 because of these similarities.
* r, f5 u3 a' p' NSmaller power strips and power distribution units used exclusively with ITE, which are often
0 w- D: a8 w8 h9 x9 C: J/ usimilar to relocatable power taps, but which often have much higher input ratings and may have9 z! p' M5 o$ \. `1 q3 o6 m
both NEMA and non-NEMA power outlets, have traditionally been certified under NWGQ/2 and3 T! B3 }( \! ]" j- A. a' F, R
may continue to do so since the requirements in IEC/UL 60950-1 are considered adequate for# U1 D7 d4 c2 ~
certifying these constructions.
* F+ U# p7 H; }( i/ d+ |; |
2 z5 {; L$ V6 Z, o& D/ ^1.1-3 信息设备电源分配系统的证书选择
1 M' a: Q' U0 ~0 C8 Q7 q问题类型：认证
: C" q/ M0 r( `5 f在信息设备里有不同种类的跟交流，或直流相关的电源分配系统，包括电源分配系统单体，电脑电源中心，充电器、整流器，还有一次，二次分配设备。这样的设备应该用什么标准，应该分配到哪一种产品类别？
3 [' l, C; l) t0 a+ s0 K1 P: Y7 X! u
申请 指导：.
. Y- N& {; a! j- K/ u8 H* |/ k9 |% q) u这两种用来考察电源分配系统的设备的要求应该归属于（a）IEC/UL60950-1,第一版；还有(b) UL目录1801，主要描述了信息设备电源分配系统的考察。UL60950-1 是基于在IEC60950-1.目录1801 是基于在（实际用一部分发展），附录PS-E，直流电源和分配设备，在IEC61204-7被提及到，低电压电源，直流输出-第7部分：安全要求。目录1801要求遵循IEC/UL 60950除非有更多的要求。
( O( D: L; C7 [: a. |, e9 r/ \% e" T3 @5 q: E% B
这三种主要用来考察电源分配设备产品类别相关的信息是（a）NWGQ/2,信息技术设备，包括电子商务，电子商务设备，（C）QPQY/2J,信息设备电源分配中心。/ N- e$ G' X  o) {$ y# E! X

) G4 ]2 S6 O$ c$ M: }信息/通信设备给的电源中心) O, ?  S, N0 a" u+ q( |- E4 @
参考图表IEC/UL 60950-1NAB.1(图标目录1801-1A)
  y6 x; ?" G3 m# S4 F系统指定的跟设备相关的应用分类和标准。
6 n+ B: _% o% Z& H充电器/整流器：QQGQ/2 和 IEC/UL60950-1.
% y2 H3 r& K' @1 K( }% C电池，车载充电器，一次和二次分配：QPQY和目录1801- s: l6 k3 q- q' a' n; E  i4 k/ {
直流电源分配中心
8 G7 n- h& ^+ I. d. X5 e: W  M系统/中心或许包括QQGQ 充电器/整流器) E5 H8 {' H& e& m
直流供电的信息设备：NWGQ 和IEC/UL 60950-1
4 |% [$ o+ @1 f, C# O; f* m. u' c: g5 ^$ D% o/ v4 c7 @+ S) N3 ]$ o
电脑房里用的电源分配设备。
: X$ g3 l' \$ F- @  ~# K: w应用分类和设备的标准：
; \+ f/ K# o( MNQGQ/2 和 IEC/UL60950-1
/ ?- ~' T0 K1 G% Z; x: Y% N$ G限于设备安装只在一个电脑房间，跟分支电路相连，并且有输出电路。这些限制被放在允许的设备上面因为他不被UL所考量作为单独源自系统（根据国家电工委员会645决议）。这样的设备特别包括电源分配系统，电脑电源中心，和电脑房里用的简单设备。电源飞陪设备，特别是变压器，电脑房外用应该被考量或者分配变压器标准/类别，单体分局。转换板；干燥转换器（XGNX）/ul1561,等等，UL的工业控制设备
# y  ~5 d* ]( P3 y3 F. q+ K- W6 j) {/ b
信息设备支架和柜子里面的电源分配单体" d. ?5 H) c( S4 _; V) L: T
应用类别和设备的标准。
5 i) p- w  N( f-NWGQ/2 和 IEC/UL 60950-1.
# _- ?+ h, _+ [8 c# ?8 G类似内置在电源架子里面的直流设备，常常被划分为电源类，除非特别化为信息类设备。
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8 {2 t0 U( f2 o& F1 |  Z# I; V基本原理：
0 `+ v0 a/ _" H$ e5 D) k& u许多年以来，被认为是信息类设备的电源分配设备仅仅是计算机电源中心和简单的电源分配系统。许多大型系统囊括了电源分配系统和原始整合的大型主机电脑。单体的整体所需的分配变压器会给许多刀片主机供电。但是，向电脑机房和电脑变得更精密，这些电源分配系统被设计安置在格子里。导致90年代许多问题，铁别是是否这些系统应该被划分在系统之外。事实上最初AHHS要求国际电泳委员为250项要求中吧这种电源分配系统划分出来。但是事实向工厂能把国际电工远非地645-15“那些给信息设备供电的被划分到信息技术设备里面的电源系统或者是设备的电线分配不应该被分离出来”。结果UL把这些设备列为信息类设备，但仅仅是那些应用在电脑机房里的电气设备。自从IEC/UL 60950-1不把这样的设备单独划分出来，备用到户外电源机房里的带有基本变压器的分配设备，不用改被用类别好NWGQ认证，自从跟多要求要单独分配系统。这些要求不是IEC/UL60950-1中的一部分。
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, |/ f* `, W; E3 N  T' t6 j最近，其他跟通信设备有关的电源分配系统，铁别是跟直流有关的，已经被要求认证许多年前UL建立了产品类别好，QPQY，通信设备的电源分配中心特别是波阔设备的主刺激分配直流中心。这个类别的要求应用于IEC.UL 60950 。但是附加IEC/ul60950 第1801案子，1801案子是被要求的因该IEC/UL60950 不包括所有需要的设备去到到安全结构
. H2 Z0 N, c1 y) |9 V- y, J! r事实上，本来是想依照，IEC 61204-7,低电压电源，直流输出，安规要求要被公布出来，包括附录PS-E，UL会取消美国国家标准
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- Z) W% t/ h' s3 N; f/ f+ M% w充电器/整流器，那些跟直流电源相连，有一些信息设备电源的特征，或许因为相似性被按照QQGQ/2来认证。
8 R7 S9 W6 K  ^) ]小一点的移动式电源插座和电源分配系统特别跟信息设备一起用的，往往类似的电源，但是往往有很高的输入值而且也许有nema 和非NEMA电源输出，通常经过NWGQ/2的认证而且也许继续这样写去依照IEC/UL 60950-1 去考虑这些设备是被认为合适的。
作者: flowme    时间: 2009-3-26 08:18
亲爱的版主唉，
" z+ j' H0 h2 M; z3 [' K/ C) W我发的帖子你们很少跟哪，好坏给句话呀。繁荣本版块这样可不行啊。
作者: 雅逸    时间: 2009-3-26 08:52
FAQ是什么东西呀?
作者: wwbwww    时间: 2009-3-26 09:01
提示: 作者被禁止或删除 内容自动屏蔽
作者: nemesis    时间: 2009-5-25 15:55
版主很牛，我们一直想翻译来着~~
. \( C: r& z) R可是只有这些吗？; i' E3 W% b4 h3 l8 W
第三章3.3.5翻译了吗？terminal lug必须有ZMVV的listed认证吗？
作者: flowme    时间: 2009-5-26 09:00
我自己看了都想笑。不过我尝试了。。。。呵呵
作者: suuny_yang    时间: 2009-6-10 19:51
这个翻译也太偷懒了，明显就是放到翻译软件里面搞出来的嘛
作者: flowme    时间: 2009-6-11 08:27
我可以很负责的告诉你，我没必要用翻译软件。。。。。。( c- l/ u1 G5 a! k
你厉害你来啊。
作者: flowme    时间: 2009-6-11 08:48
[quote]引用第13楼ljh809809于2009-06-11 08:41发表的  :
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0 ^& g) o2 ]8 Z OK?
作者: pater2730    时间: 2009-6-12 13:45
我是觉得PAG没有必要翻译这些东西，自己能读懂理解就好，且这个又不是标准，只是UL内部的指导资料，翻译没什么意义，万一不真的产生分歧还是要与UL工程师讨论，如果又与标准产生矛盾，最后就是遵循标准了。。。且这个UL更新挺频繁的！
' M6 r* d& }. i1 MPS：UL 很多标准都对应有PAG，那都想翻译？
作者: flowme    时间: 2009-6-12 16:01
引用第15楼pater2730于2009-06-12 13:45发表的  :7 S( q5 t- ^6 P' G; V
我是觉得PAG没有必要翻译这些东西，自己能读懂理解就好，且这个又不是标准，只是UL内部的指导资料，翻译没什么意义，万一不真的产生分歧还是要与UL工程师讨论，如果又与标准产生矛盾，最后就是遵循标准了。。。且这个UL更新挺频繁的！7 d+ G. L+ V2 h7 f3 N
PS：UL 很多标准都对应有PAG，那都想翻译？
楼上别说跟主题没关系的话。
5 _" @- U" E% w9 F2 U这里是音视频专区，你说我翻译PAG干什么？没事闲着玩啊。7 S/ O# ^4 O# |
我翻译的目的无非就是想跟大家讨论讨论950. , {# A. Z$ [) D1 L6 E$ S; E
你说我都想翻译？你怎么知道我有这么高的热情啊？# w9 c- r' p! ?( \* w* z* |! X. Q
有意见你就我的译文提，别的废话别说。这是技术讨论区，不是你灌水的地儿。
作者: jerryxiao    时间: 2009-6-14 23:51
翻译的很不错3 V- c: E5 L% i, p1 L3 H- Y% L9 W
加油！！！！
3 x* _: f4 c. m/ z6 P. ?提一句，大家如果会涉及的UL60950的话，PAG会是一个非常非常有用的参考资料，虽然它不是标准，不过确切的事实是大多的UL60950的工程师都在follow这个PAG
作者: twobigseas    时间: 2009-11-15 19:05
UL也超恶心了，认证那么贵，PAG还不免费共享，遇到问题就说“我们PAG里有说这点应该怎样怎样”，哥们，你那PAG有共享吗？崩溃。还说是非盈利机构。
作者: hdf590    时间: 2009-11-16 22:35
不错，我也试着翻译下。
作者: zealliming    时间: 2009-11-27 08:59
建议政府出面把UL所有资料都翻译成中文，然后免费给大家使用
作者: zhengliang    时间: 2009-11-27 14:54
很晕呀...- J9 x' Q9 e- s: D
翻译过来有的也不是对的..
作者: freezk    时间: 2009-11-27 15:36
先顶，有时间再看看
作者: finzha    时间: 2009-11-27 16:41
精神上支持一下
作者: Marshal    时间: 2009-11-29 21:16
还是直接看原版吧，这是必须的，主要的重点翻译一下还是可以的，全部翻译就比较没有必要了。
作者: hdf590    时间: 2009-12-10 15:21
自己不做别打击别人，当年我上班无聊也翻译过300多页的标准，做完只能说收获是巨大的。
作者: beckykoo    时间: 2010-3-27 11:44
怎么获得金币咯
作者: beckykoo    时间: 2010-3-27 11:45
怎么打开是空白的啊
作者: wuyueguang    时间: 2010-3-30 20:22
引用第18楼twobigseas于2009-11-15 19:05发表的  :. H  [! c9 t' `2 R; A+ m
UL也超恶心了，认证那么贵，PAG还不免费共享，遇到问题就说“我们PAG里有说这点应该怎样怎样”，哥们，你那PAG有共享吗？崩溃。还说是非盈利机构。
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hehe, 听到很多这样的抱怨了。
作者: flowme    时间: 2010-4-1 14:51
引用第29楼wuyueguang于2010-03-30 20:22发表的  :! \( z& `; `0 \" C4 K. O  T

# O) T5 w9 y- u
9 U- ^' _) T* J3 w2 Z9 \/ x1 D$ U; @hehe, 听到很多这样的抱怨了。
关于非盈利，我是这样理解的：两个国家打贸易战，同时都需要保护自身经济。钱从哪里来？当让是羊毛出在羊身上。。。。直接管对方要钱不好，结果只能让两个国家的老百姓掏钱买单。
作者: qianxiaoli    时间: 2010-8-24 12:37
这个翻译很实用，谢谢楼主
作者: lanfeiyuner    时间: 2010-11-2 14:12
引用第24楼hdf590于2009-12-10 15:21发表的  :5 n2 D1 O1 @/ _# t" K7 E
自己不做别打击别人，当年我上班无聊也翻译过300多页的标准，做完只能说收获是巨大的。
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麻烦把翻译好的贴出来看下.
作者: Andy.Yang    时间: 2010-11-2 14:19
So many experts...
作者: bob_dai    时间: 2010-11-12 00:50
如果是你UL的用户的话，可以申请UL home的账号，可以免费下载UL标准和PAG的。



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