JYT-H insulated ladder: specification 1.5-6 M, with platform, no lifting, generally called "herringbone ladder" by customers, with narrow step width 38cm , to be added every step 3cm ； The face of the ladder is ABS The injection surface is provided with diagonal staggered grooves for slip resistance. The tread itself can be used to place some small tools during personnel maintenance. The combined ladder is equipped with red nylon strap to prevent the ladder from opening too large when using, so as to ensure the safety of personnel.
1. Product material: epoxy resin glass fiber reinforced plastic
2. Product ladder material: ladder material is made of machine pultruded epoxy square tube, and single ladder and combined ladder are generally made of 30*60mm Square tube, wall thickness 3mm ； Elevator seven Below meters 30*70mm Of nine Zigzag tube, seven For more than meters 30*80mm Of nine Word tube.
3. Product process: Punch punching process is adopted, and the pin bar is engaged. These processes are relatively high for raw materials.
4. Withstand voltage level: 35KV —— two Above meters; 110KV —— three Above meters; 220KV —— four Above meters
5. Ladder bearing: 150KG
6. The certificate is made of aluminum, and there is a self-adhesive instruction below the certificate
7、 Features of insulated elevator:
(1) Non-conductive, The appearance is novel and elegant
（2） Corrosion resistance
（3） Light weight, convenient handling
（4） Low water absorption and good flame retardancy (flame propagation rate of ordinary flame retardant grille (ASTM E-84) shall not exceed 25; The flame propagation rate of superior flame-retardant vinyl grille shall not exceed 10. Oxygen index not less than 28 (GB 8924)
(5) High strength, light weight (the density of glass fiber reinforced plastic grille is not more than 2, only 1/4 of steel and 2/3 of aluminum. Its strength is 10 times that of rigid PVC, and its excellent strength exceeds that of aluminum and ordinary steel), excellent impact resistance, insulation and magnetic permeability
