{"id":238398,"date":"2024-10-19T15:34:47","date_gmt":"2024-10-19T15:34:47","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-50281-1-11999\/"},"modified":"2024-10-25T10:15:27","modified_gmt":"2024-10-25T10:15:27","slug":"bs-en-50281-1-11999","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-50281-1-11999\/","title":{"rendered":"BS EN 50281-1-1:1999"},"content":{"rendered":"

Specifies requirements for design, construction and testing based on limitation of maximum surface temperature, restriction of dust ingress and use of dust-tight or dust protected enclosures.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nBRITISH STANDARD <\/td>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
4<\/td>\nForeword
Foreword to amendment A1
Contents <\/td>\n<\/tr>\n
5<\/td>\nIntroduction
1 Scope <\/td>\n<\/tr>\n
6<\/td>\n2 Normative references <\/td>\n<\/tr>\n
7<\/td>\n3 Definitions
3.1 dust
3.2 combustible dust
3.3 conductive dust
3.4 explosive dust atmosphere
3.5 ignition temperature of a dust layer
3.6 ignition temperature of a dust cloud
3.7 dust ignition protection
3.8 dust-tight enclosure
3.9 dust-protected enclosure
3.10 maximum surface temperature
3.11 maximum permissible surface temperature <\/td>\n<\/tr>\n
8<\/td>\n3.12 equipment group II category 1
3.13 equipment group II category 2
3.14 equipment group II category 3
4 Requirements for all category 1 and 2 electrical apparatus
4.1 General <\/td>\n<\/tr>\n
9<\/td>\n4.2 Non metallic enclosures and non metallic parts of enclosures <\/td>\n<\/tr>\n
10<\/td>\n4.3 Fasteners
4.4 Interlocking devices
4.5 Bushings in enclosures
4.6 Materials used for cementing <\/td>\n<\/tr>\n
11<\/td>\n4.7 Connection facilities and terminal compartments
4.8 Connection facilities for earthing and bonding conductors
Table 1 – Minimum cross-sectional areas of protective conductors
4.9 Cable and conduit entries <\/td>\n<\/tr>\n
12<\/td>\n4.10 Radiating equipment
5 Supplementary requirements for certain category\ufffd2\ufffdelectrical apparatus
5.1 Rotating electrical machines <\/td>\n<\/tr>\n
13<\/td>\n5.2 Switchgear <\/td>\n<\/tr>\n
14<\/td>\n5.3 Fuses
5.4 Plugs and sockets
5.5 Luminaires <\/td>\n<\/tr>\n
15<\/td>\n5.6 Caplights, caplamps and handlamps
6 Requirements for all category 3 electrical apparatus
6.1 General
6.2 Non-metallic enclosures and non-metallic parts of enclosures <\/td>\n<\/tr>\n
16<\/td>\n6.3 Fasteners
6.4 Interlocking devices
6.5 Bushings in enclosures
6.6 Materials used for cementing
6.7 Connection facilities and terminal compartments
6.8 Connection facilities for earthing and bonding conductors <\/td>\n<\/tr>\n
17<\/td>\nTable 2 – Minimum cross-sectional areas of protective conductors
6.9 Cable and conduit entries
6.10 Radiating equipment <\/td>\n<\/tr>\n
18<\/td>\n7 Supplementary requirements for certain category\ufffd3 electrical apparatus
7.1 Rotating electrical machines
7.2 Switchgear
7.3 Fuses
7.4 Plugs and sockets <\/td>\n<\/tr>\n
19<\/td>\n7.5 Luminaires
7.6 Caplights, caplamps and handlamps <\/td>\n<\/tr>\n
20<\/td>\n8 Type verification and tests
9 Dust tightness test
9.1 Dust tight apparatus
9.2 Dust protected apparatus
10 Thermal tests for category 1, 2 and 3 electrical apparatus
10.1 Temperature measurement <\/td>\n<\/tr>\n
21<\/td>\n10.2 Temperature control
10.3 Ambient temperature range <\/td>\n<\/tr>\n
22<\/td>\n10.4 Maximum surface temperature of the enclosure\ufffdT
10.5 Category 1 apparatus
11 Marking
11.1 The electrical apparatus shall be marked on the main part in a visible place. This marking s…
11.2 The marking shall include:
11.3 Supplementary marking of apparatus <\/td>\n<\/tr>\n
23<\/td>\n12 Examples of marking
12.1 Marking for category 1 or 2 apparatus
12.2 Marking for category 3 apparatus <\/td>\n<\/tr>\n
24<\/td>\n13 Instructions <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Electrical apparatus for use in the presence of combustible dust. Electrical apparatus protected by enclosures – Construction and testing<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2002<\/td>\n26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":238403,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[551,2641],"product_tag":[],"class_list":{"0":"post-238398","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-260-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/238398","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\/238403"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=238398"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=238398"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=238398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}