Elevator control cable selection is based on what
In the selection of wire and cable, the general attention to wire and cable models, specifications (conductor cross-section) choice. ⒈ wire and cable models to choose the choice of wire and cable, to consider the use, laying conditions and safety; for example, depending on the use of different power cables can be used, overhead insulated cables, control cables, etc .; depending on the laying of different conditions, Plastic insulated cable, steel armored cable, steel armored cable, anti-corrosion cable, etc .; according to safety requirements, can choose non-flame retardant cable, flame retardant cable, halogen-free flame retardant cable, fire-resistant cable. ⒉ wire and cable specifications to determine the use of wire and cable specifications (conductor cross-section), the general should consider the heat, voltage loss, economic current density, mechanical strength and other selection conditions. According to experience, low-voltage power line because of its large load current, it is generally selected according to the heat conditions, cross-section, and then check the voltage loss and mechanical strength; low-voltage lighting line because of its higher voltage level, the first voltage loss conditions Select the cross-section, and then check the heat conditions and mechanical strength; for high-voltage lines, the first by the economic current density selection section, and then check the heat conditions and allow the voltage loss; and high-voltage overhead lines, but also check its mechanical strength. If the user has no experience, should consult the relevant professional units or people's views.
Electrical performance is nothing more than to meet the current carrying capacity, voltage drop, physical properties to meet the tensile strength, flexibility, oil resistance. Wear and so on. Other see "GB-2007 power engineering cable design specifications", search for "industrial automation integrated cable solutions" can be checked.
"GB / T5013.5-2008 rated voltage 450 / 750V and below rubber insulated cable" Part 5: elevator cable This part gives the rated voltage of 300 / 500V rubber insulated elevator cable technical requirements of the factory in accordance with this standard for the production formula Is the general you see the elevator with the cable what the standard "GB-93 electrical installation installation elevator electrical installation and acceptance of the specification" site in accordance with this construction acceptance although the 93 standard but not yet abolished to understand?
