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Harmony Star Cold helmet

Shanghai Sunland Industrial Co., Ltd is the top manufacturer of Personal Protect Equipment in China, with 20 years’experience. We are the Chinese government appointed manufacturer for government power,personal protection equipment , medical instruments,construction industry, etc. All the products get the CE, ANSI and related Industry Certificates. All our safety helmets use the top-quality raw material without any recycling material.

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Solutions to meet different needs

We provide exclusive customization of the products logo, using advanced printing technology and technology, not suitable for fading, solid and firm, scratch-proof and anti-smashing, and suitable for various scenes such as construction, mining, warehouse, inspection, etc. Our goal is to satisfy your needs. Demand, do your best.

Highly specialized team and products

Professional team work and production line which can make nice quality in short time.

We trade with an open mind

We abide by the privacy policy and human rights, follow the business order, do our utmost to provide you with a fair and secure trading environment, and look forward to your customers coming to cooperate with us, openly mind and trade with customers, promote common development, and work together for a win-win situation.

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The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems

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Address:No. 3888, Hutai Road, Baoshan District, Shanghai, China

Harmony Star Cold helmet
Lightning Phenomenon Effects and Protection of Structures ...
Lightning Phenomenon Effects and Protection of Structures ...

Lightning, Phenomenon, Effects and ,Protection, of Structures from ,Lightning, Sanketa Shivalli PG student, Power systems branch, NIE college, Mysuru Abstract: ,Lightning, is a sudden electrostatic discharge during an electrical storm between electrically charged

(PDF) Lightning Protection Systems ( AS 1768-2003/7 )
(PDF) Lightning Protection Systems ( AS 1768-2003/7 )

A new methodology, the Collection Volume Method, is given for the placement of ,lightning, rods or “air terminals” for the ,protection, of structures against ,lightning,.

Session: Why When What and Where Lightning Protection is ...
Session: Why When What and Where Lightning Protection is ...

• ,Lightning protection, not mandated • Designed to protect the structure but not a 100% guarantee • Active and passive ,protection, • LPS require equi-potential bonding of all metallic systems • Bond all gas piping (6 AWG) Why, When, What and Where NFPA 780: ,Lightning Protection, System

Lightning Protection System Design and Installation ...
Lightning Protection System Design and Installation ...

Microsoft ,PowerPoint, - ,Lightning Protection, - Public Lecture Dec 2012.,ppt, [Compatibility Mode] Author: beydu Created Date: 12/7/2012 9:49:43 AM ...

Code Q&A: Grounding & Lightning Protection System | EC&M
Code Q&A: Grounding & Lightning Protection System | EC&M

If a ,lightning protection, system is installed on a building/structure, it must be bonded to the building/structure grounding electrode system as per 250.106. The grounding electrode for a ,lightning protection, system must not be used as the required grounding electrode system for the buildings or structures [250.60].

Design Guidelines for Proper Lightning Protection System ...
Design Guidelines for Proper Lightning Protection System ...

A proper ,lightning protection, system design is very important to ensure increased ,protection, of a building against ,lightning, and its effects. Dr. K. Janakiraman, Senior Manager – Product Development, OBO Bettermann India Pvt Ltd explains the design guidelines. During thunderstorms too, high volume of energy is instantaneously released which is more common in nature.

A Beginner’s Guide to Lightning Risks and Protection ...
A Beginner’s Guide to Lightning Risks and Protection ...

Read below to learn the basics of ,lightning, risks, as well as common ,lightning protection, methods to lessen damages. 3 Types of ,Lightning, Risks. Before implementing a ,lightning protection, system, it’s important to understand the risks associated with ,lightning,. Three types of ,lightning, risks that can cause injury or facility downtime.

PowerPoint Presentation
PowerPoint Presentation

Technical Session “,Lightning Protection,” Agenda Highlights from Presentation 1 “Risk assessment for structures” IEC 62305-2 standard gives an exhaustive risk assessment for structures, its contents and connected services This standard should be used for ,protection, need evaluation of the exchange or customer’s buildings and remote site Critical points: Risk evaluation for loss of ...

Lightning Protection System Basics | EC&M
Lightning Protection System Basics | EC&M

Like many other engineering systems, ,lightning protection, is not necessarily a “design preference,” but the need for a ,lightning protection, system is determined by the requirements of NFPA 70 and NFPA 780, a ,lightning, risk assessment, and oftentimes the facility’s insurance carrier.

Lightning Protection by Lightning Eliminators And Consultants
Lightning Protection by Lightning Eliminators And Consultants

Lightning Protection Lightning, is a giant spark of electricity in the atmosphere or between the atmosphere and the ground. In the initial stages of development, air acts as an insulator between the positive and negative charges in the cloud and between the cloud and the ground; however, when the differences in charges becomes too great, this insulating capacity of the air breaks down and there ...