CSA C22 2 NO 173-M1983-1983 Transformers for Toy and Hobby Use (First Edition General Instruction No 1 September 1983 General Instruction No 2 September 1986).pdf
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1、C22.2 No. 173-M1983(reaffirmed 2014)Transformers for Toy and Hobby UseLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. This process brings together vol
2、unteers representing varied viewpoints and interests to achieve consensus and develop a standard. Although CSA Group administers the process and establishes rules to promote fairness in achieving consensus, it does not independently test, evaluate, or verify the content of standards.Disclaimer and e
3、xclusion of liabilityThis document is provided without any representations, warranties, or conditions of any kind, express or implied, including, without limitation, implied warranties or conditions concerning this documents fitness for a particular purpose or use, its merchantability, or its non-in
4、fringement of any third partys intellectual property rights. CSA Group does not warrant the accuracy, completeness, or currency of any of the information published in this document. CSA Group makes no representations or warranties regarding this documents compliance with any applicable statute, rule
5、, or regulation. IN NO EVENT SHALL CSA GROUP, ITS VOLUNTEERS, MEMBERS, SUBSIDIARIES, OR AFFILIATED COMPANIES, OR THEIR EMPLOYEES, DIRECTORS, OR OFFICERS, BE LIABLE FOR ANY DIRECT, INDIRECT, OR INCIDENTAL DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES, HOWSOEVER CAUSED, INCLUDING BUT NOT LIMITED TO SPECIA
6、L OR CONSEQUENTIAL DAMAGES, LOST REVENUE, BUSINESS INTERRUPTION, LOST OR DAMAGED DATA, OR ANY OTHER COMMERCIAL OR ECONOMIC LOSS, WHETHER BASED IN CONTRACT, TORT (INCLUDING NEGLIGENCE), OR ANY OTHER THEORY OF LIABILITY, ARISING OUT OF OR RESULTING FROM ACCESS TO OR POSSESSION OR USE OF THIS DOCUMENT,
7、 EVEN IF CSA GROUP HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES.In publishing and making this document available, CSA Group is not undertaking to render professional or other services for or on behalf of any person or entity or to perform any duty owed by any
8、 person or entity to another person or entity. The information in this document is directed to those who have the appropriate degree of experience to use and apply its contents, and CSA Group accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the informati
9、on contained in this document. CSA Group is a private not-for-profit company that publishes voluntary standards and related documents. CSA Group has no power, nor does it undertake, to enforce compliance with the contents of the standards or other documents it publishes. Intellectual property rights
10、 and ownershipAs between CSA Group and the users of this document (whether it be in printed or electronic form), CSA Group is the owner, or the authorized licensee, of all works contained herein that are protected by copyright, all trade-marks (except as otherwise noted to the contrary), and all inv
11、entions and trade secrets that may be contained in this document, whether or not such inventions and trade secrets are protected by patents and applications for patents. Without limitation, the unauthorized use, modification, copying, or disclosure of this document may violate laws that protect CSA
12、Groups and/or others intellectual property and may give rise to a right in CSA Group and/or others to seek legal redress for such use, modification, copying, or disclosure. To the extent permitted by licence or by law, CSA Group reserves all intellectual property rights in this document.Patent right
13、sAttention is drawn to the possibility that some of the elements of this standard may be the subject of patent rights. CSA Group shall not be held responsible for identifying any or all such patent rights. Users of this standard are expressly advised that determination of the validity of any such pa
14、tent rights is entirely their own responsibility.Authorized use of this documentThis document is being provided by CSA Group for informational and non-commercial use only. The user of this document is authorized to do only the following:If this document is in electronic form:sLOADTHISDOCUMENTONTOACO
15、MPUTERFORTHESOLEPURPOSEOFREVIEWINGITsSEARCHANDBROWSETHISDOCUMENTANDsPRINTTHISDOCUMENTIFITISIN0$ it consisted of 22 pages, each of which was dated September 1983. Amendments to Clauses 4.17 and 6.8 and the addition of Figure 3 have been formally approved. These are incorporated in the attached replac
16、ement pages and identified by a vertical line in the margin. CSA Standard C22.2 No. 173-M1983 now consists of the following pages: 312, 19, 20 dated September 1983; 1318, 18A, 23 dated September 1986. These replacement pages are to be inserted into your copy of the Standard; the pages replaced shoul
17、d be kept for reference. Transformers for Toy and Hobby Use 13 4.11 Internal Wiring 4.11.1 Internal wiring of a transformer shall be suitable for the application with respect to adequate mechanical strength, temperature rating, and dielectric properties. 4.11.2 Soldered connections shall be made mec
18、han- ically secure before soldering. 4.11.3 Splices and connections shall be mechanically secure and shall provide adequate and reliable electrical contact. Splices and connections in the primary circuit shall be provided with approved insulated connectors, or be provided with insulation at least eq
19、uivalent to that of the wires involved unless adequate permanent spacing between the splice and all other metal parts or secondary circuit parts and wiring is ensured. 4.11.4 Wire-splicing connectors shall be taped to the wire after being installed. Note: Clause 4.11.4 refers to connectors which are
20、 applied by hand without the use of a suitable tool or machine. 4.11.5 Primary circuit wiring shall be adequately separated from secondary circuit wiring and compo- nents. 4.12 Spacings 4.12.1 Spacings shall be not less than those shown in Table 1: (a) Between bare live parts of opposite polarity; (
21、b) Between bare live primary circuit parts and secon- dary circuits or parts; and (c) Between bare live parts and non-current-carrying metal parts. 4.12.2 The spacings between bare live parts of opposite polarity, between bare live primary circuits or parts and secondary circuits, parts or wiring, a
22、nd between a bare live part and a non-current-carrying part shall be not less than those shown in Table 1. 4.12.3 If bare live parts are not rigidly supported, or if movable non-current-carrying metal parts are in prox- im ity to bare live parts, the construction shall be such that the minimum spaci
23、ngs specified will be maintained under all conditions. 4.12.4 Spacings within components such as lamp- holders and snap-switches, supplied as parts of a trans- former, shall comply with the requirements of that Standard of the Canadian Electrical Code, Part II, which is applicable. If no such Standa
24、rd exists, spacings shall be the subject of investigation. 4.13 Leakage Current 4.13.1 Leakage Current in the “As Received“ Condition. The leakage current of a transformer shall not exceed 0.5 mA in the “as received“ condition when tested in accordance with Clause 6.3. Note: Leakage current refers t
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