{"id":518955,"date":"2024-11-05T14:51:58","date_gmt":"2024-11-05T14:51:58","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/csa-c227-5-08-r2018\/"},"modified":"2024-11-05T14:51:58","modified_gmt":"2024-11-05T14:51:58","slug":"csa-c227-5-08-r2018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/csa\/csa-c227-5-08-r2018\/","title":{"rendered":"CSA C227.5-08 (R2018)"},"content":{"rendered":"

Preface<\/strong><\/p>\n

<\/p>\n

This is the first edition of CSA C227.5, Three-phase live-front pad-mounted distribution transformers. A previous version of this Standard was published as CAN\/CSA-C227.2-88 under the title Three-Phase, Live-Front, Pad-Mounted Distribution Transformers and withdrawn in 1995. The current version includes technical and editorial changes intended to bring this Standard into line with present practice. <\/p>\n

<\/p>\n

Scope<\/strong><\/p>\n

<\/p>\n

1.1<\/p>\n

This Standard specifies requirements for three-phase live-front pad-mounted distribution transformer units that<\/p>\n

<\/p>\n

(a) consist of a transformer and a separable or integral cable entrance compartment<\/p>\n

<\/p>\n

(b) are rated 75 to 3000 kV-A and intended for operation on three-phase underground distribution systems having the preferred rated voltages specified in Tables 1 and 2<\/p>\n

<\/p>\n

(c) are intended for mounting outdoors on pads without additional protective enclosures<\/p>\n

<\/p>\n

1.2<\/p>\n

This Standard does not apply to equipment involving enclosures for housing a separate three-phase transformer or a bank of single-phase transformers (see CAN\/CSA-C2.1).<\/p>\n

<\/p>\n

Note: It is possible that transformers complying with this Standard will, if operated by a body other than an electrical utility, be subject to additional requirements specified by the electrical inspection authority having jurisdiction. <\/p>\n

<\/p>\n

1.3<\/p>\n

This Standard allows for the replacement of a live-front pad-mounted unit by another unit of the same basic physical size from a different manufacturer without modification to cables or pad. This Standard covers terminal arrangements for both radial and loop-feed systems, including certain minimum and other dimensions.<\/p>\n

<\/p>\n

Note: This concept should not be understood to imply that the cable entrance compartment of one manufacturers transformer will be compatible with that of another manufacturers transformer. <\/p>\n

<\/p>\n

1.4<\/p>\n

In CSA Standards, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; may is used to express an option or that which is permissible within the limits of the standard; and can is used to express possibility or capability.<\/p>\n

<\/p>\n

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.<\/p>\n

<\/p>\n

Notes to tables and figures are considered part of the table or figure and may be written as requirements.<\/p>\n

<\/p>\n

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.<\/p>\n","protected":false},"excerpt":{"rendered":"

Three-Phase Live-Front Pad-Mounted Distribution Transformers<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
CSA<\/b><\/a><\/td>\n2008-04-01<\/td>\n46<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":518962,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2674],"product_tag":[],"class_list":{"0":"post-518955","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-csa","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/518955","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/518962"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=518955"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=518955"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=518955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}