{"id":238396,"date":"2024-10-19T15:34:47","date_gmt":"2024-10-19T15:34:47","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-50281-1-21999\/"},"modified":"2024-10-25T10:15:26","modified_gmt":"2024-10-25T10:15:26","slug":"bs-en-50281-1-21999","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-50281-1-21999\/","title":{"rendered":"BS EN 50281-1-2:1999"},"content":{"rendered":"

Gives guidance on selection, installation and maintenance of electrical apparatus to be constructed in accordance with BS EN 50281-1-1.<\/p>\n

PDF Catalog<\/h4>\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
3 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 <\/td>\n<\/tr>\n
7<\/td>\n3.8 dust-tight enclosure
3.9 dust-protected enclosure
3.10 maximum surface temperature
3.11 maximum permissible surface temperature
4 Area classification
4.1 Zone 20
4.2 Zone 21
4.3 Zone 22 <\/td>\n<\/tr>\n
8<\/td>\n5 Selection of apparatus
6 Temperature limitation
6.1 Temperature limitations because of the presence of dust clouds
6.2 Temperature limitation because of the presence of dust layers <\/td>\n<\/tr>\n
9<\/td>\nFigure 1 – Reduction in maximum permissible surface temperature for increasing depth of dust layers
6.3 Apparatus to be submitted to laboratory investigation <\/td>\n<\/tr>\n
10<\/td>\n6.4 Maximum permissible surface temperature
7 Selection of dust ignition protected apparatus
8 Selection of radiating equipment
8.1 Ignition process <\/td>\n<\/tr>\n
11<\/td>\n8.2 Safety measures in all Zones
9 Selection of ultrasonic equipment
9.1 Ignition process
9.2 Safety measures
10 Installation requirements
10.1 General
10.2 Access for inspection <\/td>\n<\/tr>\n
12<\/td>\n10.3 Plans and records
10.4 Installation of apparatus
10.5 Integrity of insulation
10.6 Isolation
11 Wiring systems
11.1 Types of wiring
11.2 Electrostatic build\ufffdup of charges
11.3 Dust collection
11.4 Entries <\/td>\n<\/tr>\n
13<\/td>\n11.5 Accessories
11.6 Course of wiring
11.7 Thermal rating
11.8 Barriers
11.9 Flexible connection
11.10 Metal conduit systems
11.11 Plastic conduit systems
11.12 Conduit system joints <\/td>\n<\/tr>\n
14<\/td>\n12 Inspection and maintenance
12.1 Qualifications of personnel
12.2 Isolation
12.3 Maintenance
12.4 Examination <\/td>\n<\/tr>\n
15<\/td>\nAnnex A (informative) Examples for dust layers with excessive thickness with the requirement of laborator… <\/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 – Selection, installation and maintenance<\/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>\n16<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":238401,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[551,2641],"product_tag":[],"class_list":{"0":"post-238396","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\/238396","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\/238401"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=238396"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=238396"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=238396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}