Non-metallic metering box
Mainly SMC, DMC, the box has insulation, high temperature resistance, aging resistance, impact resistance, anti-corrosion, moisture-proof, waterproof, reliable, fully enclosed management for the electricity metering device, with a closed metering loop, preventing electricity theft, easy to Meter reading and other functions.
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Description
Product Overview
Mainly SMC, DMC, the box has insulation, high temperature resistance, aging resistance, impact resistance, anti-corrosion, moisture-proof, waterproof, reliable, fully enclosed management for the electricity metering device, with a closed metering loop, preventing electricity theft, easy to Meter reading and other functions.
Conditions of Use
1. Ambient temperature: -40°C to +40°C, and the average temperature within 24h does not exceed +35°C;
2. Relative humidity: +20℃, no more than 90%; +40℃, no more than 50%. When the upper limit temperature is 25℃, the relative humidity can be as high as 100% in a short time;
3. Upper limit wind speed: no more than 35m/s;
4. Altitude: ≤2000m;
5. Earthquake intensity: designed according to 7 degrees, the peak acceleration of ground motion is 0.1g, and the characteristic period of earthquake is 0.35s;
6. Sunlight intensity: 0.1W/cm2;
7. Pollution level: Level 3;
8. Places without strong corrosive gas, strong magnetic field interference and strong vibration source; no obvious pollution of dust, smoke, corrosive or flammable gas, water vapor or salt.
Note: Products under special environmental conditions can be provided to users according to the agreed conditions.
Product Standards
GB/T7251.1——2013 Low-voltage switchgear and control equipment: type test and partial type test complete equipment
GB7251.3-2006 Low-voltage switchgear and control equipment Part III: Low-voltage switchgear and control equipment accessible to non-professionals - special requirements for switchboards
GB7251.5-2008 Low-voltage switchgear and control equipment, Part 5, complete sets of equipment for outdoor public places
GB 17466.1-2008 General requirements for installation boxes and enclosures of electrical accessories for household and similar fixed electrical installations
GB/T16934-1997 Electric energy metering cabinet
GB50054-2011 Low-voltage power supply and distribution design code
GB50096-2011 Residential Design Code
GB50303-2015 Code for acceptance of construction quality of building electrical engineering
GB5169.1 1-2006 Fire Hazard of Electrical and Electronic Products, Glow Wire Test and Guidelines for Finished Products
GB 14048.2-2008 Low-voltage switchgear and control equipment-low-voltage circuit breakers
GB4208-2008 Enclosure Protection Level (IP Code)
GB Ting 23686-2009 Design Guidelines for Environmental Awareness of Low-Voltage Electrical Appliances
GB Ting 16422.2-2014 Test method for plastic laboratory light source exposure
DL/T448-2016 Electric energy metering installation technical management regulations
DL/T599-2005 Technical Guidelines for Urban Medium and Low Voltage Power Grid Transformation
DL/T825-2002 Electric energy metering installation wiring rules
DL/T5131-2015 Technical Guidelines for Rural Power Grid Construction and Transformation
DL/T5137-2001 Technical Specifications for Design of Electrical Measurement and Electric Energy Metering Equipment
DL/T5202-2004 Technical Specifications for Design of Electric Energy Metering System
Key Features
1. Flame retardant performance: It has V-0 grade flame retardant performance, temperature resistance > 130℃.
2. Insulation resistance: The insulation resistance of the measuring box is not less than 20MΩ.
3. Electric strength: apply 50Hz/2500V voltage for 1 minute, no arcing, breakdown lightning phenomenon should occur.
4. Acid and alkali resistance: drop 1 mL of acid-base solution with a concentration of 3% on the surface of the box, wipe it off after 1 hour, and there is no crack or delamination on the surface of the box.
5. Anti-static pressure performance 100kg weight (volume 10cm*10cm).
6. Put it in any position of the product for 3 minutes without cracking or damage.
7. Resistance to static extrusion: apply 100kg gravity to the flat metering box, and the metering box has no cracks, peeling, or damage after 1 minute.
8. Climate influence: The product runs under the environment of 30℃±10℃ outside, 75℃ inside and long-term sunlight exposure, or runs continuously for 4 hours at a low temperature of 45℃±3℃, and the box body should not be deformed, Does not crack and maintains transparency.
9. Impact resistance: The product is free-fall test from a height of 2m under the condition that the fixing screw is tightened (without packaging), and the box should be kept intact.
10. Sandbag impact resistance: The 7kg sandbag is freely dropped from a height of 1m for 5 times, and there are no abnormal phenomena such as cracks and breaks in the measuring box.
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