{"id":3032,"date":"2022-06-06T13:56:11","date_gmt":"2022-06-06T13:56:11","guid":{"rendered":"https:\/\/2022.satiplugs.it\/news\/curiosity\/"},"modified":"2024-03-26T09:49:46","modified_gmt":"2024-03-26T09:49:46","slug":"curiosity","status":"publish","type":"page","link":"https:\/\/www.satiplugs.it\/en\/news\/curiosity\/","title":{"rendered":"Curiosity"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Page Title Section&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; use_background_color_gradient=&#8221;on&#8221; background_color_gradient_direction=&#8221;120deg&#8221; background_color_gradient_stops=&#8221;rgba(0,0,0,0) 0%|rgba(0,0,0,0) 100%&#8221; background_color_gradient_overlays_image=&#8221;on&#8221; background_color_gradient_start=&#8221;#000000&#8243; background_color_gradient_end=&#8221;rgba(0,0,0,0)&#8221; background_image=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2022\/06\/Spine-connettori-Satiplugs.jpg&#8221; custom_padding=&#8221;110px||350px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Class Details Section&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;rgba(183,183,183,0)&#8221; custom_padding=&#8221;90px||0px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row column_structure=&#8221;2_5,3_5&#8243; admin_label=&#8221;Class Details Area&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;27px|0px|60px|0px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Title&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;||||||||&#8221; text_font_size=&#8221;35px&#8221; header_font=&#8221;||||||||&#8221; header_2_font=&#8221;Poppins|600|||||||&#8221; header_2_text_align=&#8221;center&#8221; header_2_font_size=&#8221;36px&#8221; header_2_line_height=&#8221;1.2em&#8221; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; custom_margin=&#8221;||0px|&#8221; custom_padding=&#8221;|||&#8221; animation_style=&#8221;fade&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>Curiosity: The electric plug<\/p>\n<p>[\/et_pb_text][et_pb_divider color=&#8221;#E02B20&#8243; divider_weight=&#8221;3px&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;18%&#8221; max_width=&#8221;100%&#8221; min_height=&#8221;18px&#8221; custom_margin=&#8221;12px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider][et_pb_image src=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2022\/09\/Tripin_1911.jpg&#8221; title_text=&#8221;Tripin_1911&#8243; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; box_shadow_style=&#8221;preset1&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Title&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;||||||||&#8221; text_font_size=&#8221;18px&#8221; header_font=&#8221;||||||||&#8221; header_2_font=&#8221;Poppins|600|||||||&#8221; header_2_text_align=&#8221;center&#8221; header_2_font_size=&#8221;36px&#8221; header_2_line_height=&#8221;1.2em&#8221; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; custom_margin=&#8221;||0px|&#8221; custom_padding=&#8221;|||&#8221; animation_style=&#8221;fade&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><span style=\"color: #ff0000;\"><strong>Who invented the electric plug?<\/strong><\/span><\/p>\n<p><span id=\"more-1343\"><\/span>Perhaps not everyone knows the story of the <span style=\"color: #ff0000;\"><strong>Electric Plug<\/strong><\/span><strong><span style=\"color: #ff0000;\"> span<\/span>\u00a0<\/strong>and how to select it based on the country of use.<strong><span style=\"color: #ff0000;\"><strong>Mr. Harvey Hubbel <\/strong><\/span><\/strong>(1857-1927) was born in Bridgetport Connecticut, he was: <span style=\"color: #ff0000;\"><strong>Inventor, entrepreneur and industrialist.<\/strong><\/span><\/p>\n<p>In 1904 he invented the electric power plug for the United States, later with the spread of the use of electricity both for heating and for household appliances, this new and practical connection system became necessary .<\/p>\n<p>Subsequently, each country decided to develop its own plug\/socket instead of following the path of unification, this is the reason why we are inundated with different types of plugs.<\/p>\n<p>There have been several attempts to create the Europlug, but individual countries are extremely reluctant to apply this standard. The change, even if very slow, has already begun, the European Commission has studied and created a new electric plug; IEC 60906-1 (phases + earth 250V) and in 1986 the International Electrotechnical Commission made the new model public.<\/p>\n<p>To date, no one has used this new type of plug, only Brazil has adopted it, calling it NBR. There have been successive changes; IEC 60906-2 for 125V and IEC 60906-3 for L.V.\u201d<\/p>\n<p>&nbsp;<\/p>\n<p><a title=\"visit the site www.tropiland.it\/spine\/\" href=\"http:\/\/www.tropiland.it\/spine\/\" target=\"_blank\" rel=\"noopener noreferrer\">www. tropiland.it\/spine\/<\/a> <a title=\"visit the site electrical standards in the world\" href=\"http:\/\/it.wikipedia.org\/wiki\/Standard_elettrici_nel_mondo\" target=\" _blank\" rel=\"noopener noreferrer\">it.wikipedia.org\/wiki\/Standard-elettrici-nel-mondo<\/a><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;3_5,2_5&#8243; admin_label=&#8221;Class Details Area&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;rgba(0,0,0,0.96)&#8221; custom_padding=&#8221;27px|0px|60px|0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Title&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;||||||||&#8221; text_font_size=&#8221;35px&#8221; header_font=&#8221;||||||||&#8221; header_2_font=&#8221;Poppins|600|||||||&#8221; header_2_text_align=&#8221;center&#8221; header_2_font_size=&#8221;36px&#8221; header_2_line_height=&#8221;1.2em&#8221; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; custom_margin=&#8221;||0px|21px|false|false&#8221; custom_padding=&#8221;|||&#8221; animation_style=&#8221;fade&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>Curiosity: The Schuko plug<\/p>\n<p>[\/et_pb_text][et_pb_divider color=&#8221;#E02B20&#8243; divider_weight=&#8221;3px&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;18%&#8221; max_width=&#8221;100%&#8221; min_height=&#8221;18px&#8221; custom_margin=&#8221;12px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider][et_pb_text admin_label=&#8221;Title&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;||||||||&#8221; text_font_size=&#8221;18px&#8221; header_font=&#8221;||||||||&#8221; header_2_font=&#8221;Poppins|600|||||||&#8221; header_2_text_align=&#8221;center&#8221; header_2_font_size=&#8221;36px&#8221; header_2_line_height=&#8221;1.2em&#8221; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; custom_margin=&#8221;93px||0px|29px|false|false&#8221; custom_padding=&#8221;|||&#8221; animation_style=&#8221;fade&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p>The Schuko system was born in <span style=\"color: #ff0000;\"><strong>Germany<\/strong><\/span> from a patent (DE 370538) filed in <span style=\"color: #ff0000;\">1926<\/span> by <span style=\"color: #ff0000;\"><strong>Albert B\u00fcttner<\/strong><\/span>, founder of the \u2018Bayerische Elektrozubeh\u00f6r GmbH\u2019 (today ABL Sursum Bayerische Elektrozubeh\u00f6r GmbH und Co. KG). Bayerische Elektro AG obtained the DE 489003 patent in 1930 for einen connecter mit Erdungseinrichtung granted.<\/p>\n<p><span style=\"color: #ff0000;\"><strong>Today this system is used in over 40 countries.<\/strong><\/span><\/p>\n<p style=\"font-weight: 400;\">(From: wikipedia\/google)<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_image src=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2023\/02\/Schuko-tripolare.jpg&#8221; title_text=&#8221;Schuko-tripolare&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;|21px|||false|false&#8221; custom_padding=&#8221;|5px|||false|false&#8221; box_shadow_style=&#8221;preset1&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221;][et_pb_column _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; type=&#8221;4_4&#8243;]<\/p>\n<p>[et_pb_divider color=&#8221;#E02B20&#8243; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider]<\/p>\n<p>[\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;2_5,3_5&#8243; admin_label=&#8221;Class Details Area&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;27px|0px|60px|0px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Title&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;||||||||&#8221; text_font_size=&#8221;35px&#8221; header_font=&#8221;||||||||&#8221; header_2_font=&#8221;Poppins|600|||||||&#8221; header_2_text_align=&#8221;center&#8221; header_2_font_size=&#8221;36px&#8221; header_2_line_height=&#8221;1.2em&#8221; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; custom_margin=&#8221;||0px|&#8221; custom_padding=&#8221;|||&#8221; animation_style=&#8221;fade&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>Curiosity: The EU plug<\/p>\n<p>[\/et_pb_text][et_pb_divider color=&#8221;#E02B20&#8243; divider_weight=&#8221;3px&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;18%&#8221; max_width=&#8221;100%&#8221; min_height=&#8221;18px&#8221; custom_margin=&#8221;12px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider][et_pb_image src=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2023\/02\/EU-Spina.jpg&#8221; title_text=&#8221;EU-Spina&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; box_shadow_style=&#8221;preset1&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Title&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;||||||||&#8221; text_font_size=&#8221;18px&#8221; header_font=&#8221;||||||||&#8221; header_2_font=&#8221;Poppins|600|||||||&#8221; header_2_text_align=&#8221;center&#8221; header_2_font_size=&#8221;36px&#8221; header_2_line_height=&#8221;1.2em&#8221; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; custom_margin=&#8221;93px||0px|||&#8221; custom_padding=&#8221;|||&#8221; animation_style=&#8221;fade&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>The <span style=\"color: #ff0000;\"><strong>Europlug<\/strong><\/span>\u00a0 is an <span style=\"color: #ff0000;\"><strong>electrical plug<\/strong><\/span> for domestic use flat and with two contacts, prepared for <strong><span style=\"color: #ff0000;\">voltages<\/span><\/strong> up to <span style=\"color: #ff0000;\"><strong>250 V<\/strong><\/span> and <span style=\"color: #ff0000;\"><strong>currents<\/strong><\/span> up to 2.5 A.<\/p>\n<p>This model is a compromise aimed at the safe connection of <span style=\"color: #ff0000;\"><strong>energy-efficient Class II<\/strong><\/span> appliances to different types of household electrical outlets with cylindrical contacts used in <strong><span style=\"color: #ff0000;\">Europe<\/span><\/strong>.<\/p>\n<p>However, it is not compatible with the rectangular contacts of BS 1363 type electrical outlets used in <strong><span style=\"color: #ff0000;\">Cyprus, Gibraltar, Ireland, Malta and the United Kingdom.<\/span><\/strong><\/p>\n<p>(From Wikipedia\/google)<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Class Details Section&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#000000&#8243; custom_padding=&#8221;90px||0px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row column_structure=&#8221;2_5,3_5&#8243; admin_label=&#8221;Class Details Area&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;27px|0px|60px|0px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Title&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;||||||||&#8221; text_font_size=&#8221;35px&#8221; header_font=&#8221;||||||||&#8221; header_2_font=&#8221;Poppins|600|||||||&#8221; header_2_text_align=&#8221;center&#8221; header_2_font_size=&#8221;36px&#8221; header_2_line_height=&#8221;1.2em&#8221; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; custom_margin=&#8221;||0px|&#8221; custom_padding=&#8221;|||&#8221; animation_style=&#8221;fade&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>Curiosity: Power cables<\/p>\n<p>[\/et_pb_text][et_pb_divider color=&#8221;#E02B20&#8243; divider_weight=&#8221;3px&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; width=&#8221;18%&#8221; max_width=&#8221;100%&#8221; min_height=&#8221;18px&#8221; custom_margin=&#8221;12px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider][et_pb_image src=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2022\/09\/Satiplugs-22-cavi-quadr.jpg&#8221; title_text=&#8221;Satiplugs-22-cables&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; animation_style=&#8221;fade&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Title&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;||||||||&#8221; text_font_size=&#8221;18px&#8221; header_font=&#8221;||||||||&#8221; header_2_font=&#8221;Poppins|600|||||||&#8221; header_2_text_align=&#8221;center&#8221; header_2_font_size=&#8221;36px&#8221; header_2_line_height=&#8221;1.2em&#8221; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; min_height=&#8221;391px&#8221; custom_margin=&#8221;||0px|&#8221; custom_padding=&#8221;|||&#8221; animation_style=&#8221;fade&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p style=\"font-weight: 400;\">Power cables are made up of one or more elements called cores. Based on the number of cores they are called: unipolar, bipolar, tripolar, quadripolar etc. and their number is determined by the particular electrical system of which they are a part. Each core is made up of a <span style=\"color: #e02b20;\"> <a style=\"color: #e02b20;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Electrical_conductor\"><strong>conductor<\/strong><\/a><\/span> (by <strong><span style=\"color: #e02b20;\"><a style=\"color: #e02b20;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Copper\">copper <\/a><\/span><\/strong>, by <strong><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Alluminio\">aluminium<\/a><\/span> o sue <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Lega_(metallurgy)\">alloys<\/a><\/span>) covered with a <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Isolante_elettrico\">insulating<\/a><\/span>. <\/strong>The section of the conductor depends on the <span style=\"color: #ff0000;\"><strong>electric current<\/strong><\/span> with which the <strong><span style=\"color: #ff0000;\">electricity<\/span><\/strong> is transmitted.<\/p>\n<p style=\"font-weight: 400;\">The larger the section of the conductor, the more difficult it is to move the cable during its laying and use. When it is necessary to improve its <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Rigidezza\">flexibility&lt;\/a <\/a><\/span>, the conductor is made instead of a single wire or a few wires of large cross-section twisted together (rigid conductor), from many thin wires twisted together (flexible conductor). The thinner the individual threads are, the easier the core is to handle. For each section and size of the conductor (number and section of the individual wires) of a certain type of cable, the manufacturer sets the minimum bending radius below which one must not go down during laying or use of the cable itself in order not to compromise its performance. &#8216;integrity.<\/p>\n<p style=\"font-weight: 400;\">The insulation can be made up of textile material, paper (mostly impregnated with particular insulating oils), <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/it.wikipedia.org\/wiki\/rubber\">rubber<\/a><\/span>, compounds based on <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/it.wikipedia.org\/wiki\/PVC\">PVC<\/a>, <a style=\"color: #ff0000;\" href=\"https:\/\/it.wikipedia. org\/wiki\/Polyethylene\">polyethylene<\/a> <\/span>or other special synthetic materials. The thickness and technical characteristics of the insulation must be such as to ensure that the different conductors never come into contact with each other and that, based on the characteristics of the insulating material used, they are located sufficiently distant so that the different <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Tensione_elettrica\">electric potential<\/a><\/span> that exists between them not gives rise to a <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Scarica_elettrostatica\">electric discharge&lt;\/a <\/a><\/span>.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_3,1_3,1_3&#8243; admin_label=&#8221;Class Details Area&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;27px|0px|0px|0px||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_blurb title=&#8221;PVC cables&#8221; image=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2022\/06\/Terminali-5.jpg&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"font-weight: 400;\"><strong>polyvinyl chloride<\/strong>, also known as <strong>polyvinyl chloride<\/strong> or with the corresponding acronym <strong>PVC<\/strong>, is the<span style=\"color: #ff0000;\"> <a style=\"color: #ff0000;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Polimeri\"><span style=\"color: #ffffff;\">polymer<\/span><\/a><\/span> of the <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Vinyl_chloride\">vinyl chloride<\/a><\/span>, having the formula -(CH<sub>2<\/sub>CHCl)<sub>n<\/sub>&#8211; and <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Peso_molecolare\">molecular weight<\/a><\/span> between the 60 000 and the 150000 <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Unit%C3%A0_di_mass_atomica\">u<\/a>.<\/span> It is the most important polymer of the series obtained from vinyl monomers and is one of the most consumed plastics in the world.<\/p>\n<p style=\"font-weight: 400;\">Polyvinyl chloride was observed by chance on two occasions during the <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it. wikipedia.org\/wiki\/19th_century\">19th century<\/a><\/span>, earlier in<span style=\"color: #ffffff;\"> <a style=\"color: #ffffff;\" href=\"https: \/\/en.wikipedia.org\/wiki\/1835\">1835<\/a><\/span> by <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https :\/\/it.wikipedia.org\/wiki\/Henri-Victor_Regnault\">Henri Victor Regnault<\/a><\/span> and then in the <a href=\"https:\/\/it. wikipedia.org\/wiki\/1872\">1<span style=\"color: #ffffff;\">872<\/span><\/a> from <a href=\"https:\/\/it.wikipedia.org\/w\/index .php?title=Eugen_Baumann&amp;action=edit&amp;redlink=1\">&lt; span style=&#8221;color:#ffffff;&#8221;&gt;Eugen Baumann<\/a>. In both cases a solid white mass of polymer was found inside bottles of <a href=\"https:\/\/it .wikipedia.org\/wiki\/vinyl_chloride\"><span style=\"color: #ffffff;\">vinyl chloride<\/span><\/a> leave exposed to sunlight.<\/p>\n<p style=\"font-weight: 400;\">At the beginning of the <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/20th_century\">20th century<\/a><\/span> attempts to commercially exploit the product by the Russians <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/ \/it.wikipedia.org\/w\/index.php?title=Ivan_Ostromislenskij&amp;action=edit&amp;redlink=1\">Ivan Ostromislenskij<\/a> <\/span>and German <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Fritz_Klatte\">Fritz Klatte<\/a> <\/span>della Griesheim-Elektron were frustrated by the difficulty of working with the material, which was too stiff and brittle.<\/p>\n<p style=\"font-weight: 400;\">In the <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/1926\">1926<\/a>, <a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Waldo_Semon\">Waldo Semon<\/a> <\/span> of the <a href=\"https:\/\/it.wikipedia.org\/wiki\/BF_Goodrich\"><span style=\"color: #ffffff;\">B.F.<\/span> Goodrich<\/a> developed a technique to make the PVC, mixing it with plasticizing additives. The resulting product, more flexible and easier to work with, soon achieved widespread use.<\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_blurb][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_blurb title=&#8221;Rubber cables: RRF&#8221; image=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2022\/10\/Caucciu.jpg&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"font-weight: 400;\">Natural polyisoprene is also called natural rubber or <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki \/Caucci%C3%B9\">caucci\u00f9<\/a>.<\/span> Gummy latexes can be obtained from numerous plants: there are more than three hundred of them, all living in tropical territories. By far the most important is <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Hevea_brasiliensis\">Hevea brasiliensis <\/a>,<\/span> native to the Amazon River basin (Par\u00e0), currently cultivated in all suitable tropical and sub-tropical regions, which alone supplies about 90% of the world production of natural rubber. p&gt;<\/p>\n<p style=\"font-weight: 400;\">Natural rubber, while having many useful properties, also has some drawbacks. Once the rubber products were sticky and smelly, they softened in the heat and hardened in the cold. An attempt was then made, by means of mechanical treatments and mixtures of suitable additives, to make the properties of the rubber stable. An initial success was obtained with Th. Hancock&#8217;s masticator with concentric cylinders which, by enervating the material, made it plastic and suitable for absorbing additives (1820); therefore we turned to the search for chemical-physical processing methods of the compounds and, with suitable solvents (ether, turpentine, petroleum), we managed to obtain relatively stable rubbery solutions suitable for waterproofing fabrics (Ch. MacIntosh, 1823) and to obtain threads rubber bands (Th. Hancock, 1837).<\/p>\n<p style=\"font-weight: 400;\">Complete stability of rubber properties was obtained in 1839 by <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia. org\/wiki\/Charles_Goodyear\">Charles Goodyear<\/a><\/span> who invented <em>vulcanization<\/em>, a process by which crosslinks are created between chains polymers by heating the rubber in the presence of sulphur. The crosslinks increase the resistance of the rubber and act in a certain sense as a &#8220;memory&#8221; which helps the polymer to return to its original shape after stretching.<\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_blurb][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_blurb title=&#8221;Neoprene cables: RNf&#8221; image=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2022\/10\/neoprene.jpg&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"font-weight: 400;\"><strong>neoprene<\/strong> is the trade name of the company &#8220;<span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/ \/it.wikipedia.org\/wiki\/DuPont\">DuPont Performance Elastomers<\/a><\/span>&#8221; for a family of <a href=\"https:\/\/it.wikipedia. org\/wiki\/Gum\"><span style=\"color: #ffffff;\">rubbers<\/span><\/a> synthetic rubbers based on the <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https: \/\/en.wikipedia.org\/wiki\/Polychloroprene\">polychloroprene<\/a><\/span> (<span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https :\/\/it.wikipedia.org\/wiki\/Polimero\">polymeric shape<\/a> <\/span>del <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Cloroprene\">chloroprene<\/a><\/span>)<sup><a href=\"https:\/\/it.wikipedia .org\/wiki\/Neoprene#cite_note-Treccani-enc-1\">[1]<\/a><\/sup>.<\/p>\n<p style=\"font-weight: 400;\">Neoprene was invented in <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/1930\">1930<\/a><\/span> by scientists <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/w\/ index.php?title=Arnold_Collins&amp;action=edit&amp;redlink=1\">Arnold Collins<\/a><\/span> e <span style=\"color: #ffffff;\">&lt; a href=&#8221;https:\/\/it.wikipedia.org\/wiki\/Wallace_Carothers&#8221; style=&#8221;color: #ffffff;&#8221;&gt;Wallace Carothers<\/span> of the DuPont company after Elmer K. Bolton of the DuPont laboratories attended a conference of <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Julius_Arthur_Nieuwland\">Julius Arthur Nieuwland<\/a>,<\/span> professor of chemistry at the<span style=\"color: #ffffff;\"> <a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/University_of_Notre_Dame\">University of Notre Dame<\/a><sup><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Neoprene#cite_note-ilfattoquotidiano-2\">[2]<\/a><\/sup>.<\/span>&lt; \/p&gt;<\/p>\n<p style=\"font-weight: 400;\">Nieuwland&#8217;s research focused on the chemistry of <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/ wiki\/Acetylene\">acetylene<\/a><\/span> and in the course of his work he produced divinyl acetylene, a gelatin that hardens into an elastic rubber-like compound once passed over the <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Dicloruro_di_sulfo\">dichloride disulfur&lt;\/a &gt;.<\/a><\/span> After DuPont bought the patent rights from the University, Wallace Carothers of DuPont took over the commercial development of Nieuwland&#8217;s discovery in collaboration with Nieuwland. Research at DuPont focused on <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Acetylene\">acetylene <\/a> <\/span>monvinyl and made the substance react with the gas of <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Acido_chloridrico\">hydrochloric acid<\/a>,<\/span> producing the <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/ wiki\/Chloroprene\">chloroprene<\/a>.<\/span><\/p>\n<p style=\"font-weight: 400;\">Neoprene (originally called duprene) was the first mass-produced residue of synthetic rubber. It belongs to the family of <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Elastomer\">synthetic elastomers&lt; \/a&gt; <\/a><\/span>(or <span style=\"color: #ffffff;\"> <a style=\"color: # ffffff;\" href=\"https:\/\/it.wikipedia.org\/wiki\/Rubber_(material)\">synthetic rubbers<\/a><\/span>) and appears as a porous rubber, the mass of which is made up of uniformly distributed gaseous cells. The main characteristics are elasticity, resistance to cutting and crushing, resistance to atmospheric aging and heat, and it is also inert towards many chemical agents, oils and solvents. For these reasons, it finds important applications in the chemical, automotive, nautical industries, and in the production of fittings, gaskets, protective coatings and clothing (for example, <span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\" https:\/\/it.wikipedia.org\/wiki\/Muta_subacquea\">underwater wetsuits<\/a><\/span>).<\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>[et_pb_divider color=&#8221;#E02B20&#8243; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider]<\/p>\n<p>[\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_3,1_3,1_3&#8243; admin_label=&#8221;Class Details Area&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;27px|0px|60px|0px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;RGBA(255,255,255,0)&#8221; background_enable_image=&#8221;off&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;34px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>the rubber<\/p>\n<p>[\/et_pb_text][et_pb_blurb image=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2022\/10\/caucciu-antico.jpg&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_blurb][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_blurb image=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2022\/10\/rubber-1.jpg&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_blurb][et_pb_blurb image=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2022\/10\/Coltivazione-di-gomma-naturale-Contiental-1080&#215;611-1.jpg&#8221; _builder_version=&#8221;4.17.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_blurb][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_blurb image=&#8221;https:\/\/www.satiplugs.it\/wp-content\/uploads\/2022\/10\/caucciu-tubolare.jpg&#8221; _builder_version=&#8221;4.17.0&#8243; 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